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<a NAME="E1:90_1_1"/>
not  <a href="ordinal1.html#K5" title="ORDINAL1:func.5">omega</a>  <a href="hidden.html#R2" title="HIDDEN:pred.2">in</a>  <a href="ordinal1.html#K5" title="ORDINAL1:func.5">omega</a> 
 
;<br/>
<b>hence </b><a NAME="E2:90_1_1"/>
not  <a href="ordinal1.html#K5" title="ORDINAL1:func.5">omega</a>  is <a href="finset_1.html#V1" title="FINSET_1:attr.1">finite</a>
 <b>by </b><i><a class="ref" href="card_1.html#T103" target="_self" title="CARD_1:th.103">Th103</a></i>;<br/>


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