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

<b>set </b><font color="Maroon">v</font> =  <a href="subset_1.html#K10">choose</a> <span class="p1">(<span class="default"><span class="p2">(<span class="default"><font color="Maroon">G</font> <a href="graph_3.html#K1" target="_self">-VSet</a> <span class="p3">(<span class="default"><a href="relat_1.html#K2">rng</a> <font color="Maroon">c1</font></span>)</span></span>)</span> <a href="subset_1.html#K9">/\</a> <span class="p2">(<span class="default"><font color="Maroon">G</font> <a href="graph_3.html#K1" target="_self">-VSet</a> <span class="p3">(<span class="default"><a href="relat_1.html#K2">rng</a> <font color="Maroon">c2</font></span>)</span></span>)</span></span>)</span>;<br/>
<a NAME="E1:74_1_1"/><i><font color="Green">E36</font></i>: 
not <span class="p1">(<span class="default"><font color="Maroon">G</font> <a href="graph_3.html#K1" target="_self">-VSet</a> <span class="p2">(<span class="default"><a href="relat_1.html#K2">rng</a> <font color="Maroon">c1</font></span>)</span></span>)</span> <a href="subset_1.html#K9">/\</a> <span class="p1">(<span class="default"><font color="Maroon">G</font> <a href="graph_3.html#K1" target="_self">-VSet</a> <span class="p2">(<span class="default"><a href="relat_1.html#K2">rng</a> <font color="Maroon">c2</font></span>)</span></span>)</span> is <a href="xboole_0.html#V1">empty</a>
 
<b>by </b><i><a class="ref" href="graph_3.html#T3" target="_self">Th3</a>, <a class="ref" href="xboole_0.html#D7">XBOOLE_0:def 7</a></i>;<br/>
<a NAME="E2:74_1_1"/><b>then </b><i><font color="Green">E37</font></i>: 
 <a href="subset_1.html#K10">choose</a> <span class="p1">(<span class="default"><span class="p2">(<span class="default"><font color="Maroon">G</font> <a href="graph_3.html#K1" target="_self">-VSet</a> <span class="p3">(<span class="default"><a href="relat_1.html#K2">rng</a> <font color="Maroon">c1</font></span>)</span></span>)</span> <a href="subset_1.html#K9">/\</a> <span class="p2">(<span class="default"><font color="Maroon">G</font> <a href="graph_3.html#K1" target="_self">-VSet</a> <span class="p3">(<span class="default"><a href="relat_1.html#K2">rng</a> <font color="Maroon">c2</font></span>)</span></span>)</span></span>)</span> <a href="hidden.html#R2">in</a> <span class="p1">(<span class="default"><font color="Maroon">G</font> <a href="graph_3.html#K1" target="_self">-VSet</a> <span class="p2">(<span class="default"><a href="relat_1.html#K2">rng</a> <font color="Maroon">c1</font></span>)</span></span>)</span> <a href="subset_1.html#K9">/\</a> <span class="p1">(<span class="default"><font color="Maroon">G</font> <a href="graph_3.html#K1" target="_self">-VSet</a> <span class="p2">(<span class="default"><a href="relat_1.html#K2">rng</a> <font color="Maroon">c2</font></span>)</span></span>)</span>
 
;<br/>
<a NAME="E3:74_1_1"/><i><font color="Green">E46</font></i>: 
(  <a href="subset_1.html#K10">choose</a> <span class="p1">(<span class="default"><span class="p2">(<span class="default"><font color="Maroon">G</font> <a href="graph_3.html#K1" target="_self">-VSet</a> <span class="p3">(<span class="default"><a href="relat_1.html#K2">rng</a> <font color="Maroon">c1</font></span>)</span></span>)</span> <a href="subset_1.html#K9">/\</a> <span class="p2">(<span class="default"><font color="Maroon">G</font> <a href="graph_3.html#K1" target="_self">-VSet</a> <span class="p3">(<span class="default"><a href="relat_1.html#K2">rng</a> <font color="Maroon">c2</font></span>)</span></span>)</span></span>)</span> <a href="hidden.html#R2">in</a> <font color="Maroon">G</font> <a href="graph_3.html#K1" target="_self">-VSet</a> <span class="p1">(<span class="default"><a href="relat_1.html#K2">rng</a> <font color="Maroon">c1</font></span>)</span> &amp;  <a href="subset_1.html#K10">choose</a> <span class="p1">(<span class="default"><span class="p2">(<span class="default"><font color="Maroon">G</font> <a href="graph_3.html#K1" target="_self">-VSet</a> <span class="p3">(<span class="default"><a href="relat_1.html#K2">rng</a> <font color="Maroon">c1</font></span>)</span></span>)</span> <a href="subset_1.html#K9">/\</a> <span class="p2">(<span class="default"><font color="Maroon">G</font> <a href="graph_3.html#K1" target="_self">-VSet</a> <span class="p3">(<span class="default"><a href="relat_1.html#K2">rng</a> <font color="Maroon">c2</font></span>)</span></span>)</span></span>)</span> <a href="hidden.html#R2">in</a> <font color="Maroon">G</font> <a href="graph_3.html#K1" target="_self">-VSet</a> <span class="p1">(<span class="default"><a href="relat_1.html#K2">rng</a> <font color="Maroon">c2</font></span>)</span> )
 
<b>by </b><i><a class="ref" href="graph_3.html#T7" target="_self">Th7</a>, <a class="ref" href="xboole_0.html#D3">XBOOLE_0:def 3</a></i>;<br/>
<b>reconsider </b><font color="Maroon">v</font> =  <a href="subset_1.html#K10">choose</a> <span class="p1">(<span class="default"><span class="p2">(<span class="default"><font color="Maroon">G</font> <a href="graph_3.html#K1" target="_self">-VSet</a> <span class="p3">(<span class="default"><a href="relat_1.html#K2">rng</a> <font color="Maroon">c1</font></span>)</span></span>)</span> <a href="subset_1.html#K9">/\</a> <span class="p2">(<span class="default"><font color="Maroon">G</font> <a href="graph_3.html#K1" target="_self">-VSet</a> <span class="p3">(<span class="default"><a href="relat_1.html#K2">rng</a> <font color="Maroon">c2</font></span>)</span></span>)</span></span>)</span> as   <a href="graph_3.html#NM2">Vertex</a> of <font color="Maroon">G</font> <b>by </b><i><a class="ref" href="graph_3.html#T8" target="_self">Th8</a></i>;<br/>
<b>set </b><font color="Maroon">r1</font> =  <a href="graph_3.html#K10" target="_self">Rotate</a> <font color="Maroon">c1</font>,<font color="Maroon">v</font>;<br/>
<b>set </b><font color="Maroon">r2</font> =  <a href="graph_3.html#K10" target="_self">Rotate</a> <font color="Maroon">c2</font>,<font color="Maroon">v</font>;<br/>
<b>reconsider </b><font color="Maroon">Rotated1</font> = <span class="p1">{<span class="default"> <font color="Olive">c'</font> where <font color="Olive">c'</font> is    <a href="finseq_2.html#M2">Element</a> of <font color="Maroon">G</font> <a href="graph_3.html#K9" target="_self">-CycleSet</a>  : (  <a href="relat_1.html#K2">rng</a> <font color="Olive">c'</font> <a href="hidden.html#R1">=</a>  <a href="relat_1.html#K2">rng</a> <font color="Maroon">c1</font> &amp;  ex <font color="Olive">vs</font> being   <a href="finseq_1.html#M2">FinSequence</a> of the <a href="graph_1.html#U1">Vertices</a> of <font color="Maroon">G</font> st <br/>( <font color="Olive">vs</font> <a href="graph_2.html#R1">is_vertex_seq_of</a> <font color="Olive">c'</font> &amp; <font color="Olive">vs</font> <a href="funct_1.html#K1">.</a> 1 <a href="hidden.html#R1">=</a> <font color="Maroon">v</font> ) ) </span>}</span>  as  non <a href="xboole_0.html#V1">empty</a> <a href="subset_1.html#NM2">Subset</a> of <span class="p1">(<span class="default"><font color="Maroon">G</font> <a href="graph_3.html#K9" target="_self">-CycleSet</a> </span>)</span> <b>by </b><i>, </i>;<br/>
<b>reconsider </b><font color="Maroon">Rotated2</font> = <span class="p1">{<span class="default"> <font color="Olive">c'</font> where <font color="Olive">c'</font> is    <a href="finseq_2.html#M2">Element</a> of <font color="Maroon">G</font> <a href="graph_3.html#K9" target="_self">-CycleSet</a>  : (  <a href="relat_1.html#K2">rng</a> <font color="Olive">c'</font> <a href="hidden.html#R1">=</a>  <a href="relat_1.html#K2">rng</a> <font color="Maroon">c2</font> &amp;  ex <font color="Olive">vs</font> being   <a href="finseq_1.html#M2">FinSequence</a> of the <a href="graph_1.html#U1">Vertices</a> of <font color="Maroon">G</font> st <br/>( <font color="Olive">vs</font> <a href="graph_2.html#R1">is_vertex_seq_of</a> <font color="Olive">c'</font> &amp; <font color="Olive">vs</font> <a href="funct_1.html#K1">.</a> 1 <a href="hidden.html#R1">=</a> <font color="Maroon">v</font> ) ) </span>}</span>  as  non <a href="xboole_0.html#V1">empty</a> <a href="subset_1.html#NM2">Subset</a> of <span class="p1">(<span class="default"><font color="Maroon">G</font> <a href="graph_3.html#K9" target="_self">-CycleSet</a> </span>)</span> <b>by </b><i>, </i>;<br/>
<a NAME="E7:74_1_1"/><i><font color="Green">E47</font></i>: 
 <a href="graph_3.html#K10" target="_self">Rotate</a> <font color="Maroon">c1</font>,<font color="Maroon">v</font> <a href="hidden.html#R1">=</a>  <a href="subset_1.html#K10">choose</a> <font color="Maroon">Rotated1</font>
 
<b>by </b><i>, </i>;<br/>
<a NAME="E8:74_1_1"/><i><font color="Green">E48</font></i>: 
 <a href="graph_3.html#K10" target="_self">Rotate</a> <font color="Maroon">c2</font>,<font color="Maroon">v</font> <a href="hidden.html#R1">=</a>  <a href="subset_1.html#K10">choose</a> <font color="Maroon">Rotated2</font>
 
<b>by </b><i>, </i>;<br/>
<a NAME="E9:74_1_1"/>
 <a href="graph_3.html#K10" target="_self">Rotate</a> <font color="Maroon">c1</font>,<font color="Maroon">v</font> <a href="hidden.html#R2">in</a> <font color="Maroon">Rotated1</font>
 
<b>by </b><i/>;<br/>
<b>then consider </b><font color="Maroon">c'</font> being    <a href="finseq_2.html#M2">Element</a> of <font color="Maroon">G</font> <a href="graph_3.html#K9" target="_self">-CycleSet</a> <b> such that </b><br/><a NAME="E11:74_1_1"/><i><font color="Green">E72</font></i>: 
 <a href="graph_3.html#K10" target="_self">Rotate</a> <font color="Maroon">c1</font>,<font color="Maroon">v</font> <a href="hidden.html#R1">=</a> <font color="Maroon">c'</font>
 <b>and </b><br/><a NAME="E12:74_1_1"/><i><font color="Green">E73</font></i>: 
 <a href="relat_1.html#K2">rng</a> <font color="Maroon">c'</font> <a href="hidden.html#R1">=</a>  <a href="relat_1.html#K2">rng</a> <font color="Maroon">c1</font>
 <b>and </b><br/><a NAME="E13:74_1_1"/><i><font color="Green">E75</font></i>: 
 ex <font color="Olive">vs</font> being   <a href="finseq_1.html#M2">FinSequence</a> of the <a href="graph_1.html#U1">Vertices</a> of <font color="Maroon">G</font> st <br/>( <font color="Olive">vs</font> <a href="graph_2.html#R1">is_vertex_seq_of</a> <font color="Maroon">c'</font> &amp; <font color="Olive">vs</font> <a href="funct_1.html#K1">.</a> 1 <a href="hidden.html#R1">=</a> <font color="Maroon">v</font> )
 ;<br/>
<a NAME="E14:74_1_1"/>
 <a href="graph_3.html#K10" target="_self">Rotate</a> <font color="Maroon">c2</font>,<font color="Maroon">v</font> <a href="hidden.html#R2">in</a> <font color="Maroon">Rotated2</font>
 
<b>by </b><i/>;<br/>
<b>then consider </b><font color="Maroon">c''</font> being    <a href="finseq_2.html#M2">Element</a> of <font color="Maroon">G</font> <a href="graph_3.html#K9" target="_self">-CycleSet</a> <b> such that </b><br/><a NAME="E16:74_1_1"/><i><font color="Green">E76</font></i>: 
 <a href="graph_3.html#K10" target="_self">Rotate</a> <font color="Maroon">c2</font>,<font color="Maroon">v</font> <a href="hidden.html#R1">=</a> <font color="Maroon">c''</font>
 <b>and </b><br/><a NAME="E17:74_1_1"/><i><font color="Green">E77</font></i>: 
 <a href="relat_1.html#K2">rng</a> <font color="Maroon">c''</font> <a href="hidden.html#R1">=</a>  <a href="relat_1.html#K2">rng</a> <font color="Maroon">c2</font>
 <b>and </b><br/><a NAME="E18:74_1_1"/><i><font color="Green">E79</font></i>: 
 ex <font color="Olive">vs</font> being   <a href="finseq_1.html#M2">FinSequence</a> of the <a href="graph_1.html#U1">Vertices</a> of <font color="Maroon">G</font> st <br/>( <font color="Olive">vs</font> <a href="graph_2.html#R1">is_vertex_seq_of</a> <font color="Maroon">c''</font> &amp; <font color="Olive">vs</font> <a href="funct_1.html#K1">.</a> 1 <a href="hidden.html#R1">=</a> <font color="Maroon">v</font> )
 ;<br/>
<b>consider </b><font color="Maroon">vs1</font> being    <a href="finseq_1.html#M2">FinSequence</a> of the <a href="graph_1.html#U1">Vertices</a> of <font color="Maroon">G</font><b> such that </b><br/><a NAME="E20:74_1_1"/><i><font color="Green">E80</font></i>: 
( <font color="Maroon">vs1</font> <a href="graph_2.html#R1">is_vertex_seq_of</a> <font color="Maroon">c'</font> &amp; <font color="Maroon">vs1</font> <a href="funct_1.html#K1">.</a> 1 <a href="hidden.html#R1">=</a> <font color="Maroon">v</font> )
 <b>by </b><i/>;<br/>
<b>consider </b><font color="Maroon">vs2</font> being    <a href="finseq_1.html#M2">FinSequence</a> of the <a href="graph_1.html#U1">Vertices</a> of <font color="Maroon">G</font><b> such that </b><br/><a NAME="E22:74_1_1"/><i><font color="Green">E81</font></i>: 
( <font color="Maroon">vs2</font> <a href="graph_2.html#R1">is_vertex_seq_of</a> <font color="Maroon">c''</font> &amp; <font color="Maroon">vs2</font> <a href="funct_1.html#K1">.</a> 1 <a href="hidden.html#R1">=</a> <font color="Maroon">v</font> )
 <b>by </b><i><a class="txt" href="graph_3.html#E12:74_1_1"><i><font color="Green">E73</font></i></a></i>;<br/>
<b>reconsider </b><font color="Maroon">c'1</font> = <font color="Maroon">c'</font> as  <a href="msscyc_1.html#V1">cyclic</a> <a href="graph_1.html#NM4">Path</a> of <font color="Maroon">G</font> <b>by </b><i/>;<br/>
<b>reconsider </b><font color="Maroon">c'2</font> = <font color="Maroon">c''</font> as  <a href="msscyc_1.html#V1">cyclic</a> <a href="graph_1.html#NM4">Path</a> of <font color="Maroon">G</font> <b>by </b><i/>;<br/>
<a NAME="E25:74_1_1"/><i><font color="Green">E82</font></i>: 
<font color="Maroon">vs2</font> <a href="graph_2.html#R1">is_vertex_seq_of</a> <font color="Maroon">c'2</font>
 
<b>by </b><i><a class="txt" href="graph_3.html#E13:74_1_1"><i><font color="Green">E75</font></i></a></i>;<br/>
<a NAME="E26:74_1_1"/>
<font color="Maroon">vs1</font> <a href="graph_2.html#R1">is_vertex_seq_of</a> <font color="Maroon">c'1</font>
 
<b>by </b><i/>;<br/>
<a NAME="E27:74_1_1"/><b>then </b><i><font color="Green">E89</font></i>: 
<font color="Maroon">vs1</font> <a href="funct_1.html#K1">.</a> 1 <a href="hidden.html#R1">=</a> <font color="Maroon">vs1</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">vs1</font></span>)</span>
 
<b>by </b><i><a class="ref" href="msscyc_1.html#T6">MSSCYC_1:6</a></i>;<br/>
<a NAME="E28:74_1_1"/><i><font color="Green">E90</font></i>: 
(  <a href="graph_3.html#K10" target="_self">Rotate</a> <font color="Maroon">c1</font>,<font color="Maroon">v</font> <a href="hidden.html#R1">=</a> <font color="Maroon">c'1</font> &amp;  <a href="graph_3.html#K10" target="_self">Rotate</a> <font color="Maroon">c2</font>,<font color="Maroon">v</font> <a href="hidden.html#R1">=</a> <font color="Maroon">c'2</font> )
 
<b>by </b><i>, </i>;<br/>
<b>then reconsider </b><font color="Maroon">c</font> = <span class="p1">(<span class="default"><a href="graph_3.html#K10" target="_self">Rotate</a> <font color="Maroon">c1</font>,<font color="Maroon">v</font></span>)</span> <a href="finseq_1.html#K8">^</a> <span class="p1">(<span class="default"><a href="graph_3.html#K10" target="_self">Rotate</a> <font color="Maroon">c2</font>,<font color="Maroon">v</font></span>)</span> as   <a href="graph_1.html#NM4">Path</a> of <font color="Maroon">G</font> <b>by </b><i><a class="txt" href="graph_3.html#E5"><i><font color="Green">Lemma62</font></i></a>, <a class="ref" href="graph_3.html#T9" target="_self">Th9</a>, <a class="txt" href="graph_3.html#E11:74_1_1"><i><font color="Green">E72</font></i></a>, , <a class="txt" href="graph_3.html#E13:74_1_1"><i><font color="Green">E75</font></i></a>, <a class="txt" href="graph_3.html#E17:74_1_1"><i><font color="Green">E77</font></i></a>, </i>;<br/>
<b>set </b><font color="Maroon">vs12</font> = <font color="Maroon">vs1</font> <a href="graph_2.html#K4">^'</a> <font color="Maroon">vs2</font>;<br/>
<a NAME="E30:74_1_1"/><i><font color="Green">E91</font></i>: 
<font color="Maroon">vs1</font> <a href="graph_2.html#K4">^'</a> <font color="Maroon">vs2</font> <a href="graph_2.html#R1">is_vertex_seq_of</a> <font color="Maroon">c</font>
 
<b>by </b><i>, <a class="txt" href="graph_3.html#E13:74_1_1"><i><font color="Green">E75</font></i></a>, <a class="txt" href="graph_3.html#E17:74_1_1"><i><font color="Green">E77</font></i></a>, , <a class="ref" href="graph_2.html#T47">GRAPH_2:47</a></i>;<br/>
<a NAME="E31:74_1_1"/>
 <a href="finseq_1.html#K3">len</a> <font color="Maroon">vs1</font> <a href="hidden.html#R1">=</a> <span class="p1">(<span class="default"><a href="finseq_1.html#K3">len</a> <font color="Maroon">c'</font></span>)</span> <a href="nat_1.html#K1">+</a> 1
 
<b>by </b><i>, <a class="ref" href="graph_2.html#D7">GRAPH_2:def 7</a></i>;<br/>
<a NAME="E32:74_1_1"/><b>then </b><i><font color="Green">E93</font></i>: 
1 <a href="xxreal_0.html#R1">&lt;=</a>  <a href="finseq_1.html#K3">len</a> <font color="Maroon">vs1</font>
 
<b>by </b><i><a class="ref" href="nat_1.html#T29">NAT_1:29</a></i>;<br/>
<a NAME="E33:74_1_1"/>
not  <a href="relat_1.html#K2">rng</a> <font color="Maroon">c2</font> is <a href="xboole_0.html#V1">empty</a>
 
<b>by </b><i>, </i>;<br/>
<a NAME="E34:74_1_1"/><b>then </b>
 <a href="finseq_1.html#K3">len</a> <font color="Maroon">c''</font> <a href="hidden.html#NR2" target="_self">&lt;&gt;</a> 0
 
<b>by </b><i><a class="txt" href="graph_3.html#E11:74_1_1"><i><font color="Green">E72</font></i></a>, <a class="ref" href="finseq_1.html#T25">FINSEQ_1:25</a>, <a class="ref" href="relat_1.html#T60">RELAT_1:60</a></i>;<br/>
<a NAME="E35:74_1_1"/><b>then </b>
0 <a href="xxreal_0.html#NR3" target="_self">&lt;</a>  <a href="finseq_1.html#K3">len</a> <font color="Maroon">c''</font>
 
;<br/>
<a NAME="E36:74_1_1"/><b>then </b>
0 <a href="nat_1.html#K1">+</a> 1 <a href="xxreal_0.html#NR3" target="_self">&lt;</a> <span class="p1">(<span class="default"><a href="finseq_1.html#K3">len</a> <font color="Maroon">c''</font></span>)</span> <a href="nat_1.html#K1">+</a> 1
 
<b>by </b><i><a class="ref" href="xreal_1.html#T8">XREAL_1:8</a></i>;<br/>
<a NAME="E37:74_1_1"/><b>then </b><i><font color="Green">E94</font></i>: 
1 <a href="xxreal_0.html#NR3" target="_self">&lt;</a>  <a href="finseq_1.html#K3">len</a> <font color="Maroon">vs2</font>
 
<b>by </b><i><a class="txt" href="graph_3.html#E13:74_1_1"><i><font color="Green">E75</font></i></a>, <a class="ref" href="graph_2.html#D7">GRAPH_2:def 7</a></i>;<br/>
<span class="p1">(<span class="default"><font color="Maroon">vs1</font> <a href="graph_2.html#K4">^'</a> <font color="Maroon">vs2</font></span>)</span> <a href="funct_1.html#K1">.</a> 1 = 
<font color="Maroon">vs1</font> <a href="funct_1.html#K1">.</a> 1
<b>by </b><i><a class="txt" href="graph_3.html#E20:74_1_1"><i><font color="Green">E80</font></i></a>, <a class="ref" href="graph_2.html#T14">GRAPH_2:14</a></i>
<br/>.= 
<font color="Maroon">vs2</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">vs2</font></span>)</span>
<b>by </b><i>, <a class="txt" href="graph_3.html#E13:74_1_1"><i><font color="Green">E75</font></i></a>, <a class="txt" href="graph_3.html#E16:74_1_1"><i><font color="Green">E76</font></i></a>, <a class="ref" href="msscyc_1.html#T6">MSSCYC_1:6</a></i>
<br/>.= 
<span class="p1">(<span class="default"><font color="Maroon">vs1</font> <a href="graph_2.html#K4">^'</a> <font color="Maroon">vs2</font></span>)</span> <a href="funct_1.html#K1">.</a> <span class="p1">(<span class="default"><a href="finseq_1.html#K3">len</a> <span class="p2">(<span class="default"><font color="Maroon">vs1</font> <a href="graph_2.html#K4">^'</a> <font color="Maroon">vs2</font></span>)</span></span>)</span>
<b>by </b><i><a class="txt" href="graph_3.html#E22:74_1_1"><i><font color="Green">E81</font></i></a>, <a class="ref" href="graph_2.html#T16">GRAPH_2:16</a></i>
;<br/>
<a NAME="E39:74_1_1"/><b>then </b>
<font color="Maroon">c</font> is <a href="msscyc_1.html#V1">cyclic</a>
 
<b>by </b><i><a class="txt" href="graph_3.html#E18:74_1_1"><i><font color="Green">E79</font></i></a>, <a class="ref" href="msscyc_1.html#D2">MSSCYC_1:def 2</a></i>;<br/>
<b>then reconsider </b><font color="Maroon">c</font> = <font color="Maroon">c</font> as    <a href="finseq_2.html#M2">Element</a> of <font color="Maroon">G</font> <a href="graph_3.html#K9" target="_self">-CycleSet</a>  <b>by </b><i/>;<br/>
<b>take </b>
<font color="Maroon">c</font>
;<br/>

<b>take </b>
<font color="Maroon">v</font>
;<br/>

<b>thus </b><a NAME="E41:74_1_1"/>
( <font color="Maroon">v</font> <a href="hidden.html#R1">=</a>  <a href="subset_1.html#K10">choose</a> <span class="p1">(<span class="default"><span class="p2">(<span class="default"><font color="Maroon">G</font> <a href="graph_3.html#K1" target="_self">-VSet</a> <span class="p3">(<span class="default"><a href="relat_1.html#K2">rng</a> <font color="Maroon">c1</font></span>)</span></span>)</span> <a href="subset_1.html#K9">/\</a> <span class="p2">(<span class="default"><font color="Maroon">G</font> <a href="graph_3.html#K1" target="_self">-VSet</a> <span class="p3">(<span class="default"><a href="relat_1.html#K2">rng</a> <font color="Maroon">c2</font></span>)</span></span>)</span></span>)</span> &amp; <font color="Maroon">c</font> <a href="hidden.html#R1">=</a> <span class="p1">(<span class="default"><a href="graph_3.html#K10" target="_self">Rotate</a> <font color="Maroon">c1</font>,<font color="Maroon">v</font></span>)</span> <a href="finseq_1.html#K8">^</a> <span class="p1">(<span class="default"><a href="graph_3.html#K10" target="_self">Rotate</a> <font color="Maroon">c2</font>,<font color="Maroon">v</font></span>)</span> )
 ;<br/>


</div>
