<?xml version="1.0"?>
<div>:: <span class="kw">deftheorem </span>   defines <a href="subset_1.html#K3" title="SUBSET_1:func.3">`</a> <a onclick="hs(this)" href="javascript:()">SUBSET_1:def 4 : <br/></a><span> for <font color="Olive" title="b1">E</font> being    <a href="hidden.html#M2" title="HIDDEN:mode.2">set</a> <br/>  for <font color="Olive" title="b2">A</font> being   <a href="subset_1.html#NM2" title="SUBSET_1:NM.2">Subset</a> of <font color="Olive" title="b1">E</font> holds  <font color="Olive" title="b2">A</font> <a href="subset_1.html#K3" title="SUBSET_1:func.3">`</a>  <a href="hidden.html#R1" title="HIDDEN:pred.1">=</a> <font color="Olive" title="b1">E</font> <a href="xboole_0.html#K4" title="XBOOLE_0:func.4">\</a> <font color="Olive" title="b2">A</font>;<br/></span></div>
