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<div><span class="kw">theorem </span><span class="lab"><font color="Green" title="E3">Th3</font></span>: <a NAME="T3"><span class="comment"><font color="firebrick">:: CLASSES5:3</font></span><br/></a><div class="add"> <a href="fib_num2.html#K3" title="FIB_NUM2:func.3">EvenNAT</a>  is  <a href="card_3.html#V5" title="CARD_3:attr.5">denumerable</a> </div></div>
