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<b>let </b><font color="Maroon">c<sub>1</sub></font> be  <a href="topgrp_1.html#V4" target="_self">BinContinuous</a> <a href="topgrp_1.html#NM2">TopGroup</a>;<br/><b>let </b><font color="Maroon">c<sub>2</sub></font> be  <a href="tops_1.html#V1">dense</a> <a href="struct_0.html#NM2">Subset</a> of <font color="Maroon">c<sub>1</sub></font>;<br/><b>let </b><font color="Maroon">c<sub>3</sub></font> be   <a href="pre_topc.html#NM2">Point</a> of <font color="Maroon">c<sub>1</sub></font>;<br/>





<a NAME="E1:102"/>
<span class="p1">(<span class="default"><a href="topgrp_1.html#K7" target="_self">*</a> <font color="Maroon">c<sub>3</sub></font></span>)</span> <a href="relset_1.html#K10">.:</a> <font color="Maroon">c<sub>2</sub></font> <a href="hidden.html#R1">=</a> <font color="Maroon">c<sub>2</sub></font> <a href="group_2.html#K4">*</a> <font color="Maroon">c<sub>3</sub></font>
 
<b>by </b><i><a class="ref" href="topgrp_1.html#T17" target="_self">Th17</a></i>;<br/>
<b>hence </b><a NAME="E2:102"/>
<font color="Maroon">c<sub>2</sub></font> <a href="group_2.html#K4">*</a> <font color="Maroon">c<sub>3</sub></font> is <a href="tops_1.html#V1">dense</a>
 <b>by </b><i><a class="ref" href="topgrp_1.html#T28" target="_self">Th28</a></i>;<br/>


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