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<div><span class="kw">theorem </span><span class="lab"><font color="Green" title="E24">Th17</font></span>: <a NAME="T23"><span class="comment"><font color="firebrick">:: ALTCAT_1:23</font></span><br/></a><div class="add">(  <a href="altcat_1.html#K7" title="ALTCAT_1:func.7">EnsCat</a> <span class="p1"><a href="tarski.html#K1" title="TARSKI:func.1">{</a><span class="default"><a href="numbers.html#K5" title="NUMBERS:func.5">0</a></span><a href="tarski.html#K1" title="TARSKI:func.1">}</a></span> is  <a href="altcat_1.html#V14" title="ALTCAT_1:attr.14">pseudo-discrete</a>  &amp;  <a href="altcat_1.html#K7" title="ALTCAT_1:func.7">EnsCat</a> <span class="p1"><a href="tarski.html#K1" title="TARSKI:func.1">{</a><span class="default"><a href="numbers.html#K5" title="NUMBERS:func.5">0</a></span><a href="tarski.html#K1" title="TARSKI:func.1">}</a></span> is 1 <a href="struct_0.html#V13" title="STRUCT_0:attr.13">-element</a>  )</div></div>
