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

<a NAME="E1:20_1_1"/>
 <a href="card_1.html#K1" title="CARD_1:func.1">Card</a> <font color="Maroon" title="c1">p</font> <a href="hidden.html#R1" title="HIDDEN:pred.1">=</a>  <a href="card_1.html#K4" title="CARD_1:func.4">card</a> <font color="Maroon" title="c1">p</font>
 
;<br/>
<b>hence </b><a NAME="E2:20_1_1"/>
 <a href="finseq_1.html#NK3" title="FINSEQ_1:NK.3">len</a> <font color="Maroon" title="c1">p</font> is    <a href="subset_1.html#M1" title="SUBSET_1:mode.1">Element</a> of  <a href="numbers.html#K5" title="NUMBERS:func.5">NAT</a> 
 ;<br/>


</div>
