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<b>let </b><font color="Maroon">n</font> be    <a href="subset_1.html#M1">Element</a> of  <a href="numbers.html#K5">NAT</a> ;<br/>

<a NAME="E1:74"/>
 <a href="pepin.html#K5" target="_self">Fermat</a> <font color="Maroon">n</font> <a href="hidden.html#NR2" target="_self">&lt;&gt;</a> 1
 
<b>by </b><i><a class="txt" href="pepin.html#E6"><i><font color="Green">Lemma57</font></i></a></i>;<br/>
<a NAME="E2:74"/><b>then </b>
(  <a href="pepin.html#K5" target="_self">Fermat</a> <font color="Maroon">n</font> <a href="xxreal_0.html#NR4" target="_self">&gt;</a> 1 or  <a href="pepin.html#K5" target="_self">Fermat</a> <font color="Maroon">n</font> <a href="xxreal_0.html#NR3" target="_self">&lt;</a> 1 )
 
<b>by </b><i><a class="ref" href="xxreal_0.html#T1">XXREAL_0:1</a></i>;<br/>
<a NAME="E3:74"/><b>then </b>
(  <a href="pepin.html#K5" target="_self">Fermat</a> <font color="Maroon">n</font> <a href="xxreal_0.html#NR4" target="_self">&gt;</a> 1 or  <a href="pepin.html#K5" target="_self">Fermat</a> <font color="Maroon">n</font> <a href="hidden.html#R1">=</a> 0 )
 
<b>by </b><i><a class="ref" href="nat_1.html#T39">NAT_1:39</a></i>;<br/>
<b>hence </b><a NAME="E4:74"/>
 <a href="pepin.html#K5" target="_self">Fermat</a> <font color="Maroon">n</font> <a href="xxreal_0.html#NR4" target="_self">&gt;</a> 1
 ;<br/>


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