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<div><span class="kw">theorem </span><a NAME="T20"><span class="comment"><font color="firebrick">:: FINANCE2:20</font></span><br/></a><div class="add"><a href="numbers.html#K1" title="NUMBERS:func.1">REAL</a> <a href="xboole_0.html#K4" title="XBOOLE_0:func.4">\</a> <a href="numbers.html#K3" title="NUMBERS:func.3">RAT</a> is    <a href="prob_1.html#M1" title="PROB_1:mode.1">Event</a> of  <a href="prob_1.html#K12" title="PROB_1:func.12">Borel_Sets</a> </div></div>
