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

<b>let </b><font color="Maroon">A</font> be   <a href="ordinal1.html#NM2">Ordinal</a>;<br/>

<a NAME="E1:74"/>
(  <a href="xboole_0.html#K1">{}</a>  <a href="hidden.html#R1">=</a> <a href="xboole_0.html#K1">{}</a>  <a href="ordinal2.html#K11">*^</a> <font color="Maroon">A</font> &amp; ( <font color="Maroon">A</font> <a href="hidden.html#R1">=</a>  <a href="xboole_0.html#K1">{}</a>  or <font color="Maroon">A</font> <a href="hidden.html#NR2" target="_self">&lt;&gt;</a>  <a href="xboole_0.html#K1">{}</a>  ) )
 
<b>by </b><i><a class="ref" href="ordinal2.html#T52">ORDINAL2:52</a></i>;<br/>
<b>hence </b><a NAME="E2:74"/>
<a href="xboole_0.html#K1">{}</a>  <a href="ordinal3.html#K6" target="_self">div^</a> <font color="Maroon">A</font> <a href="hidden.html#R1">=</a>  <a href="xboole_0.html#K1">{}</a> 
 <b>by </b><i>, </i>;<br/>

<b>thus </b><a NAME="E3:74"/>
<a href="xboole_0.html#K1">{}</a>  <a href="ordinal3.html#K7" target="_self">mod^</a> <font color="Maroon">A</font> <a href="hidden.html#R1">=</a>  <a href="xboole_0.html#K1">{}</a> 
 <b>by </b><i/>;<br/>

<b>thus </b><font color="Maroon">A</font> <a href="ordinal3.html#K7" target="_self">mod^</a> <a href="xboole_0.html#K1">{}</a>  = 
<font color="Maroon">A</font> <a href="ordinal3.html#K5" target="_self">-^</a> <a href="xboole_0.html#K1">{}</a> 
<b>by </b><i><a class="ref" href="ordinal2.html#T55">ORDINAL2:55</a></i>
<br/>.= 
<font color="Maroon">A</font>
<b>by </b><i/>
;<br/>


</div>
