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<b>set </b><font color="Maroon" title="c4">M</font> =  <a href="matrixj1.html#K24" title="MATRIXJ1:func.24">mlt</a> <font color="Maroon" title="c3">p</font>,<font color="Maroon" title="c2">R</font>;<br/>
<div><a class="txt" onclick="hs2(this)" href="javascript:()" title="96_1_1_1"><b>now </b></a><div class="add"><b>let </b><font color="Maroon" title="c5">i</font> be   <a href="nat_1.html#NM1" title="NAT_1:NM.1">Nat</a>; <a class="txt" onclick="hs(this)" href="javascript:()"><i><font color="Red">::  thesis: </font></i></a><span class="hide"> ( <font color="Maroon" title="c5">i</font> <a href="hidden.html#R2" title="HIDDEN:pred.2">in</a>  <a href="finseq_1.html#K4" title="FINSEQ_1:func.4">dom</a> <span class="p1">(<span class="default"><a href="matrixj1.html#K24" title="MATRIXJ1:func.24">mlt</a> <font color="Maroon" title="c3">p</font>,<font color="Maroon" title="c2">R</font></span>)</span> implies  ex <font color="Olive" title="b1">n</font> being  <a href="nat_1.html#NM1" title="NAT_1:NM.1">Nat</a> st <span class="p1">(<span class="default"><a href="matrixj1.html#K24" title="MATRIXJ1:func.24">mlt</a> <font color="Maroon" title="c3">p</font>,<font color="Maroon" title="c2">R</font></span>)</span> <a href="matrixj1.html#K2" title="MATRIXJ1:func.2">.</a> <font color="Maroon" title="c5">i</font> is   <a href="matrix_1.html#NM5" title="MATRIX_1:NM.5">Matrix</a> of <font color="Olive" title="b1">n</font>,<font color="Maroon" title="c1">K</font> )</span><br/><b>assume </b><a NAME="E1:96_1_1_1"/><i><font color="Green" title="E62">A1</font></i>: 
<font color="Maroon" title="c5">i</font> <a href="hidden.html#R2" title="HIDDEN:pred.2">in</a>  <a href="finseq_1.html#K4" title="FINSEQ_1:func.4">dom</a> <span class="p1">(<span class="default"><a href="matrixj1.html#K24" title="MATRIXJ1:func.24">mlt</a> <font color="Maroon" title="c3">p</font>,<font color="Maroon" title="c2">R</font></span>)</span>
 ; <a class="txt" onclick="hs(this)" href="javascript:()"><i><font color="Red">::  thesis: </font></i></a><span class="hide">  ex <font color="Olive" title="b1">n</font> being  <a href="nat_1.html#NM1" title="NAT_1:NM.1">Nat</a> st <span class="p1">(<span class="default"><a href="matrixj1.html#K24" title="MATRIXJ1:func.24">mlt</a> <font color="Maroon" title="c3">p</font>,<font color="Maroon" title="c2">R</font></span>)</span> <a href="matrixj1.html#K2" title="MATRIXJ1:func.2">.</a> <font color="Maroon" title="c5">i</font> is   <a href="matrix_1.html#NM5" title="MATRIX_1:NM.5">Matrix</a> of <font color="Olive" title="b1">n</font>,<font color="Maroon" title="c1">K</font></span><br/><b>consider </b><font color="Maroon" title="c6">n</font> being   <a href="nat_1.html#NM1" title="NAT_1:NM.1">Nat</a><b> such that </b><br/><a NAME="E3:96_1_1_1"/><i><font color="Green" title="E63">A2</font></i>: 
<font color="Maroon" title="c2">R</font> <a href="matrixj1.html#K14" title="MATRIXJ1:func.14">.</a> <font color="Maroon" title="c5">i</font> is   <a href="matrix_1.html#NM5" title="MATRIX_1:NM.5">Matrix</a> of <font color="Maroon" title="c6">n</font>,<font color="Maroon" title="c1">K</font>
 ;<br/><b>take </b><font color="Maroon" title="c7">n</font> = <font color="Maroon" title="c6">n</font>; <a class="txt" onclick="hs(this)" href="javascript:()"><i><font color="Red">::  thesis: </font></i></a><span class="hide"> <span class="p1">(<span class="default"><a href="matrixj1.html#K24" title="MATRIXJ1:func.24">mlt</a> <font color="Maroon" title="c3">p</font>,<font color="Maroon" title="c2">R</font></span>)</span> <a href="matrixj1.html#K2" title="MATRIXJ1:func.2">.</a> <font color="Maroon" title="c5">i</font> is   <a href="matrix_1.html#NM5" title="MATRIX_1:NM.5">Matrix</a> of <font color="Maroon" title="c7">n</font>,<font color="Maroon" title="c1">K</font></span><br/><a NAME="E4:96_1_1_1"/>
(  <a href="finseq_1.html#K3" title="FINSEQ_1:func.3">len</a> <span class="p1">(<span class="default"><font color="Maroon" title="c2">R</font> <a href="matrixj1.html#K14" title="MATRIXJ1:func.14">.</a> <font color="Maroon" title="c5">i</font></span>)</span> <a href="hidden.html#R1" title="HIDDEN:pred.1">=</a> <font color="Maroon" title="c7">n</font> &amp; <span class="p1">(<span class="default"><a href="matrixj1.html#K24" title="MATRIXJ1:func.24">mlt</a> <font color="Maroon" title="c3">p</font>,<font color="Maroon" title="c2">R</font></span>)</span> <a href="matrixj1.html#K2" title="MATRIXJ1:func.2">.</a> <font color="Maroon" title="c5">i</font> <a href="hidden.html#R1" title="HIDDEN:pred.1">=</a> <span class="p1">(<span class="default"><font color="Maroon" title="c3">p</font> <a href="partfun1.html#K7" title="PARTFUN1:func.7">/.</a> <font color="Maroon" title="c5">i</font></span>)</span> <a href="matrix13.html#K2" title="MATRIX13:func.2">*</a> <span class="p1">(<span class="default"><font color="Maroon" title="c2">R</font> <a href="matrixj1.html#K14" title="MATRIXJ1:func.14">.</a> <font color="Maroon" title="c5">i</font></span>)</span> )
 <b>by </b><i><a class="txt" href="matrixj1.html#E1:96_1_1_1"><i><font color="Green" title="E62">A1</font></i></a>, <a class="txt" href="matrixj1.html#E3:96_1_1_1"><i><font color="Green" title="E63">A2</font></i></a>, <a class="ref" href="matrixj1.html#D9" target="_self" title="MATRIXJ1:def.9">Def9</a>, <a class="ref" href="matrix_1.html#T25" title="MATRIX_1:th.25">MATRIX_1:25</a></i>;<br/><b>hence </b><a NAME="E5:96_1_1_1"/>
<span class="p1">(<span class="default"><a href="matrixj1.html#K24" title="MATRIXJ1:func.24">mlt</a> <font color="Maroon" title="c3">p</font>,<font color="Maroon" title="c2">R</font></span>)</span> <a href="matrixj1.html#K2" title="MATRIXJ1:func.2">.</a> <font color="Maroon" title="c5">i</font> is   <a href="matrix_1.html#NM5" title="MATRIX_1:NM.5">Matrix</a> of <font color="Maroon" title="c7">n</font>,<font color="Maroon" title="c1">K</font>
 ; <a class="txt" onclick="hs(this)" href="javascript:()"><i><font color="Red">::  thesis: </font></i></a><span class="hide"> verum</span><br/></div><b>end;</b></div>
<b>hence </b><a NAME="E2:96_1_1"/>
 <a href="matrixj1.html#K24" title="MATRIXJ1:func.24">mlt</a> <font color="Maroon" title="c3">p</font>,<font color="Maroon" title="c2">R</font> is   <a href="matrixj1.html#NM4" title="MATRIXJ1:NM.4">FinSequence_of_Square-Matrix</a> of <font color="Maroon" title="c1">K</font>
 <b>by </b><i><a class="ref" href="matrixj1.html#D6" target="_self" title="MATRIXJ1:def.6">Def6</a></i>; <a class="txt" onclick="hs(this)" href="javascript:()"><i><font color="Red">::  thesis: </font></i></a><span class="hide"> verum</span><br/>


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