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<div><span class="kw">theorem </span><a NAME="T9"><span class="comment"><font color="firebrick">:: CLASSES5:9</font></span><br/></a><div class="add"> for <font color="Olive" title="b1">C</font> being   <a href="cat_1.html#V1" title="CAT_1:attr.1">strict</a>  <a href="cat_1.html#NM4" title="CAT_1:NM.4">Category</a> holds  <span class="p1">(<span class="default"><font color="Olive" title="b1">C</font> <a href="oppcat_1.html#K1" title="OPPCAT_1:func.1">opp</a></span>)</span> <a href="oppcat_1.html#K1" title="OPPCAT_1:func.1">opp</a>  <a href="hidden.html#R1" title="HIDDEN:pred.1">=</a> <font color="Olive" title="b1">C</font></div></div>
