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<div><span class="kw">theorem </span><span class="lab"><font color="Green" title="E49">Th59</font></span>: <a NAME="T59"><span class="comment"><font color="firebrick">:: NUMBER02:59</font></span><br/></a><div class="add"> not <span class="p1">(<span class="default">4 <a href="newton.html#K11" title="NEWTON:func.11">|^</a> 4</span>)</span> <a href="nat_1.html#K1" title="NAT_1:func.1">+</a> <span class="p1">(<span class="default"><span class="p2">(<span class="default">4 <a href="nat_1.html#K1" title="NAT_1:func.1">+</a> 1</span>)</span> <a href="newton.html#K11" title="NEWTON:func.11">|^</a> 4</span>)</span> is  <a href="number02.html#V1" title="NUMBER02:attr.1">composite</a>  <span class="kw">by</span> <span class="lab"><a class="txt" href="number02.html#E60"><span class="lab"><font color="Green" title="E43">Lm5</font></span></a>, <a class="txt" href="number02.html#E61"><span class="lab"><font color="Green" title="E44">Lm6</font></span></a>, <a class="ref" href="number02.html#T15" target="_self" onmouseover="rs('number02/T15')" onmouseout="rh()">Th15</a></span>;<br/></div></div>
