<?xml version="1.0"?>
<div>:: <span class="kw">deftheorem </span>   defines <a href="setwiseo.html#K1" title="SETWISEO:func.1">{}.</a> <a onclick="hs(this)" href="javascript:()">SETWISEO:def 1 : <br/></a><span> for <font color="Olive" title="b1">X</font> being    <a href="hidden.html#M2" title="HIDDEN:mode.2">set</a>  holds   <a href="setwiseo.html#K1" title="SETWISEO:func.1">{}.</a> <font color="Olive" title="b1">X</font> <a href="hidden.html#R1" title="HIDDEN:pred.1">=</a>  <a href="xboole_0.html#K1" title="XBOOLE_0:func.1">{}</a> ;<br/></span></div>
