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<b>let </b><font color="Maroon">V</font> be    <a href="modelc_1.html#L2" target="_self">CTLModelStr</a> ;<br/><b>let </b><font color="Maroon">Kai</font> be   <a href="funct_2.html#NM1">Function</a> of  <a href="modelc_1.html#K19" target="_self">atomic_WFF</a> ,the <a href="modelc_1.html#U6" target="_self">BasicAssign</a> of <font color="Maroon">V</font>;<br/><b>let </b><font color="Maroon">f1</font> be   <a href="funct_2.html#NM1">Function</a> of  <a href="modelc_1.html#K13" target="_self">CTL_WFF</a> ,the <a href="modelc_1.html#U5" target="_self">Assignations</a> of <font color="Maroon">V</font>;<br/><b>let </b><font color="Maroon">f2</font> be   <a href="funct_2.html#NM1">Function</a> of  <a href="modelc_1.html#K13" target="_self">CTL_WFF</a> ,the <a href="modelc_1.html#U5" target="_self">Assignations</a> of <font color="Maroon">V</font>;<br/>







<b>assume </b><b>that </b><br/><a NAME="E1:64"/><i><font color="Green">E27</font></i>: 
<font color="Maroon">f1</font> <a href="modelc_1.html#R1" target="_self">is-Evaluation-for</a> <font color="Maroon">Kai</font>
 <b>and </b><br/><a NAME="E2:64"/><i><font color="Green">E28</font></i>: 
<font color="Maroon">f2</font> <a href="modelc_1.html#R1" target="_self">is-Evaluation-for</a> <font color="Maroon">Kai</font>
 ;<br/>

<a NAME="E3:64"/>
for <font color="Olive">H</font> being   <a href="hidden.html#M1">set</a>   st <font color="Olive">H</font> <a href="hidden.html#R2">in</a>  <a href="modelc_1.html#K13" target="_self">CTL_WFF</a>  holds <br/><font color="Maroon">f1</font> <a href="funct_1.html#K1">.</a> <font color="Olive">H</font> <a href="hidden.html#R1">=</a> <font color="Maroon">f2</font> <a href="funct_1.html#K1">.</a> <font color="Olive">H</font>
 
<div><a class="txt" onclick="hs2(this)" href="javascript:()" title="64_1"><b>proof </b></a><div class="add">

<b>let </b><font color="Maroon">H</font> be    <a href="hidden.html#M1">set</a> ;<br/>

<b>assume </b><a NAME="E1:64_1"/><i><font color="Green">E50</font></i>: 
<font color="Maroon">H</font> <a href="hidden.html#R2">in</a>  <a href="modelc_1.html#K13" target="_self">CTL_WFF</a> 
 ;<br/>

<b>reconsider </b><font color="Maroon">H</font> = <font color="Maroon">H</font> as   <a href="modelc_1.html#NM1">CTL-formula</a> <b>by </b><i>, </i>;<br/>
<b>set </b><font color="Maroon">n</font> =  <a href="finseq_1.html#K3">len</a> <font color="Maroon">H</font>;<br/>
<a NAME="E3:64_1"/>
( <font color="Maroon">f1</font> <a href="modelc_1.html#R2" target="_self">is-PreEvaluation-for</a>  <a href="finseq_1.html#K3">len</a> <font color="Maroon">H</font>,<font color="Maroon">Kai</font> &amp; <font color="Maroon">f2</font> <a href="modelc_1.html#R2" target="_self">is-PreEvaluation-for</a>  <a href="finseq_1.html#K3">len</a> <font color="Maroon">H</font>,<font color="Maroon">Kai</font> )
 
<b>by </b><i>, , </i>;<br/>
<b>hence </b><a NAME="E4:64_1"/>
<font color="Maroon">f1</font> <a href="funct_1.html#K1">.</a> <font color="Maroon">H</font> <a href="hidden.html#R1">=</a> <font color="Maroon">f2</font> <a href="funct_1.html#K1">.</a> <font color="Maroon">H</font>
 <b>by </b><i/>;<br/>


</div><b>end;</b></div>
<b>hence </b><a NAME="E4:64"/>
<font color="Maroon">f1</font> <a href="funct_2.html#R2">=</a> <font color="Maroon">f2</font>
 <b>by </b><i><a class="ref" href="funct_2.html#T18">FUNCT_2:18</a></i>;<br/>


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