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

<a NAME="E1:6_1_1"/>
(  <a href="matrix_1.html#K1">width</a> <font color="Maroon">M1</font> <a href="hidden.html#R1">=</a> <font color="Maroon">n</font> &amp;  <a href="matrix_1.html#K1">width</a> <font color="Maroon">M2</font> <a href="hidden.html#R1">=</a> <font color="Maroon">n</font> &amp;  <a href="finseq_1.html#K3">len</a> <font color="Maroon">M1</font> <a href="hidden.html#R1">=</a> <font color="Maroon">n</font> &amp;  <a href="finseq_1.html#K3">len</a> <font color="Maroon">M2</font> <a href="hidden.html#R1">=</a> <font color="Maroon">n</font> )
 
<b>by </b><i><a class="ref" href="matrix_1.html#T25">MATRIX_1:25</a></i>;<br/>
<a NAME="E2:6_1_1"/><b>then </b>
(  <a href="finseq_1.html#K3">len</a> <span class="p1">(<span class="default"><font color="Maroon">M1</font> <a href="matrix10.html#K3" target="_self">+</a> <span class="p2">(<span class="default"><a href="matrix10.html#K2" target="_self">-</a> <font color="Maroon">M2</font></span>)</span></span>)</span> <a href="hidden.html#R1">=</a>  <a href="finseq_1.html#K3">len</a> <font color="Maroon">M1</font> &amp;  <a href="matrix_1.html#K1">width</a> <span class="p1">(<span class="default"><font color="Maroon">M1</font> <a href="matrix10.html#K3" target="_self">+</a> <span class="p2">(<span class="default"><a href="matrix10.html#K2" target="_self">-</a> <font color="Maroon">M2</font></span>)</span></span>)</span> <a href="hidden.html#R1">=</a>  <a href="matrix_1.html#K1">width</a> <font color="Maroon">M2</font> )
 
<b>by </b><i><a class="ref" href="matrix_3.html#D3">MATRIX_3:def 3</a></i>;<br/>
<b>hence </b><a NAME="E3:6_1_1"/>
<font color="Maroon">M1</font> <a href="matrixr1.html#K5">-</a> <font color="Maroon">M2</font> is   <a href="matrix_1.html#NM3">Matrix</a> of <font color="Maroon">n</font>, <a href="numbers.html#K1">REAL</a> 
 <b>by </b><i><a class="ref" href="matrix_4.html#D1">MATRIX_4:def 1</a></i>;<br/>


</div>
