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<div><span class="kw">theorem </span><a NAME="T15"><span class="comment"><font color="firebrick">:: ORDINAL1:15</font></span><br/></a><div class="add"> for <font color="Olive" title="b1">A</font>, <font color="Olive" title="b2">B</font> being   <a href="ordinal1.html#NM3" title="ORDINAL1:NM.3">Ordinal</a> holds  <font color="Olive" title="b1">A</font>,<font color="Olive" title="b2">B</font> <a href="xboole_0.html#R3" title="XBOOLE_0:pred.3">are_c=-comparable</a> </div></div>
