<?xml version="1.0"?>
<div class="add">

<b>let </b><font color="Maroon">D1</font> be  non <a href="xboole_0.html#V1">empty</a> <a href="compts_1.html#V6">compact</a> non <a href="sppol_1.html#V2">vertical</a> <a href="struct_0.html#NM2">Subset</a> of <span class="p1">(<span class="default"><a href="euclid.html#K15">TOP-REAL</a> 2</span>)</span>;<br/>

<a NAME="E1:41"/>
(  <a href="pscomp_1.html#K15">W-bound</a> <font color="Maroon">D1</font> <a href="xxreal_0.html#R1">&lt;=</a>  <a href="pscomp_1.html#K17">E-bound</a> <font color="Maroon">D1</font> &amp;  <a href="pscomp_1.html#K15">W-bound</a> <font color="Maroon">D1</font> <a href="hidden.html#NR2" target="_self">&lt;&gt;</a>  <a href="pscomp_1.html#K17">E-bound</a> <font color="Maroon">D1</font> )
 
<b>by </b><i>, </i>;<br/>
<b>hence </b><a NAME="E2:41"/>
 <a href="pscomp_1.html#K15">W-bound</a> <font color="Maroon">D1</font> <a href="xxreal_0.html#NR3" target="_self">&lt;</a>  <a href="pscomp_1.html#K17">E-bound</a> <font color="Maroon">D1</font>
 <b>by </b><i><a class="ref" href="real_1.html#D5">REAL_1:def 5</a></i>;<br/>


</div>
