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<div><span class="kw">theorem </span><span class="lab"><font color="Green" title="E140">Th153</font></span>: <a NAME="T153"><span class="comment"><font color="firebrick">:: GLCOLO00:153</font></span><br/></a><div class="add"> for <font color="Olive" title="b1">E</font> being    <a href="hidden.html#M2" title="HIDDEN:mode.2">set</a> <br/>  for <font color="Olive" title="b2">G1</font> being   <a href="glib_000.html#NM2" title="GLIB_000:NM.2">_Graph</a><br/>  for <font color="Olive" title="b3">G2</font> being    <a href="glib_007.html#M1" title="GLIB_007:mode.1">reverseEdgeDirections</a> of <font color="Olive" title="b2">G1</font>,<font color="Olive" title="b1">E</font><br/>  for <font color="Olive" title="b4">t1</font> being    <a href="glcolo00.html#M1" title="GLCOLO00:mode.1">TColoring</a> of <font color="Olive" title="b2">G1</font><br/>  for <font color="Olive" title="b5">t2</font> being    <a href="glcolo00.html#M1" title="GLCOLO00:mode.1">TColoring</a> of <font color="Olive" title="b3">G2</font>  st <font color="Olive" title="b4">t1</font> <a href="hidden.html#R1" title="HIDDEN:pred.1">=</a> <font color="Olive" title="b5">t2</font> holds <br/>( <font color="Olive" title="b4">t1</font> is  <a href="glcolo00.html#V7" title="GLCOLO00:attr.7">proper</a>  iff <font color="Olive" title="b5">t2</font> is  <a href="glcolo00.html#V7" title="GLCOLO00:attr.7">proper</a>  )</div></div>
