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<div><span class="kw">theorem </span><span class="lab"><font color="Green" title="E55">Th55</font></span>: <a NAME="T55"><span class="comment"><font color="firebrick">:: GLCOLO00:55</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> holds <br/> (  not <font color="Olive" title="b1">G</font> is  <a href="glib_000.html#V3" title="GLIB_000:attr.3">loopless</a>  iff <font color="Olive" title="b1">G</font> <a href="glcolo00.html#K2" title="GLCOLO00:func.2">.vChromaticNum()</a>  <a href="hidden.html#R1" title="HIDDEN:pred.1">=</a>  <a href="numbers.html#K5" title="NUMBERS:func.5">0</a>  )</div></div>
