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<b>let </b><font color="Maroon">Y</font> be  <a href="tdlat_3.html#V1" target="_self">discrete</a>  <a href="pre_topc.html#L1">TopStruct</a> ;<br/><b>let </b><font color="Maroon">A</font> be   <a href="struct_0.html#NM2">Subset</a> of <font color="Maroon">Y</font>;<br/>



<a NAME="E1:14"/><i><font color="Green">E21</font></i>: 
the <a href="pre_topc.html#U1">topology</a> of <font color="Maroon">Y</font> <a href="hidden.html#R1">=</a>  <a href="pcomps_1.html#K1">bool</a> the <a href="struct_0.html#U1">carrier</a> of <font color="Maroon">Y</font>
 
<b>by </b><i/>;<br/>
<b>thus </b><a NAME="E2:14"/>
the <a href="struct_0.html#U1">carrier</a> of <font color="Maroon">Y</font> <a href="subset_1.html#K6">\</a> <font color="Maroon">A</font> <a href="hidden.html#R2">in</a> the <a href="pre_topc.html#U1">topology</a> of <font color="Maroon">Y</font>
 <b>by </b><i/>;<br/>


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