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<div><span class="kw">theorem </span><a NAME="T41"><span class="comment"><font color="firebrick">:: XXREAL_2:41</font></span><br/></a><div class="add"> for <font color="Olive" title="b1">X</font> being   <a href="membered.html#V2" title="MEMBERED:attr.2">ext-real-membered</a>   <a href="hidden.html#M2" title="HIDDEN:mode.2">set</a>  holds   <a href="xxreal_0.html#K1" title="XXREAL_0:func.1">+infty</a>  is    <a href="xxreal_2.html#M1" title="XXREAL_2:mode.1">UpperBound</a> of <font color="Olive" title="b1">X</font></div></div>
