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<b>let </b><font color="Maroon">c<sub>1</sub></font> be   <a href="subset_1.html#NM2">Subset</a> of <a href="cqc_lang.html#K7">CQC-WFF</a> ;<br/><b>let </b><font color="Maroon">c<sub>2</sub></font> be    <a href="subset_1.html#M2">Element</a> of  <a href="cqc_lang.html#K7">CQC-WFF</a> ;<br/>



<b>assume </b><a NAME="E1:43"/><i><font color="Green">E45</font></i>: 
 <a href="goedelcp.html#K6" target="_self">still_not-bound_in</a> <font color="Maroon">c<sub>1</sub></font> is <a href="finset_1.html#V1">finite</a>
 ;<br/>

<b>assume </b><a NAME="E2:43"/><i><font color="Green">E46</font></i>: 
<font color="Maroon">c<sub>1</sub></font> <a href="calcul_1.html#R7">|=</a> <font color="Maroon">c<sub>2</sub></font>
 ;<br/>

<b>assume </b><a NAME="E3:43"/><i><font color="Green">E47</font></i>: 
not <font color="Maroon">c<sub>1</sub></font> <a href="henmodel.html#R1">|-</a> <font color="Maroon">c<sub>2</sub></font>
 ;<br/>

<b>reconsider </b><font color="Maroon">c<sub>3</sub></font> = <font color="Maroon">c<sub>1</sub></font> <a href="subset_1.html#K4">\/</a> <span class="p1"><a href="domain_1.html#K6">{</a><span class="default"><span class="p2">(<span class="default"><a href="cqc_lang.html#K10">'not'</a> <font color="Maroon">c<sub>2</sub></font></span>)</span></span><a href="domain_1.html#K6">}</a></span> as   <a href="subset_1.html#NM2">Subset</a> of <a href="cqc_lang.html#K7">CQC-WFF</a>  ;<br/>
<a NAME="E5:43"/><i><font color="Green">E48</font></i>: 
 <a href="goedelcp.html#K6" target="_self">still_not-bound_in</a> <font color="Maroon">c<sub>3</sub></font> is <a href="finset_1.html#V1">finite</a>
 
<b>by </b><i><a class="txt" href="goedelcp.html#E1:43"><i><font color="Green">E45</font></i></a>, <a class="ref" href="goedelcp.html#T36" target="_self">Th36</a></i>;<br/>
<a NAME="E6:43"/><i><font color="Green">E49</font></i>: 
for <font color="Olive">b<sub>1</sub></font> being non <a href="xboole_0.html#V1">empty</a>  <a href="hidden.html#M1">set</a> <br/>for <font color="Olive">b<sub>2</sub></font> being   <a href="valuat_1.html#M1">interpretation</a> of <font color="Olive">b<sub>1</sub></font><br/>for <font color="Olive">b<sub>3</sub></font> being   <a href="subset_1.html#M1">Element</a> of  <a href="valuat_1.html#K2">Valuations_in</a> <font color="Olive">b<sub>1</sub></font> holds not <font color="Olive">b<sub>2</sub></font>,<font color="Olive">b<sub>3</sub></font> <a href="calcul_1.html#R6">|=</a> <font color="Maroon">c<sub>3</sub></font>
 
<b>by </b><i><a class="txt" href="goedelcp.html#E2:43"><i><font color="Green">E46</font></i></a>, <a class="ref" href="goedelcp.html#T37" target="_self">Th37</a></i>;<br/>
<a NAME="E7:43"/><i><font color="Green">E50</font></i>: 
<font color="Maroon">c<sub>3</sub></font> is <a href="henmodel.html#V1">Consistent</a>
 
<b>by </b><i><a class="txt" href="goedelcp.html#E3:43"><i><font color="Green">E47</font></i></a>, <a class="ref" href="henmodel.html#T9">HENMODEL:9</a></i>;<br/>
<b>consider </b><font color="Maroon">c<sub>4</sub></font> being  <a href="henmodel.html#V1">Consistent</a> <a href="subset_1.html#NM2">Subset</a> of <a href="cqc_lang.html#K7">CQC-WFF</a> , <font color="Maroon">c<sub>5</sub></font> being    <a href="henmodel.html#M1">Henkin_interpretation</a> of <font color="Maroon">c<sub>4</sub></font><b> such that </b><br/><a NAME="E9:43"/><i><font color="Green">E51</font></i>: 
<font color="Maroon">c<sub>5</sub></font>, <a href="henmodel.html#K4">valH</a>  <a href="calcul_1.html#R6">|=</a> <font color="Maroon">c<sub>3</sub></font>
 <b>by </b><i><a class="txt" href="goedelcp.html#E5:43"><i><font color="Green">E48</font></i></a>, <a class="txt" href="goedelcp.html#E7:43"><i><font color="Green">E50</font></i></a>, <a class="ref" href="goedelcp.html#T34" target="_self">Th34</a></i>;<br/>
<b>thus </b><a NAME="E10:43"/>
contradiction
 <b>by </b><i><a class="txt" href="goedelcp.html#E6:43"><i><font color="Green">E49</font></i></a>, <a class="txt" href="goedelcp.html#E9:43"><i><font color="Green">E51</font></i></a></i>;<br/>


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