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<div><span class="kw">theorem </span><a NAME="T75"><span class="comment"><font color="firebrick">:: MEASUR12:75</font></span><br/></a><div class="add"> <a href="prob_1.html#K12" title="PROB_1:func.12">Borel_Sets</a>  <a href="tarski.html#R1" title="TARSKI:pred.1">c=</a>  <a href="measur12.html#K14" title="MEASUR12:func.14">L-Field</a> </div></div>
