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<div><span class="kw">theorem </span><span class="lab"><font color="Green" title="E34">Th59</font></span>: <a NAME="T59"><span class="comment"><font color="firebrick">:: MEASURE6:59</font></span><br/></a><div class="add"> for <font color="Olive" title="b1">X</font> being   <a href="subset_1.html#NM2" title="SUBSET_1:NM.2">Subset</a> of <a href="numbers.html#K1" title="NUMBERS:func.1">REAL</a> holds <br/> ( <font color="Olive" title="b1">X</font> is  <a href="rcomp_1.html#V2" title="RCOMP_1:attr.2">closed</a>  iff <font color="Olive" title="b1">X</font> <a href="hidden.html#R1" title="HIDDEN:pred.1">=</a>  <a href="measure6.html#K5" title="MEASURE6:func.5">Cl</a> <font color="Olive" title="b1">X</font> )</div></div>
