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<b>let </b><font color="Maroon">c<sub>2</sub></font>, <font color="Maroon">c<sub>3</sub></font> be    <a href="finseq_1.html#M2">FinSequence</a> of  <a href="qc_lang1.html#K1" target="_self">QC-variables</a> ;<br/>

<b>given </b><font color="Maroon">c<sub>4</sub></font> being   <a href="nat_1.html#NM1">Nat</a>, <font color="Maroon">c<sub>5</sub></font> being   <a href="qc_lang1.html#NM6">QC-pred_symbol</a> of <font color="Maroon">c<sub>4</sub></font>, <font color="Maroon">c<sub>6</sub></font> being    <a href="qc_lang1.html#M1" target="_self">QC-variable_list</a> of <font color="Maroon">c<sub>4</sub></font><b> such that </b><a NAME="E1:33_1_2"/><i><font color="Green">E25</font></i>: 
( <font color="Maroon">c<sub>2</sub></font> <a href="hidden.html#R1">=</a> <font color="Maroon">c<sub>6</sub></font> &amp; <font color="Maroon">c<sub>1</sub></font> <a href="hidden.html#R1">=</a> <font color="Maroon">c<sub>5</sub></font> <a href="qc_lang1.html#K9" target="_self">!</a> <font color="Maroon">c<sub>6</sub></font> )
 ;<br/>

<b>given </b><font color="Maroon">c<sub>7</sub></font> being   <a href="nat_1.html#NM1">Nat</a>, <font color="Maroon">c<sub>8</sub></font> being   <a href="qc_lang1.html#NM6">QC-pred_symbol</a> of <font color="Maroon">c<sub>7</sub></font>, <font color="Maroon">c<sub>9</sub></font> being    <a href="qc_lang1.html#M1" target="_self">QC-variable_list</a> of <font color="Maroon">c<sub>7</sub></font><b> such that </b><a NAME="E2:33_1_2"/><i><font color="Green">E26</font></i>: 
( <font color="Maroon">c<sub>3</sub></font> <a href="hidden.html#R1">=</a> <font color="Maroon">c<sub>9</sub></font> &amp; <font color="Maroon">c<sub>1</sub></font> <a href="hidden.html#R1">=</a> <font color="Maroon">c<sub>8</sub></font> <a href="qc_lang1.html#K9" target="_self">!</a> <font color="Maroon">c<sub>9</sub></font> )
 ;<br/>

<a NAME="E3:33_1_2"/><i><font color="Green">E27</font></i>: 
( <font color="Maroon">c<sub>1</sub></font> <a href="hidden.html#R1">=</a> <span class="p1"><a href="finseq_1.html#K12">&lt;*</a><span class="default"><font color="Maroon">c<sub>5</sub></font></span><a href="finseq_1.html#K12">*&gt;</a></span> <a href="finseq_1.html#K7">^</a> <font color="Maroon">c<sub>6</sub></font> &amp; <font color="Maroon">c<sub>1</sub></font> <a href="hidden.html#R1">=</a> <span class="p1"><a href="finseq_1.html#K12">&lt;*</a><span class="default"><font color="Maroon">c<sub>8</sub></font></span><a href="finseq_1.html#K12">*&gt;</a></span> <a href="finseq_1.html#K7">^</a> <font color="Maroon">c<sub>9</sub></font> )
 
<b>by </b><i><a class="txt" href="qc_lang1.html#E1:33_1_2"><i><font color="Green">E25</font></i></a>, <a class="txt" href="qc_lang1.html#E2:33_1_2"><i><font color="Green">E26</font></i></a>, <a class="ref" href="qc_lang1.html#T23" target="_self">Th23</a></i>;<br/>
<font color="Maroon">c<sub>5</sub></font> = 
 <a href="qc_lang1.html#K15" target="_self">the_pred_symbol_of</a> <font color="Maroon">c<sub>1</sub></font>
<b>by </b><i><a class="txt" href="qc_lang1.html#E1:33"><i><font color="Green">E24</font></i></a>, <a class="txt" href="qc_lang1.html#E1:33_1_2"><i><font color="Green">E25</font></i></a>, <a class="ref" href="qc_lang1.html#D21" target="_self">Def21</a></i>
<br/>.= 
<font color="Maroon">c<sub>8</sub></font>
<b>by </b><i><a class="txt" href="qc_lang1.html#E1:33"><i><font color="Green">E24</font></i></a>, <a class="txt" href="qc_lang1.html#E2:33_1_2"><i><font color="Green">E26</font></i></a>, <a class="ref" href="qc_lang1.html#D21" target="_self">Def21</a></i>
;<br/>
<b>hence </b><a NAME="E5:33_1_2"/>
<font color="Maroon">c<sub>2</sub></font> <a href="hidden.html#R1">=</a> <font color="Maroon">c<sub>3</sub></font>
 <b>by </b><i><a class="txt" href="qc_lang1.html#E1:33_1_2"><i><font color="Green">E25</font></i></a>, <a class="txt" href="qc_lang1.html#E2:33_1_2"><i><font color="Green">E26</font></i></a>, <a class="txt" href="qc_lang1.html#E3:33_1_2"><i><font color="Green">E27</font></i></a>, <a class="ref" href="finseq_1.html#T46">FINSEQ_1:46</a></i>;<br/>


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