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<b>take </b>
 <a href="altcat_1.html#K7">EnsCat</a> <a href="numbers.html#K5">NAT</a> 
;<br/>

<b>thus </b><a NAME="E1:68_1_1"/>
(  <a href="altcat_1.html#K7">EnsCat</a> <a href="numbers.html#K5">NAT</a>  is <a href="yellow18.html#V4" target="_self">concrete</a> &amp;  <a href="altcat_1.html#K7">EnsCat</a> <a href="numbers.html#K5">NAT</a>  is <a href="altcat_1.html#V8">quasi-functional</a> &amp;  <a href="altcat_1.html#K7">EnsCat</a> <a href="numbers.html#K5">NAT</a>  is <a href="altcat_1.html#V6">strict</a> )
 ;<br/>


</div>
