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<b>reconsider </b><font color="Maroon" title="c1">f</font> = <span class="p1"><a href="finseq_4.html#K3" title="FINSEQ_4:func.3">&lt;*</a><span class="default">3,2,1</span><a href="finseq_4.html#K3" title="FINSEQ_4:func.3">*&gt;</a></span> as   <a href="funct_2.html#NM2" title="FUNCT_2:NM.2">Permutation</a> of  <a href="finseq_1.html#K2" title="FINSEQ_1:func.2">Seg</a> 3 <b>by </b><i><a class="ref" href="matrix_9.html#T27" target="_self" title="MATRIX_9:th.27">Th27</a>, <a class="ref" href="matrix_2.html#D11" title="MATRIX_2:def.11">MATRIX_2:def 11</a></i>;<br/>
<a NAME="E2:56_1_1"/>
for <font color="Olive" title="b1">l</font> being  <a href="struct_0.html#NM7" title="STRUCT_0:NM.7">FinSequence</a> of <span class="p1">(<span class="default"><a href="matrix_2.html#K13" title="MATRIX_2:func.13">Group_of_Perm</a> 3</span>)</span>  holds <br/>(  not <span class="p1">(<span class="default"><a href="finseq_1.html#K3" title="FINSEQ_1:func.3">len</a> <font color="Olive" title="b1">l</font></span>)</span> <a href="nat_d.html#K4" title="NAT_D:func.4">mod</a> 2 <a href="hidden.html#R1" title="HIDDEN:pred.1">=</a>  <a href="numbers.html#K6" title="NUMBERS:func.6">0</a>  or  not <font color="Maroon" title="c1">f</font> <a href="hidden.html#R1" title="HIDDEN:pred.1">=</a>  <a href="group_4.html#K3" title="GROUP_4:func.3">Product</a> <font color="Olive" title="b1">l</font> or  ex <font color="Olive" title="b2">i</font> being  <a href="nat_1.html#NM1" title="NAT_1:NM.1">Nat</a> st <br/>( <font color="Olive" title="b2">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> <font color="Olive" title="b1">l</font> &amp; ( for <font color="Olive" title="b3">q</font> being   <a href="matrix_2.html#M3" title="MATRIX_2:mode.3">Element</a> of  <a href="matrix_2.html#K12" title="MATRIX_2:func.12">Permutations</a> 3  holds <br/>(  not <font color="Olive" title="b1">l</font> <a href="funct_1.html#K1" title="FUNCT_1:func.1">.</a> <font color="Olive" title="b2">i</font> <a href="hidden.html#R1" title="HIDDEN:pred.1">=</a> <font color="Olive" title="b3">q</font> or  not <font color="Olive" title="b3">q</font> <a href="matrix_2.html#NR1" title="MATRIX_2:NR.1">is_transposition</a>  ) ) ) )
 
<b>by </b><i><a class="txt" href="matrix_9.html#E33"><i><font color="Green" title="E27">Lm4</font></i></a>, <a class="txt" href="matrix_9.html#E53"><i><font color="Green" title="E44">Lm10</font></i></a></i>;<br/>
<a NAME="E3:56_1_1"/><b>then </b>
not <font color="Maroon" title="c1">f</font> is <a href="matrix_2.html#V3" title="MATRIX_2:attr.3">even</a>
 
<b>by </b><i><a class="ref" href="matrix_2.html#D15" title="MATRIX_2:def.15">MATRIX_2:def 15</a></i>;<br/>
<b>hence </b><a NAME="E4:56_1_1"/>
not for <font color="Olive">b<sub>1</sub></font> being  <a href="funct_2.html#NM2" title="FUNCT_2:NM.2">Permutation</a> of  <a href="finseq_1.html#K2" title="FINSEQ_1:func.2">Seg</a> 3 holds  <font color="Olive">b<sub>1</sub></font> is <a href="matrix_2.html#V3" title="MATRIX_2:attr.3">even</a>
 ;<br/>


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