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

<b>let </b><font color="Maroon">D</font> be    <a href="hidden.html#M1">set</a> ;<br/>

<a NAME="E1:85"/>
 <a href="xboole_0.html#K1">{}</a>  <a href="hidden.html#R1">=</a>  <a href="finseq_1.html#K6" target="_self">&lt;*&gt;</a> <font color="Maroon">D</font>
 
;<br/>
<b>hence </b><a NAME="E2:85"/>
 <a href="xboole_0.html#K1">{}</a>  <a href="hidden.html#R2">in</a> <font color="Maroon">D</font> <a href="finseq_1.html#K13" target="_self">*</a> 
 <b>by </b><i/>;<br/>


</div>
