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<div><span class="kw">theorem </span><a NAME="T26"><span class="comment"><font color="firebrick">:: NUMBER12:26</font></span><br/></a><div class="add"> for <font color="Olive" title="b1">f</font> being   <a href="valued_0.html#V7" title="VALUED_0:attr.7">increasing</a>  <a href="number06.html#NM1" title="NUMBER06:NM.1">Arithmetic_Progression</a>  st (  for <font color="Olive" title="b2">i</font> being   <a href="ordinal1.html#NM6" title="ORDINAL1:NM.6">Nat</a> holds  <font color="Olive" title="b1">f</font> <a href="nat_1.html#K8" title="NAT_1:func.8">.</a> <font color="Olive" title="b2">i</font> is   <a href="int_2.html#NM1" title="INT_2:NM.1">Prime</a> ) holds <br/> <a href="number06.html#K2" title="NUMBER06:func.2">difference</a> <font color="Olive" title="b1">f</font> is   <a href="abian.html#V1" title="ABIAN:attr.1">even</a>  <a href="ordinal1.html#NM6" title="ORDINAL1:NM.6">Nat</a></div></div>
