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<b>let </b><font color="Maroon">A</font> be    <a href="hidden.html#M1">set</a> ;<br/><b>let </b><font color="Maroon">a</font> be    <a href="subset_1.html#M2">Element</a> of  <a href="normform.html#K7">DISJOINT_PAIRS</a> <font color="Maroon">A</font>;<br/>



<b>thus </b><span class="p1">(<span class="default"><a href="setwiseo.html#K11">singleton</a> <span class="p2">(<span class="default"><a href="normform.html#K7">DISJOINT_PAIRS</a> <font color="Maroon">A</font></span>)</span></span>)</span> <a href="funct_2.html#K3">.</a> <font color="Maroon">a</font> = 
<span class="p1"><a href="heyting1.html#K2" target="_self">{</a><span class="default"><font color="Maroon">a</font></span><a href="heyting1.html#K2" target="_self">}</a></span>
<b>by </b><i><a class="ref" href="setwiseo.html#T67">SETWISEO:67</a></i>
<br/>.= 
<span class="p1">(<span class="default"><a href="heyting1.html#K4" target="_self">Atom</a> <font color="Maroon">A</font></span>)</span> <a href="funct_2.html#K3">.</a> <font color="Maroon">a</font>
<b>by </b><i/>
;<br/>


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