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<b>let </b><font color="Maroon">c<sub>1</sub></font> be  <a href="henmodel.html#V1" target="_self">Consistent</a> <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="henmodel.html#M1" target="_self">Henkin_interpretation</a> of <font color="Maroon">c<sub>1</sub></font>;<br/>



<b>reconsider </b><font color="Maroon">c<sub>3</sub></font> =  <a href="xboole_0.html#K1">{}</a>  as    <a href="finseq_1.html#M2">FinSequence</a> of  <a href="cqc_lang.html#K7">CQC-WFF</a>  <b>by </b><i><a class="ref" href="finseq_1.html#T29">FINSEQ_1:29</a></i>;<br/>
<a NAME="E2:27"/>
(  <a href="relset_1.html#K5">rng</a> <font color="Maroon">c<sub>3</sub></font> <a href="tarski.html#R1">c=</a> <font color="Maroon">c<sub>1</sub></font> &amp;  <a href="calcul_1.html#R4">|-</a> <font color="Maroon">c<sub>3</sub></font> <a href="finseq_1.html#K8">^</a> <span class="p1"><a href="finseq_1.html#K12">&lt;*</a><span class="default"><a href="cqc_lang.html#K9">VERUM</a> </span><a href="finseq_1.html#K12">*&gt;</a></span> )
 
<b>by </b><i><a class="ref" href="henmodel.html#T15" target="_self">Th15</a>, <a class="ref" href="relat_1.html#T60">RELAT_1:60</a>, <a class="ref" href="xboole_1.html#T2">XBOOLE_1:2</a></i>;<br/>
<b>hence </b><a NAME="E3:27"/>
( <font color="Maroon">c<sub>2</sub></font>, <a href="henmodel.html#K4" target="_self">valH</a>  <a href="valuat_1.html#R1">|=</a>  <a href="cqc_lang.html#K9">VERUM</a>  iff <font color="Maroon">c<sub>1</sub></font> <a href="henmodel.html#R1" target="_self">|-</a>  <a href="cqc_lang.html#K9">VERUM</a>  )
 <b>by </b><i><a class="ref" href="henmodel.html#D2" target="_self">Def2</a>, <a class="ref" href="valuat_1.html#T44">VALUAT_1:44</a></i>;<br/>


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