<?xml version="1.0"?>
<div class="add">

<a NAME="E1:2"/>
0 <a href="xcmplx_0.html#K2">+</a> <span class="p1">(<span class="default"><a href="xcmplx_0.html#K4">-</a> 0</span>)</span> <a href="hidden.html#R1">=</a>  <a href="xcmplx_0.html#K4">-</a> 0
 
<b>by </b><i><a class="ref" href="arithm.html#T1" target="_self">Th1</a></i>;<br/>
<b>hence </b><a NAME="E2:2"/>
 <a href="xcmplx_0.html#K4">-</a> 0 <a href="hidden.html#R1">=</a> 0
 <b>by </b><i><a class="ref" href="xcmplx_0.html#D6">XCMPLX_0:def 6</a></i>;<br/>


</div>
