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<b>let </b><font color="Maroon">X</font> be  non <a href="xboole_0.html#V1">empty</a>  <a href="hidden.html#M1">set</a> ;<br/><b>let </b><font color="Maroon">X0</font> be    <a href="hidden.html#M1">set</a> ;<br/><b>let </b><font color="Maroon">A</font> be  <a href="tex_2.html#V1">proper</a> <a href="struct_0.html#NM2">Subset</a> of <span class="p1">(<span class="default"><font color="Maroon">X0</font> <a href="topgen_3.html#K7" target="_self">-DiscreteTop</a> <font color="Maroon">X</font></span>)</span>;<br/>





<a NAME="E1:62"/>
the <a href="struct_0.html#U1">carrier</a> of <span class="p1">(<span class="default"><font color="Maroon">X0</font> <a href="topgen_3.html#K7" target="_self">-DiscreteTop</a> <font color="Maroon">X</font></span>)</span> <a href="hidden.html#R1">=</a> <font color="Maroon">X</font>
 
<b>by </b><i/>;<br/>
<a NAME="E2:62"/><b>then </b><i><font color="Green">E37</font></i>: 
<font color="Maroon">X</font> <a href="hidden.html#NR2" target="_self">&lt;&gt;</a> <font color="Maroon">A</font>
 
<b>by </b><i><a class="ref" href="tex_2.html#T5">TEX_2:5</a></i>;<br/>
<b>thus </b> <a href="tops_1.html#K1">Int</a> <font color="Maroon">A</font> = 
 <a href="cqc_lang.html#K2">IFEQ</a> <font color="Maroon">A</font>,<font color="Maroon">X</font>,<font color="Maroon">A</font>,<span class="p1">(<span class="default"><font color="Maroon">A</font> <a href="subset_1.html#K8">/\</a> <font color="Maroon">X0</font></span>)</span>
<b>by </b><i/>
<br/>.= 
<font color="Maroon">A</font> <a href="subset_1.html#K8">/\</a> <font color="Maroon">X0</font>
<b>by </b><i>, <a class="ref" href="cqc_lang.html#D1">CQC_LANG:def 1</a></i>
;<br/>


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