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

<a NAME="E1:29_1_1"/>
(  <a href="relset_1.html#K5">rng</a> <span class="p1">(<span class="default"><a href="partfun1.html#K6">id</a> <font color="Maroon">P</font></span>)</span> <a href="hidden.html#R1">=</a> <font color="Maroon">P</font> &amp;  <a href="partfun1.html#K6">id</a> <font color="Maroon">P</font> is <a href="funct_1.html#V2">one-to-one</a> )
 
<b>by </b><i><a class="ref" href="relat_1.html#T71">RELAT_1:71</a></i>;<br/>
<b>hence </b><a NAME="E2:29_1_1"/>
 <a href="relat_1.html#K6">id</a> <font color="Maroon">P</font> is    <a href="pua2mss1.html#M2" target="_self">IndexedPartition</a> of <font color="Maroon">X</font>
 <b>by </b><i/>;<br/>


</div>
