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<div><span class="kw">theorem </span><span class="lab"><font color="Green" title="E48">Th85</font></span>: <a NAME="T83"><span class="comment"><font color="firebrick">:: CLASSES5:83</font></span><br/></a><div class="add"> for <font color="Olive" title="b1">C</font> being   <a href="classes5.html#NM3" title="CLASSES5:NM.3">CategorySet</a>  holds  not <font color="Olive" title="b1">C</font> is  <a href="xboole_0.html#V1" title="XBOOLE_0:attr.1">empty</a> </div></div>
