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<div><span class="kw">theorem </span><a NAME="T13"><span class="comment"><font color="firebrick">:: NUMBER12:13</font></span><br/></a><div class="add"> for <font color="Olive" title="b1">n</font> being   non  <a href="ordinal1.html#V8" title="ORDINAL1:attr.8">zero</a>  <a href="ordinal1.html#NM6" title="ORDINAL1:NM.6">Nat</a> holds  <font color="Olive" title="b1">n</font>, <a href="pepin.html#K4" title="PEPIN:func.4">Fermat</a> <font color="Olive" title="b1">n</font> <a href="int_2.html#R1" title="INT_2:pred.1">are_coprime</a>  <span class="kw">by</span> <span class="lab"><a class="ref" href="number12.html#T12" target="_self" onmouseover="rs('number12/T12')" onmouseout="rh()">T51</a></span>;<br/></div></div>
