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<div><span class="kw">theorem </span><span class="lab"><font color="Green" title="E2">Th4</font></span>: <a NAME="T2"><span class="comment"><font color="firebrick">:: GLPACY00:2</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">T</font> being   <a href="glib_001.html#NM4" title="GLIB_001:NM.4">Trail</a> of <font color="Olive" title="b1">G</font> holds  <font color="Olive" title="b2">T</font> <a href="glib_001.html#K15" title="GLIB_001:func.15">.length()</a>  <a href="hidden.html#R1" title="HIDDEN:pred.1">=</a>  <a href="card_1.html#K4" title="CARD_1:func.4">card</a> <span class="p1">(<span class="default"><font color="Olive" title="b2">T</font> <a href="glib_001.html#K14" title="GLIB_001:func.14">.edges()</a></span>)</span></div></div>
