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

<b>let </b><font color="Maroon" title="c1">OAS</font> be   <a href="analoaf.html#NM1" title="ANALOAF:NM.1">OAffinSpace</a>;<br/><b>let </b><font color="Maroon" title="c2">o</font>, <font color="Maroon" title="c3">a</font>, <font color="Maroon" title="c4">b</font>, <font color="Maroon" title="c5">a'</font>, <font color="Maroon" title="c6">b'</font> be   <a href="struct_0.html#NM1" title="STRUCT_0:NM.1">Element</a> of <font color="Maroon" title="c1">OAS</font>;<br/>



<b>assume </b><b>that </b><br/><a NAME="E1:21"/><i><font color="Green" title="E15">A1</font></i>: 
not  <a href="diraf.html#R3" title="DIRAF:pred.3">LIN</a> <font color="Maroon" title="c2">o</font>,<font color="Maroon" title="c3">a</font>,<font color="Maroon" title="c4">b</font>
 <b>and </b><br/><a NAME="E2:21"/><i><font color="Green" title="E16">A2</font></i>: 
<font color="Maroon" title="c2">o</font>,<font color="Maroon" title="c3">a</font> <a href="analoaf.html#R2" title="ANALOAF:pred.2">//</a> <font color="Maroon" title="c2">o</font>,<font color="Maroon" title="c5">a'</font>
 <b>and </b><br/><a NAME="E3:21"/><i><font color="Green" title="E17">A3</font></i>: 
 <a href="diraf.html#R3" title="DIRAF:pred.3">LIN</a> <font color="Maroon" title="c2">o</font>,<font color="Maroon" title="c4">b</font>,<font color="Maroon" title="c6">b'</font>
 <b>and </b><br/><a NAME="E4:21"/><i><font color="Green" title="E18">A4</font></i>: 
<font color="Maroon" title="c3">a</font>,<font color="Maroon" title="c4">b</font> <a href="diraf.html#R2" title="DIRAF:pred.2">'||'</a> <font color="Maroon" title="c5">a'</font>,<font color="Maroon" title="c6">b'</font>
 ;<br/>

<b>consider </b><font color="Maroon" title="c7">a2</font> being   <a href="struct_0.html#NM1" title="STRUCT_0:NM.1">Element</a> of <font color="Maroon" title="c1">OAS</font><b> such that </b><br/><a NAME="E6:21"/><i><font color="Green" title="E19">A5</font></i>: 
 <a href="diraf.html#R1" title="DIRAF:pred.1">Mid</a> <font color="Maroon" title="c3">a</font>,<font color="Maroon" title="c2">o</font>,<font color="Maroon" title="c7">a2</font>
 <b>and </b><br/><a NAME="E7:21"/><i><font color="Green" title="E20">A6</font></i>: 
<font color="Maroon" title="c2">o</font> <a href="hidden.html#NR2" title="HIDDEN:NR.2">&lt;&gt;</a> <font color="Maroon" title="c7">a2</font>
 <b>by </b><i><a class="ref" href="diraf.html#T17" title="DIRAF:th.17">DIRAF:17</a></i>;<br/>
<a NAME="E8:21"/><i><font color="Green" title="E21">A7</font></i>: 
<font color="Maroon" title="c3">a</font>,<font color="Maroon" title="c2">o</font> <a href="analoaf.html#R2" title="ANALOAF:pred.2">//</a> <font color="Maroon" title="c2">o</font>,<font color="Maroon" title="c7">a2</font>
 
<b>by </b><i><a class="txt" href="papdesaf.html#E6:21"><i><font color="Green" title="E19">A5</font></i></a>, <a class="ref" href="diraf.html#D3" title="DIRAF:def.3">DIRAF:def 3</a></i>;<br/>
<a NAME="E9:21"/><i><font color="Green" title="E22">A8</font></i>: 
( <font color="Maroon" title="c2">o</font> <a href="hidden.html#NR2" title="HIDDEN:NR.2">&lt;&gt;</a> <font color="Maroon" title="c3">a</font> &amp; <font color="Maroon" title="c2">o</font> <a href="hidden.html#NR2" title="HIDDEN:NR.2">&lt;&gt;</a> <font color="Maroon" title="c4">b</font> &amp; <font color="Maroon" title="c4">b</font> <a href="hidden.html#NR2" title="HIDDEN:NR.2">&lt;&gt;</a> <font color="Maroon" title="c3">a</font> )
 
<b>by </b><i><a class="txt" href="papdesaf.html#E1:21"><i><font color="Green" title="E15">A1</font></i></a>, <a class="ref" href="diraf.html#T37" title="DIRAF:th.37">DIRAF:37</a></i>;<br/>
<b>then consider </b><font color="Maroon" title="c8">b2</font> being   <a href="struct_0.html#NM1" title="STRUCT_0:NM.1">Element</a> of <font color="Maroon" title="c1">OAS</font><b> such that </b><br/><a NAME="E11:21"/><i><font color="Green" title="E23">A9</font></i>: 
<font color="Maroon" title="c4">b</font>,<font color="Maroon" title="c2">o</font> <a href="analoaf.html#R2" title="ANALOAF:pred.2">//</a> <font color="Maroon" title="c2">o</font>,<font color="Maroon" title="c8">b2</font>
 <b>and </b><br/><a NAME="E12:21"/><i><font color="Green" title="E24">A10</font></i>: 
<font color="Maroon" title="c4">b</font>,<font color="Maroon" title="c3">a</font> <a href="analoaf.html#R2" title="ANALOAF:pred.2">//</a> <font color="Maroon" title="c7">a2</font>,<font color="Maroon" title="c8">b2</font>
 <b>by </b><i><a class="txt" href="papdesaf.html#E8:21"><i><font color="Green" title="E21">A7</font></i></a>, <a class="ref" href="analoaf.html#D5" title="ANALOAF:def.5">ANALOAF:def 5</a></i>;<br/>
<a NAME="E13:21"/>
 <a href="diraf.html#R3" title="DIRAF:pred.3">LIN</a> <font color="Maroon" title="c3">a</font>,<font color="Maroon" title="c2">o</font>,<font color="Maroon" title="c7">a2</font>
 
<b>by </b><i><a class="txt" href="papdesaf.html#E6:21"><i><font color="Green" title="E19">A5</font></i></a>, <a class="ref" href="diraf.html#T34" title="DIRAF:th.34">DIRAF:34</a></i>;<br/>
<a NAME="E14:21"/><b>then </b><i><font color="Green" title="E25">A11</font></i>: 
 <a href="diraf.html#R3" title="DIRAF:pred.3">LIN</a> <font color="Maroon" title="c2">o</font>,<font color="Maroon" title="c7">a2</font>,<font color="Maroon" title="c3">a</font>
 
<b>by </b><i><a class="ref" href="diraf.html#T36" title="DIRAF:th.36">DIRAF:36</a></i>;<br/>
<a NAME="E15:21"/>
 <a href="diraf.html#R1" title="DIRAF:pred.1">Mid</a> <font color="Maroon" title="c4">b</font>,<font color="Maroon" title="c2">o</font>,<font color="Maroon" title="c8">b2</font>
 
<b>by </b><i><a class="txt" href="papdesaf.html#E11:21"><i><font color="Green" title="E23">A9</font></i></a>, <a class="ref" href="diraf.html#D3" title="DIRAF:def.3">DIRAF:def 3</a></i>;<br/>
<a NAME="E16:21"/><b>then </b>
 <a href="diraf.html#R3" title="DIRAF:pred.3">LIN</a> <font color="Maroon" title="c4">b</font>,<font color="Maroon" title="c2">o</font>,<font color="Maroon" title="c8">b2</font>
 
<b>by </b><i><a class="ref" href="diraf.html#T34" title="DIRAF:th.34">DIRAF:34</a></i>;<br/>
<a NAME="E17:21"/><b>then </b><i><font color="Green" title="E26">A12</font></i>: 
 <a href="diraf.html#R3" title="DIRAF:pred.3">LIN</a> <font color="Maroon" title="c8">b2</font>,<font color="Maroon" title="c2">o</font>,<font color="Maroon" title="c4">b</font>
 
<b>by </b><i><a class="ref" href="diraf.html#T36" title="DIRAF:th.36">DIRAF:36</a></i>;<br/>
<a NAME="E18:21"/><i><font color="Green" title="E27">A13</font></i>: 
<font color="Maroon" title="c2">o</font> <a href="hidden.html#NR2" title="HIDDEN:NR.2">&lt;&gt;</a> <font color="Maroon" title="c8">b2</font>
 
<div><a class="txt" onclick="hs2(this)" href="javascript:()" title="21_1"><b>proof </b></a><div class="add">

<b>assume </b><a NAME="E1:21_1"/>
<font color="Maroon" title="c2">o</font> <a href="hidden.html#R1" title="HIDDEN:pred.1">=</a> <font color="Maroon" title="c8">b2</font>
 ;<br/>

<a NAME="E2:21_1"/><b>then </b>
<font color="Maroon" title="c2">o</font>,<font color="Maroon" title="c7">a2</font> <a href="analoaf.html#R2" title="ANALOAF:pred.2">//</a> <font color="Maroon" title="c3">a</font>,<font color="Maroon" title="c4">b</font>
 
<b>by </b><i><a class="txt" href="papdesaf.html#E12:21"><i><font color="Green" title="E24">A10</font></i></a>, <a class="ref" href="diraf.html#T5" title="DIRAF:th.5">DIRAF:5</a></i>;<br/>
<a NAME="E3:21_1"/><b>then </b>
<font color="Maroon" title="c2">o</font>,<font color="Maroon" title="c7">a2</font> <a href="diraf.html#R2" title="DIRAF:pred.2">'||'</a> <font color="Maroon" title="c3">a</font>,<font color="Maroon" title="c4">b</font>
 
<b>by </b><i><a class="ref" href="diraf.html#D4" title="DIRAF:def.4">DIRAF:def 4</a></i>;<br/>
<a NAME="E4:21_1"/><b>then </b>
(  <a href="diraf.html#R3" title="DIRAF:pred.3">LIN</a> <font color="Maroon" title="c2">o</font>,<font color="Maroon" title="c7">a2</font>,<font color="Maroon" title="c2">o</font> &amp;  <a href="diraf.html#R3" title="DIRAF:pred.3">LIN</a> <font color="Maroon" title="c2">o</font>,<font color="Maroon" title="c7">a2</font>,<font color="Maroon" title="c4">b</font> )
 
<b>by </b><i><a class="txt" href="papdesaf.html#E7:21"><i><font color="Green" title="E20">A6</font></i></a>, <a class="txt" href="papdesaf.html#E14:21"><i><font color="Green" title="E25">A11</font></i></a>, <a class="ref" href="diraf.html#T37" title="DIRAF:th.37">DIRAF:37</a>, <a class="ref" href="diraf.html#T39" title="DIRAF:th.39">DIRAF:39</a></i>;<br/>
<b>hence </b><a NAME="E5:21_1"/>
contradiction
 <b>by </b><i><a class="txt" href="papdesaf.html#E1:21"><i><font color="Green" title="E15">A1</font></i></a>, <a class="txt" href="papdesaf.html#E7:21"><i><font color="Green" title="E20">A6</font></i></a>, <a class="txt" href="papdesaf.html#E14:21"><i><font color="Green" title="E25">A11</font></i></a>, <a class="ref" href="diraf.html#T38" title="DIRAF:th.38">DIRAF:38</a></i>;<br/>


</div><b>end;</b></div>
<a NAME="E19:21"/><i><font color="Green" title="E28">A14</font></i>: 
not  <a href="diraf.html#R3" title="DIRAF:pred.3">LIN</a> <font color="Maroon" title="c2">o</font>,<font color="Maroon" title="c7">a2</font>,<font color="Maroon" title="c8">b2</font>
 
<div><a class="txt" onclick="hs2(this)" href="javascript:()" title="21_2"><b>proof </b></a><div class="add">

<b>assume </b><a NAME="E1:21_2"/><i><font color="Green" title="E29">A15</font></i>: 
 <a href="diraf.html#R3" title="DIRAF:pred.3">LIN</a> <font color="Maroon" title="c2">o</font>,<font color="Maroon" title="c7">a2</font>,<font color="Maroon" title="c8">b2</font>
 ;<br/>

<a NAME="E2:21_2"/>
 <a href="diraf.html#R3" title="DIRAF:pred.3">LIN</a> <font color="Maroon" title="c2">o</font>,<font color="Maroon" title="c7">a2</font>,<font color="Maroon" title="c2">o</font>
 
<b>by </b><i><a class="ref" href="diraf.html#T37" title="DIRAF:th.37">DIRAF:37</a></i>;<br/>
<a NAME="E3:21_2"/><b>then </b><i><font color="Green" title="E30">A16</font></i>: 
 <a href="diraf.html#R3" title="DIRAF:pred.3">LIN</a> <font color="Maroon" title="c8">b2</font>,<font color="Maroon" title="c2">o</font>,<font color="Maroon" title="c3">a</font>
 
<b>by </b><i><a class="txt" href="papdesaf.html#E7:21"><i><font color="Green" title="E20">A6</font></i></a>, <a class="txt" href="papdesaf.html#E14:21"><i><font color="Green" title="E25">A11</font></i></a>, <a class="txt" href="papdesaf.html#E1:21_2"><i><font color="Green" title="E29">A15</font></i></a>, <a class="ref" href="diraf.html#T38" title="DIRAF:th.38">DIRAF:38</a></i>;<br/>
<a NAME="E4:21_2"/>
 <a href="diraf.html#R3" title="DIRAF:pred.3">LIN</a> <font color="Maroon" title="c8">b2</font>,<font color="Maroon" title="c2">o</font>,<font color="Maroon" title="c2">o</font>
 
<b>by </b><i><a class="ref" href="diraf.html#T37" title="DIRAF:th.37">DIRAF:37</a></i>;<br/>
<b>hence </b><a NAME="E5:21_2"/>
contradiction
 <b>by </b><i><a class="txt" href="papdesaf.html#E1:21"><i><font color="Green" title="E15">A1</font></i></a>, <a class="txt" href="papdesaf.html#E17:21"><i><font color="Green" title="E26">A12</font></i></a>, <a class="txt" href="papdesaf.html#E18:21"><i><font color="Green" title="E27">A13</font></i></a>, <a class="txt" href="papdesaf.html#E3:21_2"><i><font color="Green" title="E30">A16</font></i></a>, <a class="ref" href="diraf.html#T38" title="DIRAF:th.38">DIRAF:38</a></i>;<br/>


</div><b>end;</b></div>
<a NAME="E20:21"/><b>then </b><i><font color="Green" title="E29">A17</font></i>: 
<font color="Maroon" title="c7">a2</font> <a href="hidden.html#NR2" title="HIDDEN:NR.2">&lt;&gt;</a> <font color="Maroon" title="c8">b2</font>
 
<b>by </b><i><a class="ref" href="diraf.html#T37" title="DIRAF:th.37">DIRAF:37</a></i>;<br/>
<a NAME="E21:21"/><i><font color="Green" title="E30">A18</font></i>: 
<font color="Maroon" title="c7">a2</font>,<font color="Maroon" title="c2">o</font> <a href="analoaf.html#R2" title="ANALOAF:pred.2">//</a> <font color="Maroon" title="c2">o</font>,<font color="Maroon" title="c5">a'</font>
 
<div><a class="txt" onclick="hs2(this)" href="javascript:()" title="21_3"><b>proof </b></a><div class="add">

<a NAME="E1:21_3"/>
<font color="Maroon" title="c3">a</font>,<font color="Maroon" title="c2">o</font> <a href="analoaf.html#R2" title="ANALOAF:pred.2">//</a> <font color="Maroon" title="c2">o</font>,<font color="Maroon" title="c7">a2</font>
 
<b>by </b><i><a class="txt" href="papdesaf.html#E6:21"><i><font color="Green" title="E19">A5</font></i></a>, <a class="ref" href="diraf.html#D3" title="DIRAF:def.3">DIRAF:def 3</a></i>;<br/>
<a NAME="E2:21_3"/><b>then </b>
<font color="Maroon" title="c7">a2</font>,<font color="Maroon" title="c2">o</font> <a href="analoaf.html#R2" title="ANALOAF:pred.2">//</a> <font color="Maroon" title="c2">o</font>,<font color="Maroon" title="c3">a</font>
 
<b>by </b><i><a class="ref" href="diraf.html#T5" title="DIRAF:th.5">DIRAF:5</a></i>;<br/>
<b>hence </b><a NAME="E3:21_3"/>
<font color="Maroon" title="c7">a2</font>,<font color="Maroon" title="c2">o</font> <a href="analoaf.html#R2" title="ANALOAF:pred.2">//</a> <font color="Maroon" title="c2">o</font>,<font color="Maroon" title="c5">a'</font>
 <b>by </b><i><a class="txt" href="papdesaf.html#E2:21"><i><font color="Green" title="E16">A2</font></i></a>, <a class="txt" href="papdesaf.html#E9:21"><i><font color="Green" title="E22">A8</font></i></a>, <a class="ref" href="diraf.html#T6" title="DIRAF:th.6">DIRAF:6</a></i>;<br/>


</div><b>end;</b></div>
<a NAME="E22:21"/><i><font color="Green" title="E31">A19</font></i>: 
<font color="Maroon" title="c7">a2</font>,<font color="Maroon" title="c8">b2</font> <a href="diraf.html#R2" title="DIRAF:pred.2">'||'</a> <font color="Maroon" title="c5">a'</font>,<font color="Maroon" title="c6">b'</font>
 
<div><a class="txt" onclick="hs2(this)" href="javascript:()" title="21_4"><b>proof </b></a><div class="add">

<a NAME="E1:21_4"/>
<font color="Maroon" title="c7">a2</font>,<font color="Maroon" title="c8">b2</font> <a href="analoaf.html#R2" title="ANALOAF:pred.2">//</a> <font color="Maroon" title="c4">b</font>,<font color="Maroon" title="c3">a</font>
 
<b>by </b><i><a class="txt" href="papdesaf.html#E12:21"><i><font color="Green" title="E24">A10</font></i></a>, <a class="ref" href="diraf.html#T5" title="DIRAF:th.5">DIRAF:5</a></i>;<br/>
<a NAME="E2:21_4"/><b>then </b>
<font color="Maroon" title="c7">a2</font>,<font color="Maroon" title="c8">b2</font> <a href="diraf.html#R2" title="DIRAF:pred.2">'||'</a> <font color="Maroon" title="c3">a</font>,<font color="Maroon" title="c4">b</font>
 
<b>by </b><i><a class="ref" href="diraf.html#D4" title="DIRAF:def.4">DIRAF:def 4</a></i>;<br/>
<b>hence </b><a NAME="E3:21_4"/>
<font color="Maroon" title="c7">a2</font>,<font color="Maroon" title="c8">b2</font> <a href="diraf.html#R2" title="DIRAF:pred.2">'||'</a> <font color="Maroon" title="c5">a'</font>,<font color="Maroon" title="c6">b'</font>
 <b>by </b><i><a class="txt" href="papdesaf.html#E4:21"><i><font color="Green" title="E18">A4</font></i></a>, <a class="txt" href="papdesaf.html#E9:21"><i><font color="Green" title="E22">A8</font></i></a>, <a class="ref" href="diraf.html#T28" title="DIRAF:th.28">DIRAF:28</a></i>;<br/>


</div><b>end;</b></div>
<a NAME="E23:21"/>
 <a href="diraf.html#R3" title="DIRAF:pred.3">LIN</a> <font color="Maroon" title="c2">o</font>,<font color="Maroon" title="c8">b2</font>,<font color="Maroon" title="c6">b'</font>
 
<div><a class="txt" onclick="hs2(this)" href="javascript:()" title="21_5"><b>proof </b></a><div class="add">

<a NAME="E1:21_5"/>
 <a href="diraf.html#R1" title="DIRAF:pred.1">Mid</a> <font color="Maroon" title="c4">b</font>,<font color="Maroon" title="c2">o</font>,<font color="Maroon" title="c8">b2</font>
 
<b>by </b><i><a class="txt" href="papdesaf.html#E11:21"><i><font color="Green" title="E23">A9</font></i></a>, <a class="ref" href="diraf.html#D3" title="DIRAF:def.3">DIRAF:def 3</a></i>;<br/>
<a NAME="E2:21_5"/><b>then </b>
 <a href="diraf.html#R3" title="DIRAF:pred.3">LIN</a> <font color="Maroon" title="c4">b</font>,<font color="Maroon" title="c2">o</font>,<font color="Maroon" title="c8">b2</font>
 
<b>by </b><i><a class="ref" href="diraf.html#T34" title="DIRAF:th.34">DIRAF:34</a></i>;<br/>
<a NAME="E3:21_5"/><b>then </b>
(  <a href="diraf.html#R3" title="DIRAF:pred.3">LIN</a> <font color="Maroon" title="c2">o</font>,<font color="Maroon" title="c4">b</font>,<font color="Maroon" title="c8">b2</font> &amp;  <a href="diraf.html#R3" title="DIRAF:pred.3">LIN</a> <font color="Maroon" title="c2">o</font>,<font color="Maroon" title="c4">b</font>,<font color="Maroon" title="c2">o</font> )
 
<b>by </b><i><a class="ref" href="diraf.html#T36" title="DIRAF:th.36">DIRAF:36</a>, <a class="ref" href="diraf.html#T37" title="DIRAF:th.37">DIRAF:37</a></i>;<br/>
<b>hence </b><a NAME="E4:21_5"/>
 <a href="diraf.html#R3" title="DIRAF:pred.3">LIN</a> <font color="Maroon" title="c2">o</font>,<font color="Maroon" title="c8">b2</font>,<font color="Maroon" title="c6">b'</font>
 <b>by </b><i><a class="txt" href="papdesaf.html#E3:21"><i><font color="Green" title="E17">A3</font></i></a>, <a class="txt" href="papdesaf.html#E9:21"><i><font color="Green" title="E22">A8</font></i></a>, <a class="ref" href="diraf.html#T38" title="DIRAF:th.38">DIRAF:38</a></i>;<br/>


</div><b>end;</b></div>
<a NAME="E24:21"/><b>then </b><i><font color="Green" title="E32">A20</font></i>: 
( <font color="Maroon" title="c7">a2</font>,<font color="Maroon" title="c8">b2</font> <a href="analoaf.html#R2" title="ANALOAF:pred.2">//</a> <font color="Maroon" title="c6">b'</font>,<font color="Maroon" title="c5">a'</font> &amp; <font color="Maroon" title="c8">b2</font>,<font color="Maroon" title="c2">o</font> <a href="analoaf.html#R2" title="ANALOAF:pred.2">//</a> <font color="Maroon" title="c2">o</font>,<font color="Maroon" title="c6">b'</font> )
 
<b>by </b><i><a class="txt" href="papdesaf.html#E19:21"><i><font color="Green" title="E28">A14</font></i></a>, <a class="txt" href="papdesaf.html#E21:21"><i><font color="Green" title="E30">A18</font></i></a>, <a class="txt" href="papdesaf.html#E22:21"><i><font color="Green" title="E31">A19</font></i></a>, <a class="ref" href="papdesaf.html#T12" target="_self" title="PAPDESAF:th.12">Th12</a></i>;<br/>
<a NAME="E25:21"/>
<font color="Maroon" title="c2">o</font>,<font color="Maroon" title="c4">b</font> <a href="analoaf.html#R2" title="ANALOAF:pred.2">//</a> <font color="Maroon" title="c8">b2</font>,<font color="Maroon" title="c2">o</font>
 
<b>by </b><i><a class="txt" href="papdesaf.html#E11:21"><i><font color="Green" title="E23">A9</font></i></a>, <a class="ref" href="diraf.html#T5" title="DIRAF:th.5">DIRAF:5</a></i>;<br/>
<b>hence </b><a NAME="E26:21"/>
<font color="Maroon" title="c2">o</font>,<font color="Maroon" title="c4">b</font> <a href="analoaf.html#R2" title="ANALOAF:pred.2">//</a> <font color="Maroon" title="c2">o</font>,<font color="Maroon" title="c6">b'</font>
 <b>by </b><i><a class="txt" href="papdesaf.html#E18:21"><i><font color="Green" title="E27">A13</font></i></a>, <a class="txt" href="papdesaf.html#E24:21"><i><font color="Green" title="E32">A20</font></i></a>, <a class="ref" href="diraf.html#T6" title="DIRAF:th.6">DIRAF:6</a></i>;<br/>

<a NAME="E27:21"/>
( <font color="Maroon" title="c3">a</font>,<font color="Maroon" title="c4">b</font> <a href="analoaf.html#R2" title="ANALOAF:pred.2">//</a> <font color="Maroon" title="c8">b2</font>,<font color="Maroon" title="c7">a2</font> &amp; <font color="Maroon" title="c8">b2</font>,<font color="Maroon" title="c7">a2</font> <a href="analoaf.html#R2" title="ANALOAF:pred.2">//</a> <font color="Maroon" title="c5">a'</font>,<font color="Maroon" title="c6">b'</font> )
 
<b>by </b><i><a class="txt" href="papdesaf.html#E12:21"><i><font color="Green" title="E24">A10</font></i></a>, <a class="txt" href="papdesaf.html#E24:21"><i><font color="Green" title="E32">A20</font></i></a>, <a class="ref" href="diraf.html#T5" title="DIRAF:th.5">DIRAF:5</a></i>;<br/>
<b>hence </b><a NAME="E28:21"/>
<font color="Maroon" title="c3">a</font>,<font color="Maroon" title="c4">b</font> <a href="analoaf.html#R2" title="ANALOAF:pred.2">//</a> <font color="Maroon" title="c5">a'</font>,<font color="Maroon" title="c6">b'</font>
 <b>by </b><i><a class="txt" href="papdesaf.html#E20:21"><i><font color="Green" title="E29">A17</font></i></a>, <a class="ref" href="diraf.html#T6" title="DIRAF:th.6">DIRAF:6</a></i>;<br/>


</div>
