<?xml version="1.0"?>
<div><span class="kw">theorem </span><a NAME="T26"><span class="comment"><font color="firebrick">:: COUNTERS:26</font></span><br/></a><div class="add"> for <font color="Olive" title="b1">X</font> being   <a href="counters.html#V2" title="COUNTERS:attr.2">ext-natural-membered</a>   <a href="hidden.html#M2" title="HIDDEN:mode.2">set</a> <br/>  for <font color="Olive" title="b2">Y</font> being    <a href="hidden.html#M2" title="HIDDEN:mode.2">set</a>   st <font color="Olive" title="b2">Y</font> <a href="tarski.html#R1" title="TARSKI:pred.1">c=</a> <font color="Olive" title="b1">X</font> holds <br/><font color="Olive" title="b2">Y</font> is  <a href="counters.html#V2" title="COUNTERS:attr.2">ext-natural-membered</a>  ;<br/></div></div>
