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<div><span class="kw">theorem </span><span class="lab"><font color="Green" title="E31">Th43</font></span>: <a NAME="T45"><span class="comment"><font color="firebrick">:: INT_1:45</font></span><br/></a><div class="add"> for <font color="Olive" title="b1">r</font> being   <a href="xreal_0.html#NM1" title="XREAL_0:NM.1">Real</a> holds <br/> (  <a href="int_1.html#K3" title="INT_1:func.3">frac</a> <font color="Olive" title="b1">r</font> <a href="hidden.html#R1" title="HIDDEN:pred.1">=</a>  <a href="numbers.html#K5" title="NUMBERS:func.5">0</a>  iff <font color="Olive" title="b1">r</font> is  <a href="int_1.html#V1" title="INT_1:attr.1">integer</a>  )</div></div>
