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<b>let </b><font color="Maroon" title="c1">X</font> be   <a href="subset_1.html#NM2" title="SUBSET_1:NM.2">Subset</a> of <a href="cqc_lang.html#K4" title="CQC_LANG:func.4">CQC-WFF</a> ;<br/>

<a NAME="E1:56"/>
 <a href="cqc_the1.html#K1" title="CQC_THE1:func.1">Cn</a> <font color="Maroon" title="c1">X</font> <a href="cqc_the1.html#NR1" title="CQC_THE1:NR.1">is_a_theory</a> 
 
<b>by </b><i><a class="ref" href="cqc_the1.html#T36" target="_self" title="CQC_THE1:th.36">Th36</a></i>;<br/>
<b>hence </b><a NAME="E2:56"/>
 <a href="cqc_the1.html#K4" title="CQC_THE1:func.4">TAUT</a>  <a href="tarski.html#R1" title="TARSKI:pred.1">c=</a>  <a href="cqc_the1.html#K1" title="CQC_THE1:func.1">Cn</a> <font color="Maroon" title="c1">X</font>
 <b>by </b><i><a class="ref" href="cqc_the1.html#T74" target="_self" title="CQC_THE1:th.74">Th74</a></i>;<br/>


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