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<b>let </b><font color="Maroon" title="c2">X</font> be  non <a href="xboole_0.html#V1" title="XBOOLE_0:attr.1">empty</a>  <a href="hidden.html#M1" title="HIDDEN:mode.1">set</a> ;<br/><b>let </b><font color="Maroon" title="c3">X0</font> be    <a href="hidden.html#M1" title="HIDDEN:mode.1">set</a> ;<br/><b>let </b><font color="Maroon" title="c4">A</font> be  <a href="tex_2.html#V1" title="TEX_2:attr.1">proper</a> <a href="struct_0.html#NM2" title="STRUCT_0:NM.2">Subset</a> of <span class="p1">(<span class="default"><font color="Maroon" title="c3">X0</font> <a href="topgen_3.html#K7" title="TOPGEN_3:func.7">-DiscreteTop</a> <font color="Maroon" title="c2">X</font></span>)</span>;<br/>





<a NAME="E1:62"/>
the <a href="struct_0.html#U1" title="STRUCT_0:sel.1">carrier</a> of <span class="p1">(<span class="default"><font color="Maroon" title="c3">X0</font> <a href="topgen_3.html#K7" title="TOPGEN_3:func.7">-DiscreteTop</a> <font color="Maroon" title="c2">X</font></span>)</span> <a href="hidden.html#R1" title="HIDDEN:pred.1">=</a> <font color="Maroon" title="c2">X</font>
 
<b>by </b><i><a class="ref" href="topgen_3.html#D8" target="_self" title="TOPGEN_3:def.8">Def8</a></i>;<br/>
<a NAME="E2:62"/><b>then </b><i><font color="Green" title="E45">A1</font></i>: 
<font color="Maroon" title="c2">X</font> <a href="hidden.html#NR2" title="HIDDEN:NR.2">&lt;&gt;</a> <font color="Maroon" title="c4">A</font>
 
<b>by </b><i><a class="ref" href="tex_2.html#T5" title="TEX_2:th.5">TEX_2:5</a></i>;<br/>
<b>thus </b> <a href="tops_1.html#K1" title="TOPS_1:func.1">Int</a> <font color="Maroon" title="c4">A</font> = 
 <a href="cqc_lang.html#K2" title="CQC_LANG:func.2">IFEQ</a> <font color="Maroon" title="c4">A</font>,<font color="Maroon" title="c2">X</font>,<font color="Maroon" title="c4">A</font>,<span class="p1">(<span class="default"><font color="Maroon" title="c4">A</font> <a href="subset_1.html#K8" title="SUBSET_1:func.8">/\</a> <font color="Maroon" title="c3">X0</font></span>)</span>
<b>by </b><i><a class="ref" href="topgen_3.html#D8" target="_self" title="TOPGEN_3:def.8">Def8</a></i>
<br/>.= 
<font color="Maroon" title="c4">A</font> <a href="subset_1.html#K8" title="SUBSET_1:func.8">/\</a> <font color="Maroon" title="c3">X0</font>
<b>by </b><i><a class="txt" href="topgen_3.html#E2:62"><i><font color="Green" title="E45">A1</font></i></a>, <a class="ref" href="cqc_lang.html#D1" title="CQC_LANG:def.1">CQC_LANG:def 1</a></i>
;<br/>


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