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

<b>set </b><font color="Maroon">V</font> = <span class="p1"><a href="domain_1.html#K7">{</a><span class="default">0,1</span><a href="domain_1.html#K7">}</a></span>;<br/>
<b>set </b><font color="Maroon">E</font> = <span class="p1"><a href="domain_1.html#K6">{</a><span class="default">0</span><a href="domain_1.html#K6">}</a></span>;<br/>
<b>set </b><font color="Maroon">S</font> = 0 <a href="cqc_lang.html#K3">.--&gt;</a> 0;<br/>
<b>set </b><font color="Maroon">T</font> = 0 <a href="cqc_lang.html#K3">.--&gt;</a> 1;<br/>
<a NAME="E1:115_2_1"/><i><font color="Green">E59</font></i>: 
(  <a href="relat_1.html#K1">dom</a> <span class="p1">(<span class="default">0 <a href="cqc_lang.html#K3">.--&gt;</a> 0</span>)</span> <a href="hidden.html#R1">=</a> <span class="p1"><a href="domain_1.html#K6">{</a><span class="default">0</span><a href="domain_1.html#K6">}</a></span> &amp;  <a href="relat_1.html#K1">dom</a> <span class="p1">(<span class="default">0 <a href="cqc_lang.html#K3">.--&gt;</a> 1</span>)</span> <a href="hidden.html#R1">=</a> <span class="p1"><a href="domain_1.html#K6">{</a><span class="default">0</span><a href="domain_1.html#K6">}</a></span> )
 
<b>by </b><i><a class="ref" href="cqc_lang.html#T5">CQC_LANG:5</a></i>;<br/>
<div><a class="txt" onclick="hs2(this)" href="javascript:()" title="115_2_1_1"><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="E1:115_2_1_1"/>
<font color="Maroon">x</font> <a href="hidden.html#R2">in</a> <span class="p1"><a href="domain_1.html#K6">{</a><span class="default">0</span><a href="domain_1.html#K6">}</a></span>
 ;<br/><a NAME="E2:115_2_1_1"/><b>then </b>
<font color="Maroon">x</font> <a href="hidden.html#R1">=</a> 0
 <b>by </b><i><a class="ref" href="tarski.html#D1">TARSKI:def 1</a></i>;<br/><a NAME="E3:115_2_1_1"/><b>then </b>
<span class="p1">(<span class="default">0 <a href="cqc_lang.html#K3">.--&gt;</a> 0</span>)</span> <a href="funct_1.html#K1">.</a> <font color="Maroon">x</font> <a href="hidden.html#R1">=</a> 0
 <b>by </b><i><a class="ref" href="cqc_lang.html#T6">CQC_LANG:6</a></i>;<br/><b>hence </b><a NAME="E4:115_2_1_1"/>
<span class="p1">(<span class="default">0 <a href="cqc_lang.html#K3">.--&gt;</a> 0</span>)</span> <a href="funct_1.html#K1">.</a> <font color="Maroon">x</font> <a href="hidden.html#R2">in</a> <span class="p1"><a href="domain_1.html#K7">{</a><span class="default">0,1</span><a href="domain_1.html#K7">}</a></span>
 <b>by </b><i><a class="ref" href="tarski.html#D2">TARSKI:def 2</a></i>;<br/></div><b>end;</b></div>
<b>then reconsider </b><font color="Maroon">S</font> = 0 <a href="cqc_lang.html#K3">.--&gt;</a> 0 as   <a href="funct_2.html#NM1">Function</a> of <span class="p1"><a href="domain_1.html#K6">{</a><span class="default">0</span><a href="domain_1.html#K6">}</a></span>,<span class="p1"><a href="domain_1.html#K7">{</a><span class="default">0,1</span><a href="domain_1.html#K7">}</a></span> <b>by </b><i><a class="ref" href="chord.html#T19" target="_self">Th19</a>, <a class="ref" href="funct_2.html#T5">FUNCT_2:5</a></i>;<br/>
<div><a class="txt" onclick="hs2(this)" href="javascript:()" title="115_2_1_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="E1:115_2_1_2"/>
<font color="Maroon">x</font> <a href="hidden.html#R2">in</a> <span class="p1"><a href="domain_1.html#K6">{</a><span class="default">0</span><a href="domain_1.html#K6">}</a></span>
 ;<br/><a NAME="E2:115_2_1_2"/><b>then </b>
<font color="Maroon">x</font> <a href="hidden.html#R1">=</a> 0
 <b>by </b><i><a class="ref" href="tarski.html#D1">TARSKI:def 1</a></i>;<br/><a NAME="E3:115_2_1_2"/><b>then </b>
<span class="p1">(<span class="default">0 <a href="cqc_lang.html#K3">.--&gt;</a> 1</span>)</span> <a href="funct_1.html#K1">.</a> <font color="Maroon">x</font> <a href="hidden.html#R1">=</a> 1
 <b>by </b><i><a class="ref" href="cqc_lang.html#T6">CQC_LANG:6</a></i>;<br/><b>hence </b><a NAME="E4:115_2_1_2"/>
<span class="p1">(<span class="default">0 <a href="cqc_lang.html#K3">.--&gt;</a> 1</span>)</span> <a href="funct_1.html#K1">.</a> <font color="Maroon">x</font> <a href="hidden.html#R2">in</a> <span class="p1"><a href="domain_1.html#K7">{</a><span class="default">0,1</span><a href="domain_1.html#K7">}</a></span>
 <b>by </b><i><a class="ref" href="tarski.html#D2">TARSKI:def 2</a></i>;<br/></div><b>end;</b></div>
<b>then reconsider </b><font color="Maroon">T</font> = 0 <a href="cqc_lang.html#K3">.--&gt;</a> 1 as   <a href="funct_2.html#NM1">Function</a> of <span class="p1"><a href="domain_1.html#K6">{</a><span class="default">0</span><a href="domain_1.html#K6">}</a></span>,<span class="p1"><a href="domain_1.html#K7">{</a><span class="default">0,1</span><a href="domain_1.html#K7">}</a></span> <b>by </b><i><a class="ref" href="chord.html#T19" target="_self">Th19</a>, <a class="ref" href="funct_2.html#T5">FUNCT_2:5</a></i>;<br/>
<b>set </b><font color="Maroon">G</font> =  <a href="glib_000.html#K12">createGraph</a> <span class="p1"><a href="domain_1.html#K7">{</a><span class="default">0,1</span><a href="domain_1.html#K7">}</a></span>,<span class="p1"><a href="domain_1.html#K6">{</a><span class="default">0</span><a href="domain_1.html#K6">}</a></span>,<font color="Maroon">S</font>,<font color="Maroon">T</font>;<br/>
<a NAME="E6:115_2_1"/><i><font color="Green">E66</font></i>: 
(  <a href="glib_000.html#K6">the_Vertices_of</a> <span class="p1">(<span class="default"><a href="glib_000.html#K12">createGraph</a> <span class="p2"><a href="domain_1.html#K7">{</a><span class="default">0,1</span><a href="domain_1.html#K7">}</a></span>,<span class="p2"><a href="domain_1.html#K6">{</a><span class="default">0</span><a href="domain_1.html#K6">}</a></span>,<font color="Maroon">S</font>,<font color="Maroon">T</font></span>)</span> <a href="hidden.html#R1">=</a> <span class="p1"><a href="domain_1.html#K7">{</a><span class="default">0,1</span><a href="domain_1.html#K7">}</a></span> &amp;  <a href="glib_000.html#K7">the_Edges_of</a> <span class="p1">(<span class="default"><a href="glib_000.html#K12">createGraph</a> <span class="p2"><a href="domain_1.html#K7">{</a><span class="default">0,1</span><a href="domain_1.html#K7">}</a></span>,<span class="p2"><a href="domain_1.html#K6">{</a><span class="default">0</span><a href="domain_1.html#K6">}</a></span>,<font color="Maroon">S</font>,<font color="Maroon">T</font></span>)</span> <a href="hidden.html#R1">=</a> <span class="p1"><a href="domain_1.html#K6">{</a><span class="default">0</span><a href="domain_1.html#K6">}</a></span> &amp;  <a href="glib_000.html#K10">the_Source_of</a> <span class="p1">(<span class="default"><a href="glib_000.html#K12">createGraph</a> <span class="p2"><a href="domain_1.html#K7">{</a><span class="default">0,1</span><a href="domain_1.html#K7">}</a></span>,<span class="p2"><a href="domain_1.html#K6">{</a><span class="default">0</span><a href="domain_1.html#K6">}</a></span>,<font color="Maroon">S</font>,<font color="Maroon">T</font></span>)</span> <a href="funct_2.html#R1">=</a> <font color="Maroon">S</font> &amp;  <a href="glib_000.html#K11">the_Target_of</a> <span class="p1">(<span class="default"><a href="glib_000.html#K12">createGraph</a> <span class="p2"><a href="domain_1.html#K7">{</a><span class="default">0,1</span><a href="domain_1.html#K7">}</a></span>,<span class="p2"><a href="domain_1.html#K6">{</a><span class="default">0</span><a href="domain_1.html#K6">}</a></span>,<font color="Maroon">S</font>,<font color="Maroon">T</font></span>)</span> <a href="funct_2.html#R1">=</a> <font color="Maroon">T</font> )
 
<b>by </b><i><a class="ref" href="glib_000.html#T8">GLIB_000:8</a></i>;<br/>
<b>take </b>
 <a href="glib_000.html#K12">createGraph</a> <span class="p1"><a href="domain_1.html#K7">{</a><span class="default">0,1</span><a href="domain_1.html#K7">}</a></span>,<span class="p1"><a href="domain_1.html#K6">{</a><span class="default">0</span><a href="domain_1.html#K6">}</a></span>,<font color="Maroon">S</font>,<font color="Maroon">T</font>
;<br/>

<div><a class="txt" onclick="hs2(this)" href="javascript:()" title="115_2_1_3"><b>now </b></a><div class="add"><b>assume </b><a NAME="E1:115_2_1_3"/>
 <a href="card_1.html#K1">Card</a> <span class="p1">(<span class="default"><a href="glib_000.html#K6">the_Vertices_of</a> <span class="p2">(<span class="default"><a href="glib_000.html#K12">createGraph</a> <span class="p3"><a href="domain_1.html#K7">{</a><span class="default">0,1</span><a href="domain_1.html#K7">}</a></span>,<span class="p3"><a href="domain_1.html#K6">{</a><span class="default">0</span><a href="domain_1.html#K6">}</a></span>,<font color="Maroon">S</font>,<font color="Maroon">T</font></span>)</span></span>)</span> <a href="hidden.html#R1">=</a> 1
 ;<br/><b>then consider </b><font color="Maroon">x</font> being    <a href="hidden.html#M1">set</a> <b> such that </b><br/><a NAME="E3:115_2_1_3"/><i><font color="Green">E67</font></i>: 
 <a href="glib_000.html#K6">the_Vertices_of</a> <span class="p1">(<span class="default"><a href="glib_000.html#K12">createGraph</a> <span class="p2"><a href="domain_1.html#K7">{</a><span class="default">0,1</span><a href="domain_1.html#K7">}</a></span>,<span class="p2"><a href="domain_1.html#K6">{</a><span class="default">0</span><a href="domain_1.html#K6">}</a></span>,<font color="Maroon">S</font>,<font color="Maroon">T</font></span>)</span> <a href="hidden.html#R1">=</a> <span class="p1"><a href="tarski.html#K1">{</a><span class="default"><font color="Maroon">x</font></span><a href="tarski.html#K1">}</a></span>
 <b>by </b><i><a class="ref" href="card_2.html#T60">CARD_2:60</a></i>;<br/><b>thus </b><a NAME="E4:115_2_1_3"/>
contradiction
 <b>by </b><i>, , <a class="ref" href="zfmisc_1.html#T9">ZFMISC_1:9</a></i>;<br/></div><b>end;</b></div>
<b>hence </b><a NAME="E8:115_2_1"/>
( not  <a href="glib_000.html#K12">createGraph</a> <span class="p1"><a href="domain_1.html#K7">{</a><span class="default">0,1</span><a href="domain_1.html#K7">}</a></span>,<span class="p1"><a href="domain_1.html#K6">{</a><span class="default">0</span><a href="domain_1.html#K6">}</a></span>,<font color="Maroon">S</font>,<font color="Maroon">T</font> is <a href="glib_000.html#V4">trivial</a> &amp;  <a href="glib_000.html#K12">createGraph</a> <span class="p1"><a href="domain_1.html#K7">{</a><span class="default">0,1</span><a href="domain_1.html#K7">}</a></span>,<span class="p1"><a href="domain_1.html#K6">{</a><span class="default">0</span><a href="domain_1.html#K6">}</a></span>,<font color="Maroon">S</font>,<font color="Maroon">T</font> is <a href="glib_000.html#V2">finite</a> )
 <b>by </b><i><a class="ref" href="glib_000.html#D21">GLIB_000:def 21</a></i>;<br/>

<a NAME="E9:115_2_1"/><i><font color="Green">E68</font></i>: 
<span class="p1">(<span class="default"><a href="glib_000.html#K10">the_Source_of</a> <span class="p2">(<span class="default"><a href="glib_000.html#K12">createGraph</a> <span class="p3"><a href="domain_1.html#K7">{</a><span class="default">0,1</span><a href="domain_1.html#K7">}</a></span>,<span class="p3"><a href="domain_1.html#K6">{</a><span class="default">0</span><a href="domain_1.html#K6">}</a></span>,<font color="Maroon">S</font>,<font color="Maroon">T</font></span>)</span></span>)</span> <a href="funct_1.html#K1">.</a> 0 <a href="hidden.html#R1">=</a> 0
 
<b>by </b><i>, <a class="ref" href="cqc_lang.html#T6">CQC_LANG:6</a></i>;<br/>
<a NAME="E10:115_2_1"/><i><font color="Green">E69</font></i>: 
<span class="p1">(<span class="default"><a href="glib_000.html#K11">the_Target_of</a> <span class="p2">(<span class="default"><a href="glib_000.html#K12">createGraph</a> <span class="p3"><a href="domain_1.html#K7">{</a><span class="default">0,1</span><a href="domain_1.html#K7">}</a></span>,<span class="p3"><a href="domain_1.html#K6">{</a><span class="default">0</span><a href="domain_1.html#K6">}</a></span>,<font color="Maroon">S</font>,<font color="Maroon">T</font></span>)</span></span>)</span> <a href="funct_1.html#K1">.</a> 0 <a href="hidden.html#R1">=</a> 1
 
<b>by </b><i>, <a class="ref" href="cqc_lang.html#T6">CQC_LANG:6</a></i>;<br/>
<a NAME="E11:115_2_1"/>
0 <a href="hidden.html#R2">in</a>  <a href="glib_000.html#K7">the_Edges_of</a> <span class="p1">(<span class="default"><a href="glib_000.html#K12">createGraph</a> <span class="p2"><a href="domain_1.html#K7">{</a><span class="default">0,1</span><a href="domain_1.html#K7">}</a></span>,<span class="p2"><a href="domain_1.html#K6">{</a><span class="default">0</span><a href="domain_1.html#K6">}</a></span>,<font color="Maroon">S</font>,<font color="Maroon">T</font></span>)</span>
 
<b>by </b><i>, <a class="ref" href="tarski.html#D1">TARSKI:def 1</a></i>;<br/>
<a NAME="E12:115_2_1"/><b>then </b><i><font color="Green">E70</font></i>: 
0 <a href="glib_000.html#R1">Joins</a> 0,1, <a href="glib_000.html#K12">createGraph</a> <span class="p1"><a href="domain_1.html#K7">{</a><span class="default">0,1</span><a href="domain_1.html#K7">}</a></span>,<span class="p1"><a href="domain_1.html#K6">{</a><span class="default">0</span><a href="domain_1.html#K6">}</a></span>,<font color="Maroon">S</font>,<font color="Maroon">T</font>
 
<b>by </b><i>, , <a class="ref" href="glib_000.html#D15">GLIB_000:def 15</a></i>;<br/>
<div><a class="txt" onclick="hs2(this)" href="javascript:()" title="115_2_1_4"><b>now </b></a><div class="add"><b>let </b><font color="Maroon">v</font> be    <a href="hidden.html#M1">set</a> ;<br/><b>let </b><font color="Maroon">e</font> be    <a href="hidden.html#M1">set</a> ;<br/><b>assume </b><a NAME="E1:115_2_1_4"/><i><font color="Green">E71</font></i>: 
<font color="Maroon">e</font> <a href="glib_000.html#R1">Joins</a> <font color="Maroon">v</font>,<font color="Maroon">v</font>, <a href="glib_000.html#K12">createGraph</a> <span class="p1"><a href="domain_1.html#K7">{</a><span class="default">0,1</span><a href="domain_1.html#K7">}</a></span>,<span class="p1"><a href="domain_1.html#K6">{</a><span class="default">0</span><a href="domain_1.html#K6">}</a></span>,<font color="Maroon">S</font>,<font color="Maroon">T</font>
 ;<br/><b>reconsider </b><font color="Maroon">v</font> = <font color="Maroon">v</font> as   <a href="glib_000.html#NM10">Vertex</a> of <span class="p1">(<span class="default"><a href="glib_000.html#K12">createGraph</a> <span class="p2"><a href="domain_1.html#K7">{</a><span class="default">0,1</span><a href="domain_1.html#K7">}</a></span>,<span class="p2"><a href="domain_1.html#K6">{</a><span class="default">0</span><a href="domain_1.html#K6">}</a></span>,<font color="Maroon">S</font>,<font color="Maroon">T</font></span>)</span> <b>by </b><i>, <a class="ref" href="glib_000.html#T16">GLIB_000:16</a></i>;<br/><a NAME="E3:115_2_1_4"/>
<font color="Maroon">e</font> <a href="hidden.html#R2">in</a>  <a href="glib_000.html#K7">the_Edges_of</a> <span class="p1">(<span class="default"><a href="glib_000.html#K12">createGraph</a> <span class="p2"><a href="domain_1.html#K7">{</a><span class="default">0,1</span><a href="domain_1.html#K7">}</a></span>,<span class="p2"><a href="domain_1.html#K6">{</a><span class="default">0</span><a href="domain_1.html#K6">}</a></span>,<font color="Maroon">S</font>,<font color="Maroon">T</font></span>)</span>
 <b>by </b><i>, <a class="ref" href="glib_000.html#D15">GLIB_000:def 15</a></i>;<br/><a NAME="E4:115_2_1_4"/><b>then </b>
<font color="Maroon">e</font> <a href="glib_000.html#R1">Joins</a> 0,1, <a href="glib_000.html#K12">createGraph</a> <span class="p1"><a href="domain_1.html#K7">{</a><span class="default">0,1</span><a href="domain_1.html#K7">}</a></span>,<span class="p1"><a href="domain_1.html#K6">{</a><span class="default">0</span><a href="domain_1.html#K6">}</a></span>,<font color="Maroon">S</font>,<font color="Maroon">T</font>
 <b>by </b><i>, , <a class="ref" href="tarski.html#D1">TARSKI:def 1</a></i>;<br/><a NAME="E5:115_2_1_4"/><b>then </b>
( ( 0 <a href="hidden.html#R1">=</a> <font color="Maroon">v</font> &amp; 1 <a href="hidden.html#R1">=</a> <font color="Maroon">v</font> ) or ( 0 <a href="hidden.html#R1">=</a> <font color="Maroon">v</font> &amp; 1 <a href="hidden.html#R1">=</a> <font color="Maroon">v</font> ) )
 <b>by </b><i>, <a class="ref" href="glib_000.html#T18">GLIB_000:18</a></i>;<br/><b>hence </b><a NAME="E6:115_2_1_4"/>
contradiction
 ;<br/></div><b>end;</b></div>
<a NAME="E14:115_2_1"/><b>then </b><i><font color="Green">E72</font></i>: 
 <a href="glib_000.html#K12">createGraph</a> <span class="p1"><a href="domain_1.html#K7">{</a><span class="default">0,1</span><a href="domain_1.html#K7">}</a></span>,<span class="p1"><a href="domain_1.html#K6">{</a><span class="default">0</span><a href="domain_1.html#K6">}</a></span>,<font color="Maroon">S</font>,<font color="Maroon">T</font> is <a href="glib_000.html#V3">loopless</a>
 
<b>by </b><i><a class="ref" href="glib_000.html#T21">GLIB_000:21</a></i>;<br/>
<div><a class="txt" onclick="hs2(this)" href="javascript:()" title="115_2_1_5"><b>now </b></a><div class="add"><b>let </b><font color="Maroon">e1</font> be    <a href="hidden.html#M1">set</a> , <font color="Maroon">e2</font> be    <a href="hidden.html#M1">set</a> , <font color="Maroon">v1</font> be    <a href="hidden.html#M1">set</a> , <font color="Maroon">v2</font> be    <a href="hidden.html#M1">set</a> ;<br/><b>assume </b><a NAME="E1:115_2_1_5"/><i><font color="Green">E73</font></i>: 
( <font color="Maroon">e1</font> <a href="glib_000.html#R1">Joins</a> <font color="Maroon">v1</font>,<font color="Maroon">v2</font>, <a href="glib_000.html#K12">createGraph</a> <span class="p1"><a href="domain_1.html#K7">{</a><span class="default">0,1</span><a href="domain_1.html#K7">}</a></span>,<span class="p1"><a href="domain_1.html#K6">{</a><span class="default">0</span><a href="domain_1.html#K6">}</a></span>,<font color="Maroon">S</font>,<font color="Maroon">T</font> &amp; <font color="Maroon">e2</font> <a href="glib_000.html#R1">Joins</a> <font color="Maroon">v1</font>,<font color="Maroon">v2</font>, <a href="glib_000.html#K12">createGraph</a> <span class="p1"><a href="domain_1.html#K7">{</a><span class="default">0,1</span><a href="domain_1.html#K7">}</a></span>,<span class="p1"><a href="domain_1.html#K6">{</a><span class="default">0</span><a href="domain_1.html#K6">}</a></span>,<font color="Maroon">S</font>,<font color="Maroon">T</font> )
 ;<br/><b>assume </b><a NAME="E2:115_2_1_5"/><i><font color="Green">E74</font></i>: 
<font color="Maroon">e1</font> <a href="hidden.html#NR2" target="_self">&lt;&gt;</a> <font color="Maroon">e2</font>
 ;<br/><a NAME="E3:115_2_1_5"/>
( <font color="Maroon">e1</font> <a href="hidden.html#R2">in</a> <span class="p1"><a href="domain_1.html#K6">{</a><span class="default">0</span><a href="domain_1.html#K6">}</a></span> &amp; <font color="Maroon">e2</font> <a href="hidden.html#R2">in</a> <span class="p1"><a href="domain_1.html#K6">{</a><span class="default">0</span><a href="domain_1.html#K6">}</a></span> )
 <b>by </b><i>, , <a class="ref" href="glib_000.html#D15">GLIB_000:def 15</a></i>;<br/><a NAME="E4:115_2_1_5"/><b>then </b>
( <font color="Maroon">e1</font> <a href="hidden.html#R1">=</a> 0 &amp; <font color="Maroon">e2</font> <a href="hidden.html#R1">=</a> 0 )
 <b>by </b><i><a class="ref" href="tarski.html#D1">TARSKI:def 1</a></i>;<br/><b>hence </b><a NAME="E5:115_2_1_5"/>
contradiction
 <b>by </b><i/>;<br/></div><b>end;</b></div>
<a NAME="E16:115_2_1"/><b>then </b>
 <a href="glib_000.html#K12">createGraph</a> <span class="p1"><a href="domain_1.html#K7">{</a><span class="default">0,1</span><a href="domain_1.html#K7">}</a></span>,<span class="p1"><a href="domain_1.html#K6">{</a><span class="default">0</span><a href="domain_1.html#K6">}</a></span>,<font color="Maroon">S</font>,<font color="Maroon">T</font> is <a href="glib_000.html#V5">non-multi</a>
 
<b>by </b><i><a class="ref" href="glib_000.html#D22">GLIB_000:def 22</a></i>;<br/>
<b>hence </b><a NAME="E17:115_2_1"/>
 <a href="glib_000.html#K12">createGraph</a> <span class="p1"><a href="domain_1.html#K7">{</a><span class="default">0,1</span><a href="domain_1.html#K7">}</a></span>,<span class="p1"><a href="domain_1.html#K6">{</a><span class="default">0</span><a href="domain_1.html#K6">}</a></span>,<font color="Maroon">S</font>,<font color="Maroon">T</font> is <a href="glib_000.html#V7">simple</a>
 <b>by </b><i>, <a class="ref" href="glib_000.html#D24">GLIB_000:def 24</a></i>;<br/>

<a NAME="E18:115_2_1"/>
 <a href="card_1.html#K4">card</a> <span class="p1">(<span class="default"><a href="glib_000.html#K6">the_Vertices_of</a> <span class="p2">(<span class="default"><a href="glib_000.html#K12">createGraph</a> <span class="p3"><a href="domain_1.html#K7">{</a><span class="default">0,1</span><a href="domain_1.html#K7">}</a></span>,<span class="p3"><a href="domain_1.html#K6">{</a><span class="default">0</span><a href="domain_1.html#K6">}</a></span>,<font color="Maroon">S</font>,<font color="Maroon">T</font></span>)</span></span>)</span> <a href="hidden.html#R1">=</a> 2
 
<b>by </b><i>, <a class="ref" href="card_2.html#T76">CARD_2:76</a></i>;<br/>
<b>hence </b><a NAME="E19:115_2_1"/>
 <a href="glib_000.html#K12">createGraph</a> <span class="p1"><a href="domain_1.html#K7">{</a><span class="default">0,1</span><a href="domain_1.html#K7">}</a></span>,<span class="p1"><a href="domain_1.html#K6">{</a><span class="default">0</span><a href="domain_1.html#K6">}</a></span>,<font color="Maroon">S</font>,<font color="Maroon">T</font> is <a href="chord.html#V6" target="_self">chordal</a>
 <b>by </b><i/>;<br/>


</div>
