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<div><span class="kw">theorem </span><span class="lab"><font color="Green" title="E13">Th15</font></span>: <a NAME="T15"><span class="comment"><font color="firebrick">:: WAYBEL20:15</font></span><br/></a><div class="add"> for <font color="Olive" title="b1">L</font>, <font color="Olive" title="b2">M</font> being   non  <a href="struct_0.html#V2" title="STRUCT_0:attr.2">empty</a>   <a href="orders_2.html#L1" title="ORDERS_2:struct.1">RelStr</a>   st <font color="Olive" title="b1">L</font>,<font color="Olive" title="b2">M</font> <a href="waybel_1.html#R5" title="WAYBEL_1:pred.5">are_isomorphic</a>  &amp; <font color="Olive" title="b1">L</font> is  <a href="orders_2.html#V3" title="ORDERS_2:attr.3">reflexive</a>  holds <br/><font color="Olive" title="b2">M</font> is  <a href="orders_2.html#V3" title="ORDERS_2:attr.3">reflexive</a> </div></div>
