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<div><span class="kw">theorem </span><a NAME="T75"><span class="comment"><font color="firebrick">:: XXREAL_3:75</font></span><br/></a><div class="add"><a href="xxreal_0.html#K2" title="XXREAL_0:func.2">-infty</a> <a href="xxreal_3.html#K5" title="XXREAL_3:func.5">"</a>  <a href="hidden.html#R1" title="HIDDEN:pred.1">=</a>  <a href="numbers.html#K5" title="NUMBERS:func.5">0</a>  ;<br/></div></div>
