<?xml version="1.0"?>
<div class="add">

<b>take </b>
<span class="p1"><a href="domain_1.html#K6">{</a><span class="default">0</span><a href="domain_1.html#K6">}</a></span>
;<br/>

<b>thus </b><a NAME="E1:9_1_1"/>
( not <span class="p1"><a href="domain_1.html#K6">{</a><span class="default">0</span><a href="domain_1.html#K6">}</a></span> is <a href="xboole_0.html#V1">empty</a> &amp; <span class="p1"><a href="domain_1.html#K6">{</a><span class="default">0</span><a href="domain_1.html#K6">}</a></span> is <a href="finset_1.html#V1">finite</a> )
 ;<br/>


</div>
