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<b>thus </b>6 = 
 <a href="ordinal1.html#K1">succ</a> 5

<br/>.= 
5 <a href="xboole_0.html#K2">\/</a> <span class="p1"><a href="tarski.html#K1">{</a><span class="default">5</span><a href="tarski.html#K1">}</a></span>
<b>by </b><i><a class="ref" href="ordinal1.html#D1">ORDINAL1:def 1</a></i>
<br/>.= 
<span class="p1"><a href="enumset1.html#K4">{</a><span class="default">0,1,2,3,4,5</span><a href="enumset1.html#K4">}</a></span>
<b>by </b><i><a class="ref" href="card_1.html#T22" target="_self">Th22</a>, <a class="ref" href="enumset1.html#T55">ENUMSET1:55</a></i>
;<br/>


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