<?xml version="1.0"?>
<div><span class="kw">theorem </span><a NAME="T53"><span class="comment"><font color="firebrick">:: MEASURE6:53</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><br/>  for <font color="Olive" title="b2">q3</font> being   <a href="xreal_0.html#NM1" title="XREAL_0:NM.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="b2">q3</font> <a href="measure6.html#K1" title="MEASURE6:func.1">++</a> <font color="Olive" title="b1">X</font> is  <a href="rcomp_1.html#V2" title="RCOMP_1:attr.2">closed</a>  )</div></div>
