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<div><span class="kw">theorem </span><a NAME="T28"><span class="comment"><font color="firebrick">:: SRINGS_3:28</font></span><br/></a><div class="add"><span class="p1"> { <span class="default"> <font color="Olive" title="b1">I</font> where <font color="Olive" title="b1">I</font> is   <a href="measure5.html#NM1" title="MEASURE5:NM.1">Interval</a> : verum </span> } </span>  is    <a href="srings_3.html#M2" title="SRINGS_3:mode.2">semialgebra_of_sets</a> of  <a href="numbers.html#K1" title="NUMBERS:func.1">REAL</a> </div></div>
