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<b>reconsider </b><font color="Maroon">c<sub>1</sub></font> =  <a href="finseq_2.html#K1">idseq</a> 2 as  <a href="funct_1.html#V2">one-to-one</a> <a href="finseq_1.html#V1">FinSequence-like</a> <a href="funct_2.html#NM1">Function</a> of  <a href="setwop_2.html#K2">Seg</a> 2, <a href="setwop_2.html#K2">Seg</a> 2 ;<br/>
<a NAME="E2:7"/>
( <font color="Maroon">c<sub>1</sub></font> <a href="funct_1.html#K1">.</a> 1 <a href="hidden.html#R1">=</a> <span class="p1">(<span class="default"><a href="finseq_5.html#K3">Rev</a> <font color="Maroon">c<sub>1</sub></font></span>)</span> <a href="funct_1.html#K1">.</a> <span class="p1">(<span class="default"><a href="finseq_1.html#K3">len</a> <font color="Maroon">c<sub>1</sub></font></span>)</span> &amp; <font color="Maroon">c<sub>1</sub></font> <a href="funct_1.html#K1">.</a> <span class="p1">(<span class="default"><a href="finseq_1.html#K3">len</a> <font color="Maroon">c<sub>1</sub></font></span>)</span> <a href="hidden.html#R1">=</a> <span class="p1">(<span class="default"><a href="finseq_5.html#K3">Rev</a> <font color="Maroon">c<sub>1</sub></font></span>)</span> <a href="funct_1.html#K1">.</a> 1 )
 
<b>by </b><i><a class="ref" href="finseq_5.html#T65">FINSEQ_5:65</a></i>;<br/>
<a NAME="E3:7"/><b>then </b><i><font color="Green">E8</font></i>: 
( <span class="p1">(<span class="default"><a href="finseq_2.html#K1">idseq</a> 2</span>)</span> <a href="funct_1.html#K1">.</a> 1 <a href="hidden.html#R1">=</a> <span class="p1">(<span class="default"><a href="finseq_5.html#K3">Rev</a> <span class="p2">(<span class="default"><a href="finseq_2.html#K1">idseq</a> 2</span>)</span></span>)</span> <a href="funct_1.html#K1">.</a> 2 &amp; <font color="Maroon">c<sub>1</sub></font> <a href="funct_1.html#K1">.</a> 2 <a href="hidden.html#R1">=</a> <span class="p1">(<span class="default"><a href="finseq_5.html#K3">Rev</a> <font color="Maroon">c<sub>1</sub></font></span>)</span> <a href="funct_1.html#K1">.</a> 1 )
 
<b>by </b><i><a class="ref" href="finseq_2.html#T55">FINSEQ_2:55</a></i>;<br/>
<a NAME="E4:7"/><i><font color="Green">E9</font></i>: 
(  <a href="setwop_2.html#K3">dom</a> <span class="p1">(<span class="default"><a href="finseq_5.html#K3">Rev</a> <font color="Maroon">c<sub>1</sub></font></span>)</span> <a href="hidden.html#R1">=</a>  <a href="setwop_2.html#K3">dom</a> <font color="Maroon">c<sub>1</sub></font> &amp;  <a href="relat_1.html#K2">rng</a> <span class="p1">(<span class="default"><a href="finseq_5.html#K3">Rev</a> <font color="Maroon">c<sub>1</sub></font></span>)</span> <a href="hidden.html#R1">=</a>  <a href="relat_1.html#K2">rng</a> <font color="Maroon">c<sub>1</sub></font> )
 
<b>by </b><i><a class="ref" href="finseq_5.html#T60">FINSEQ_5:60</a></i>;<br/>
<a NAME="E5:7"/><b>then </b><i><font color="Green">E10</font></i>: 
 <a href="setwop_2.html#K3">dom</a> <span class="p1">(<span class="default"><a href="finseq_5.html#K3">Rev</a> <font color="Maroon">c<sub>1</sub></font></span>)</span> <a href="hidden.html#R1">=</a>  <a href="setwop_2.html#K2">Seg</a> 2
 
<b>by </b><i><a class="ref" href="relat_1.html#T71">RELAT_1:71</a></i>;<br/>
<a NAME="E6:7"/><b>then </b>
1 <a href="hidden.html#R2">in</a>  <a href="setwop_2.html#K3">dom</a> <font color="Maroon">c<sub>1</sub></font>
 
<b>by </b><i><a class="txt" href="matrix_9.html#E4:7"><i><font color="Green">E9</font></i></a></i>;<br/>
<a NAME="E7:7"/><b>then </b><i><font color="Green">E11</font></i>: 
<span class="p1">(<span class="default"><a href="finseq_2.html#K1">idseq</a> 2</span>)</span> <a href="funct_1.html#K1">.</a> 1 <a href="hidden.html#R1">=</a> 1
 
<b>by </b><i><a class="txt" href="matrix_9.html#E5:7"><i><font color="Green">E10</font></i></a>, <a class="txt" href="matrix_9.html#E4:7"><i><font color="Green">E9</font></i></a>, <a class="ref" href="funct_1.html#T35">FUNCT_1:35</a></i>;<br/>
<a NAME="E8:7"/>
2 <a href="hidden.html#R2">in</a>  <a href="setwop_2.html#K3">dom</a> <font color="Maroon">c<sub>1</sub></font>
 
<b>by </b><i><a class="txt" href="matrix_9.html#E4:7"><i><font color="Green">E9</font></i></a>, <a class="txt" href="matrix_9.html#E5:7"><i><font color="Green">E10</font></i></a></i>;<br/>
<b>hence </b><a NAME="E9:7"/>
( <span class="p1">(<span class="default"><a href="finseq_5.html#K3">Rev</a> <span class="p2">(<span class="default"><a href="finseq_2.html#K1">idseq</a> 2</span>)</span></span>)</span> <a href="funct_1.html#K1">.</a> 1 <a href="hidden.html#R1">=</a> 2 &amp; <span class="p1">(<span class="default"><a href="finseq_5.html#K3">Rev</a> <span class="p2">(<span class="default"><a href="finseq_2.html#K1">idseq</a> 2</span>)</span></span>)</span> <a href="funct_1.html#K1">.</a> 2 <a href="hidden.html#R1">=</a> 1 )
 <b>by </b><i><a class="txt" href="matrix_9.html#E3:7"><i><font color="Green">E8</font></i></a>, <a class="txt" href="matrix_9.html#E7:7"><i><font color="Green">E11</font></i></a>, <a class="txt" href="matrix_9.html#E5:7"><i><font color="Green">E10</font></i></a>, <a class="txt" href="matrix_9.html#E4:7"><i><font color="Green">E9</font></i></a>, <a class="ref" href="funct_1.html#T35">FUNCT_1:35</a></i>;<br/>


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