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<b>let </b><font color="Maroon" title="c1">z1</font>, <font color="Maroon" title="c2">z2</font> be    <a href="subset_1.html#M1" title="SUBSET_1:mode.1">Element</a> of  <a href="numbers.html#K2" title="NUMBERS:func.2">COMPLEX</a> ;<br/>



<b>assume </b><a NAME="E1:7"/><i><font color="Green" title="E3">A1</font></i>: 
 <a href="euclid_3.html#K1" title="EUCLID_3:func.1">cpx2euc</a> <font color="Maroon" title="c1">z1</font> <a href="hidden.html#R1" title="HIDDEN:pred.1">=</a>  <a href="euclid_3.html#K1" title="EUCLID_3:func.1">cpx2euc</a> <font color="Maroon" title="c2">z2</font>
 ;<br/>

<a NAME="E2:7"/>
<font color="Maroon" title="c2">z2</font> <a href="hidden.html#R1" title="HIDDEN:pred.1">=</a>  <a href="euclid_3.html#K2" title="EUCLID_3:func.2">euc2cpx</a> <span class="p1">(<span class="default"><a href="euclid_3.html#K1" title="EUCLID_3:func.1">cpx2euc</a> <font color="Maroon" title="c2">z2</font></span>)</span>
 
<b>by </b><i><a class="ref" href="euclid_3.html#T1" target="_self" title="EUCLID_3:th.1">Th1</a></i>;<br/>
<b>hence </b><a NAME="E3:7"/>
<font color="Maroon" title="c1">z1</font> <a href="hidden.html#R1" title="HIDDEN:pred.1">=</a> <font color="Maroon" title="c2">z2</font>
 <b>by </b><i><a class="txt" href="euclid_3.html#E1:7"><i><font color="Green" title="E3">A1</font></i></a>, <a class="ref" href="euclid_3.html#T1" target="_self" title="EUCLID_3:th.1">Th1</a></i>;<br/>


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