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<b>consider </b><font color="Maroon">k</font> being    <a href="subset_1.html#M1">Element</a> of  <a href="numbers.html#K5">NAT</a> , <font color="Maroon">P</font> being   <a href="qc_lang1.html#NM6">QC-pred_symbol</a> of <font color="Maroon">k</font>, <font color="Maroon">ll</font> being    <a href="qc_lang1.html#M1">QC-variable_list</a> of <font color="Maroon">k</font>, <font color="Maroon">e</font> being    <a href="subset_1.html#M1">Element</a> of  <a href="substut1.html#K1" target="_self">vSUB</a> <b> such that </b><br/><a NAME="E2:52_1_1"/><i><font color="Green">E43</font></i>: 
<font color="Maroon">S</font> <a href="hidden.html#R1">=</a>  <a href="substut1.html#K17" target="_self">Sub_P</a> <font color="Maroon">P</font>,<font color="Maroon">ll</font>,<font color="Maroon">e</font>
 <b>by </b><i>, </i>;<br/>
<b>reconsider </b><font color="Maroon">ll</font> = <font color="Maroon">ll</font> as    <a href="finseq_1.html#M2">FinSequence</a> of  <a href="qc_lang1.html#K1">QC-variables</a>  ;<br/>
<b>take </b>
<font color="Maroon">ll</font>
;<br/>

<b>thus </b><a NAME="E4:52_1_1"/>
 ex <font color="Olive">k</font> being   <a href="subset_1.html#M1">Element</a> of  <a href="numbers.html#K5">NAT</a>  ex <font color="Olive">P</font> being  <a href="qc_lang1.html#NM6">QC-pred_symbol</a> of <font color="Olive">k</font> ex <font color="Olive">ll</font> being   <a href="qc_lang1.html#M1">QC-variable_list</a> of <font color="Olive">k</font> ex <font color="Olive">e</font> being   <a href="subset_1.html#M1">Element</a> of  <a href="substut1.html#K1" target="_self">vSUB</a>  st <br/>( <font color="Maroon">ll</font> <a href="hidden.html#R1">=</a> <font color="Olive">ll</font> &amp; <font color="Maroon">S</font> <a href="hidden.html#R1">=</a>  <a href="substut1.html#K17" target="_self">Sub_P</a> <font color="Olive">P</font>,<font color="Olive">ll</font>,<font color="Olive">e</font> )
 <b>by </b><i/>;<br/>


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