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<b>reconsider </b><font color="Maroon">c<sub>4</sub></font> = <font color="Maroon">c<sub>2</sub></font> as    <a href="subset_1.html#M1">Element</a> of  <a href="numbers.html#K2">COMPLEX</a>  <b>by </b><i><a class="ref" href="xcmplx_0.html#D2">XCMPLX_0:def 2</a></i>;<br/>
<a NAME="E2:7_1_1"/>
<font color="Maroon">c<sub>4</sub></font> <a href="complsp1.html#K6">*</a> <font color="Maroon">c<sub>3</sub></font> <a href="hidden.html#R1">=</a> <span class="p1">(<span class="default"><a href="binop_2.html#K29">multcomplex</a>  <a href="funcop_1.html#K8">[;]</a> <font color="Maroon">c<sub>4</sub></font>,<span class="p2">(<span class="default"><a href="partfun1.html#K6">id</a> <a href="numbers.html#K2">COMPLEX</a> </span>)</span></span>)</span> <a href="finseqop.html#K5">*</a> <font color="Maroon">c<sub>3</sub></font>
 
<b>by </b><i><a class="txt" href="complsp2.html#E2"><i><font color="Green">Lemma2</font></i></a></i>;<br/>
<b>hence </b><a NAME="E3:7_1_1"/>
<font color="Maroon">c<sub>2</sub></font> <a href="complsp1.html#K6">*</a> <font color="Maroon">c<sub>3</sub></font> is    <a href="finseq_2.html#M2">Element</a> of <font color="Maroon">c<sub>1</sub></font> <a href="finseq_2.html#K4">-tuples_on</a> <a href="numbers.html#K2">COMPLEX</a> 
 <b>by </b><i><a class="ref" href="finseq_2.html#T133">FINSEQ_2:133</a></i>;<br/>


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