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<b>consider </b><font color="Maroon">d</font> being    <a href="subset_1.html#M1">Element</a> of <font color="Maroon">D</font>;<br/>
<a NAME="E2:108_1_1"/>
<font color="Maroon">i</font> <a href="finseq_2.html#K2" target="_self">|-&gt;</a> <font color="Maroon">d</font> is    <a href="finseq_1.html#M2">FinSequence</a> of <font color="Maroon">D</font>
 
<b>by </b><i/>;<br/>
<b>then reconsider </b><font color="Maroon">S</font> = <font color="Maroon">i</font> <a href="finseq_2.html#K2" target="_self">|-&gt;</a> <font color="Maroon">d</font> as    <a href="finseq_2.html#M2" target="_self">Element</a> of <font color="Maroon">D</font> <a href="finseq_2.html#K3" target="_self">*</a>  <b>by </b><i><a class="ref" href="finseq_1.html#D11">FINSEQ_1:def 11</a></i>;<br/>
<a NAME="E4:108_1_1"/>
 <a href="finseq_1.html#K3">len</a> <font color="Maroon">S</font> <a href="hidden.html#R1">=</a> <font color="Maroon">i</font>
 
<b>by </b><i><a class="ref" href="finseq_2.html#T10" target="_self">Th10</a></i>;<br/>
<a NAME="E5:108_1_1"/><b>then </b>
<font color="Maroon">S</font> <a href="hidden.html#R2">in</a> <span class="p1">{<span class="default"> <font color="Olive">s</font> where <font color="Olive">s</font> is    <a href="finseq_2.html#M2" target="_self">Element</a> of <font color="Maroon">D</font> <a href="finseq_2.html#K3" target="_self">*</a>  :  <a href="finseq_1.html#K3">len</a> <font color="Olive">s</font> <a href="hidden.html#R1">=</a> <font color="Maroon">i</font> </span>}</span> 
 
;<br/>
<b>hence </b><a NAME="E6:108_1_1"/>
not <font color="Maroon">i</font> <a href="finseq_2.html#K4" target="_self">-tuples_on</a> <font color="Maroon">D</font> is <a href="xboole_0.html#V1">empty</a>
 ;<br/>


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