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<div><span class="kw">theorem </span><a NAME="T29"><span class="comment"><font color="firebrick">:: YELLOW18:29</font></span><br/></a><div class="add"> for <font color="Olive" title="b1">A</font>, <font color="Olive" title="b2">B</font>, <font color="Olive" title="b3">C</font> being   <a href="altcat_1.html#NM4" title="ALTCAT_1:NM.4">category</a>  st <font color="Olive" title="b1">A</font>,<font color="Olive" title="b2">B</font> <a href="yellow18.html#R3" title="YELLOW18:pred.3">are_dual</a>  &amp; <font color="Olive" title="b2">B</font>,<font color="Olive" title="b3">C</font> <a href="yellow18.html#R3" title="YELLOW18:pred.3">are_dual</a>  holds <br/><font color="Olive" title="b1">A</font>,<font color="Olive" title="b3">C</font> <a href="yellow18.html#R1" title="YELLOW18:pred.1">are_equivalent</a> </div></div>
