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<b>thus </b><a href="margrel1.html#K8">TRUE</a>  <a href="binarith.html#K4" target="_self">'xor'</a> <a href="margrel1.html#K7">FALSE</a>  = 
<a href="margrel1.html#K8">TRUE</a>  <a href="binarith.html#K4" target="_self">'xor'</a> <span class="p1">(<span class="default"><a href="margrel1.html#K11">'not'</a> <a href="margrel1.html#K8">TRUE</a> </span>)</span>
<b>by </b><i><a class="ref" href="margrel1.html#T41">MARGREL1:41</a></i>
<br/>.= 
 <a href="margrel1.html#K8">TRUE</a> 
<b>by </b><i><a class="ref" href="binarith.html#T17" target="_self">Th17</a></i>
;<br/>


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