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<div><span class="kw">theorem </span><span class="lab"><font color="Green" title="E46">Th38</font></span>: <a NAME="T38"><span class="comment"><font color="firebrick">:: XXREAL_3:38</font></span><br/></a><div class="add"> for <font color="Olive" title="b1">x</font>, <font color="Olive" title="b2">y</font> being   <a href="xxreal_0.html#NM1" title="XXREAL_0:NM.1">ExtReal</a> holds <br/> ( <font color="Olive" title="b1">x</font> <a href="xxreal_0.html#R1" title="XXREAL_0:pred.1">&lt;=</a> <font color="Olive" title="b2">y</font> iff  <a href="xxreal_3.html#K2" title="XXREAL_3:func.2">-</a> <font color="Olive" title="b2">y</font> <a href="xxreal_0.html#R1" title="XXREAL_0:pred.1">&lt;=</a>  <a href="xxreal_3.html#K2" title="XXREAL_3:func.2">-</a> <font color="Olive" title="b1">x</font> )</div></div>
