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

<b>thus </b><a NAME="E1:1_2_1"/>
<font color="Maroon">x</font> <a href="domain_1.html#K15">`12</a>  is    <a href="subset_1.html#M1">Element</a> of <font color="Maroon">D2</font>
 ;<br/>


</div>
