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

<b>take </b>
 <a href="subset_1.html#K1">{}</a> <font color="Maroon">c<sub>1</sub></font>
;<br/>

<b>thus </b><a NAME="E1:6_1_1"/>
(  <a href="subset_1.html#K1">{}</a> <font color="Maroon">c<sub>1</sub></font> is <a href="xboole_0.html#V1">empty</a> &amp;  <a href="subset_1.html#K1">{}</a> <font color="Maroon">c<sub>1</sub></font> is <a href="finset_1.html#V1" target="_self">finite</a> )
 ;<br/>


</div>
