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<b>let </b><font color="Maroon">c<sub>3</sub></font> be    <a href="glib_000.html#M3" target="_self">inducedSubgraph</a> of <font color="Maroon">c<sub>1</sub></font>,<span class="p1"><a href="domain_1.html#K6">{</a><span class="default"><font color="Maroon">c<sub>2</sub></font></span><a href="domain_1.html#K6">}</a></span>, <a href="xboole_0.html#K1">{}</a> ;<br/>

<b>reconsider </b><font color="Maroon">c<sub>4</sub></font> =  <a href="xboole_0.html#K1">{}</a>  as  <a href="finset_1.html#V1">finite</a> <a href="subset_1.html#NM2">Subset</a> of <span class="p1">(<span class="default"><font color="Maroon">c<sub>1</sub></font> <a href="glib_000.html#K22" target="_self">.edgesBetween</a> <span class="p2"><a href="domain_1.html#K6">{</a><span class="default"><font color="Maroon">c<sub>2</sub></font></span><a href="domain_1.html#K6">}</a></span></span>)</span> <b>by </b><i><a class="ref" href="xboole_1.html#T2">XBOOLE_1:2</a></i>;<br/>
<a NAME="E2:58_1_1"/>
<font color="Maroon">c<sub>3</sub></font> is    <a href="glib_000.html#M3" target="_self">inducedSubgraph</a> of <font color="Maroon">c<sub>1</sub></font>,<span class="p1"><a href="domain_1.html#K6">{</a><span class="default"><font color="Maroon">c<sub>2</sub></font></span><a href="domain_1.html#K6">}</a></span>,<font color="Maroon">c<sub>4</sub></font>
 
;<br/>
<b>hence </b><a NAME="E3:58_1_1"/>
( <font color="Maroon">c<sub>3</sub></font> is <a href="glib_000.html#V2" target="_self">finite</a> &amp; <font color="Maroon">c<sub>3</sub></font> is <a href="glib_000.html#V4" target="_self">trivial</a> )
 ;<br/>


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