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

<b>take </b>
 <a href="numbers.html#K6" title="NUMBERS:func.6">0</a> 
;<br/>

<a NAME="E1:1_2_1"/>
 <a href="numbers.html#K6" title="NUMBERS:func.6">0</a>  <a href="hidden.html#R1" title="HIDDEN:pred.1">=</a> 2 <a href="nat_1.html#K4" title="NAT_1:func.4">*</a> <a href="numbers.html#K6" title="NUMBERS:func.6">0</a> 
 
;<br/>
<b>hence </b><a NAME="E2:1_2_1"/>
(  <a href="numbers.html#K6" title="NUMBERS:func.6">0</a>  is <a href="abian.html#V1" title="ABIAN:attr.1">even</a> &amp;  <a href="numbers.html#K6" title="NUMBERS:func.6">0</a>  is <a href="ordinal1.html#V7" title="ORDINAL1:attr.7">natural</a> )
 ;<br/>


</div>
