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<div><span class="kw">theorem </span><a NAME="T15"><span class="comment"><font color="firebrick">:: ORDERS_1:15</font></span><br/></a><div class="add"> for <font color="Olive" title="b1">X</font> being    <a href="hidden.html#M2" title="HIDDEN:mode.2">set</a> <br/>  for <font color="Olive" title="b2">O</font> being   <a href="orders_1.html#NM4" title="ORDERS_1:NM.4">Order</a> of <font color="Olive" title="b1">X</font> holds   <a href="relat_1.html#K1" title="RELAT_1:func.1">field</a> <font color="Olive" title="b2">O</font> <a href="hidden.html#R1" title="HIDDEN:pred.1">=</a> <font color="Olive" title="b1">X</font></div></div>
