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<b>let </b><font color="Maroon">M</font> be   <a href="matrix_1.html#NM1">Matrix</a> of <a href="numbers.html#K2">COMPLEX</a> ;<br/>

<b>assume </b><a NAME="E1:65"/><i><font color="Green">E35</font></i>: 
 <a href="finseq_1.html#K3">len</a> <font color="Maroon">M</font> <a href="xxreal_0.html#NR4" target="_self">&gt;</a> 0
 ;<br/>

 <a href="matrixc1.html#K13" target="_self">SumAll</a> <font color="Maroon">M</font> = 
 <a href="matrixc1.html#K6" target="_self">Sum</a> <span class="p1">(<span class="default"><a href="matrixc1.html#K12" target="_self">ColSum</a> <font color="Maroon">M</font></span>)</span>
<b>by </b><i><a class="ref" href="matrixc1.html#T4" target="_self">Th4</a>, </i>
<br/>.= 
 <a href="matrixc1.html#K13" target="_self">SumAll</a> <span class="p1">(<span class="default"><font color="Maroon">M</font> <a href="matrix_1.html#K4">@</a> </span>)</span>
<b>by </b><i/>
;<br/>
<b>hence </b><a NAME="E3:65"/>
 <a href="matrixc1.html#K13" target="_self">SumAll</a> <font color="Maroon">M</font> <a href="hidden.html#R1">=</a>  <a href="matrixc1.html#K13" target="_self">SumAll</a> <span class="p1">(<span class="default"><font color="Maroon">M</font> <a href="matrix_1.html#K4">@</a> </span>)</span>
 ;<br/>


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