<?xml version="1.0"?>
<div><span class="kw">theorem </span><span class="lab"><font color="Green" title="E77">Th72</font></span>: <a NAME="T72"><span class="comment"><font color="firebrick">:: CAT_8:72</font></span><br/></a><div class="add"> for <font color="Olive" title="b1">C1</font>, <font color="Olive" title="b2">C2</font> being   <a href="cat_6.html#NM2" title="CAT_6:NM.2">category</a> holds  <font color="Olive" title="b2">C2</font> <a href="cat_8.html#K17" title="CAT_8:func.17">|^</a> <font color="Olive" title="b1">C1</font>, <a href="cat_8.html#K18" title="CAT_8:func.18">eval</a> (<font color="Olive" title="b1">C1</font>,<font color="Olive" title="b2">C2</font>) <a href="cat_8.html#R6" title="CAT_8:pred.6">is_exponent_of</a> <font color="Olive" title="b1">C1</font>,<font color="Olive" title="b2">C2</font></div></div>
