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<a NAME="E1:24_1_1"/>
 <a href="cqc_lang.html#K10">'not'</a> <span class="p1">(<span class="default"><font color="Maroon">S</font> <a href="sublemma.html#K2" target="_self">`1</a> </span>)</span> <a href="hidden.html#R2">in</a>  <a href="cqc_lang.html#K7">CQC-WFF</a> 
 
;<br/>
<a NAME="E2:24_1_1"/><b>then </b>
<span class="p1">(<span class="default"><a href="substut1.html#K20">Sub_not</a> <font color="Maroon">S</font></span>)</span> <a href="substut1.html#K18">`1</a>  <a href="hidden.html#R2">in</a>  <a href="cqc_lang.html#K7">CQC-WFF</a> 
 
<b>by </b><i/>;<br/>
<b>then consider </b><font color="Maroon">S'</font> being    <a href="subset_1.html#M1">Element</a> of  <a href="substut1.html#K16">QC-Sub-WFF</a> <b> such that </b><br/><a NAME="E4:24_1_1"/><i><font color="Green">E55</font></i>: 
(  <a href="substut1.html#K20">Sub_not</a> <font color="Maroon">S</font> <a href="hidden.html#R1">=</a> <font color="Maroon">S'</font> &amp; <font color="Maroon">S'</font> <a href="substut1.html#K18">`1</a>  is    <a href="subset_1.html#M2">Element</a> of  <a href="cqc_lang.html#K7">CQC-WFF</a>  )
 ;<br/>
<a NAME="E5:24_1_1"/>
 <a href="substut1.html#K20">Sub_not</a> <font color="Maroon">S</font> <a href="hidden.html#R2">in</a>  <a href="substut1.html#K38">CQC-Sub-WFF</a> 
 
<b>by </b><i>, <a class="ref" href="substut1.html#D39">SUBSTUT1:def 39</a></i>;<br/>
<b>hence </b><a NAME="E6:24_1_1"/>
 <a href="substut1.html#K20">Sub_not</a> <font color="Maroon">S</font> is    <a href="subset_1.html#M2">Element</a> of  <a href="substut1.html#K38">CQC-Sub-WFF</a> 
 ;<br/>


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