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<b>let </b><font color="Maroon">z1</font> be    <a href="subset_1.html#M1">Element</a> of  <a href="numbers.html#K2">COMPLEX</a> ;<br/><b>let </b><font color="Maroon">z2</font> be    <a href="subset_1.html#M1">Element</a> of  <a href="numbers.html#K2">COMPLEX</a> ;<br/><b>let </b><font color="Maroon">z3</font> be    <a href="subset_1.html#M1">Element</a> of  <a href="numbers.html#K2">COMPLEX</a> ;<br/><b>let </b><font color="Maroon">s1</font> be    <a href="subset_1.html#M1">Element</a> of  <a href="numbers.html#K2">COMPLEX</a> ;<br/><b>let </b><font color="Maroon">s2</font> be    <a href="subset_1.html#M1">Element</a> of  <a href="numbers.html#K2">COMPLEX</a> ;<br/><b>let </b><font color="Maroon">s3</font> be    <a href="subset_1.html#M1">Element</a> of  <a href="numbers.html#K2">COMPLEX</a> ;<br/>











<b>assume </b><a NAME="E1:23"/><i><font color="Green">E46</font></i>: 
for <font color="Olive">z</font> being   <a href="subset_1.html#M1">Element</a> of  <a href="numbers.html#K2">COMPLEX</a>  holds   <a href="polyeq_1.html#K3">Polynom</a> <font color="Maroon">z1</font>,<font color="Maroon">z2</font>,<font color="Maroon">z3</font>,<font color="Olive">z</font> <a href="hidden.html#R1">=</a>  <a href="polyeq_1.html#K3">Polynom</a> <font color="Maroon">s1</font>,<font color="Maroon">s2</font>,<font color="Maroon">s3</font>,<font color="Olive">z</font>
 ;<br/>

<a NAME="E2:23"/><b>then </b><i><font color="Green">E47</font></i>: 
 <a href="polyeq_1.html#K3">Polynom</a> <font color="Maroon">z1</font>,<font color="Maroon">z2</font>,<font color="Maroon">z3</font>,<a href="complex1.html#K5">0c</a>  <a href="hidden.html#R1">=</a>  <a href="polyeq_1.html#K3">Polynom</a> <font color="Maroon">s1</font>,<font color="Maroon">s2</font>,<font color="Maroon">s3</font>,<a href="complex1.html#K5">0c</a> 
 
;<br/>
<a NAME="E3:23"/><i><font color="Green">E48</font></i>: 
 <a href="polyeq_1.html#K3">Polynom</a> <font color="Maroon">z1</font>,<font color="Maroon">z2</font>,<font color="Maroon">z3</font>,<a href="complex1.html#K6">1r</a>  <a href="hidden.html#R1">=</a>  <a href="polyeq_1.html#K3">Polynom</a> <font color="Maroon">s1</font>,<font color="Maroon">s2</font>,<font color="Maroon">s3</font>,<a href="complex1.html#K6">1r</a> 
 
<b>by </b><i/>;<br/>
<a NAME="E4:23"/>
 <a href="polyeq_1.html#K3">Polynom</a> <font color="Maroon">z1</font>,<font color="Maroon">z2</font>,<font color="Maroon">z3</font>,<span class="p1">(<span class="default"><a href="complex1.html#K10">-</a> <a href="complex1.html#K6">1r</a> </span>)</span> <a href="hidden.html#R1">=</a>  <a href="polyeq_1.html#K3">Polynom</a> <font color="Maroon">s1</font>,<font color="Maroon">s2</font>,<font color="Maroon">s3</font>,<span class="p1">(<span class="default"><a href="complex1.html#K10">-</a> <a href="complex1.html#K6">1r</a> </span>)</span>
 
<b>by </b><i/>;<br/>
<b>hence </b><a NAME="E5:23"/>
( <font color="Maroon">z1</font> <a href="hidden.html#R1">=</a> <font color="Maroon">s1</font> &amp; <font color="Maroon">z2</font> <a href="hidden.html#R1">=</a> <font color="Maroon">s2</font> &amp; <font color="Maroon">z3</font> <a href="hidden.html#R1">=</a> <font color="Maroon">s3</font> )
 <b>by </b><i>, , <a class="ref" href="complex1.html#D6">COMPLEX1:def 6</a>, <a class="ref" href="complex1.html#D7">COMPLEX1:def 7</a></i>;<br/>


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