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<b>consider </b><font color="Maroon">c<sub>2</sub></font> being   <a href="glib_000.html#NM10">Vertex</a> of <font color="Maroon">c<sub>1</sub></font>;<br/>
<b>take </b>
<font color="Maroon">c<sub>1</sub></font> <a href="glib_001.html#K1" target="_self">.walkOf</a> <font color="Maroon">c<sub>2</sub></font>
;<br/>

<b>thus </b><a NAME="E2:105_1_1"/>
( <font color="Maroon">c<sub>1</sub></font> <a href="glib_001.html#K1" target="_self">.walkOf</a> <font color="Maroon">c<sub>2</sub></font> is <a href="glib_001.html#V1" target="_self">closed</a> &amp; <font color="Maroon">c<sub>1</sub></font> <a href="glib_001.html#K1" target="_self">.walkOf</a> <font color="Maroon">c<sub>2</sub></font> is <a href="glib_001.html#V2" target="_self">directed</a> &amp; <font color="Maroon">c<sub>1</sub></font> <a href="glib_001.html#K1" target="_self">.walkOf</a> <font color="Maroon">c<sub>2</sub></font> is <a href="glib_001.html#V3" target="_self">trivial</a> )
 <b>by </b><i><a class="txt" href="glib_001.html#E43"><i><font color="Green">Lemma35</font></i></a></i>;<br/>


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