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

<b>consider </b><font color="Maroon">c<sub>1</sub></font> being  <a href="abian.html#V1">even</a> <a href="pythtrip.html#V1" target="_self">square</a> <a href="nat_1.html#NM1">Nat</a>;<br/>
<b>take </b>
<font color="Maroon">c<sub>1</sub></font>
;<br/>

<b>thus </b><a NAME="E2:8_1_1"/>
( <font color="Maroon">c<sub>1</sub></font> is <a href="abian.html#V1">even</a> &amp; <font color="Maroon">c<sub>1</sub></font> is <a href="pythtrip.html#V1" target="_self">square</a> )
 ;<br/>


</div>
