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<div><span class="kw">theorem </span><a NAME="T73"><span class="comment"><font color="firebrick">:: NUMBER15:73</font></span><br/></a><div class="add"> for <font color="Olive" title="b1">S</font> being   <a href="xxreal_0.html#V2" title="XXREAL_0:attr.2">positive</a>  <a href="ordinal1.html#NM6" title="ORDINAL1:NM.6">Nat</a>  holds <span class="p1"> { <span class="default"> <font color="Olive" title="b2">f</font> where <font color="Olive" title="b2">f</font> is    <a href="number15.html#M1" title="NUMBER15:mode.1">Solution_of_Sierp168</a> of <font color="Olive" title="b1">S</font> : verum </span> } </span>  is  <a href="finset_1.html#NV2" title="FINSET_1:NV.2">infinite</a> </div></div>
