<?xml version="1.0"?>
<div class="add">

<b>let </b><font color="Maroon">c<sub>1</sub></font>, <font color="Maroon">c<sub>2</sub></font>, <font color="Maroon">c<sub>3</sub></font>, <font color="Maroon">c<sub>4</sub></font>, <font color="Maroon">c<sub>5</sub></font>, <font color="Maroon">c<sub>6</sub></font>, <font color="Maroon">c<sub>7</sub></font>, <font color="Maroon">c<sub>8</sub></font>, <font color="Maroon">c<sub>9</sub></font>, <font color="Maroon">c<sub>10</sub></font>, <font color="Maroon">c<sub>11</sub></font>, <font color="Maroon">c<sub>12</sub></font>, <font color="Maroon">c<sub>13</sub></font>, <font color="Maroon">c<sub>14</sub></font>, <font color="Maroon">c<sub>15</sub></font>, <font color="Maroon">c<sub>16</sub></font>, <font color="Maroon">c<sub>17</sub></font>, <font color="Maroon">c<sub>18</sub></font>, <font color="Maroon">c<sub>19</sub></font>, <font color="Maroon">c<sub>20</sub></font>, <font color="Maroon">c<sub>21</sub></font>, <font color="Maroon">c<sub>22</sub></font>, <font color="Maroon">c<sub>23</sub></font>, <font color="Maroon">c<sub>24</sub></font>, <font color="Maroon">c<sub>25</sub></font>, <font color="Maroon">c<sub>26</sub></font>, <font color="Maroon">c<sub>27</sub></font>, <font color="Maroon">c<sub>28</sub></font>, <font color="Maroon">c<sub>29</sub></font>, <font color="Maroon">c<sub>30</sub></font>, <font color="Maroon">c<sub>31</sub></font>, <font color="Maroon">c<sub>32</sub></font>, <font color="Maroon">c<sub>33</sub></font>, <font color="Maroon">c<sub>34</sub></font>, <font color="Maroon">c<sub>35</sub></font>, <font color="Maroon">c<sub>36</sub></font>, <font color="Maroon">c<sub>37</sub></font>, <font color="Maroon">c<sub>38</sub></font>, <font color="Maroon">c<sub>39</sub></font>, <font color="Maroon">c<sub>40</sub></font>, <font color="Maroon">c<sub>41</sub></font>, <font color="Maroon">c<sub>42</sub></font>, <font color="Maroon">c<sub>43</sub></font>, <font color="Maroon">c<sub>44</sub></font>, <font color="Maroon">c<sub>45</sub></font>, <font color="Maroon">c<sub>46</sub></font>, <font color="Maroon">c<sub>47</sub></font>, <font color="Maroon">c<sub>48</sub></font>, <font color="Maroon">c<sub>49</sub></font>, <font color="Maroon">c<sub>50</sub></font>, <font color="Maroon">c<sub>51</sub></font> be    <a href="hidden.html#M1">set</a> ;<br/>

<b>assume </b><b>that </b><br/><a NAME="E1:4"/><i><font color="Green">E1</font></i>: 
(  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>1</sub></font> &amp;  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>17</sub></font> &amp; not  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>50</sub></font> )
 <b>and </b><br/><a NAME="E2:4"/><i><font color="Green">E2</font></i>: 
(  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>34</sub></font> iff  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>51</sub></font>,<font color="Maroon">c<sub>33</sub></font> )
 <b>and </b><br/><a NAME="E3:4"/><i><font color="Green">E3</font></i>: 
(  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>35</sub></font> iff  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>18</sub></font>,<span class="p1">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>2</sub></font>,<font color="Maroon">c<sub>34</sub></font></span>)</span> )
 <b>and </b><br/><a NAME="E4:4"/><i><font color="Green">E4</font></i>: 
(  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>36</sub></font> iff  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>19</sub></font>,<span class="p1">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>3</sub></font>,<font color="Maroon">c<sub>34</sub></font></span>)</span> )
 <b>and </b><br/><a NAME="E5:4"/><i><font color="Green">E5</font></i>: 
(  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>37</sub></font> iff  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>20</sub></font>,<span class="p1">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>4</sub></font>,<font color="Maroon">c<sub>34</sub></font></span>)</span> )
 <b>and </b><br/><a NAME="E6:4"/><i><font color="Green">E6</font></i>: 
(  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>38</sub></font> iff  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>21</sub></font>,<span class="p1">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>5</sub></font>,<font color="Maroon">c<sub>34</sub></font></span>)</span> )
 <b>and </b><br/><a NAME="E7:4"/><i><font color="Green">E7</font></i>: 
(  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>39</sub></font> iff  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>22</sub></font>,<span class="p1">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>6</sub></font>,<font color="Maroon">c<sub>34</sub></font></span>)</span> )
 <b>and </b><br/><a NAME="E8:4"/><i><font color="Green">E8</font></i>: 
(  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>40</sub></font> iff  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>23</sub></font>,<span class="p1">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>7</sub></font>,<font color="Maroon">c<sub>34</sub></font></span>)</span> )
 <b>and </b><br/><a NAME="E9:4"/><i><font color="Green">E9</font></i>: 
(  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>41</sub></font> iff  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>24</sub></font>,<span class="p1">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>8</sub></font>,<font color="Maroon">c<sub>34</sub></font></span>)</span> )
 <b>and </b><br/><a NAME="E10:4"/><i><font color="Green">E10</font></i>: 
(  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>42</sub></font> iff  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>25</sub></font>,<span class="p1">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>9</sub></font>,<font color="Maroon">c<sub>34</sub></font></span>)</span> )
 <b>and </b><br/><a NAME="E11:4"/><i><font color="Green">E11</font></i>: 
(  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>43</sub></font> iff  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>26</sub></font>,<span class="p1">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>10</sub></font>,<font color="Maroon">c<sub>34</sub></font></span>)</span> )
 <b>and </b><br/><a NAME="E12:4"/><i><font color="Green">E12</font></i>: 
(  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>44</sub></font> iff  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>27</sub></font>,<span class="p1">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>11</sub></font>,<font color="Maroon">c<sub>34</sub></font></span>)</span> )
 <b>and </b><br/><a NAME="E13:4"/><i><font color="Green">E13</font></i>: 
(  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>45</sub></font> iff  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>28</sub></font>,<span class="p1">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>12</sub></font>,<font color="Maroon">c<sub>34</sub></font></span>)</span> )
 <b>and </b><br/><a NAME="E14:4"/><i><font color="Green">E14</font></i>: 
(  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>46</sub></font> iff  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>29</sub></font>,<span class="p1">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>13</sub></font>,<font color="Maroon">c<sub>34</sub></font></span>)</span> )
 <b>and </b><br/><a NAME="E15:4"/><i><font color="Green">E15</font></i>: 
(  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>47</sub></font> iff  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>30</sub></font>,<span class="p1">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>14</sub></font>,<font color="Maroon">c<sub>34</sub></font></span>)</span> )
 <b>and </b><br/><a NAME="E16:4"/><i><font color="Green">E16</font></i>: 
(  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>48</sub></font> iff  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>31</sub></font>,<span class="p1">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>15</sub></font>,<font color="Maroon">c<sub>34</sub></font></span>)</span> )
 <b>and </b><br/><a NAME="E17:4"/><i><font color="Green">E17</font></i>: 
(  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>49</sub></font> iff  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>32</sub></font>,<span class="p1">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>16</sub></font>,<font color="Maroon">c<sub>34</sub></font></span>)</span> )
 ;<br/>

<a NAME="E18:4"/>
( ( (  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>32</sub></font>,<span class="p1">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>16</sub></font>,<font color="Maroon">c<sub>33</sub></font></span>)</span> &amp; not  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>50</sub></font>,<span class="p1">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>16</sub></font>,<font color="Maroon">c<sub>51</sub></font></span>)</span> ) or ( not  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>32</sub></font>,<span class="p1">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>16</sub></font>,<font color="Maroon">c<sub>33</sub></font></span>)</span> &amp;  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>50</sub></font>,<span class="p1">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>16</sub></font>,<font color="Maroon">c<sub>51</sub></font></span>)</span> ) ) iff  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K4">XOR2</a> <span class="p1">(<span class="default"><a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>32</sub></font>,<span class="p2">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>16</sub></font>,<font color="Maroon">c<sub>33</sub></font></span>)</span></span>)</span>,<span class="p1">(<span class="default"><a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>50</sub></font>,<span class="p2">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>16</sub></font>,<font color="Maroon">c<sub>51</sub></font></span>)</span></span>)</span> )
 
<b>by </b><i><a class="ref" href="gate_1.html#T8">GATE_1:8</a></i>;<br/>
<a NAME="E19:4"/><b>then </b>
( ( ( ( (  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>32</sub></font> &amp; not  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>16</sub></font>,<font color="Maroon">c<sub>33</sub></font> ) or ( not  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>32</sub></font> &amp;  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>16</sub></font>,<font color="Maroon">c<sub>33</sub></font> ) ) &amp; not  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>16</sub></font>,<font color="Maroon">c<sub>51</sub></font> ) or ( not <!--HUMANRECFAILED-->(  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>32</sub></font> &amp; not  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>16</sub></font>,<font color="Maroon">c<sub>33</sub></font> ) &amp; not <!--HUMANRECFAILED-->( not  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>32</sub></font> &amp;  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>16</sub></font>,<font color="Maroon">c<sub>33</sub></font> ) &amp;  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>16</sub></font>,<font color="Maroon">c<sub>51</sub></font> ) ) iff  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K4">XOR2</a> <span class="p1">(<span class="default"><a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>32</sub></font>,<span class="p2">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>16</sub></font>,<font color="Maroon">c<sub>33</sub></font></span>)</span></span>)</span>,<span class="p1">(<span class="default"><a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>50</sub></font>,<span class="p2">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>16</sub></font>,<font color="Maroon">c<sub>51</sub></font></span>)</span></span>)</span> )
 
<b>by </b><i><a class="txt" href="gate_4.html#E1:4"><i><font color="Green">E1</font></i></a>, <a class="ref" href="gate_1.html#T8">GATE_1:8</a></i>;<br/>
<a NAME="E20:4"/><b>then </b>
( ( (  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>32</sub></font> &amp; (  not  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>16</sub></font> or  not  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>33</sub></font> ) &amp; (  not  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>16</sub></font> or  not  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>51</sub></font> ) ) or ( not  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>32</sub></font> &amp;  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>16</sub></font> &amp;  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>33</sub></font> &amp; (  not  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>16</sub></font> or  not  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>51</sub></font> ) ) or ( (  not  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>32</sub></font> or (  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>16</sub></font> &amp;  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>33</sub></font> ) ) &amp; (  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>32</sub></font> or  not  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>16</sub></font> or  not  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>33</sub></font> ) &amp;  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>16</sub></font> &amp;  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>51</sub></font> ) ) iff  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K4">XOR2</a> <span class="p1">(<span class="default"><a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>32</sub></font>,<span class="p2">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>16</sub></font>,<font color="Maroon">c<sub>33</sub></font></span>)</span></span>)</span>,<span class="p1">(<span class="default"><a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>50</sub></font>,<span class="p2">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>16</sub></font>,<font color="Maroon">c<sub>51</sub></font></span>)</span></span>)</span> )
 
<b>by </b><i><a class="ref" href="gate_1.html#T6">GATE_1:6</a></i>;<br/>
<a NAME="E21:4"/><b>then </b>
( ( (  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>32</sub></font> &amp; not  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>16</sub></font>,<font color="Maroon">c<sub>34</sub></font> ) or ( not  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>32</sub></font> &amp;  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>16</sub></font>,<font color="Maroon">c<sub>34</sub></font> ) ) iff  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K4">XOR2</a> <span class="p1">(<span class="default"><a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>32</sub></font>,<span class="p2">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>16</sub></font>,<font color="Maroon">c<sub>33</sub></font></span>)</span></span>)</span>,<span class="p1">(<span class="default"><a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>50</sub></font>,<span class="p2">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>16</sub></font>,<font color="Maroon">c<sub>51</sub></font></span>)</span></span>)</span> )
 
<b>by </b><i><a class="txt" href="gate_4.html#E2:4"><i><font color="Green">E2</font></i></a>, <a class="ref" href="gate_1.html#T6">GATE_1:6</a>, <a class="ref" href="gate_1.html#T8">GATE_1:8</a></i>;<br/>
<b>hence </b><a NAME="E22:4"/>
(  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>49</sub></font> iff  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K4">XOR2</a> <span class="p1">(<span class="default"><a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>32</sub></font>,<span class="p2">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>16</sub></font>,<font color="Maroon">c<sub>33</sub></font></span>)</span></span>)</span>,<span class="p1">(<span class="default"><a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>50</sub></font>,<span class="p2">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>16</sub></font>,<font color="Maroon">c<sub>51</sub></font></span>)</span></span>)</span> )
 <b>by </b><i><a class="txt" href="gate_4.html#E17:4"><i><font color="Green">E17</font></i></a>, <a class="ref" href="gate_1.html#T8">GATE_1:8</a></i>;<br/>

<a NAME="E23:4"/>
( ( (  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>31</sub></font>,<span class="p1">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>15</sub></font>,<font color="Maroon">c<sub>33</sub></font></span>)</span> &amp; not  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>50</sub></font>,<span class="p1">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>15</sub></font>,<font color="Maroon">c<sub>51</sub></font></span>)</span> ) or ( not  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>31</sub></font>,<span class="p1">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>15</sub></font>,<font color="Maroon">c<sub>33</sub></font></span>)</span> &amp;  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>50</sub></font>,<span class="p1">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>15</sub></font>,<font color="Maroon">c<sub>51</sub></font></span>)</span> ) ) iff  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K4">XOR2</a> <span class="p1">(<span class="default"><a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>31</sub></font>,<span class="p2">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>15</sub></font>,<font color="Maroon">c<sub>33</sub></font></span>)</span></span>)</span>,<span class="p1">(<span class="default"><a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>50</sub></font>,<span class="p2">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>15</sub></font>,<font color="Maroon">c<sub>51</sub></font></span>)</span></span>)</span> )
 
<b>by </b><i><a class="ref" href="gate_1.html#T8">GATE_1:8</a></i>;<br/>
<a NAME="E24:4"/><b>then </b>
( ( ( ( (  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>31</sub></font> &amp; not  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>15</sub></font>,<font color="Maroon">c<sub>33</sub></font> ) or ( not  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>31</sub></font> &amp;  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>15</sub></font>,<font color="Maroon">c<sub>33</sub></font> ) ) &amp; not  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>15</sub></font>,<font color="Maroon">c<sub>51</sub></font> ) or ( not <!--HUMANRECFAILED-->(  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>31</sub></font> &amp; not  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>15</sub></font>,<font color="Maroon">c<sub>33</sub></font> ) &amp; not <!--HUMANRECFAILED-->( not  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>31</sub></font> &amp;  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>15</sub></font>,<font color="Maroon">c<sub>33</sub></font> ) &amp;  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>15</sub></font>,<font color="Maroon">c<sub>51</sub></font> ) ) iff  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K4">XOR2</a> <span class="p1">(<span class="default"><a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>31</sub></font>,<span class="p2">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>15</sub></font>,<font color="Maroon">c<sub>33</sub></font></span>)</span></span>)</span>,<span class="p1">(<span class="default"><a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>50</sub></font>,<span class="p2">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>15</sub></font>,<font color="Maroon">c<sub>51</sub></font></span>)</span></span>)</span> )
 
<b>by </b><i><a class="txt" href="gate_4.html#E1:4"><i><font color="Green">E1</font></i></a>, <a class="ref" href="gate_1.html#T8">GATE_1:8</a></i>;<br/>
<a NAME="E25:4"/><b>then </b>
( ( (  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>31</sub></font> &amp; (  not  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>15</sub></font> or  not  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>33</sub></font> ) &amp; (  not  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>15</sub></font> or  not  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>51</sub></font> ) ) or ( not  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>31</sub></font> &amp;  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>15</sub></font> &amp;  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>33</sub></font> &amp; (  not  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>15</sub></font> or  not  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>51</sub></font> ) ) or ( (  not  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>31</sub></font> or (  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>15</sub></font> &amp;  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>33</sub></font> ) ) &amp; (  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>31</sub></font> or  not  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>15</sub></font> or  not  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>33</sub></font> ) &amp;  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>15</sub></font> &amp;  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>51</sub></font> ) ) iff  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K4">XOR2</a> <span class="p1">(<span class="default"><a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>31</sub></font>,<span class="p2">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>15</sub></font>,<font color="Maroon">c<sub>33</sub></font></span>)</span></span>)</span>,<span class="p1">(<span class="default"><a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>50</sub></font>,<span class="p2">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>15</sub></font>,<font color="Maroon">c<sub>51</sub></font></span>)</span></span>)</span> )
 
<b>by </b><i><a class="ref" href="gate_1.html#T6">GATE_1:6</a></i>;<br/>
<a NAME="E26:4"/><b>then </b>
( ( (  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>31</sub></font> &amp; not  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>15</sub></font>,<font color="Maroon">c<sub>34</sub></font> ) or ( not  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>31</sub></font> &amp;  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>15</sub></font>,<font color="Maroon">c<sub>34</sub></font> ) ) iff  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K4">XOR2</a> <span class="p1">(<span class="default"><a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>31</sub></font>,<span class="p2">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>15</sub></font>,<font color="Maroon">c<sub>33</sub></font></span>)</span></span>)</span>,<span class="p1">(<span class="default"><a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>50</sub></font>,<span class="p2">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>15</sub></font>,<font color="Maroon">c<sub>51</sub></font></span>)</span></span>)</span> )
 
<b>by </b><i><a class="txt" href="gate_4.html#E2:4"><i><font color="Green">E2</font></i></a>, <a class="ref" href="gate_1.html#T6">GATE_1:6</a>, <a class="ref" href="gate_1.html#T8">GATE_1:8</a></i>;<br/>
<b>hence </b><a NAME="E27:4"/>
(  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>48</sub></font> iff  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K4">XOR2</a> <span class="p1">(<span class="default"><a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>31</sub></font>,<span class="p2">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>15</sub></font>,<font color="Maroon">c<sub>33</sub></font></span>)</span></span>)</span>,<span class="p1">(<span class="default"><a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>50</sub></font>,<span class="p2">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>15</sub></font>,<font color="Maroon">c<sub>51</sub></font></span>)</span></span>)</span> )
 <b>by </b><i><a class="txt" href="gate_4.html#E16:4"><i><font color="Green">E16</font></i></a>, <a class="ref" href="gate_1.html#T8">GATE_1:8</a></i>;<br/>

<a NAME="E28:4"/>
( ( (  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>30</sub></font>,<span class="p1">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>14</sub></font>,<font color="Maroon">c<sub>33</sub></font></span>)</span> &amp; not  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>50</sub></font>,<span class="p1">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>14</sub></font>,<font color="Maroon">c<sub>51</sub></font></span>)</span> ) or ( not  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>30</sub></font>,<span class="p1">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>14</sub></font>,<font color="Maroon">c<sub>33</sub></font></span>)</span> &amp;  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>50</sub></font>,<span class="p1">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>14</sub></font>,<font color="Maroon">c<sub>51</sub></font></span>)</span> ) ) iff  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K4">XOR2</a> <span class="p1">(<span class="default"><a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>30</sub></font>,<span class="p2">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>14</sub></font>,<font color="Maroon">c<sub>33</sub></font></span>)</span></span>)</span>,<span class="p1">(<span class="default"><a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>50</sub></font>,<span class="p2">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>14</sub></font>,<font color="Maroon">c<sub>51</sub></font></span>)</span></span>)</span> )
 
<b>by </b><i><a class="ref" href="gate_1.html#T8">GATE_1:8</a></i>;<br/>
<a NAME="E29:4"/><b>then </b>
( ( ( ( (  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>30</sub></font> &amp; not  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>14</sub></font>,<font color="Maroon">c<sub>33</sub></font> ) or ( not  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>30</sub></font> &amp;  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>14</sub></font>,<font color="Maroon">c<sub>33</sub></font> ) ) &amp; not  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>14</sub></font>,<font color="Maroon">c<sub>51</sub></font> ) or ( not <!--HUMANRECFAILED-->(  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>30</sub></font> &amp; not  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>14</sub></font>,<font color="Maroon">c<sub>33</sub></font> ) &amp; not <!--HUMANRECFAILED-->( not  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>30</sub></font> &amp;  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>14</sub></font>,<font color="Maroon">c<sub>33</sub></font> ) &amp;  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>14</sub></font>,<font color="Maroon">c<sub>51</sub></font> ) ) iff  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K4">XOR2</a> <span class="p1">(<span class="default"><a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>30</sub></font>,<span class="p2">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>14</sub></font>,<font color="Maroon">c<sub>33</sub></font></span>)</span></span>)</span>,<span class="p1">(<span class="default"><a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>50</sub></font>,<span class="p2">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>14</sub></font>,<font color="Maroon">c<sub>51</sub></font></span>)</span></span>)</span> )
 
<b>by </b><i><a class="txt" href="gate_4.html#E1:4"><i><font color="Green">E1</font></i></a>, <a class="ref" href="gate_1.html#T8">GATE_1:8</a></i>;<br/>
<a NAME="E30:4"/><b>then </b>
( ( (  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>30</sub></font> &amp; (  not  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>14</sub></font> or  not  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>33</sub></font> ) &amp; (  not  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>14</sub></font> or  not  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>51</sub></font> ) ) or ( not  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>30</sub></font> &amp;  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>14</sub></font> &amp;  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>33</sub></font> &amp; (  not  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>14</sub></font> or  not  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>51</sub></font> ) ) or ( (  not  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>30</sub></font> or (  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>14</sub></font> &amp;  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>33</sub></font> ) ) &amp; (  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>30</sub></font> or  not  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>14</sub></font> or  not  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>33</sub></font> ) &amp;  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>14</sub></font> &amp;  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>51</sub></font> ) ) iff  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K4">XOR2</a> <span class="p1">(<span class="default"><a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>30</sub></font>,<span class="p2">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>14</sub></font>,<font color="Maroon">c<sub>33</sub></font></span>)</span></span>)</span>,<span class="p1">(<span class="default"><a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>50</sub></font>,<span class="p2">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>14</sub></font>,<font color="Maroon">c<sub>51</sub></font></span>)</span></span>)</span> )
 
<b>by </b><i><a class="ref" href="gate_1.html#T6">GATE_1:6</a></i>;<br/>
<a NAME="E31:4"/><b>then </b>
( ( (  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>30</sub></font> &amp; not  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>14</sub></font>,<font color="Maroon">c<sub>34</sub></font> ) or ( not  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>30</sub></font> &amp;  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>14</sub></font>,<font color="Maroon">c<sub>34</sub></font> ) ) iff  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K4">XOR2</a> <span class="p1">(<span class="default"><a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>30</sub></font>,<span class="p2">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>14</sub></font>,<font color="Maroon">c<sub>33</sub></font></span>)</span></span>)</span>,<span class="p1">(<span class="default"><a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>50</sub></font>,<span class="p2">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>14</sub></font>,<font color="Maroon">c<sub>51</sub></font></span>)</span></span>)</span> )
 
<b>by </b><i><a class="txt" href="gate_4.html#E2:4"><i><font color="Green">E2</font></i></a>, <a class="ref" href="gate_1.html#T6">GATE_1:6</a>, <a class="ref" href="gate_1.html#T8">GATE_1:8</a></i>;<br/>
<b>hence </b><a NAME="E32:4"/>
(  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>47</sub></font> iff  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K4">XOR2</a> <span class="p1">(<span class="default"><a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>30</sub></font>,<span class="p2">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>14</sub></font>,<font color="Maroon">c<sub>33</sub></font></span>)</span></span>)</span>,<span class="p1">(<span class="default"><a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>50</sub></font>,<span class="p2">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>14</sub></font>,<font color="Maroon">c<sub>51</sub></font></span>)</span></span>)</span> )
 <b>by </b><i><a class="txt" href="gate_4.html#E15:4"><i><font color="Green">E15</font></i></a>, <a class="ref" href="gate_1.html#T8">GATE_1:8</a></i>;<br/>

<a NAME="E33:4"/>
( ( (  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>29</sub></font>,<span class="p1">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>13</sub></font>,<font color="Maroon">c<sub>33</sub></font></span>)</span> &amp; not  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>50</sub></font>,<span class="p1">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>13</sub></font>,<font color="Maroon">c<sub>51</sub></font></span>)</span> ) or ( not  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>29</sub></font>,<span class="p1">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>13</sub></font>,<font color="Maroon">c<sub>33</sub></font></span>)</span> &amp;  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>50</sub></font>,<span class="p1">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>13</sub></font>,<font color="Maroon">c<sub>51</sub></font></span>)</span> ) ) iff  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K4">XOR2</a> <span class="p1">(<span class="default"><a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>29</sub></font>,<span class="p2">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>13</sub></font>,<font color="Maroon">c<sub>33</sub></font></span>)</span></span>)</span>,<span class="p1">(<span class="default"><a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>50</sub></font>,<span class="p2">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>13</sub></font>,<font color="Maroon">c<sub>51</sub></font></span>)</span></span>)</span> )
 
<b>by </b><i><a class="ref" href="gate_1.html#T8">GATE_1:8</a></i>;<br/>
<a NAME="E34:4"/><b>then </b>
( ( ( ( (  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>29</sub></font> &amp; not  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>13</sub></font>,<font color="Maroon">c<sub>33</sub></font> ) or ( not  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>29</sub></font> &amp;  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>13</sub></font>,<font color="Maroon">c<sub>33</sub></font> ) ) &amp; not  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>13</sub></font>,<font color="Maroon">c<sub>51</sub></font> ) or ( not <!--HUMANRECFAILED-->(  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>29</sub></font> &amp; not  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>13</sub></font>,<font color="Maroon">c<sub>33</sub></font> ) &amp; not <!--HUMANRECFAILED-->( not  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>29</sub></font> &amp;  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>13</sub></font>,<font color="Maroon">c<sub>33</sub></font> ) &amp;  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>13</sub></font>,<font color="Maroon">c<sub>51</sub></font> ) ) iff  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K4">XOR2</a> <span class="p1">(<span class="default"><a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>29</sub></font>,<span class="p2">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>13</sub></font>,<font color="Maroon">c<sub>33</sub></font></span>)</span></span>)</span>,<span class="p1">(<span class="default"><a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>50</sub></font>,<span class="p2">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>13</sub></font>,<font color="Maroon">c<sub>51</sub></font></span>)</span></span>)</span> )
 
<b>by </b><i><a class="txt" href="gate_4.html#E1:4"><i><font color="Green">E1</font></i></a>, <a class="ref" href="gate_1.html#T8">GATE_1:8</a></i>;<br/>
<a NAME="E35:4"/><b>then </b>
( ( (  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>29</sub></font> &amp; (  not  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>13</sub></font> or  not  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>33</sub></font> ) &amp; (  not  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>13</sub></font> or  not  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>51</sub></font> ) ) or ( not  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>29</sub></font> &amp;  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>13</sub></font> &amp;  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>33</sub></font> &amp; (  not  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>13</sub></font> or  not  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>51</sub></font> ) ) or ( (  not  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>29</sub></font> or (  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>13</sub></font> &amp;  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>33</sub></font> ) ) &amp; (  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>29</sub></font> or  not  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>13</sub></font> or  not  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>33</sub></font> ) &amp;  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>13</sub></font> &amp;  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>51</sub></font> ) ) iff  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K4">XOR2</a> <span class="p1">(<span class="default"><a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>29</sub></font>,<span class="p2">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>13</sub></font>,<font color="Maroon">c<sub>33</sub></font></span>)</span></span>)</span>,<span class="p1">(<span class="default"><a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>50</sub></font>,<span class="p2">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>13</sub></font>,<font color="Maroon">c<sub>51</sub></font></span>)</span></span>)</span> )
 
<b>by </b><i><a class="ref" href="gate_1.html#T6">GATE_1:6</a></i>;<br/>
<a NAME="E36:4"/><b>then </b>
( ( (  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>29</sub></font> &amp; not  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>13</sub></font>,<font color="Maroon">c<sub>34</sub></font> ) or ( not  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>29</sub></font> &amp;  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>13</sub></font>,<font color="Maroon">c<sub>34</sub></font> ) ) iff  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K4">XOR2</a> <span class="p1">(<span class="default"><a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>29</sub></font>,<span class="p2">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>13</sub></font>,<font color="Maroon">c<sub>33</sub></font></span>)</span></span>)</span>,<span class="p1">(<span class="default"><a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>50</sub></font>,<span class="p2">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>13</sub></font>,<font color="Maroon">c<sub>51</sub></font></span>)</span></span>)</span> )
 
<b>by </b><i><a class="txt" href="gate_4.html#E2:4"><i><font color="Green">E2</font></i></a>, <a class="ref" href="gate_1.html#T6">GATE_1:6</a>, <a class="ref" href="gate_1.html#T8">GATE_1:8</a></i>;<br/>
<b>hence </b><a NAME="E37:4"/>
(  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>46</sub></font> iff  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K4">XOR2</a> <span class="p1">(<span class="default"><a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>29</sub></font>,<span class="p2">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>13</sub></font>,<font color="Maroon">c<sub>33</sub></font></span>)</span></span>)</span>,<span class="p1">(<span class="default"><a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>50</sub></font>,<span class="p2">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>13</sub></font>,<font color="Maroon">c<sub>51</sub></font></span>)</span></span>)</span> )
 <b>by </b><i><a class="txt" href="gate_4.html#E14:4"><i><font color="Green">E14</font></i></a>, <a class="ref" href="gate_1.html#T8">GATE_1:8</a></i>;<br/>

<a NAME="E38:4"/>
( ( (  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>28</sub></font>,<span class="p1">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>12</sub></font>,<font color="Maroon">c<sub>33</sub></font></span>)</span> &amp; not  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>50</sub></font>,<span class="p1">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>12</sub></font>,<font color="Maroon">c<sub>51</sub></font></span>)</span> ) or ( not  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>28</sub></font>,<span class="p1">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>12</sub></font>,<font color="Maroon">c<sub>33</sub></font></span>)</span> &amp;  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>50</sub></font>,<span class="p1">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>12</sub></font>,<font color="Maroon">c<sub>51</sub></font></span>)</span> ) ) iff  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K4">XOR2</a> <span class="p1">(<span class="default"><a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>28</sub></font>,<span class="p2">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>12</sub></font>,<font color="Maroon">c<sub>33</sub></font></span>)</span></span>)</span>,<span class="p1">(<span class="default"><a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>50</sub></font>,<span class="p2">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>12</sub></font>,<font color="Maroon">c<sub>51</sub></font></span>)</span></span>)</span> )
 
<b>by </b><i><a class="ref" href="gate_1.html#T8">GATE_1:8</a></i>;<br/>
<a NAME="E39:4"/><b>then </b>
( ( ( ( (  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>28</sub></font> &amp; not  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>12</sub></font>,<font color="Maroon">c<sub>33</sub></font> ) or ( not  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>28</sub></font> &amp;  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>12</sub></font>,<font color="Maroon">c<sub>33</sub></font> ) ) &amp; not  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>12</sub></font>,<font color="Maroon">c<sub>51</sub></font> ) or ( not <!--HUMANRECFAILED-->(  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>28</sub></font> &amp; not  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>12</sub></font>,<font color="Maroon">c<sub>33</sub></font> ) &amp; not <!--HUMANRECFAILED-->( not  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>28</sub></font> &amp;  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>12</sub></font>,<font color="Maroon">c<sub>33</sub></font> ) &amp;  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>12</sub></font>,<font color="Maroon">c<sub>51</sub></font> ) ) iff  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K4">XOR2</a> <span class="p1">(<span class="default"><a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>28</sub></font>,<span class="p2">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>12</sub></font>,<font color="Maroon">c<sub>33</sub></font></span>)</span></span>)</span>,<span class="p1">(<span class="default"><a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>50</sub></font>,<span class="p2">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>12</sub></font>,<font color="Maroon">c<sub>51</sub></font></span>)</span></span>)</span> )
 
<b>by </b><i><a class="txt" href="gate_4.html#E1:4"><i><font color="Green">E1</font></i></a>, <a class="ref" href="gate_1.html#T8">GATE_1:8</a></i>;<br/>
<a NAME="E40:4"/><b>then </b>
( ( (  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>28</sub></font> &amp; (  not  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>12</sub></font> or  not  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>33</sub></font> ) &amp; (  not  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>12</sub></font> or  not  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>51</sub></font> ) ) or ( not  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>28</sub></font> &amp;  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>12</sub></font> &amp;  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>33</sub></font> &amp; (  not  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>12</sub></font> or  not  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>51</sub></font> ) ) or ( (  not  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>28</sub></font> or (  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>12</sub></font> &amp;  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>33</sub></font> ) ) &amp; (  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>28</sub></font> or  not  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>12</sub></font> or  not  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>33</sub></font> ) &amp;  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>12</sub></font> &amp;  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>51</sub></font> ) ) iff  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K4">XOR2</a> <span class="p1">(<span class="default"><a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>28</sub></font>,<span class="p2">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>12</sub></font>,<font color="Maroon">c<sub>33</sub></font></span>)</span></span>)</span>,<span class="p1">(<span class="default"><a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>50</sub></font>,<span class="p2">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>12</sub></font>,<font color="Maroon">c<sub>51</sub></font></span>)</span></span>)</span> )
 
<b>by </b><i><a class="ref" href="gate_1.html#T6">GATE_1:6</a></i>;<br/>
<a NAME="E41:4"/><b>then </b>
( ( (  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>28</sub></font> &amp; not  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>12</sub></font>,<font color="Maroon">c<sub>34</sub></font> ) or ( not  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>28</sub></font> &amp;  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>12</sub></font>,<font color="Maroon">c<sub>34</sub></font> ) ) iff  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K4">XOR2</a> <span class="p1">(<span class="default"><a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>28</sub></font>,<span class="p2">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>12</sub></font>,<font color="Maroon">c<sub>33</sub></font></span>)</span></span>)</span>,<span class="p1">(<span class="default"><a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>50</sub></font>,<span class="p2">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>12</sub></font>,<font color="Maroon">c<sub>51</sub></font></span>)</span></span>)</span> )
 
<b>by </b><i><a class="txt" href="gate_4.html#E2:4"><i><font color="Green">E2</font></i></a>, <a class="ref" href="gate_1.html#T6">GATE_1:6</a>, <a class="ref" href="gate_1.html#T8">GATE_1:8</a></i>;<br/>
<b>hence </b><a NAME="E42:4"/>
(  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>45</sub></font> iff  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K4">XOR2</a> <span class="p1">(<span class="default"><a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>28</sub></font>,<span class="p2">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>12</sub></font>,<font color="Maroon">c<sub>33</sub></font></span>)</span></span>)</span>,<span class="p1">(<span class="default"><a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>50</sub></font>,<span class="p2">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>12</sub></font>,<font color="Maroon">c<sub>51</sub></font></span>)</span></span>)</span> )
 <b>by </b><i><a class="txt" href="gate_4.html#E13:4"><i><font color="Green">E13</font></i></a>, <a class="ref" href="gate_1.html#T8">GATE_1:8</a></i>;<br/>

<a NAME="E43:4"/>
( ( (  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>27</sub></font>,<span class="p1">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>11</sub></font>,<font color="Maroon">c<sub>33</sub></font></span>)</span> &amp; not  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>50</sub></font>,<span class="p1">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>11</sub></font>,<font color="Maroon">c<sub>51</sub></font></span>)</span> ) or ( not  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>27</sub></font>,<span class="p1">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>11</sub></font>,<font color="Maroon">c<sub>33</sub></font></span>)</span> &amp;  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>50</sub></font>,<span class="p1">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>11</sub></font>,<font color="Maroon">c<sub>51</sub></font></span>)</span> ) ) iff  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K4">XOR2</a> <span class="p1">(<span class="default"><a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>27</sub></font>,<span class="p2">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>11</sub></font>,<font color="Maroon">c<sub>33</sub></font></span>)</span></span>)</span>,<span class="p1">(<span class="default"><a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>50</sub></font>,<span class="p2">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>11</sub></font>,<font color="Maroon">c<sub>51</sub></font></span>)</span></span>)</span> )
 
<b>by </b><i><a class="ref" href="gate_1.html#T8">GATE_1:8</a></i>;<br/>
<a NAME="E44:4"/><b>then </b>
( ( ( ( (  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>27</sub></font> &amp; not  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>11</sub></font>,<font color="Maroon">c<sub>33</sub></font> ) or ( not  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>27</sub></font> &amp;  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>11</sub></font>,<font color="Maroon">c<sub>33</sub></font> ) ) &amp; not  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>11</sub></font>,<font color="Maroon">c<sub>51</sub></font> ) or ( not <!--HUMANRECFAILED-->(  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>27</sub></font> &amp; not  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>11</sub></font>,<font color="Maroon">c<sub>33</sub></font> ) &amp; not <!--HUMANRECFAILED-->( not  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>27</sub></font> &amp;  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>11</sub></font>,<font color="Maroon">c<sub>33</sub></font> ) &amp;  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>11</sub></font>,<font color="Maroon">c<sub>51</sub></font> ) ) iff  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K4">XOR2</a> <span class="p1">(<span class="default"><a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>27</sub></font>,<span class="p2">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>11</sub></font>,<font color="Maroon">c<sub>33</sub></font></span>)</span></span>)</span>,<span class="p1">(<span class="default"><a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>50</sub></font>,<span class="p2">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>11</sub></font>,<font color="Maroon">c<sub>51</sub></font></span>)</span></span>)</span> )
 
<b>by </b><i><a class="txt" href="gate_4.html#E1:4"><i><font color="Green">E1</font></i></a>, <a class="ref" href="gate_1.html#T8">GATE_1:8</a></i>;<br/>
<a NAME="E45:4"/><b>then </b>
( ( (  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>27</sub></font> &amp; (  not  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>11</sub></font> or  not  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>33</sub></font> ) &amp; (  not  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>11</sub></font> or  not  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>51</sub></font> ) ) or ( not  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>27</sub></font> &amp;  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>11</sub></font> &amp;  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>33</sub></font> &amp; (  not  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>11</sub></font> or  not  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>51</sub></font> ) ) or ( (  not  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>27</sub></font> or (  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>11</sub></font> &amp;  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>33</sub></font> ) ) &amp; (  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>27</sub></font> or  not  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>11</sub></font> or  not  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>33</sub></font> ) &amp;  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>11</sub></font> &amp;  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>51</sub></font> ) ) iff  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K4">XOR2</a> <span class="p1">(<span class="default"><a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>27</sub></font>,<span class="p2">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>11</sub></font>,<font color="Maroon">c<sub>33</sub></font></span>)</span></span>)</span>,<span class="p1">(<span class="default"><a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>50</sub></font>,<span class="p2">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>11</sub></font>,<font color="Maroon">c<sub>51</sub></font></span>)</span></span>)</span> )
 
<b>by </b><i><a class="ref" href="gate_1.html#T6">GATE_1:6</a></i>;<br/>
<a NAME="E46:4"/><b>then </b>
( ( (  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>27</sub></font> &amp; not  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>11</sub></font>,<font color="Maroon">c<sub>34</sub></font> ) or ( not  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>27</sub></font> &amp;  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>11</sub></font>,<font color="Maroon">c<sub>34</sub></font> ) ) iff  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K4">XOR2</a> <span class="p1">(<span class="default"><a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>27</sub></font>,<span class="p2">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>11</sub></font>,<font color="Maroon">c<sub>33</sub></font></span>)</span></span>)</span>,<span class="p1">(<span class="default"><a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>50</sub></font>,<span class="p2">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>11</sub></font>,<font color="Maroon">c<sub>51</sub></font></span>)</span></span>)</span> )
 
<b>by </b><i><a class="txt" href="gate_4.html#E2:4"><i><font color="Green">E2</font></i></a>, <a class="ref" href="gate_1.html#T6">GATE_1:6</a>, <a class="ref" href="gate_1.html#T8">GATE_1:8</a></i>;<br/>
<b>hence </b><a NAME="E47:4"/>
(  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>44</sub></font> iff  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K4">XOR2</a> <span class="p1">(<span class="default"><a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>27</sub></font>,<span class="p2">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>11</sub></font>,<font color="Maroon">c<sub>33</sub></font></span>)</span></span>)</span>,<span class="p1">(<span class="default"><a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>50</sub></font>,<span class="p2">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>11</sub></font>,<font color="Maroon">c<sub>51</sub></font></span>)</span></span>)</span> )
 <b>by </b><i><a class="txt" href="gate_4.html#E12:4"><i><font color="Green">E12</font></i></a>, <a class="ref" href="gate_1.html#T8">GATE_1:8</a></i>;<br/>

<a NAME="E48:4"/>
( ( (  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>26</sub></font>,<span class="p1">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>10</sub></font>,<font color="Maroon">c<sub>33</sub></font></span>)</span> &amp; not  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>50</sub></font>,<span class="p1">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>10</sub></font>,<font color="Maroon">c<sub>51</sub></font></span>)</span> ) or ( not  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>26</sub></font>,<span class="p1">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>10</sub></font>,<font color="Maroon">c<sub>33</sub></font></span>)</span> &amp;  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>50</sub></font>,<span class="p1">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>10</sub></font>,<font color="Maroon">c<sub>51</sub></font></span>)</span> ) ) iff  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K4">XOR2</a> <span class="p1">(<span class="default"><a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>26</sub></font>,<span class="p2">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>10</sub></font>,<font color="Maroon">c<sub>33</sub></font></span>)</span></span>)</span>,<span class="p1">(<span class="default"><a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>50</sub></font>,<span class="p2">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>10</sub></font>,<font color="Maroon">c<sub>51</sub></font></span>)</span></span>)</span> )
 
<b>by </b><i><a class="ref" href="gate_1.html#T8">GATE_1:8</a></i>;<br/>
<a NAME="E49:4"/><b>then </b>
( ( ( ( (  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>26</sub></font> &amp; not  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>10</sub></font>,<font color="Maroon">c<sub>33</sub></font> ) or ( not  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>26</sub></font> &amp;  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>10</sub></font>,<font color="Maroon">c<sub>33</sub></font> ) ) &amp; not  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>10</sub></font>,<font color="Maroon">c<sub>51</sub></font> ) or ( not <!--HUMANRECFAILED-->(  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>26</sub></font> &amp; not  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>10</sub></font>,<font color="Maroon">c<sub>33</sub></font> ) &amp; not <!--HUMANRECFAILED-->( not  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>26</sub></font> &amp;  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>10</sub></font>,<font color="Maroon">c<sub>33</sub></font> ) &amp;  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>10</sub></font>,<font color="Maroon">c<sub>51</sub></font> ) ) iff  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K4">XOR2</a> <span class="p1">(<span class="default"><a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>26</sub></font>,<span class="p2">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>10</sub></font>,<font color="Maroon">c<sub>33</sub></font></span>)</span></span>)</span>,<span class="p1">(<span class="default"><a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>50</sub></font>,<span class="p2">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>10</sub></font>,<font color="Maroon">c<sub>51</sub></font></span>)</span></span>)</span> )
 
<b>by </b><i><a class="txt" href="gate_4.html#E1:4"><i><font color="Green">E1</font></i></a>, <a class="ref" href="gate_1.html#T8">GATE_1:8</a></i>;<br/>
<a NAME="E50:4"/><b>then </b>
( ( (  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>26</sub></font> &amp; (  not  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>10</sub></font> or  not  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>33</sub></font> ) &amp; (  not  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>10</sub></font> or  not  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>51</sub></font> ) ) or ( not  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>26</sub></font> &amp;  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>10</sub></font> &amp;  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>33</sub></font> &amp; (  not  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>10</sub></font> or  not  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>51</sub></font> ) ) or ( (  not  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>26</sub></font> or (  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>10</sub></font> &amp;  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>33</sub></font> ) ) &amp; (  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>26</sub></font> or  not  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>10</sub></font> or  not  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>33</sub></font> ) &amp;  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>10</sub></font> &amp;  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>51</sub></font> ) ) iff  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K4">XOR2</a> <span class="p1">(<span class="default"><a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>26</sub></font>,<span class="p2">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>10</sub></font>,<font color="Maroon">c<sub>33</sub></font></span>)</span></span>)</span>,<span class="p1">(<span class="default"><a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>50</sub></font>,<span class="p2">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>10</sub></font>,<font color="Maroon">c<sub>51</sub></font></span>)</span></span>)</span> )
 
<b>by </b><i><a class="ref" href="gate_1.html#T6">GATE_1:6</a></i>;<br/>
<a NAME="E51:4"/><b>then </b>
( ( (  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>26</sub></font> &amp; not  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>10</sub></font>,<font color="Maroon">c<sub>34</sub></font> ) or ( not  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>26</sub></font> &amp;  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>10</sub></font>,<font color="Maroon">c<sub>34</sub></font> ) ) iff  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K4">XOR2</a> <span class="p1">(<span class="default"><a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>26</sub></font>,<span class="p2">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>10</sub></font>,<font color="Maroon">c<sub>33</sub></font></span>)</span></span>)</span>,<span class="p1">(<span class="default"><a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>50</sub></font>,<span class="p2">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>10</sub></font>,<font color="Maroon">c<sub>51</sub></font></span>)</span></span>)</span> )
 
<b>by </b><i><a class="txt" href="gate_4.html#E2:4"><i><font color="Green">E2</font></i></a>, <a class="ref" href="gate_1.html#T6">GATE_1:6</a>, <a class="ref" href="gate_1.html#T8">GATE_1:8</a></i>;<br/>
<b>hence </b><a NAME="E52:4"/>
(  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>43</sub></font> iff  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K4">XOR2</a> <span class="p1">(<span class="default"><a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>26</sub></font>,<span class="p2">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>10</sub></font>,<font color="Maroon">c<sub>33</sub></font></span>)</span></span>)</span>,<span class="p1">(<span class="default"><a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>50</sub></font>,<span class="p2">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>10</sub></font>,<font color="Maroon">c<sub>51</sub></font></span>)</span></span>)</span> )
 <b>by </b><i><a class="txt" href="gate_4.html#E11:4"><i><font color="Green">E11</font></i></a>, <a class="ref" href="gate_1.html#T8">GATE_1:8</a></i>;<br/>

<a NAME="E53:4"/>
( ( (  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>25</sub></font>,<span class="p1">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>9</sub></font>,<font color="Maroon">c<sub>33</sub></font></span>)</span> &amp; not  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>50</sub></font>,<span class="p1">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>9</sub></font>,<font color="Maroon">c<sub>51</sub></font></span>)</span> ) or ( not  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>25</sub></font>,<span class="p1">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>9</sub></font>,<font color="Maroon">c<sub>33</sub></font></span>)</span> &amp;  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>50</sub></font>,<span class="p1">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>9</sub></font>,<font color="Maroon">c<sub>51</sub></font></span>)</span> ) ) iff  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K4">XOR2</a> <span class="p1">(<span class="default"><a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>25</sub></font>,<span class="p2">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>9</sub></font>,<font color="Maroon">c<sub>33</sub></font></span>)</span></span>)</span>,<span class="p1">(<span class="default"><a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>50</sub></font>,<span class="p2">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>9</sub></font>,<font color="Maroon">c<sub>51</sub></font></span>)</span></span>)</span> )
 
<b>by </b><i><a class="ref" href="gate_1.html#T8">GATE_1:8</a></i>;<br/>
<a NAME="E54:4"/><b>then </b>
( ( ( ( (  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>25</sub></font> &amp; not  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>9</sub></font>,<font color="Maroon">c<sub>33</sub></font> ) or ( not  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>25</sub></font> &amp;  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>9</sub></font>,<font color="Maroon">c<sub>33</sub></font> ) ) &amp; not  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>9</sub></font>,<font color="Maroon">c<sub>51</sub></font> ) or ( not <!--HUMANRECFAILED-->(  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>25</sub></font> &amp; not  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>9</sub></font>,<font color="Maroon">c<sub>33</sub></font> ) &amp; not <!--HUMANRECFAILED-->( not  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>25</sub></font> &amp;  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>9</sub></font>,<font color="Maroon">c<sub>33</sub></font> ) &amp;  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>9</sub></font>,<font color="Maroon">c<sub>51</sub></font> ) ) iff  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K4">XOR2</a> <span class="p1">(<span class="default"><a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>25</sub></font>,<span class="p2">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>9</sub></font>,<font color="Maroon">c<sub>33</sub></font></span>)</span></span>)</span>,<span class="p1">(<span class="default"><a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>50</sub></font>,<span class="p2">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>9</sub></font>,<font color="Maroon">c<sub>51</sub></font></span>)</span></span>)</span> )
 
<b>by </b><i><a class="txt" href="gate_4.html#E1:4"><i><font color="Green">E1</font></i></a>, <a class="ref" href="gate_1.html#T8">GATE_1:8</a></i>;<br/>
<a NAME="E55:4"/><b>then </b>
( ( (  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>25</sub></font> &amp; (  not  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>9</sub></font> or  not  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>33</sub></font> ) &amp; (  not  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>9</sub></font> or  not  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>51</sub></font> ) ) or ( not  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>25</sub></font> &amp;  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>9</sub></font> &amp;  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>33</sub></font> &amp; (  not  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>9</sub></font> or  not  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>51</sub></font> ) ) or ( (  not  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>25</sub></font> or (  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>9</sub></font> &amp;  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>33</sub></font> ) ) &amp; (  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>25</sub></font> or  not  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>9</sub></font> or  not  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>33</sub></font> ) &amp;  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>9</sub></font> &amp;  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>51</sub></font> ) ) iff  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K4">XOR2</a> <span class="p1">(<span class="default"><a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>25</sub></font>,<span class="p2">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>9</sub></font>,<font color="Maroon">c<sub>33</sub></font></span>)</span></span>)</span>,<span class="p1">(<span class="default"><a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>50</sub></font>,<span class="p2">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>9</sub></font>,<font color="Maroon">c<sub>51</sub></font></span>)</span></span>)</span> )
 
<b>by </b><i><a class="ref" href="gate_1.html#T6">GATE_1:6</a></i>;<br/>
<a NAME="E56:4"/><b>then </b>
( ( (  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>25</sub></font> &amp; not  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>9</sub></font>,<font color="Maroon">c<sub>34</sub></font> ) or ( not  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>25</sub></font> &amp;  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>9</sub></font>,<font color="Maroon">c<sub>34</sub></font> ) ) iff  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K4">XOR2</a> <span class="p1">(<span class="default"><a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>25</sub></font>,<span class="p2">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>9</sub></font>,<font color="Maroon">c<sub>33</sub></font></span>)</span></span>)</span>,<span class="p1">(<span class="default"><a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>50</sub></font>,<span class="p2">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>9</sub></font>,<font color="Maroon">c<sub>51</sub></font></span>)</span></span>)</span> )
 
<b>by </b><i><a class="txt" href="gate_4.html#E2:4"><i><font color="Green">E2</font></i></a>, <a class="ref" href="gate_1.html#T6">GATE_1:6</a>, <a class="ref" href="gate_1.html#T8">GATE_1:8</a></i>;<br/>
<b>hence </b><a NAME="E57:4"/>
(  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>42</sub></font> iff  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K4">XOR2</a> <span class="p1">(<span class="default"><a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>25</sub></font>,<span class="p2">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>9</sub></font>,<font color="Maroon">c<sub>33</sub></font></span>)</span></span>)</span>,<span class="p1">(<span class="default"><a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>50</sub></font>,<span class="p2">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>9</sub></font>,<font color="Maroon">c<sub>51</sub></font></span>)</span></span>)</span> )
 <b>by </b><i><a class="txt" href="gate_4.html#E10:4"><i><font color="Green">E10</font></i></a>, <a class="ref" href="gate_1.html#T8">GATE_1:8</a></i>;<br/>

<a NAME="E58:4"/>
( ( (  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>24</sub></font>,<span class="p1">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>8</sub></font>,<font color="Maroon">c<sub>33</sub></font></span>)</span> &amp; not  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>50</sub></font>,<span class="p1">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>8</sub></font>,<font color="Maroon">c<sub>51</sub></font></span>)</span> ) or ( not  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>24</sub></font>,<span class="p1">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>8</sub></font>,<font color="Maroon">c<sub>33</sub></font></span>)</span> &amp;  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>50</sub></font>,<span class="p1">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>8</sub></font>,<font color="Maroon">c<sub>51</sub></font></span>)</span> ) ) iff  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K4">XOR2</a> <span class="p1">(<span class="default"><a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>24</sub></font>,<span class="p2">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>8</sub></font>,<font color="Maroon">c<sub>33</sub></font></span>)</span></span>)</span>,<span class="p1">(<span class="default"><a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>50</sub></font>,<span class="p2">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>8</sub></font>,<font color="Maroon">c<sub>51</sub></font></span>)</span></span>)</span> )
 
<b>by </b><i><a class="ref" href="gate_1.html#T8">GATE_1:8</a></i>;<br/>
<a NAME="E59:4"/><b>then </b>
( ( ( ( (  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>24</sub></font> &amp; not  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>8</sub></font>,<font color="Maroon">c<sub>33</sub></font> ) or ( not  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>24</sub></font> &amp;  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>8</sub></font>,<font color="Maroon">c<sub>33</sub></font> ) ) &amp; not  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>8</sub></font>,<font color="Maroon">c<sub>51</sub></font> ) or ( not <!--HUMANRECFAILED-->(  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>24</sub></font> &amp; not  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>8</sub></font>,<font color="Maroon">c<sub>33</sub></font> ) &amp; not <!--HUMANRECFAILED-->( not  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>24</sub></font> &amp;  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>8</sub></font>,<font color="Maroon">c<sub>33</sub></font> ) &amp;  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>8</sub></font>,<font color="Maroon">c<sub>51</sub></font> ) ) iff  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K4">XOR2</a> <span class="p1">(<span class="default"><a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>24</sub></font>,<span class="p2">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>8</sub></font>,<font color="Maroon">c<sub>33</sub></font></span>)</span></span>)</span>,<span class="p1">(<span class="default"><a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>50</sub></font>,<span class="p2">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>8</sub></font>,<font color="Maroon">c<sub>51</sub></font></span>)</span></span>)</span> )
 
<b>by </b><i><a class="txt" href="gate_4.html#E1:4"><i><font color="Green">E1</font></i></a>, <a class="ref" href="gate_1.html#T8">GATE_1:8</a></i>;<br/>
<a NAME="E60:4"/><b>then </b>
( ( (  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>24</sub></font> &amp; (  not  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>8</sub></font> or  not  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>33</sub></font> ) &amp; (  not  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>8</sub></font> or  not  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>51</sub></font> ) ) or ( not  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>24</sub></font> &amp;  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>8</sub></font> &amp;  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>33</sub></font> &amp; (  not  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>8</sub></font> or  not  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>51</sub></font> ) ) or ( (  not  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>24</sub></font> or (  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>8</sub></font> &amp;  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>33</sub></font> ) ) &amp; (  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>24</sub></font> or  not  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>8</sub></font> or  not  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>33</sub></font> ) &amp;  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>8</sub></font> &amp;  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>51</sub></font> ) ) iff  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K4">XOR2</a> <span class="p1">(<span class="default"><a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>24</sub></font>,<span class="p2">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>8</sub></font>,<font color="Maroon">c<sub>33</sub></font></span>)</span></span>)</span>,<span class="p1">(<span class="default"><a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>50</sub></font>,<span class="p2">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>8</sub></font>,<font color="Maroon">c<sub>51</sub></font></span>)</span></span>)</span> )
 
<b>by </b><i><a class="ref" href="gate_1.html#T6">GATE_1:6</a></i>;<br/>
<a NAME="E61:4"/><b>then </b>
( ( (  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>24</sub></font> &amp; not  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>8</sub></font>,<font color="Maroon">c<sub>34</sub></font> ) or ( not  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>24</sub></font> &amp;  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>8</sub></font>,<font color="Maroon">c<sub>34</sub></font> ) ) iff  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K4">XOR2</a> <span class="p1">(<span class="default"><a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>24</sub></font>,<span class="p2">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>8</sub></font>,<font color="Maroon">c<sub>33</sub></font></span>)</span></span>)</span>,<span class="p1">(<span class="default"><a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>50</sub></font>,<span class="p2">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>8</sub></font>,<font color="Maroon">c<sub>51</sub></font></span>)</span></span>)</span> )
 
<b>by </b><i><a class="txt" href="gate_4.html#E2:4"><i><font color="Green">E2</font></i></a>, <a class="ref" href="gate_1.html#T6">GATE_1:6</a>, <a class="ref" href="gate_1.html#T8">GATE_1:8</a></i>;<br/>
<b>hence </b><a NAME="E62:4"/>
(  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>41</sub></font> iff  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K4">XOR2</a> <span class="p1">(<span class="default"><a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>24</sub></font>,<span class="p2">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>8</sub></font>,<font color="Maroon">c<sub>33</sub></font></span>)</span></span>)</span>,<span class="p1">(<span class="default"><a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>50</sub></font>,<span class="p2">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>8</sub></font>,<font color="Maroon">c<sub>51</sub></font></span>)</span></span>)</span> )
 <b>by </b><i><a class="txt" href="gate_4.html#E9:4"><i><font color="Green">E9</font></i></a>, <a class="ref" href="gate_1.html#T8">GATE_1:8</a></i>;<br/>

<a NAME="E63:4"/>
( ( (  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>23</sub></font>,<span class="p1">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>7</sub></font>,<font color="Maroon">c<sub>33</sub></font></span>)</span> &amp; not  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>50</sub></font>,<span class="p1">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>7</sub></font>,<font color="Maroon">c<sub>51</sub></font></span>)</span> ) or ( not  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>23</sub></font>,<span class="p1">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>7</sub></font>,<font color="Maroon">c<sub>33</sub></font></span>)</span> &amp;  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>50</sub></font>,<span class="p1">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>7</sub></font>,<font color="Maroon">c<sub>51</sub></font></span>)</span> ) ) iff  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K4">XOR2</a> <span class="p1">(<span class="default"><a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>23</sub></font>,<span class="p2">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>7</sub></font>,<font color="Maroon">c<sub>33</sub></font></span>)</span></span>)</span>,<span class="p1">(<span class="default"><a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>50</sub></font>,<span class="p2">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>7</sub></font>,<font color="Maroon">c<sub>51</sub></font></span>)</span></span>)</span> )
 
<b>by </b><i><a class="ref" href="gate_1.html#T8">GATE_1:8</a></i>;<br/>
<a NAME="E64:4"/><b>then </b>
( ( (  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>23</sub></font> &amp; not  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>7</sub></font>,<font color="Maroon">c<sub>33</sub></font> &amp; not  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>7</sub></font>,<font color="Maroon">c<sub>51</sub></font> ) or ( not  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>23</sub></font> &amp;  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>7</sub></font>,<font color="Maroon">c<sub>33</sub></font> &amp; not  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>7</sub></font>,<font color="Maroon">c<sub>51</sub></font> ) or ( (  not  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>23</sub></font> or  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>7</sub></font>,<font color="Maroon">c<sub>33</sub></font> ) &amp; (  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>23</sub></font> or  not  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>7</sub></font>,<font color="Maroon">c<sub>33</sub></font> ) &amp;  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>7</sub></font>,<font color="Maroon">c<sub>51</sub></font> ) ) iff  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K4">XOR2</a> <span class="p1">(<span class="default"><a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>23</sub></font>,<span class="p2">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>7</sub></font>,<font color="Maroon">c<sub>33</sub></font></span>)</span></span>)</span>,<span class="p1">(<span class="default"><a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>50</sub></font>,<span class="p2">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>7</sub></font>,<font color="Maroon">c<sub>51</sub></font></span>)</span></span>)</span> )
 
<b>by </b><i><a class="txt" href="gate_4.html#E1:4"><i><font color="Green">E1</font></i></a>, <a class="ref" href="gate_1.html#T8">GATE_1:8</a></i>;<br/>
<a NAME="E65:4"/><b>then </b>
( ( (  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>23</sub></font> &amp; (  not  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>7</sub></font> or  not  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>33</sub></font> ) &amp; (  not  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>7</sub></font> or  not  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>51</sub></font> ) ) or ( not  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>23</sub></font> &amp;  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>7</sub></font> &amp;  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>33</sub></font> &amp; (  not  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>7</sub></font> or  not  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>51</sub></font> ) ) or ( (  not  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>23</sub></font> or (  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>7</sub></font> &amp;  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>33</sub></font> ) ) &amp; (  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>23</sub></font> or  not  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>7</sub></font> or  not  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>33</sub></font> ) &amp;  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>7</sub></font> &amp;  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>51</sub></font> ) ) iff  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K4">XOR2</a> <span class="p1">(<span class="default"><a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>23</sub></font>,<span class="p2">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>7</sub></font>,<font color="Maroon">c<sub>33</sub></font></span>)</span></span>)</span>,<span class="p1">(<span class="default"><a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>50</sub></font>,<span class="p2">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>7</sub></font>,<font color="Maroon">c<sub>51</sub></font></span>)</span></span>)</span> )
 
<b>by </b><i><a class="ref" href="gate_1.html#T6">GATE_1:6</a></i>;<br/>
<a NAME="E66:4"/><b>then </b>
( ( (  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>23</sub></font> &amp; not  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>7</sub></font>,<font color="Maroon">c<sub>34</sub></font> ) or ( not  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>23</sub></font> &amp;  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>7</sub></font>,<font color="Maroon">c<sub>34</sub></font> ) ) iff  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K4">XOR2</a> <span class="p1">(<span class="default"><a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>23</sub></font>,<span class="p2">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>7</sub></font>,<font color="Maroon">c<sub>33</sub></font></span>)</span></span>)</span>,<span class="p1">(<span class="default"><a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>50</sub></font>,<span class="p2">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>7</sub></font>,<font color="Maroon">c<sub>51</sub></font></span>)</span></span>)</span> )
 
<b>by </b><i><a class="txt" href="gate_4.html#E2:4"><i><font color="Green">E2</font></i></a>, <a class="ref" href="gate_1.html#T6">GATE_1:6</a>, <a class="ref" href="gate_1.html#T8">GATE_1:8</a></i>;<br/>
<b>hence </b><a NAME="E67:4"/>
(  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>40</sub></font> iff  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K4">XOR2</a> <span class="p1">(<span class="default"><a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>23</sub></font>,<span class="p2">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>7</sub></font>,<font color="Maroon">c<sub>33</sub></font></span>)</span></span>)</span>,<span class="p1">(<span class="default"><a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>50</sub></font>,<span class="p2">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>7</sub></font>,<font color="Maroon">c<sub>51</sub></font></span>)</span></span>)</span> )
 <b>by </b><i><a class="txt" href="gate_4.html#E8:4"><i><font color="Green">E8</font></i></a>, <a class="ref" href="gate_1.html#T8">GATE_1:8</a></i>;<br/>

<a NAME="E68:4"/>
( ( (  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>22</sub></font>,<span class="p1">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>6</sub></font>,<font color="Maroon">c<sub>33</sub></font></span>)</span> &amp; not  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>50</sub></font>,<span class="p1">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>6</sub></font>,<font color="Maroon">c<sub>51</sub></font></span>)</span> ) or ( not  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>22</sub></font>,<span class="p1">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>6</sub></font>,<font color="Maroon">c<sub>33</sub></font></span>)</span> &amp;  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>50</sub></font>,<span class="p1">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>6</sub></font>,<font color="Maroon">c<sub>51</sub></font></span>)</span> ) ) iff  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K4">XOR2</a> <span class="p1">(<span class="default"><a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>22</sub></font>,<span class="p2">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>6</sub></font>,<font color="Maroon">c<sub>33</sub></font></span>)</span></span>)</span>,<span class="p1">(<span class="default"><a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>50</sub></font>,<span class="p2">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>6</sub></font>,<font color="Maroon">c<sub>51</sub></font></span>)</span></span>)</span> )
 
<b>by </b><i><a class="ref" href="gate_1.html#T8">GATE_1:8</a></i>;<br/>
<a NAME="E69:4"/><b>then </b>
( ( ( ( (  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>22</sub></font> &amp; not  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>6</sub></font>,<font color="Maroon">c<sub>33</sub></font> ) or ( not  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>22</sub></font> &amp;  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>6</sub></font>,<font color="Maroon">c<sub>33</sub></font> ) ) &amp; not  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>6</sub></font>,<font color="Maroon">c<sub>51</sub></font> ) or ( not <!--HUMANRECFAILED-->(  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>22</sub></font> &amp; not  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>6</sub></font>,<font color="Maroon">c<sub>33</sub></font> ) &amp; not <!--HUMANRECFAILED-->( not  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>22</sub></font> &amp;  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>6</sub></font>,<font color="Maroon">c<sub>33</sub></font> ) &amp;  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>6</sub></font>,<font color="Maroon">c<sub>51</sub></font> ) ) iff  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K4">XOR2</a> <span class="p1">(<span class="default"><a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>22</sub></font>,<span class="p2">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>6</sub></font>,<font color="Maroon">c<sub>33</sub></font></span>)</span></span>)</span>,<span class="p1">(<span class="default"><a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>50</sub></font>,<span class="p2">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>6</sub></font>,<font color="Maroon">c<sub>51</sub></font></span>)</span></span>)</span> )
 
<b>by </b><i><a class="txt" href="gate_4.html#E1:4"><i><font color="Green">E1</font></i></a>, <a class="ref" href="gate_1.html#T8">GATE_1:8</a></i>;<br/>
<a NAME="E70:4"/><b>then </b>
( ( (  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>22</sub></font> &amp; (  not  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>6</sub></font> or  not  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>33</sub></font> ) &amp; (  not  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>6</sub></font> or  not  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>51</sub></font> ) ) or ( not  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>22</sub></font> &amp;  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>6</sub></font> &amp;  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>33</sub></font> &amp; (  not  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>6</sub></font> or  not  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>51</sub></font> ) ) or ( (  not  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>22</sub></font> or (  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>6</sub></font> &amp;  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>33</sub></font> ) ) &amp; (  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>22</sub></font> or  not  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>6</sub></font> or  not  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>33</sub></font> ) &amp;  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>6</sub></font> &amp;  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>51</sub></font> ) ) iff  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K4">XOR2</a> <span class="p1">(<span class="default"><a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>22</sub></font>,<span class="p2">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>6</sub></font>,<font color="Maroon">c<sub>33</sub></font></span>)</span></span>)</span>,<span class="p1">(<span class="default"><a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>50</sub></font>,<span class="p2">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>6</sub></font>,<font color="Maroon">c<sub>51</sub></font></span>)</span></span>)</span> )
 
<b>by </b><i><a class="ref" href="gate_1.html#T6">GATE_1:6</a></i>;<br/>
<a NAME="E71:4"/><b>then </b>
( ( (  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>22</sub></font> &amp; not  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>6</sub></font>,<font color="Maroon">c<sub>34</sub></font> ) or ( not  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>22</sub></font> &amp;  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>6</sub></font>,<font color="Maroon">c<sub>34</sub></font> ) ) iff  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K4">XOR2</a> <span class="p1">(<span class="default"><a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>22</sub></font>,<span class="p2">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>6</sub></font>,<font color="Maroon">c<sub>33</sub></font></span>)</span></span>)</span>,<span class="p1">(<span class="default"><a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>50</sub></font>,<span class="p2">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>6</sub></font>,<font color="Maroon">c<sub>51</sub></font></span>)</span></span>)</span> )
 
<b>by </b><i><a class="txt" href="gate_4.html#E2:4"><i><font color="Green">E2</font></i></a>, <a class="ref" href="gate_1.html#T6">GATE_1:6</a>, <a class="ref" href="gate_1.html#T8">GATE_1:8</a></i>;<br/>
<b>hence </b><a NAME="E72:4"/>
(  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>39</sub></font> iff  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K4">XOR2</a> <span class="p1">(<span class="default"><a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>22</sub></font>,<span class="p2">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>6</sub></font>,<font color="Maroon">c<sub>33</sub></font></span>)</span></span>)</span>,<span class="p1">(<span class="default"><a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>50</sub></font>,<span class="p2">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>6</sub></font>,<font color="Maroon">c<sub>51</sub></font></span>)</span></span>)</span> )
 <b>by </b><i><a class="txt" href="gate_4.html#E7:4"><i><font color="Green">E7</font></i></a>, <a class="ref" href="gate_1.html#T8">GATE_1:8</a></i>;<br/>

<a NAME="E73:4"/>
( ( (  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>21</sub></font>,<span class="p1">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>5</sub></font>,<font color="Maroon">c<sub>33</sub></font></span>)</span> &amp; not  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>50</sub></font>,<span class="p1">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>5</sub></font>,<font color="Maroon">c<sub>51</sub></font></span>)</span> ) or ( not  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>21</sub></font>,<span class="p1">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>5</sub></font>,<font color="Maroon">c<sub>33</sub></font></span>)</span> &amp;  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>50</sub></font>,<span class="p1">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>5</sub></font>,<font color="Maroon">c<sub>51</sub></font></span>)</span> ) ) iff  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K4">XOR2</a> <span class="p1">(<span class="default"><a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>21</sub></font>,<span class="p2">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>5</sub></font>,<font color="Maroon">c<sub>33</sub></font></span>)</span></span>)</span>,<span class="p1">(<span class="default"><a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>50</sub></font>,<span class="p2">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>5</sub></font>,<font color="Maroon">c<sub>51</sub></font></span>)</span></span>)</span> )
 
<b>by </b><i><a class="ref" href="gate_1.html#T8">GATE_1:8</a></i>;<br/>
<a NAME="E74:4"/><b>then </b>
( ( (  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>21</sub></font> &amp; not  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>5</sub></font>,<font color="Maroon">c<sub>33</sub></font> &amp; not  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>5</sub></font>,<font color="Maroon">c<sub>51</sub></font> ) or ( not  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>21</sub></font> &amp;  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>5</sub></font>,<font color="Maroon">c<sub>33</sub></font> &amp; not  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>5</sub></font>,<font color="Maroon">c<sub>51</sub></font> ) or ( (  not  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>21</sub></font> or  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>5</sub></font>,<font color="Maroon">c<sub>33</sub></font> ) &amp; (  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>21</sub></font> or  not  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>5</sub></font>,<font color="Maroon">c<sub>33</sub></font> ) &amp;  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>5</sub></font>,<font color="Maroon">c<sub>51</sub></font> ) ) iff  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K4">XOR2</a> <span class="p1">(<span class="default"><a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>21</sub></font>,<span class="p2">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>5</sub></font>,<font color="Maroon">c<sub>33</sub></font></span>)</span></span>)</span>,<span class="p1">(<span class="default"><a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>50</sub></font>,<span class="p2">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>5</sub></font>,<font color="Maroon">c<sub>51</sub></font></span>)</span></span>)</span> )
 
<b>by </b><i><a class="txt" href="gate_4.html#E1:4"><i><font color="Green">E1</font></i></a>, <a class="ref" href="gate_1.html#T8">GATE_1:8</a></i>;<br/>
<a NAME="E75:4"/><b>then </b>
( ( (  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>21</sub></font> &amp; (  not  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>5</sub></font> or  not  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>33</sub></font> ) &amp; (  not  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>5</sub></font> or  not  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>51</sub></font> ) ) or ( not  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>21</sub></font> &amp;  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>5</sub></font> &amp;  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>33</sub></font> &amp; (  not  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>5</sub></font> or  not  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>51</sub></font> ) ) or ( (  not  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>21</sub></font> or (  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>5</sub></font> &amp;  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>33</sub></font> ) ) &amp; (  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>21</sub></font> or  not  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>5</sub></font> or  not  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>33</sub></font> ) &amp;  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>5</sub></font> &amp;  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>51</sub></font> ) ) iff  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K4">XOR2</a> <span class="p1">(<span class="default"><a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>21</sub></font>,<span class="p2">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>5</sub></font>,<font color="Maroon">c<sub>33</sub></font></span>)</span></span>)</span>,<span class="p1">(<span class="default"><a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>50</sub></font>,<span class="p2">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>5</sub></font>,<font color="Maroon">c<sub>51</sub></font></span>)</span></span>)</span> )
 
<b>by </b><i><a class="ref" href="gate_1.html#T6">GATE_1:6</a></i>;<br/>
<a NAME="E76:4"/><b>then </b>
( ( (  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>21</sub></font> &amp; not  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>5</sub></font>,<font color="Maroon">c<sub>34</sub></font> ) or ( not  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>21</sub></font> &amp;  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>5</sub></font>,<font color="Maroon">c<sub>34</sub></font> ) ) iff  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K4">XOR2</a> <span class="p1">(<span class="default"><a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>21</sub></font>,<span class="p2">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>5</sub></font>,<font color="Maroon">c<sub>33</sub></font></span>)</span></span>)</span>,<span class="p1">(<span class="default"><a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>50</sub></font>,<span class="p2">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>5</sub></font>,<font color="Maroon">c<sub>51</sub></font></span>)</span></span>)</span> )
 
<b>by </b><i><a class="txt" href="gate_4.html#E2:4"><i><font color="Green">E2</font></i></a>, <a class="ref" href="gate_1.html#T6">GATE_1:6</a>, <a class="ref" href="gate_1.html#T8">GATE_1:8</a></i>;<br/>
<b>hence </b><a NAME="E77:4"/>
(  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>38</sub></font> iff  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K4">XOR2</a> <span class="p1">(<span class="default"><a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>21</sub></font>,<span class="p2">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>5</sub></font>,<font color="Maroon">c<sub>33</sub></font></span>)</span></span>)</span>,<span class="p1">(<span class="default"><a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>50</sub></font>,<span class="p2">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>5</sub></font>,<font color="Maroon">c<sub>51</sub></font></span>)</span></span>)</span> )
 <b>by </b><i><a class="txt" href="gate_4.html#E6:4"><i><font color="Green">E6</font></i></a>, <a class="ref" href="gate_1.html#T8">GATE_1:8</a></i>;<br/>

<a NAME="E78:4"/>
( ( (  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>20</sub></font>,<span class="p1">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>4</sub></font>,<font color="Maroon">c<sub>33</sub></font></span>)</span> &amp; not  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>50</sub></font>,<span class="p1">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>4</sub></font>,<font color="Maroon">c<sub>51</sub></font></span>)</span> ) or ( not  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>20</sub></font>,<span class="p1">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>4</sub></font>,<font color="Maroon">c<sub>33</sub></font></span>)</span> &amp;  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>50</sub></font>,<span class="p1">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>4</sub></font>,<font color="Maroon">c<sub>51</sub></font></span>)</span> ) ) iff  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K4">XOR2</a> <span class="p1">(<span class="default"><a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>20</sub></font>,<span class="p2">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>4</sub></font>,<font color="Maroon">c<sub>33</sub></font></span>)</span></span>)</span>,<span class="p1">(<span class="default"><a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>50</sub></font>,<span class="p2">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>4</sub></font>,<font color="Maroon">c<sub>51</sub></font></span>)</span></span>)</span> )
 
<b>by </b><i><a class="ref" href="gate_1.html#T8">GATE_1:8</a></i>;<br/>
<a NAME="E79:4"/><b>then </b>
( ( (  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>20</sub></font> &amp; not  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>4</sub></font>,<font color="Maroon">c<sub>33</sub></font> &amp; not  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>4</sub></font>,<font color="Maroon">c<sub>51</sub></font> ) or ( not  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>20</sub></font> &amp;  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>4</sub></font>,<font color="Maroon">c<sub>33</sub></font> &amp; not  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>4</sub></font>,<font color="Maroon">c<sub>51</sub></font> ) or ( (  not  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>20</sub></font> or  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>4</sub></font>,<font color="Maroon">c<sub>33</sub></font> ) &amp; (  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>20</sub></font> or  not  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>4</sub></font>,<font color="Maroon">c<sub>33</sub></font> ) &amp;  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>4</sub></font>,<font color="Maroon">c<sub>51</sub></font> ) ) iff  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K4">XOR2</a> <span class="p1">(<span class="default"><a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>20</sub></font>,<span class="p2">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>4</sub></font>,<font color="Maroon">c<sub>33</sub></font></span>)</span></span>)</span>,<span class="p1">(<span class="default"><a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>50</sub></font>,<span class="p2">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>4</sub></font>,<font color="Maroon">c<sub>51</sub></font></span>)</span></span>)</span> )
 
<b>by </b><i><a class="txt" href="gate_4.html#E1:4"><i><font color="Green">E1</font></i></a>, <a class="ref" href="gate_1.html#T8">GATE_1:8</a></i>;<br/>
<a NAME="E80:4"/><b>then </b>
( ( (  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>20</sub></font> &amp; (  not  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>4</sub></font> or  not  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>33</sub></font> ) &amp; (  not  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>4</sub></font> or  not  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>51</sub></font> ) ) or ( not  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>20</sub></font> &amp;  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>4</sub></font> &amp;  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>33</sub></font> &amp; (  not  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>4</sub></font> or  not  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>51</sub></font> ) ) or ( (  not  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>20</sub></font> or (  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>4</sub></font> &amp;  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>33</sub></font> ) ) &amp; (  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>20</sub></font> or  not  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>4</sub></font> or  not  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>33</sub></font> ) &amp;  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>4</sub></font> &amp;  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>51</sub></font> ) ) iff  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K4">XOR2</a> <span class="p1">(<span class="default"><a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>20</sub></font>,<span class="p2">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>4</sub></font>,<font color="Maroon">c<sub>33</sub></font></span>)</span></span>)</span>,<span class="p1">(<span class="default"><a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>50</sub></font>,<span class="p2">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>4</sub></font>,<font color="Maroon">c<sub>51</sub></font></span>)</span></span>)</span> )
 
<b>by </b><i><a class="ref" href="gate_1.html#T6">GATE_1:6</a></i>;<br/>
<a NAME="E81:4"/><b>then </b>
( ( (  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>20</sub></font> &amp; not  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>4</sub></font>,<font color="Maroon">c<sub>34</sub></font> ) or ( not  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>20</sub></font> &amp;  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>4</sub></font>,<font color="Maroon">c<sub>34</sub></font> ) ) iff  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K4">XOR2</a> <span class="p1">(<span class="default"><a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>20</sub></font>,<span class="p2">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>4</sub></font>,<font color="Maroon">c<sub>33</sub></font></span>)</span></span>)</span>,<span class="p1">(<span class="default"><a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>50</sub></font>,<span class="p2">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>4</sub></font>,<font color="Maroon">c<sub>51</sub></font></span>)</span></span>)</span> )
 
<b>by </b><i><a class="txt" href="gate_4.html#E2:4"><i><font color="Green">E2</font></i></a>, <a class="ref" href="gate_1.html#T6">GATE_1:6</a>, <a class="ref" href="gate_1.html#T8">GATE_1:8</a></i>;<br/>
<b>hence </b><a NAME="E82:4"/>
(  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>37</sub></font> iff  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K4">XOR2</a> <span class="p1">(<span class="default"><a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>20</sub></font>,<span class="p2">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>4</sub></font>,<font color="Maroon">c<sub>33</sub></font></span>)</span></span>)</span>,<span class="p1">(<span class="default"><a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>50</sub></font>,<span class="p2">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>4</sub></font>,<font color="Maroon">c<sub>51</sub></font></span>)</span></span>)</span> )
 <b>by </b><i><a class="txt" href="gate_4.html#E5:4"><i><font color="Green">E5</font></i></a>, <a class="ref" href="gate_1.html#T8">GATE_1:8</a></i>;<br/>

<a NAME="E83:4"/>
( ( (  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>19</sub></font>,<span class="p1">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>3</sub></font>,<font color="Maroon">c<sub>33</sub></font></span>)</span> &amp; not  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>50</sub></font>,<span class="p1">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>3</sub></font>,<font color="Maroon">c<sub>51</sub></font></span>)</span> ) or ( not  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>19</sub></font>,<span class="p1">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>3</sub></font>,<font color="Maroon">c<sub>33</sub></font></span>)</span> &amp;  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>50</sub></font>,<span class="p1">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>3</sub></font>,<font color="Maroon">c<sub>51</sub></font></span>)</span> ) ) iff  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K4">XOR2</a> <span class="p1">(<span class="default"><a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>19</sub></font>,<span class="p2">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>3</sub></font>,<font color="Maroon">c<sub>33</sub></font></span>)</span></span>)</span>,<span class="p1">(<span class="default"><a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>50</sub></font>,<span class="p2">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>3</sub></font>,<font color="Maroon">c<sub>51</sub></font></span>)</span></span>)</span> )
 
<b>by </b><i><a class="ref" href="gate_1.html#T8">GATE_1:8</a></i>;<br/>
<a NAME="E84:4"/><b>then </b>
( ( ( ( (  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>19</sub></font> &amp; not  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>3</sub></font>,<font color="Maroon">c<sub>33</sub></font> ) or ( not  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>19</sub></font> &amp;  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>3</sub></font>,<font color="Maroon">c<sub>33</sub></font> ) ) &amp; not  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>3</sub></font>,<font color="Maroon">c<sub>51</sub></font> ) or ( not <!--HUMANRECFAILED-->(  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>19</sub></font> &amp; not  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>3</sub></font>,<font color="Maroon">c<sub>33</sub></font> ) &amp; not <!--HUMANRECFAILED-->( not  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>19</sub></font> &amp;  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>3</sub></font>,<font color="Maroon">c<sub>33</sub></font> ) &amp;  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>3</sub></font>,<font color="Maroon">c<sub>51</sub></font> ) ) iff  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K4">XOR2</a> <span class="p1">(<span class="default"><a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>19</sub></font>,<span class="p2">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>3</sub></font>,<font color="Maroon">c<sub>33</sub></font></span>)</span></span>)</span>,<span class="p1">(<span class="default"><a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>50</sub></font>,<span class="p2">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>3</sub></font>,<font color="Maroon">c<sub>51</sub></font></span>)</span></span>)</span> )
 
<b>by </b><i><a class="txt" href="gate_4.html#E1:4"><i><font color="Green">E1</font></i></a>, <a class="ref" href="gate_1.html#T8">GATE_1:8</a></i>;<br/>
<a NAME="E85:4"/><b>then </b>
( ( (  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>19</sub></font> &amp; (  not  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>3</sub></font> or  not  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>33</sub></font> ) &amp; (  not  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>3</sub></font> or  not  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>51</sub></font> ) ) or ( not  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>19</sub></font> &amp;  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>3</sub></font> &amp;  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>33</sub></font> &amp; (  not  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>3</sub></font> or  not  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>51</sub></font> ) ) or ( (  not  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>19</sub></font> or (  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>3</sub></font> &amp;  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>33</sub></font> ) ) &amp; (  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>19</sub></font> or  not  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>3</sub></font> or  not  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>33</sub></font> ) &amp;  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>3</sub></font> &amp;  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>51</sub></font> ) ) iff  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K4">XOR2</a> <span class="p1">(<span class="default"><a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>19</sub></font>,<span class="p2">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>3</sub></font>,<font color="Maroon">c<sub>33</sub></font></span>)</span></span>)</span>,<span class="p1">(<span class="default"><a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>50</sub></font>,<span class="p2">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>3</sub></font>,<font color="Maroon">c<sub>51</sub></font></span>)</span></span>)</span> )
 
<b>by </b><i><a class="ref" href="gate_1.html#T6">GATE_1:6</a></i>;<br/>
<a NAME="E86:4"/><b>then </b>
( ( (  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>19</sub></font> &amp; not  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>3</sub></font>,<font color="Maroon">c<sub>34</sub></font> ) or ( not  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>19</sub></font> &amp;  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>3</sub></font>,<font color="Maroon">c<sub>34</sub></font> ) ) iff  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K4">XOR2</a> <span class="p1">(<span class="default"><a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>19</sub></font>,<span class="p2">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>3</sub></font>,<font color="Maroon">c<sub>33</sub></font></span>)</span></span>)</span>,<span class="p1">(<span class="default"><a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>50</sub></font>,<span class="p2">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>3</sub></font>,<font color="Maroon">c<sub>51</sub></font></span>)</span></span>)</span> )
 
<b>by </b><i><a class="txt" href="gate_4.html#E2:4"><i><font color="Green">E2</font></i></a>, <a class="ref" href="gate_1.html#T6">GATE_1:6</a>, <a class="ref" href="gate_1.html#T8">GATE_1:8</a></i>;<br/>
<b>hence </b><a NAME="E87:4"/>
(  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>36</sub></font> iff  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K4">XOR2</a> <span class="p1">(<span class="default"><a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>19</sub></font>,<span class="p2">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>3</sub></font>,<font color="Maroon">c<sub>33</sub></font></span>)</span></span>)</span>,<span class="p1">(<span class="default"><a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>50</sub></font>,<span class="p2">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>3</sub></font>,<font color="Maroon">c<sub>51</sub></font></span>)</span></span>)</span> )
 <b>by </b><i><a class="txt" href="gate_4.html#E4:4"><i><font color="Green">E4</font></i></a>, <a class="ref" href="gate_1.html#T8">GATE_1:8</a></i>;<br/>

<a NAME="E88:4"/>
( ( (  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>18</sub></font>,<span class="p1">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>2</sub></font>,<font color="Maroon">c<sub>33</sub></font></span>)</span> &amp; not  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>50</sub></font>,<span class="p1">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>2</sub></font>,<font color="Maroon">c<sub>51</sub></font></span>)</span> ) or ( not  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>18</sub></font>,<span class="p1">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>2</sub></font>,<font color="Maroon">c<sub>33</sub></font></span>)</span> &amp;  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>50</sub></font>,<span class="p1">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>2</sub></font>,<font color="Maroon">c<sub>51</sub></font></span>)</span> ) ) iff  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K4">XOR2</a> <span class="p1">(<span class="default"><a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>18</sub></font>,<span class="p2">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>2</sub></font>,<font color="Maroon">c<sub>33</sub></font></span>)</span></span>)</span>,<span class="p1">(<span class="default"><a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>50</sub></font>,<span class="p2">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>2</sub></font>,<font color="Maroon">c<sub>51</sub></font></span>)</span></span>)</span> )
 
<b>by </b><i><a class="ref" href="gate_1.html#T8">GATE_1:8</a></i>;<br/>
<a NAME="E89:4"/><b>then </b>
( ( ( ( (  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>18</sub></font> &amp; not  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>2</sub></font>,<font color="Maroon">c<sub>33</sub></font> ) or ( not  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>18</sub></font> &amp;  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>2</sub></font>,<font color="Maroon">c<sub>33</sub></font> ) ) &amp; not  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>2</sub></font>,<font color="Maroon">c<sub>51</sub></font> ) or ( not <!--HUMANRECFAILED-->(  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>18</sub></font> &amp; not  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>2</sub></font>,<font color="Maroon">c<sub>33</sub></font> ) &amp; not <!--HUMANRECFAILED-->( not  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>18</sub></font> &amp;  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>2</sub></font>,<font color="Maroon">c<sub>33</sub></font> ) &amp;  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>2</sub></font>,<font color="Maroon">c<sub>51</sub></font> ) ) iff  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K4">XOR2</a> <span class="p1">(<span class="default"><a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>18</sub></font>,<span class="p2">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>2</sub></font>,<font color="Maroon">c<sub>33</sub></font></span>)</span></span>)</span>,<span class="p1">(<span class="default"><a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>50</sub></font>,<span class="p2">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>2</sub></font>,<font color="Maroon">c<sub>51</sub></font></span>)</span></span>)</span> )
 
<b>by </b><i><a class="txt" href="gate_4.html#E1:4"><i><font color="Green">E1</font></i></a>, <a class="ref" href="gate_1.html#T8">GATE_1:8</a></i>;<br/>
<a NAME="E90:4"/><b>then </b>
( ( (  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>18</sub></font> &amp; (  not  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>2</sub></font> or  not  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>33</sub></font> ) &amp; (  not  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>2</sub></font> or  not  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>51</sub></font> ) ) or ( not  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>18</sub></font> &amp;  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>2</sub></font> &amp;  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>33</sub></font> &amp; (  not  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>2</sub></font> or  not  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>51</sub></font> ) ) or ( (  not  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>18</sub></font> or (  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>2</sub></font> &amp;  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>33</sub></font> ) ) &amp; (  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>18</sub></font> or  not  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>2</sub></font> or  not  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>33</sub></font> ) &amp;  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>2</sub></font> &amp;  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>51</sub></font> ) ) iff  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K4">XOR2</a> <span class="p1">(<span class="default"><a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>18</sub></font>,<span class="p2">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>2</sub></font>,<font color="Maroon">c<sub>33</sub></font></span>)</span></span>)</span>,<span class="p1">(<span class="default"><a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>50</sub></font>,<span class="p2">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>2</sub></font>,<font color="Maroon">c<sub>51</sub></font></span>)</span></span>)</span> )
 
<b>by </b><i><a class="ref" href="gate_1.html#T6">GATE_1:6</a></i>;<br/>
<a NAME="E91:4"/><b>then </b>
( ( (  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>18</sub></font> &amp; not  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>2</sub></font>,<font color="Maroon">c<sub>34</sub></font> ) or ( not  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>18</sub></font> &amp;  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>2</sub></font>,<font color="Maroon">c<sub>34</sub></font> ) ) iff  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K4">XOR2</a> <span class="p1">(<span class="default"><a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>18</sub></font>,<span class="p2">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>2</sub></font>,<font color="Maroon">c<sub>33</sub></font></span>)</span></span>)</span>,<span class="p1">(<span class="default"><a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>50</sub></font>,<span class="p2">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>2</sub></font>,<font color="Maroon">c<sub>51</sub></font></span>)</span></span>)</span> )
 
<b>by </b><i><a class="txt" href="gate_4.html#E2:4"><i><font color="Green">E2</font></i></a>, <a class="ref" href="gate_1.html#T6">GATE_1:6</a>, <a class="ref" href="gate_1.html#T8">GATE_1:8</a></i>;<br/>
<b>hence </b><a NAME="E92:4"/>
(  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>35</sub></font> iff  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K4">XOR2</a> <span class="p1">(<span class="default"><a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>18</sub></font>,<span class="p2">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>2</sub></font>,<font color="Maroon">c<sub>33</sub></font></span>)</span></span>)</span>,<span class="p1">(<span class="default"><a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>50</sub></font>,<span class="p2">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>2</sub></font>,<font color="Maroon">c<sub>51</sub></font></span>)</span></span>)</span> )
 <b>by </b><i><a class="txt" href="gate_4.html#E3:4"><i><font color="Green">E3</font></i></a>, <a class="ref" href="gate_1.html#T8">GATE_1:8</a></i>;<br/>

<a NAME="E93:4"/>
( ( (  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>50</sub></font>,<span class="p1">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>1</sub></font>,<font color="Maroon">c<sub>33</sub></font></span>)</span> &amp; not  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>50</sub></font>,<span class="p1">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>1</sub></font>,<font color="Maroon">c<sub>51</sub></font></span>)</span> ) or ( not  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>50</sub></font>,<span class="p1">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>1</sub></font>,<font color="Maroon">c<sub>33</sub></font></span>)</span> &amp;  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>50</sub></font>,<span class="p1">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>1</sub></font>,<font color="Maroon">c<sub>51</sub></font></span>)</span> ) ) iff  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K4">XOR2</a> <span class="p1">(<span class="default"><a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>50</sub></font>,<span class="p2">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>1</sub></font>,<font color="Maroon">c<sub>33</sub></font></span>)</span></span>)</span>,<span class="p1">(<span class="default"><a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>50</sub></font>,<span class="p2">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>1</sub></font>,<font color="Maroon">c<sub>51</sub></font></span>)</span></span>)</span> )
 
<b>by </b><i><a class="ref" href="gate_1.html#T8">GATE_1:8</a></i>;<br/>
<a NAME="E94:4"/><b>then </b>
( ( (  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>50</sub></font> &amp; not  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>1</sub></font>,<font color="Maroon">c<sub>33</sub></font> &amp; not  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>1</sub></font>,<font color="Maroon">c<sub>51</sub></font> ) or ( not  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>50</sub></font> &amp;  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>1</sub></font>,<font color="Maroon">c<sub>33</sub></font> &amp; not  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>1</sub></font>,<font color="Maroon">c<sub>51</sub></font> ) or ( (  not  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>50</sub></font> or  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>1</sub></font>,<font color="Maroon">c<sub>33</sub></font> ) &amp; (  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>50</sub></font> or  not  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>1</sub></font>,<font color="Maroon">c<sub>33</sub></font> ) &amp;  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>1</sub></font>,<font color="Maroon">c<sub>51</sub></font> ) ) iff  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K4">XOR2</a> <span class="p1">(<span class="default"><a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>50</sub></font>,<span class="p2">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>1</sub></font>,<font color="Maroon">c<sub>33</sub></font></span>)</span></span>)</span>,<span class="p1">(<span class="default"><a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>50</sub></font>,<span class="p2">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>1</sub></font>,<font color="Maroon">c<sub>51</sub></font></span>)</span></span>)</span> )
 
<b>by </b><i><a class="txt" href="gate_4.html#E1:4"><i><font color="Green">E1</font></i></a>, <a class="ref" href="gate_1.html#T8">GATE_1:8</a></i>;<br/>
<a NAME="E95:4"/><b>then </b>
( ( (  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>50</sub></font> &amp; (  not  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>1</sub></font> or  not  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>33</sub></font> ) &amp; (  not  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>1</sub></font> or  not  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>51</sub></font> ) ) or ( not  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>50</sub></font> &amp;  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>1</sub></font> &amp;  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>33</sub></font> &amp; (  not  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>1</sub></font> or  not  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>51</sub></font> ) ) or ( (  not  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>50</sub></font> or (  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>1</sub></font> &amp;  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>33</sub></font> ) ) &amp; (  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>50</sub></font> or  not  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>1</sub></font> or  not  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>33</sub></font> ) &amp;  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>1</sub></font> &amp;  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>51</sub></font> ) ) iff  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K4">XOR2</a> <span class="p1">(<span class="default"><a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>50</sub></font>,<span class="p2">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>1</sub></font>,<font color="Maroon">c<sub>33</sub></font></span>)</span></span>)</span>,<span class="p1">(<span class="default"><a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>50</sub></font>,<span class="p2">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>1</sub></font>,<font color="Maroon">c<sub>51</sub></font></span>)</span></span>)</span> )
 
<b>by </b><i><a class="ref" href="gate_1.html#T6">GATE_1:6</a></i>;<br/>
<b>hence </b><a NAME="E96:4"/>
(  <a href="gate_1.html#NR1" target="_self">$</a> <font color="Maroon">c<sub>34</sub></font> iff  <a href="gate_1.html#NR1" target="_self">$</a>  <a href="gate_1.html#K4">XOR2</a> <span class="p1">(<span class="default"><a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>50</sub></font>,<span class="p2">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>1</sub></font>,<font color="Maroon">c<sub>33</sub></font></span>)</span></span>)</span>,<span class="p1">(<span class="default"><a href="gate_1.html#K4">XOR2</a> <font color="Maroon">c<sub>50</sub></font>,<span class="p2">(<span class="default"><a href="gate_1.html#K2">AND2</a> <font color="Maroon">c<sub>1</sub></font>,<font color="Maroon">c<sub>51</sub></font></span>)</span></span>)</span> )
 <b>by </b><i><a class="txt" href="gate_4.html#E1:4"><i><font color="Green">E1</font></i></a>, <a class="txt" href="gate_4.html#E2:4"><i><font color="Green">E2</font></i></a>, <a class="ref" href="gate_1.html#T8">GATE_1:8</a></i>;<br/>


</div>
