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

<b>consider </b><font color="Maroon">j</font> being    <a href="subset_1.html#M2">Element</a> of <font color="Maroon">I</font>;<br/>
<a NAME="E2:101_1_1"/>
<font color="Maroon">a</font> <a href="group_1.html#K1">*</a> <font color="Maroon">j</font> <a href="hidden.html#R2">in</a> <span class="p1">{<span class="default"> <span class="p2">(<span class="default"><font color="Maroon">a</font> <a href="group_1.html#K1">*</a> <font color="Olive">i</font></span>)</span> where <font color="Olive">i</font> is   <a href="struct_0.html#NM1">Element</a> of <font color="Maroon">R</font> : <font color="Olive">i</font> <a href="hidden.html#R2">in</a> <font color="Maroon">I</font> </span>}</span> 
 
;<br/>
<b>hence </b><a NAME="E3:101_1_1"/>
not <font color="Maroon">a</font> <a href="ideal_1.html#K10" target="_self">*</a> <font color="Maroon">I</font> is <a href="xboole_0.html#V1">empty</a>
 ;<br/>


</div>
