<?xml version="1.0"?>
<div><span class="kw">theorem </span><a NAME="T20"><span class="comment"><font color="firebrick">:: NUMBER09:20</font></span><br/></a><div class="add"> for <font color="Olive" title="b1">c</font> being   <a href="ordinal1.html#NM6" title="ORDINAL1:NM.6">Nat</a>  st <font color="Olive" title="b1">c</font> <a href="number07.html#R5" title="NUMBER07:pred.5">is_a_product_of_two_different_primes</a>  holds <br/><font color="Olive" title="b1">c</font> is  <a href="number09.html#V1" title="NUMBER09:attr.1">a_product_of_two_primes</a>  ;<br/></div></div>
