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<div><span class="kw">theorem </span><span class="lab"><font color="Green" title="E13">Th5</font></span>: <a NAME="T5"><span class="comment"><font color="firebrick">:: CAT_6:5</font></span><br/></a><div class="add"> for <font color="Olive" title="b1">C</font> being    <a href="cat_6.html#L1" title="CAT_6:struct.1">CategoryStr</a>  holds <br/> ( <font color="Olive" title="b1">C</font> is  <a href="cat_6.html#V7" title="CAT_6:attr.7">right_composable</a>  iff <font color="Olive" title="b1">C</font> <a href="cat_6.html#K3" title="CAT_6:func.3">opp</a>  is  <a href="cat_6.html#V6" title="CAT_6:attr.6">left_composable</a>  )</div></div>
