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<div><span class="kw">theorem </span><a NAME="T28"><span class="comment"><font color="firebrick">:: COMPLEX1:28</font></span><br/></a><div class="add"><a href="numbers.html#K5" title="NUMBERS:func.5">0</a> <a href="complex1.html#K8" title="COMPLEX1:func.8">*'</a>  <a href="hidden.html#R1" title="HIDDEN:pred.1">=</a>  <a href="numbers.html#K5" title="NUMBERS:func.5">0</a>  <span class="kw">by</span> <span class="lab"><a class="ref" href="complex1.html#T4" target="_self" onmouseover="rs('complex1/T4')" onmouseout="rh()">Th4</a></span>;<br/></div></div>
