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<div><span class="kw">theorem </span><span class="lab"><font color="Green" title="E17">Th42</font></span>: <a NAME="T41"><span class="comment"><font color="firebrick">:: GLIBPRE1:41</font></span><br/></a><div class="add"> for <font color="Olive" title="b1">G</font> being   <a href="glib_000.html#NM2" title="GLIB_000:NM.2">_Graph</a><br/>  for <font color="Olive" title="b2">v</font>, <font color="Olive" title="b3">w</font> being   <a href="glib_000.html#NM10" title="GLIB_000:NM.10">Vertex</a> of <font color="Olive" title="b1">G</font> holds <br/> ( <font color="Olive" title="b2">v</font>,<font color="Olive" title="b3">w</font> <a href="chord.html#R1" title="CHORD:pred.1">are_adjacent</a>  iff <font color="Olive" title="b3">w</font> <a href="tarski.html#R2" title="TARSKI:pred.2">in</a> <font color="Olive" title="b2">v</font> <a href="glib_000.html#K38" title="GLIB_000:func.38">.allNeighbors()</a>  )</div></div>
