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<b>let </b><font color="Maroon">x1</font> be   <a href="struct_0.html#NM1">Element</a> of <a href="complfld.html#K1" target="_self">F_Complex</a> , <font color="Maroon">y1</font> be   <a href="struct_0.html#NM1">Element</a> of <a href="complfld.html#K1" target="_self">F_Complex</a> ;<br/><b>let </b><font color="Maroon">x2</font> be  <a href="xcmplx_0.html#V1">complex</a>  <a href="ordinal1.html#NM1" target="_self">number</a> , <font color="Maroon">y2</font> be  <a href="xcmplx_0.html#V1">complex</a>  <a href="ordinal1.html#NM1" target="_self">number</a> ;<br/>



<b>assume </b><a NAME="E1:10"/><i><font color="Green">E36</font></i>: 
( <font color="Maroon">x1</font> <a href="hidden.html#R1">=</a> <font color="Maroon">x2</font> &amp; <font color="Maroon">y1</font> <a href="hidden.html#R1">=</a> <font color="Maroon">y2</font> )
 ;<br/>

<a NAME="E2:10"/><b>then </b><i><font color="Green">E43</font></i>: 
 <a href="rlvect_1.html#K5">-</a> <font color="Maroon">y1</font> <a href="hidden.html#R1">=</a>  <a href="xcmplx_0.html#K4">-</a> <font color="Maroon">y2</font>
 
<b>by </b><i/>;<br/>
<b>thus </b><font color="Maroon">x1</font> <a href="rlvect_1.html#K6">-</a> <font color="Maroon">y1</font> = 
<font color="Maroon">x2</font> <a href="xcmplx_0.html#K2">+</a> <span class="p1">(<span class="default"><a href="xcmplx_0.html#K4">-</a> <font color="Maroon">y2</font></span>)</span>
<b>by </b><i>, , </i>
<br/>.= 
<font color="Maroon">x2</font> <a href="xcmplx_0.html#K6">-</a> <font color="Maroon">y2</font>

;<br/>


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