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<b>let </b><font color="Maroon">c<sub>1</sub></font> be   <a href="nat_1.html#NM1">Nat</a>;<br/><b>let </b><font color="Maroon">c<sub>2</sub></font> be    <a href="finseq_2.html#M2">Element</a> of  <a href="complsp1.html#K8" target="_self">COMPLEX</a> <font color="Maroon">c<sub>1</sub></font>;<br/>



<b>thus </b><a NAME="E1:23"/>
<font color="Maroon">c<sub>2</sub></font> <a href="complsp1.html#K9" target="_self">+</a> <span class="p1">(<span class="default"><a href="complsp1.html#K12" target="_self">-</a> <font color="Maroon">c<sub>2</sub></font></span>)</span> <a href="hidden.html#R1">=</a>  <a href="complsp1.html#K11" target="_self">0c</a> <font color="Maroon">c<sub>1</sub></font>
 <b>by </b><i><a class="txt" href="complsp1.html#E48"><i><font color="Green">Lemma23</font></i></a></i>;<br/>

<b>hence </b><a NAME="E2:23"/>
<span class="p1">(<span class="default"><a href="complsp1.html#K12" target="_self">-</a> <font color="Maroon">c<sub>2</sub></font></span>)</span> <a href="complsp1.html#K9" target="_self">+</a> <font color="Maroon">c<sub>2</sub></font> <a href="hidden.html#R1">=</a>  <a href="complsp1.html#K11" target="_self">0c</a> <font color="Maroon">c<sub>1</sub></font>
 <b>by </b><i><a class="ref" href="complsp1.html#T25" target="_self">Th25</a></i>;<br/>


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