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<a NAME="E1:65_1_1"/>
( <font color="Maroon" title="c1">x</font> <a href="xboolean.html#K9" title="XBOOLEAN:func.9">'nor'</a> <font color="Maroon" title="c2">y</font> <a href="hidden.html#R1" title="HIDDEN:pred.1">=</a>  <a href="margrel1.html#K7" title="MARGREL1:func.7">FALSE</a>  or <font color="Maroon" title="c1">x</font> <a href="xboolean.html#K9" title="XBOOLEAN:func.9">'nor'</a> <font color="Maroon" title="c2">y</font> <a href="hidden.html#R1" title="HIDDEN:pred.1">=</a>  <a href="margrel1.html#K8" title="MARGREL1:func.8">TRUE</a>  )
 
<span class="kw">by</span> <span class="lab"><a class="ref" href="xboolean.html#D3" title="XBOOLEAN:def.3">XBOOLEAN:def 3</a></span>;<br/>
<span class="kw">hence </span><a NAME="E2:65_1_1"/>
<font color="Maroon" title="c1">x</font> <a href="xboolean.html#K9" title="XBOOLEAN:func.9">'nor'</a> <font color="Maroon" title="c2">y</font> is    <a href="subset_1.html#M1" title="SUBSET_1:mode.1">Element</a> of  <a href="margrel1.html#K6" title="MARGREL1:func.6">BOOLEAN</a> 
 ; <a class="txt" onclick="hs(this)" href="javascript:()"><span class="comment"><font color="firebrick">::  thesis: </font></span></a><span class="hide"> verum</span><br/>


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