<?xml version="1.0"?>
<div><span class="kw">theorem </span><a NAME="T40"><span class="comment"><font color="firebrick">:: FUNCT_6:40</font></span><br/></a><div class="add">( <span class="p1"><a href="funct_6.html#K5" title="FUNCT_6:func.5">&lt;:</a><span class="default"><a href="xboole_0.html#K1" title="XBOOLE_0:func.1">{}</a></span><a href="funct_6.html#K5" title="FUNCT_6:func.5">:&gt;</a></span> <a href="hidden.html#R1" title="HIDDEN:pred.1">=</a>  <a href="xboole_0.html#K1" title="XBOOLE_0:func.1">{}</a>  &amp;  <a href="funct_6.html#K6" title="FUNCT_6:func.6">Frege</a> <a href="xboole_0.html#K1" title="XBOOLE_0:func.1">{}</a> <a href="hidden.html#R1" title="HIDDEN:pred.1">=</a> <a href="xboole_0.html#K1" title="XBOOLE_0:func.1">{}</a> <a href="funcop_1.html#K17" title="FUNCOP_1:func.17">.--&gt;</a> <a href="xboole_0.html#K1" title="XBOOLE_0:func.1">{}</a> )</div></div>
