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

<div><a class="txt" onclick="hs2(this)" href="javascript:()" title="28_1"><b>now </b></a><div class="add"><b>let </b><font color="Maroon">p</font> be    <a href="hidden.html#M1">set</a> ;<br/><b>assume </b><a NAME="E1:28_1"/>
<font color="Maroon">p</font> <a href="hidden.html#R2">in</a>  <a href="matrix_2.html#K12">Permutations</a> 3
 ;<br/><b>then reconsider </b><font color="Maroon">q</font> = <font color="Maroon">p</font> as   <a href="funct_2.html#NM2">Permutation</a> of  <a href="setwop_2.html#K2">Seg</a> 3 <b>by </b><i><a class="ref" href="matrix_2.html#D11">MATRIX_2:def 11</a></i>;<br/><a NAME="E3:28_1"/><i><font color="Green">E31</font></i>: 
( <font color="Maroon">q</font> is   <a href="funct_2.html#NM1">Function</a> of  <a href="setwop_2.html#K2">Seg</a> 3, <a href="setwop_2.html#K2">Seg</a> 3 &amp;  <a href="relat_1.html#K2">rng</a> <font color="Maroon">q</font> <a href="hidden.html#R1">=</a>  <a href="setwop_2.html#K2">Seg</a> 3 )
 <b>by </b><i><a class="ref" href="funct_2.html#D3">FUNCT_2:def 3</a></i>;<br/><a NAME="E4:28_1"/><i><font color="Green">E34</font></i>: 
 <a href="relat_1.html#K1">dom</a> <font color="Maroon">q</font> <a href="hidden.html#R1">=</a>  <a href="setwop_2.html#K2">Seg</a> 3
 <b>by </b><i><a class="ref" href="funct_2.html#T67">FUNCT_2:67</a></i>;<br/><a NAME="E5:28_1"/><i><font color="Green">E37</font></i>: 
( 1 <a href="hidden.html#R2">in</a>  <a href="setwop_2.html#K2">Seg</a> 3 &amp; 2 <a href="hidden.html#R2">in</a>  <a href="setwop_2.html#K2">Seg</a> 3 &amp; 3 <a href="hidden.html#R2">in</a>  <a href="setwop_2.html#K2">Seg</a> 3 )
 ;<br/><a NAME="E6:28_1"/>
<font color="Maroon">q</font> <a href="funct_1.html#K1">.</a> 1 <a href="hidden.html#R2">in</a>  <a href="setwop_2.html#K2">Seg</a> 3
 <b>by </b><i>, <a class="ref" href="funct_2.html#T6">FUNCT_2:6</a>, </i>;<br/><a NAME="E7:28_1"/><b>then </b><i><font color="Green">E38</font></i>: 
( <font color="Maroon">q</font> <a href="funct_1.html#K1">.</a> 1 <a href="hidden.html#R1">=</a> 1 or <font color="Maroon">q</font> <a href="funct_1.html#K1">.</a> 1 <a href="hidden.html#R1">=</a> 2 or <font color="Maroon">q</font> <a href="funct_1.html#K1">.</a> 1 <a href="hidden.html#R1">=</a> 3 )
 <b>by </b><i><a class="ref" href="enumset1.html#D1">ENUMSET1:def 1</a>, <a class="ref" href="finseq_3.html#T1">FINSEQ_3:1</a></i>;<br/><a NAME="E8:28_1"/>
<font color="Maroon">q</font> <a href="funct_1.html#K1">.</a> 2 <a href="hidden.html#R2">in</a>  <a href="setwop_2.html#K2">Seg</a> 3
 <b>by </b><i>, <a class="ref" href="funct_2.html#T6">FUNCT_2:6</a>, </i>;<br/><a NAME="E9:28_1"/><b>then </b><i><font color="Green">E39</font></i>: 
( <font color="Maroon">q</font> <a href="funct_1.html#K1">.</a> 2 <a href="hidden.html#R1">=</a> 1 or <font color="Maroon">q</font> <a href="funct_1.html#K1">.</a> 2 <a href="hidden.html#R1">=</a> 2 or <font color="Maroon">q</font> <a href="funct_1.html#K1">.</a> 2 <a href="hidden.html#R1">=</a> 3 )
 <b>by </b><i><a class="ref" href="enumset1.html#D1">ENUMSET1:def 1</a>, <a class="ref" href="finseq_3.html#T1">FINSEQ_3:1</a></i>;<br/><a NAME="E10:28_1"/>
<font color="Maroon">q</font> <a href="funct_1.html#K1">.</a> 3 <a href="hidden.html#R2">in</a>  <a href="setwop_2.html#K2">Seg</a> 3
 <b>by </b><i>, <a class="ref" href="funct_2.html#T6">FUNCT_2:6</a>, </i>;<br/><a NAME="E11:28_1"/><b>then </b><i><font color="Green">E40</font></i>: 
( <font color="Maroon">q</font> <a href="funct_1.html#K1">.</a> 3 <a href="hidden.html#R1">=</a> 1 or <font color="Maroon">q</font> <a href="funct_1.html#K1">.</a> 3 <a href="hidden.html#R1">=</a> 2 or <font color="Maroon">q</font> <a href="funct_1.html#K1">.</a> 3 <a href="hidden.html#R1">=</a> 3 )
 <b>by </b><i><a class="ref" href="enumset1.html#D1">ENUMSET1:def 1</a>, <a class="ref" href="finseq_3.html#T1">FINSEQ_3:1</a></i>;<br/><a NAME="E12:28_1"/>
( ( not <!--HUMANRECFAILED-->( <font color="Maroon">q</font> <a href="funct_1.html#K1">.</a> 1 <a href="hidden.html#R1">=</a> 1 &amp; <font color="Maroon">q</font> <a href="funct_1.html#K1">.</a> 2 <a href="hidden.html#R1">=</a> 2 &amp; <font color="Maroon">q</font> <a href="funct_1.html#K1">.</a> 3 <a href="hidden.html#R1">=</a> 3 ) &amp; not <!--HUMANRECFAILED-->( <font color="Maroon">q</font> <a href="funct_1.html#K1">.</a> 1 <a href="hidden.html#R1">=</a> 3 &amp; <font color="Maroon">q</font> <a href="funct_1.html#K1">.</a> 2 <a href="hidden.html#R1">=</a> 2 &amp; <font color="Maroon">q</font> <a href="funct_1.html#K1">.</a> 3 <a href="hidden.html#R1">=</a> 1 ) &amp; not <!--HUMANRECFAILED-->( <font color="Maroon">q</font> <a href="funct_1.html#K1">.</a> 1 <a href="hidden.html#R1">=</a> 1 &amp; <font color="Maroon">q</font> <a href="funct_1.html#K1">.</a> 2 <a href="hidden.html#R1">=</a> 3 &amp; <font color="Maroon">q</font> <a href="funct_1.html#K1">.</a> 3 <a href="hidden.html#R1">=</a> 2 ) &amp; not <!--HUMANRECFAILED-->( <font color="Maroon">q</font> <a href="funct_1.html#K1">.</a> 1 <a href="hidden.html#R1">=</a> 2 &amp; <font color="Maroon">q</font> <a href="funct_1.html#K1">.</a> 2 <a href="hidden.html#R1">=</a> 3 &amp; <font color="Maroon">q</font> <a href="funct_1.html#K1">.</a> 3 <a href="hidden.html#R1">=</a> 1 ) &amp; not <!--HUMANRECFAILED-->( <font color="Maroon">q</font> <a href="funct_1.html#K1">.</a> 1 <a href="hidden.html#R1">=</a> 2 &amp; <font color="Maroon">q</font> <a href="funct_1.html#K1">.</a> 2 <a href="hidden.html#R1">=</a> 1 &amp; <font color="Maroon">q</font> <a href="funct_1.html#K1">.</a> 3 <a href="hidden.html#R1">=</a> 3 ) &amp; not <!--HUMANRECFAILED-->( <font color="Maroon">q</font> <a href="funct_1.html#K1">.</a> 1 <a href="hidden.html#R1">=</a> 3 &amp; <font color="Maroon">q</font> <a href="funct_1.html#K1">.</a> 2 <a href="hidden.html#R1">=</a> 1 &amp; <font color="Maroon">q</font> <a href="funct_1.html#K1">.</a> 3 <a href="hidden.html#R1">=</a> 2 ) ) or <font color="Maroon">q</font> <a href="hidden.html#R1">=</a> <span class="p1"><a href="finseq_4.html#K3">&lt;*</a><span class="default">1,2,3</span><a href="finseq_4.html#K3">*&gt;</a></span> or <font color="Maroon">q</font> <a href="hidden.html#R1">=</a> <span class="p1"><a href="finseq_4.html#K3">&lt;*</a><span class="default">3,2,1</span><a href="finseq_4.html#K3">*&gt;</a></span> or <font color="Maroon">q</font> <a href="hidden.html#R1">=</a> <span class="p1"><a href="finseq_4.html#K3">&lt;*</a><span class="default">1,3,2</span><a href="finseq_4.html#K3">*&gt;</a></span> or <font color="Maroon">q</font> <a href="hidden.html#R1">=</a> <span class="p1"><a href="finseq_4.html#K3">&lt;*</a><span class="default">2,3,1</span><a href="finseq_4.html#K3">*&gt;</a></span> or <font color="Maroon">q</font> <a href="hidden.html#R1">=</a> <span class="p1"><a href="finseq_4.html#K3">&lt;*</a><span class="default">2,1,3</span><a href="finseq_4.html#K3">*&gt;</a></span> or <font color="Maroon">q</font> <a href="hidden.html#R1">=</a> <span class="p1"><a href="finseq_4.html#K3">&lt;*</a><span class="default">3,1,2</span><a href="finseq_4.html#K3">*&gt;</a></span> )
 <div><a class="txt" onclick="hs2(this)" href="javascript:()" title="28_1_1"><b>proof </b></a><div class="add">

<b>reconsider </b><font color="Maroon">q</font> = <font color="Maroon">q</font> as   <a href="finseq_1.html#NM1">FinSequence</a> <b>by </b><i>, <a class="ref" href="finseq_1.html#D2">FINSEQ_1:def 2</a></i>;<br/>
<a NAME="E2:28_1_1"/>
 <a href="finseq_1.html#K3">len</a> <font color="Maroon">q</font> <a href="hidden.html#R1">=</a> 3
 
<b>by </b><i>, <a class="ref" href="finseq_1.html#D3">FINSEQ_1:def 3</a></i>;<br/>
<b>hence </b><a NAME="E3:28_1_1"/>
( ( not <!--HUMANRECFAILED-->( <font color="Maroon">q</font> <a href="funct_1.html#K1">.</a> 1 <a href="hidden.html#R1">=</a> 1 &amp; <font color="Maroon">q</font> <a href="funct_1.html#K1">.</a> 2 <a href="hidden.html#R1">=</a> 2 &amp; <font color="Maroon">q</font> <a href="funct_1.html#K1">.</a> 3 <a href="hidden.html#R1">=</a> 3 ) &amp; not <!--HUMANRECFAILED-->( <font color="Maroon">q</font> <a href="funct_1.html#K1">.</a> 1 <a href="hidden.html#R1">=</a> 3 &amp; <font color="Maroon">q</font> <a href="funct_1.html#K1">.</a> 2 <a href="hidden.html#R1">=</a> 2 &amp; <font color="Maroon">q</font> <a href="funct_1.html#K1">.</a> 3 <a href="hidden.html#R1">=</a> 1 ) &amp; not <!--HUMANRECFAILED-->( <font color="Maroon">q</font> <a href="funct_1.html#K1">.</a> 1 <a href="hidden.html#R1">=</a> 1 &amp; <font color="Maroon">q</font> <a href="funct_1.html#K1">.</a> 2 <a href="hidden.html#R1">=</a> 3 &amp; <font color="Maroon">q</font> <a href="funct_1.html#K1">.</a> 3 <a href="hidden.html#R1">=</a> 2 ) &amp; not <!--HUMANRECFAILED-->( <font color="Maroon">q</font> <a href="funct_1.html#K1">.</a> 1 <a href="hidden.html#R1">=</a> 2 &amp; <font color="Maroon">q</font> <a href="funct_1.html#K1">.</a> 2 <a href="hidden.html#R1">=</a> 3 &amp; <font color="Maroon">q</font> <a href="funct_1.html#K1">.</a> 3 <a href="hidden.html#R1">=</a> 1 ) &amp; not <!--HUMANRECFAILED-->( <font color="Maroon">q</font> <a href="funct_1.html#K1">.</a> 1 <a href="hidden.html#R1">=</a> 2 &amp; <font color="Maroon">q</font> <a href="funct_1.html#K1">.</a> 2 <a href="hidden.html#R1">=</a> 1 &amp; <font color="Maroon">q</font> <a href="funct_1.html#K1">.</a> 3 <a href="hidden.html#R1">=</a> 3 ) &amp; not <!--HUMANRECFAILED-->( <font color="Maroon">q</font> <a href="funct_1.html#K1">.</a> 1 <a href="hidden.html#R1">=</a> 3 &amp; <font color="Maroon">q</font> <a href="funct_1.html#K1">.</a> 2 <a href="hidden.html#R1">=</a> 1 &amp; <font color="Maroon">q</font> <a href="funct_1.html#K1">.</a> 3 <a href="hidden.html#R1">=</a> 2 ) ) or <font color="Maroon">q</font> <a href="hidden.html#R1">=</a> <span class="p1"><a href="finseq_4.html#K3">&lt;*</a><span class="default">1,2,3</span><a href="finseq_4.html#K3">*&gt;</a></span> or <font color="Maroon">q</font> <a href="hidden.html#R1">=</a> <span class="p1"><a href="finseq_4.html#K3">&lt;*</a><span class="default">3,2,1</span><a href="finseq_4.html#K3">*&gt;</a></span> or <font color="Maroon">q</font> <a href="hidden.html#R1">=</a> <span class="p1"><a href="finseq_4.html#K3">&lt;*</a><span class="default">1,3,2</span><a href="finseq_4.html#K3">*&gt;</a></span> or <font color="Maroon">q</font> <a href="hidden.html#R1">=</a> <span class="p1"><a href="finseq_4.html#K3">&lt;*</a><span class="default">2,3,1</span><a href="finseq_4.html#K3">*&gt;</a></span> or <font color="Maroon">q</font> <a href="hidden.html#R1">=</a> <span class="p1"><a href="finseq_4.html#K3">&lt;*</a><span class="default">2,1,3</span><a href="finseq_4.html#K3">*&gt;</a></span> or <font color="Maroon">q</font> <a href="hidden.html#R1">=</a> <span class="p1"><a href="finseq_4.html#K3">&lt;*</a><span class="default">3,1,2</span><a href="finseq_4.html#K3">*&gt;</a></span> )
 <b>by </b><i><a class="ref" href="finseq_1.html#T62">FINSEQ_1:62</a></i>;<br/>


</div><b>end;</b></div><a NAME="E13:28_1"/><b>then </b>
( <font color="Maroon">p</font> <a href="hidden.html#R2">in</a> <span class="p1"><a href="tarski.html#K2">{</a><span class="default"><span class="p2"><a href="finseq_4.html#K3">&lt;*</a><span class="default">1,2,3</span><a href="finseq_4.html#K3">*&gt;</a></span>,<span class="p2"><a href="finseq_4.html#K3">&lt;*</a><span class="default">3,2,1</span><a href="finseq_4.html#K3">*&gt;</a></span></span><a href="tarski.html#K2">}</a></span> or <font color="Maroon">q</font> <a href="hidden.html#R2">in</a> <span class="p1"><a href="tarski.html#K2">{</a><span class="default"><span class="p2"><a href="finseq_4.html#K3">&lt;*</a><span class="default">1,3,2</span><a href="finseq_4.html#K3">*&gt;</a></span>,<span class="p2"><a href="finseq_4.html#K3">&lt;*</a><span class="default">2,3,1</span><a href="finseq_4.html#K3">*&gt;</a></span></span><a href="tarski.html#K2">}</a></span> or <font color="Maroon">q</font> <a href="hidden.html#R2">in</a> <span class="p1"><a href="tarski.html#K2">{</a><span class="default"><span class="p2"><a href="finseq_4.html#K3">&lt;*</a><span class="default">2,1,3</span><a href="finseq_4.html#K3">*&gt;</a></span>,<span class="p2"><a href="finseq_4.html#K3">&lt;*</a><span class="default">3,1,2</span><a href="finseq_4.html#K3">*&gt;</a></span></span><a href="tarski.html#K2">}</a></span> )
 <b>by </b><i>, <a class="ref" href="tarski.html#D2">TARSKI:def 2</a>, , , <a class="ref" href="funct_1.html#D8">FUNCT_1:def 8</a>, , </i>;<br/><a NAME="E14:28_1"/><b>then </b>
( <font color="Maroon">p</font> <a href="hidden.html#R2">in</a> <span class="p1"><a href="tarski.html#K2">{</a><span class="default"><span class="p2"><a href="finseq_4.html#K3">&lt;*</a><span class="default">1,2,3</span><a href="finseq_4.html#K3">*&gt;</a></span>,<span class="p2"><a href="finseq_4.html#K3">&lt;*</a><span class="default">3,2,1</span><a href="finseq_4.html#K3">*&gt;</a></span></span><a href="tarski.html#K2">}</a></span> or <font color="Maroon">q</font> <a href="hidden.html#R2">in</a> <span class="p1"><a href="tarski.html#K2">{</a><span class="default"><span class="p2"><a href="finseq_4.html#K3">&lt;*</a><span class="default">1,3,2</span><a href="finseq_4.html#K3">*&gt;</a></span>,<span class="p2"><a href="finseq_4.html#K3">&lt;*</a><span class="default">2,3,1</span><a href="finseq_4.html#K3">*&gt;</a></span></span><a href="tarski.html#K2">}</a></span> <a href="xboole_0.html#K2">\/</a> <span class="p1"><a href="tarski.html#K2">{</a><span class="default"><span class="p2"><a href="finseq_4.html#K3">&lt;*</a><span class="default">2,1,3</span><a href="finseq_4.html#K3">*&gt;</a></span>,<span class="p2"><a href="finseq_4.html#K3">&lt;*</a><span class="default">3,1,2</span><a href="finseq_4.html#K3">*&gt;</a></span></span><a href="tarski.html#K2">}</a></span> )
 <b>by </b><i><a class="ref" href="xboole_0.html#D2">XBOOLE_0:def 2</a></i>;<br/><a NAME="E15:28_1"/><b>then </b>
( <font color="Maroon">p</font> <a href="hidden.html#R2">in</a> <span class="p1"><a href="tarski.html#K2">{</a><span class="default"><span class="p2"><a href="finseq_4.html#K3">&lt;*</a><span class="default">1,2,3</span><a href="finseq_4.html#K3">*&gt;</a></span>,<span class="p2"><a href="finseq_4.html#K3">&lt;*</a><span class="default">3,2,1</span><a href="finseq_4.html#K3">*&gt;</a></span></span><a href="tarski.html#K2">}</a></span> or <font color="Maroon">q</font> <a href="hidden.html#R2">in</a> <span class="p1"><a href="enumset1.html#K2">{</a><span class="default"><span class="p2"><a href="finseq_4.html#K3">&lt;*</a><span class="default">1,3,2</span><a href="finseq_4.html#K3">*&gt;</a></span>,<span class="p2"><a href="finseq_4.html#K3">&lt;*</a><span class="default">2,3,1</span><a href="finseq_4.html#K3">*&gt;</a></span>,<span class="p2"><a href="finseq_4.html#K3">&lt;*</a><span class="default">2,1,3</span><a href="finseq_4.html#K3">*&gt;</a></span>,<span class="p2"><a href="finseq_4.html#K3">&lt;*</a><span class="default">3,1,2</span><a href="finseq_4.html#K3">*&gt;</a></span></span><a href="enumset1.html#K2">}</a></span> )
 <b>by </b><i><a class="ref" href="enumset1.html#T45">ENUMSET1:45</a></i>;<br/><a NAME="E16:28_1"/><b>then </b>
<font color="Maroon">p</font> <a href="hidden.html#R2">in</a> <span class="p1"><a href="tarski.html#K2">{</a><span class="default"><span class="p2"><a href="finseq_4.html#K3">&lt;*</a><span class="default">1,2,3</span><a href="finseq_4.html#K3">*&gt;</a></span>,<span class="p2"><a href="finseq_4.html#K3">&lt;*</a><span class="default">3,2,1</span><a href="finseq_4.html#K3">*&gt;</a></span></span><a href="tarski.html#K2">}</a></span> <a href="xboole_0.html#K2">\/</a> <span class="p1"><a href="enumset1.html#K2">{</a><span class="default"><span class="p2"><a href="finseq_4.html#K3">&lt;*</a><span class="default">1,3,2</span><a href="finseq_4.html#K3">*&gt;</a></span>,<span class="p2"><a href="finseq_4.html#K3">&lt;*</a><span class="default">2,3,1</span><a href="finseq_4.html#K3">*&gt;</a></span>,<span class="p2"><a href="finseq_4.html#K3">&lt;*</a><span class="default">2,1,3</span><a href="finseq_4.html#K3">*&gt;</a></span>,<span class="p2"><a href="finseq_4.html#K3">&lt;*</a><span class="default">3,1,2</span><a href="finseq_4.html#K3">*&gt;</a></span></span><a href="enumset1.html#K2">}</a></span>
 <b>by </b><i><a class="ref" href="xboole_0.html#D2">XBOOLE_0:def 2</a></i>;<br/><b>hence </b><a NAME="E17:28_1"/>
<font color="Maroon">p</font> <a href="hidden.html#R2">in</a> <span class="p1"><a href="enumset1.html#K4">{</a><span class="default"><span class="p2"><a href="finseq_4.html#K3">&lt;*</a><span class="default">1,2,3</span><a href="finseq_4.html#K3">*&gt;</a></span>,<span class="p2"><a href="finseq_4.html#K3">&lt;*</a><span class="default">3,2,1</span><a href="finseq_4.html#K3">*&gt;</a></span>,<span class="p2"><a href="finseq_4.html#K3">&lt;*</a><span class="default">1,3,2</span><a href="finseq_4.html#K3">*&gt;</a></span>,<span class="p2"><a href="finseq_4.html#K3">&lt;*</a><span class="default">2,3,1</span><a href="finseq_4.html#K3">*&gt;</a></span>,<span class="p2"><a href="finseq_4.html#K3">&lt;*</a><span class="default">2,1,3</span><a href="finseq_4.html#K3">*&gt;</a></span>,<span class="p2"><a href="finseq_4.html#K3">&lt;*</a><span class="default">3,1,2</span><a href="finseq_4.html#K3">*&gt;</a></span></span><a href="enumset1.html#K4">}</a></span>
 <b>by </b><i><a class="ref" href="enumset1.html#T52">ENUMSET1:52</a></i>;<br/></div><b>end;</b></div>
<a NAME="E2:28"/><b>then </b><i><font color="Green">E41</font></i>: 
 <a href="matrix_2.html#K12">Permutations</a> 3 <a href="tarski.html#R1">c=</a> <span class="p1"><a href="enumset1.html#K4">{</a><span class="default"><span class="p2"><a href="finseq_4.html#K3">&lt;*</a><span class="default">1,2,3</span><a href="finseq_4.html#K3">*&gt;</a></span>,<span class="p2"><a href="finseq_4.html#K3">&lt;*</a><span class="default">3,2,1</span><a href="finseq_4.html#K3">*&gt;</a></span>,<span class="p2"><a href="finseq_4.html#K3">&lt;*</a><span class="default">1,3,2</span><a href="finseq_4.html#K3">*&gt;</a></span>,<span class="p2"><a href="finseq_4.html#K3">&lt;*</a><span class="default">2,3,1</span><a href="finseq_4.html#K3">*&gt;</a></span>,<span class="p2"><a href="finseq_4.html#K3">&lt;*</a><span class="default">2,1,3</span><a href="finseq_4.html#K3">*&gt;</a></span>,<span class="p2"><a href="finseq_4.html#K3">&lt;*</a><span class="default">3,1,2</span><a href="finseq_4.html#K3">*&gt;</a></span></span><a href="enumset1.html#K4">}</a></span>
 
<b>by </b><i><a class="ref" href="tarski.html#D3">TARSKI:def 3</a></i>;<br/>
<div><a class="txt" onclick="hs2(this)" href="javascript:()" title="28_2"><b>now </b></a><div class="add"><b>let </b><font color="Maroon">x</font> be    <a href="hidden.html#M1">set</a> ;<br/><b>assume </b><a NAME="E1:28_2"/>
<font color="Maroon">x</font> <a href="hidden.html#R2">in</a> <span class="p1"><a href="enumset1.html#K4">{</a><span class="default"><span class="p2"><a href="finseq_4.html#K3">&lt;*</a><span class="default">1,2,3</span><a href="finseq_4.html#K3">*&gt;</a></span>,<span class="p2"><a href="finseq_4.html#K3">&lt;*</a><span class="default">3,2,1</span><a href="finseq_4.html#K3">*&gt;</a></span>,<span class="p2"><a href="finseq_4.html#K3">&lt;*</a><span class="default">1,3,2</span><a href="finseq_4.html#K3">*&gt;</a></span>,<span class="p2"><a href="finseq_4.html#K3">&lt;*</a><span class="default">2,3,1</span><a href="finseq_4.html#K3">*&gt;</a></span>,<span class="p2"><a href="finseq_4.html#K3">&lt;*</a><span class="default">2,1,3</span><a href="finseq_4.html#K3">*&gt;</a></span>,<span class="p2"><a href="finseq_4.html#K3">&lt;*</a><span class="default">3,1,2</span><a href="finseq_4.html#K3">*&gt;</a></span></span><a href="enumset1.html#K4">}</a></span>
 ;<br/><a NAME="E2:28_2"/><b>then </b>
<font color="Maroon">x</font> <a href="hidden.html#R2">in</a> <span class="p1"><a href="tarski.html#K2">{</a><span class="default"><span class="p2"><a href="finseq_4.html#K3">&lt;*</a><span class="default">1,2,3</span><a href="finseq_4.html#K3">*&gt;</a></span>,<span class="p2"><a href="finseq_4.html#K3">&lt;*</a><span class="default">3,2,1</span><a href="finseq_4.html#K3">*&gt;</a></span></span><a href="tarski.html#K2">}</a></span> <a href="xboole_0.html#K2">\/</a> <span class="p1"><a href="enumset1.html#K2">{</a><span class="default"><span class="p2"><a href="finseq_4.html#K3">&lt;*</a><span class="default">1,3,2</span><a href="finseq_4.html#K3">*&gt;</a></span>,<span class="p2"><a href="finseq_4.html#K3">&lt;*</a><span class="default">2,3,1</span><a href="finseq_4.html#K3">*&gt;</a></span>,<span class="p2"><a href="finseq_4.html#K3">&lt;*</a><span class="default">2,1,3</span><a href="finseq_4.html#K3">*&gt;</a></span>,<span class="p2"><a href="finseq_4.html#K3">&lt;*</a><span class="default">3,1,2</span><a href="finseq_4.html#K3">*&gt;</a></span></span><a href="enumset1.html#K2">}</a></span>
 <b>by </b><i><a class="ref" href="enumset1.html#T52">ENUMSET1:52</a></i>;<br/><a NAME="E3:28_2"/><b>then </b>
( <font color="Maroon">x</font> <a href="hidden.html#R2">in</a> <span class="p1"><a href="tarski.html#K2">{</a><span class="default"><span class="p2"><a href="finseq_4.html#K3">&lt;*</a><span class="default">1,2,3</span><a href="finseq_4.html#K3">*&gt;</a></span>,<span class="p2"><a href="finseq_4.html#K3">&lt;*</a><span class="default">3,2,1</span><a href="finseq_4.html#K3">*&gt;</a></span></span><a href="tarski.html#K2">}</a></span> or <font color="Maroon">x</font> <a href="hidden.html#R2">in</a> <span class="p1"><a href="enumset1.html#K2">{</a><span class="default"><span class="p2"><a href="finseq_4.html#K3">&lt;*</a><span class="default">1,3,2</span><a href="finseq_4.html#K3">*&gt;</a></span>,<span class="p2"><a href="finseq_4.html#K3">&lt;*</a><span class="default">2,3,1</span><a href="finseq_4.html#K3">*&gt;</a></span>,<span class="p2"><a href="finseq_4.html#K3">&lt;*</a><span class="default">2,1,3</span><a href="finseq_4.html#K3">*&gt;</a></span>,<span class="p2"><a href="finseq_4.html#K3">&lt;*</a><span class="default">3,1,2</span><a href="finseq_4.html#K3">*&gt;</a></span></span><a href="enumset1.html#K2">}</a></span> )
 <b>by </b><i><a class="ref" href="xboole_0.html#D2">XBOOLE_0:def 2</a></i>;<br/><a NAME="E4:28_2"/><b>then </b>
( <font color="Maroon">x</font> <a href="hidden.html#R2">in</a> <span class="p1"><a href="tarski.html#K2">{</a><span class="default"><span class="p2"><a href="finseq_4.html#K3">&lt;*</a><span class="default">1,2,3</span><a href="finseq_4.html#K3">*&gt;</a></span>,<span class="p2"><a href="finseq_4.html#K3">&lt;*</a><span class="default">3,2,1</span><a href="finseq_4.html#K3">*&gt;</a></span></span><a href="tarski.html#K2">}</a></span> or <font color="Maroon">x</font> <a href="hidden.html#R2">in</a> <span class="p1"><a href="tarski.html#K2">{</a><span class="default"><span class="p2"><a href="finseq_4.html#K3">&lt;*</a><span class="default">1,3,2</span><a href="finseq_4.html#K3">*&gt;</a></span>,<span class="p2"><a href="finseq_4.html#K3">&lt;*</a><span class="default">2,3,1</span><a href="finseq_4.html#K3">*&gt;</a></span></span><a href="tarski.html#K2">}</a></span> <a href="xboole_0.html#K2">\/</a> <span class="p1"><a href="tarski.html#K2">{</a><span class="default"><span class="p2"><a href="finseq_4.html#K3">&lt;*</a><span class="default">2,1,3</span><a href="finseq_4.html#K3">*&gt;</a></span>,<span class="p2"><a href="finseq_4.html#K3">&lt;*</a><span class="default">3,1,2</span><a href="finseq_4.html#K3">*&gt;</a></span></span><a href="tarski.html#K2">}</a></span> )
 <b>by </b><i><a class="ref" href="enumset1.html#T45">ENUMSET1:45</a></i>;<br/><a NAME="E5:28_2"/><b>then </b>
( <font color="Maroon">x</font> <a href="hidden.html#R2">in</a> <span class="p1"><a href="tarski.html#K2">{</a><span class="default"><span class="p2"><a href="finseq_4.html#K3">&lt;*</a><span class="default">1,2,3</span><a href="finseq_4.html#K3">*&gt;</a></span>,<span class="p2"><a href="finseq_4.html#K3">&lt;*</a><span class="default">3,2,1</span><a href="finseq_4.html#K3">*&gt;</a></span></span><a href="tarski.html#K2">}</a></span> or <font color="Maroon">x</font> <a href="hidden.html#R2">in</a> <span class="p1"><a href="tarski.html#K2">{</a><span class="default"><span class="p2"><a href="finseq_4.html#K3">&lt;*</a><span class="default">1,3,2</span><a href="finseq_4.html#K3">*&gt;</a></span>,<span class="p2"><a href="finseq_4.html#K3">&lt;*</a><span class="default">2,3,1</span><a href="finseq_4.html#K3">*&gt;</a></span></span><a href="tarski.html#K2">}</a></span> or <font color="Maroon">x</font> <a href="hidden.html#R2">in</a> <span class="p1"><a href="tarski.html#K2">{</a><span class="default"><span class="p2"><a href="finseq_4.html#K3">&lt;*</a><span class="default">2,1,3</span><a href="finseq_4.html#K3">*&gt;</a></span>,<span class="p2"><a href="finseq_4.html#K3">&lt;*</a><span class="default">3,1,2</span><a href="finseq_4.html#K3">*&gt;</a></span></span><a href="tarski.html#K2">}</a></span> )
 <b>by </b><i><a class="ref" href="xboole_0.html#D2">XBOOLE_0:def 2</a></i>;<br/><a NAME="E6:28_2"/><b>then </b><i><font color="Green">E42</font></i>: 
( <font color="Maroon">x</font> <a href="hidden.html#R1">=</a> <span class="p1"><a href="finseq_4.html#K3">&lt;*</a><span class="default">1,2,3</span><a href="finseq_4.html#K3">*&gt;</a></span> or <font color="Maroon">x</font> <a href="hidden.html#R1">=</a> <span class="p1"><a href="finseq_4.html#K3">&lt;*</a><span class="default">3,2,1</span><a href="finseq_4.html#K3">*&gt;</a></span> or <font color="Maroon">x</font> <a href="hidden.html#R1">=</a> <span class="p1"><a href="finseq_4.html#K3">&lt;*</a><span class="default">1,3,2</span><a href="finseq_4.html#K3">*&gt;</a></span> or <font color="Maroon">x</font> <a href="hidden.html#R1">=</a> <span class="p1"><a href="finseq_4.html#K3">&lt;*</a><span class="default">2,3,1</span><a href="finseq_4.html#K3">*&gt;</a></span> or <font color="Maroon">x</font> <a href="hidden.html#R1">=</a> <span class="p1"><a href="finseq_4.html#K3">&lt;*</a><span class="default">2,1,3</span><a href="finseq_4.html#K3">*&gt;</a></span> or <font color="Maroon">x</font> <a href="hidden.html#R1">=</a> <span class="p1"><a href="finseq_4.html#K3">&lt;*</a><span class="default">3,1,2</span><a href="finseq_4.html#K3">*&gt;</a></span> )
 <b>by </b><i><a class="ref" href="tarski.html#D2">TARSKI:def 2</a></i>;<br/><a NAME="E7:28_2"/><i><font color="Green">E43</font></i>: 
 <a href="finseq_2.html#K1">idseq</a> 3 <a href="hidden.html#R2">in</a>  <a href="matrix_2.html#K12">Permutations</a> 3
 <b>by </b><i/>;<br/><a NAME="E8:28_2"/><i><font color="Green">E44</font></i>: 
 <a href="finseq_5.html#K3">Rev</a> <span class="p1">(<span class="default"><a href="finseq_2.html#K1">idseq</a> 3</span>)</span> <a href="hidden.html#R2">in</a>  <a href="matrix_2.html#K12">Permutations</a> 3
 <b>by </b><i/>;<br/><a NAME="E9:28_2"/><i><font color="Green">E45</font></i>: 
<span class="p1"><a href="finseq_4.html#K3">&lt;*</a><span class="default">1,3,2</span><a href="finseq_4.html#K3">*&gt;</a></span> <a href="hidden.html#R2">in</a>  <a href="matrix_2.html#K12">Permutations</a> 3
 <div><a class="txt" onclick="hs2(this)" href="javascript:()" title="28_2_1"><b>proof </b></a><div class="add">

<b>reconsider </b><font color="Maroon">f</font> = <span class="p1"><a href="finseq_4.html#K3">&lt;*</a><span class="default">1,2,3</span><a href="finseq_4.html#K3">*&gt;</a></span> 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> 3, <a href="setwop_2.html#K2">Seg</a> 3 <b>by </b><i><a class="ref" href="finseq_2.html#T62">FINSEQ_2:62</a></i>;<br/>
<b>reconsider </b><font color="Maroon">h</font> = <span class="p1"><a href="finseq_4.html#K2">&lt;*</a><span class="default">2,3</span><a href="finseq_4.html#K2">*&gt;</a></span> as    <a href="finseq_1.html#M2">FinSequence</a> of  <a href="numbers.html#K5">NAT</a>  ;<br/>
<a NAME="E3:28_2_1"/><i><font color="Green">E72</font></i>: 
<font color="Maroon">f</font> <a href="hidden.html#R1">=</a> <span class="p1"><a href="matrix_2.html#K4">&lt;*</a><span class="default">1</span><a href="matrix_2.html#K4">*&gt;</a></span> <a href="finseq_1.html#K8">^</a> <font color="Maroon">h</font>
 
<b>by </b><i><a class="ref" href="finseq_1.html#T60">FINSEQ_1:60</a></i>;<br/>
<a NAME="E4:28_2_1"/>
 <a href="finseq_5.html#K4">Rev</a> <font color="Maroon">h</font> <a href="hidden.html#R1">=</a> <span class="p1"><a href="finseq_4.html#K2">&lt;*</a><span class="default">3,2</span><a href="finseq_4.html#K2">*&gt;</a></span>
 
<b>by </b><i><a class="ref" href="finseq_5.html#T64">FINSEQ_5:64</a></i>;<br/>
<a NAME="E5:28_2_1"/><b>then </b>
<span class="p1"><a href="matrix_2.html#K4">&lt;*</a><span class="default">1</span><a href="matrix_2.html#K4">*&gt;</a></span> <a href="finseq_1.html#K8">^</a> <span class="p1">(<span class="default"><a href="finseq_5.html#K4">Rev</a> <font color="Maroon">h</font></span>)</span> <a href="hidden.html#R1">=</a> <span class="p1"><a href="finseq_4.html#K3">&lt;*</a><span class="default">1,3,2</span><a href="finseq_4.html#K3">*&gt;</a></span>
 
<b>by </b><i><a class="ref" href="finseq_1.html#T60">FINSEQ_1:60</a></i>;<br/>
<b>hence </b><a NAME="E6:28_2_1"/>
<span class="p1"><a href="finseq_4.html#K3">&lt;*</a><span class="default">1,3,2</span><a href="finseq_4.html#K3">*&gt;</a></span> <a href="hidden.html#R2">in</a>  <a href="matrix_2.html#K12">Permutations</a> 3
 <b>by </b><i>, , <a class="ref" href="finseq_2.html#T62">FINSEQ_2:62</a>, </i>;<br/>


</div><b>end;</b></div><a NAME="E10:28_2"/><i><font color="Green">E73</font></i>: 
<span class="p1"><a href="finseq_4.html#K3">&lt;*</a><span class="default">2,3,1</span><a href="finseq_4.html#K3">*&gt;</a></span> <a href="hidden.html#R2">in</a>  <a href="matrix_2.html#K12">Permutations</a> 3
 <div><a class="txt" onclick="hs2(this)" href="javascript:()" title="28_2_2"><b>proof </b></a><div class="add">

<b>reconsider </b><font color="Maroon">f</font> = <span class="p1"><a href="finseq_4.html#K3">&lt;*</a><span class="default">1,2,3</span><a href="finseq_4.html#K3">*&gt;</a></span> 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> 3, <a href="setwop_2.html#K2">Seg</a> 3 <b>by </b><i><a class="ref" href="finseq_2.html#T62">FINSEQ_2:62</a></i>;<br/>
<b>reconsider </b><font color="Maroon">h</font> = <span class="p1"><a href="finseq_4.html#K2">&lt;*</a><span class="default">2,3</span><a href="finseq_4.html#K2">*&gt;</a></span> as    <a href="finseq_1.html#M2">FinSequence</a> of  <a href="numbers.html#K5">NAT</a>  ;<br/>
<a NAME="E3:28_2_2"/>
<font color="Maroon">f</font> <a href="hidden.html#R1">=</a> <span class="p1"><a href="matrix_2.html#K4">&lt;*</a><span class="default">1</span><a href="matrix_2.html#K4">*&gt;</a></span> <a href="finseq_1.html#K8">^</a> <font color="Maroon">h</font>
 
<b>by </b><i><a class="ref" href="finseq_1.html#T60">FINSEQ_1:60</a></i>;<br/>
<b>hence </b><a NAME="E4:28_2_2"/>
<span class="p1"><a href="finseq_4.html#K3">&lt;*</a><span class="default">2,3,1</span><a href="finseq_4.html#K3">*&gt;</a></span> <a href="hidden.html#R2">in</a>  <a href="matrix_2.html#K12">Permutations</a> 3
 <b>by </b><i>, , <a class="ref" href="finseq_2.html#T62">FINSEQ_2:62</a></i>;<br/>


</div><b>end;</b></div><a NAME="E11:28_2"/><i><font color="Green">E74</font></i>: 
<span class="p1"><a href="finseq_4.html#K3">&lt;*</a><span class="default">2,1,3</span><a href="finseq_4.html#K3">*&gt;</a></span> <a href="hidden.html#R2">in</a>  <a href="matrix_2.html#K12">Permutations</a> 3
 <div><a class="txt" onclick="hs2(this)" href="javascript:()" title="28_2_3"><b>proof </b></a><div class="add">

<b>reconsider </b><font color="Maroon">f</font> = <span class="p1"><a href="finseq_4.html#K3">&lt;*</a><span class="default">1,2,3</span><a href="finseq_4.html#K3">*&gt;</a></span> 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> 3, <a href="setwop_2.html#K2">Seg</a> 3 <b>by </b><i><a class="ref" href="finseq_2.html#T62">FINSEQ_2:62</a></i>;<br/>
<b>reconsider </b><font color="Maroon">h</font> = <span class="p1"><a href="finseq_4.html#K2">&lt;*</a><span class="default">1,2</span><a href="finseq_4.html#K2">*&gt;</a></span> as    <a href="finseq_1.html#M2">FinSequence</a> of  <a href="numbers.html#K5">NAT</a>  ;<br/>
<a NAME="E3:28_2_3"/><i><font color="Green">E75</font></i>: 
<span class="p1"><a href="matrix_2.html#K4">&lt;*</a><span class="default">3</span><a href="matrix_2.html#K4">*&gt;</a></span> <a href="finseq_1.html#K8">^</a> <font color="Maroon">h</font> <a href="hidden.html#R2">in</a>  <a href="matrix_2.html#K12">Permutations</a> 3
 
<b>by </b><i>, , <a class="ref" href="finseq_2.html#T62">FINSEQ_2:62</a></i>;<br/>
<a NAME="E4:28_2_3"/><i><font color="Green">E76</font></i>: 
 <a href="finseq_5.html#K4">Rev</a> <font color="Maroon">h</font> <a href="hidden.html#R1">=</a> <span class="p1"><a href="finseq_4.html#K2">&lt;*</a><span class="default">2,1</span><a href="finseq_4.html#K2">*&gt;</a></span>
 
<b>by </b><i><a class="ref" href="finseq_5.html#T64">FINSEQ_5:64</a></i>;<br/>
<a NAME="E5:28_2_3"/>
<span class="p1"><a href="matrix_2.html#K4">&lt;*</a><span class="default">3</span><a href="matrix_2.html#K4">*&gt;</a></span> <a href="finseq_1.html#K8">^</a> <span class="p1">(<span class="default"><a href="finseq_5.html#K4">Rev</a> <font color="Maroon">h</font></span>)</span> <a href="hidden.html#R2">in</a>  <a href="matrix_2.html#K12">Permutations</a> 3
 
<b>by </b><i>, <a class="ref" href="matrix_9.html#T1" target="_self">Th1</a></i>;<br/>
<b>hence </b><a NAME="E6:28_2_3"/>
<span class="p1"><a href="finseq_4.html#K3">&lt;*</a><span class="default">2,1,3</span><a href="finseq_4.html#K3">*&gt;</a></span> <a href="hidden.html#R2">in</a>  <a href="matrix_2.html#K12">Permutations</a> 3
 <b>by </b><i>, </i>;<br/>


</div><b>end;</b></div><a NAME="E12:28_2"/>
<span class="p1"><a href="finseq_4.html#K3">&lt;*</a><span class="default">3,1,2</span><a href="finseq_4.html#K3">*&gt;</a></span> <a href="hidden.html#R2">in</a>  <a href="matrix_2.html#K12">Permutations</a> 3
 <div><a class="txt" onclick="hs2(this)" href="javascript:()" title="28_2_4"><b>proof </b></a><div class="add">

<b>reconsider </b><font color="Maroon">f</font> = <span class="p1"><a href="finseq_4.html#K3">&lt;*</a><span class="default">1,2,3</span><a href="finseq_4.html#K3">*&gt;</a></span> 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> 3, <a href="setwop_2.html#K2">Seg</a> 3 <b>by </b><i><a class="ref" href="finseq_2.html#T62">FINSEQ_2:62</a></i>;<br/>
<b>reconsider </b><font color="Maroon">h</font> = <span class="p1"><a href="finseq_4.html#K2">&lt;*</a><span class="default">1,2</span><a href="finseq_4.html#K2">*&gt;</a></span> as    <a href="finseq_1.html#M2">FinSequence</a> of  <a href="numbers.html#K5">NAT</a>  ;<br/>
<a NAME="E3:28_2_4"/>
<span class="p1"><a href="matrix_2.html#K4">&lt;*</a><span class="default">3</span><a href="matrix_2.html#K4">*&gt;</a></span> <a href="finseq_1.html#K8">^</a> <font color="Maroon">h</font> <a href="hidden.html#R1">=</a> <span class="p1"><a href="finseq_4.html#K3">&lt;*</a><span class="default">3,1,2</span><a href="finseq_4.html#K3">*&gt;</a></span>
 
<b>by </b><i><a class="ref" href="finseq_1.html#T60">FINSEQ_1:60</a></i>;<br/>
<b>hence </b><a NAME="E4:28_2_4"/>
<span class="p1"><a href="finseq_4.html#K3">&lt;*</a><span class="default">3,1,2</span><a href="finseq_4.html#K3">*&gt;</a></span> <a href="hidden.html#R2">in</a>  <a href="matrix_2.html#K12">Permutations</a> 3
 <b>by </b><i>, , <a class="ref" href="finseq_2.html#T62">FINSEQ_2:62</a></i>;<br/>


</div><b>end;</b></div><b>hence </b><a NAME="E13:28_2"/>
<font color="Maroon">x</font> <a href="hidden.html#R2">in</a>  <a href="matrix_2.html#K12">Permutations</a> 3
 <b>by </b><i>, , , , , <a class="txt" href="matrix_9.html#E1"><i><font color="Green">Lemma27</font></i></a>, , <a class="ref" href="finseq_2.html#T62">FINSEQ_2:62</a></i>;<br/></div><b>end;</b></div>
<a NAME="E4:28"/><b>then </b>
<span class="p1"><a href="enumset1.html#K4">{</a><span class="default"><span class="p2"><a href="finseq_4.html#K3">&lt;*</a><span class="default">1,2,3</span><a href="finseq_4.html#K3">*&gt;</a></span>,<span class="p2"><a href="finseq_4.html#K3">&lt;*</a><span class="default">3,2,1</span><a href="finseq_4.html#K3">*&gt;</a></span>,<span class="p2"><a href="finseq_4.html#K3">&lt;*</a><span class="default">1,3,2</span><a href="finseq_4.html#K3">*&gt;</a></span>,<span class="p2"><a href="finseq_4.html#K3">&lt;*</a><span class="default">2,3,1</span><a href="finseq_4.html#K3">*&gt;</a></span>,<span class="p2"><a href="finseq_4.html#K3">&lt;*</a><span class="default">2,1,3</span><a href="finseq_4.html#K3">*&gt;</a></span>,<span class="p2"><a href="finseq_4.html#K3">&lt;*</a><span class="default">3,1,2</span><a href="finseq_4.html#K3">*&gt;</a></span></span><a href="enumset1.html#K4">}</a></span> <a href="tarski.html#R1">c=</a>  <a href="matrix_2.html#K12">Permutations</a> 3
 
<b>by </b><i><a class="ref" href="tarski.html#D3">TARSKI:def 3</a></i>;<br/>
<b>hence </b><a NAME="E5:28"/>
 <a href="matrix_2.html#K12">Permutations</a> 3 <a href="hidden.html#R1">=</a> <span class="p1"><a href="enumset1.html#K4">{</a><span class="default"><span class="p2"><a href="finseq_4.html#K3">&lt;*</a><span class="default">1,2,3</span><a href="finseq_4.html#K3">*&gt;</a></span>,<span class="p2"><a href="finseq_4.html#K3">&lt;*</a><span class="default">3,2,1</span><a href="finseq_4.html#K3">*&gt;</a></span>,<span class="p2"><a href="finseq_4.html#K3">&lt;*</a><span class="default">1,3,2</span><a href="finseq_4.html#K3">*&gt;</a></span>,<span class="p2"><a href="finseq_4.html#K3">&lt;*</a><span class="default">2,3,1</span><a href="finseq_4.html#K3">*&gt;</a></span>,<span class="p2"><a href="finseq_4.html#K3">&lt;*</a><span class="default">2,1,3</span><a href="finseq_4.html#K3">*&gt;</a></span>,<span class="p2"><a href="finseq_4.html#K3">&lt;*</a><span class="default">3,1,2</span><a href="finseq_4.html#K3">*&gt;</a></span></span><a href="enumset1.html#K4">}</a></span>
 <b>by </b><i><a class="ref" href="xboole_0.html#D10">XBOOLE_0:def 10</a>, </i>;<br/>


</div>
