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<div><span class="kw">theorem </span><span class="lab"><font color="Green" title="E17">Th70</font></span>: <a NAME="T13"><span class="comment"><font color="firebrick">:: FINANCE5:13</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="xreal_0.html#NM1" title="XREAL_0:NM.1">Real</a> holds  <span class="p1"><a href="rcomp_1.html#K1" title="RCOMP_1:func.1">[.</a><span class="default"><font color="Olive" title="b2">b</font>,<font color="Olive" title="b1">a</font></span><a href="rcomp_1.html#K1" title="RCOMP_1:func.1">.]</a></span> is    <a href="subset_1.html#M2" title="SUBSET_1:mode.2">Element</a> of  <a href="finance5.html#K9" title="FINANCE5:func.9">Ext_Borel_Sets</a> </div></div>
