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<b>let </b><font color="Maroon">H</font> be    <a href="subset_1.html#M1">Element</a> of  <a href="qc_lang1.html#K8">QC-WFF</a> ;<br/><b>let </b><font color="Maroon">F</font> be    <a href="subset_1.html#M1">Element</a> of  <a href="qc_lang1.html#K8">QC-WFF</a> ;<br/>



<b>assume </b><a NAME="E1:44"/>
 ex <font color="Olive">k</font> being   <a href="subset_1.html#M1">Element</a> of  <a href="numbers.html#K5">NAT</a>  ex <font color="Olive">P</font> being  <a href="qc_lang1.html#NM6">QC-pred_symbol</a> of <font color="Olive">k</font> ex <font color="Olive">V</font> being   <a href="qc_lang1.html#M1">QC-variable_list</a> of <font color="Olive">k</font> st <font color="Maroon">H</font> <a href="hidden.html#R1">=</a> <font color="Olive">P</font> <a href="qc_lang1.html#K9">!</a> <font color="Olive">V</font>
 ; <i><font color="Red">:: according to </font></i><a class="ref" href="qc_lang1.html#D17">QC_LANG1:def 17</a><br/>

<b>hence </b><a NAME="E2:44"/>
not <font color="Maroon">F</font> <a href="qc_lang2.html#R1" target="_self">is_immediate_constituent_of</a> <font color="Maroon">H</font>
 <b>by </b><i/>;<br/>


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