<?xml version="1.0"?>
<div><span class="kw">theorem </span><a NAME="T28"><span class="comment"><font color="firebrick">:: CONNSP_3:28</font></span><br/></a><div class="add"> for <font color="Olive" title="b1">GX</font> being   <a href="pre_topc.html#NM1" title="PRE_TOPC:NM.1">TopSpace</a><br/>  for <font color="Olive" title="b2">V</font>, <font color="Olive" title="b3">B</font> being   <a href="struct_0.html#NM2" title="STRUCT_0:NM.2">Subset</a> of <font color="Olive" title="b1">GX</font>  st <font color="Olive" title="b2">V</font> is  <a href="pre_topc.html#V3" title="PRE_TOPC:attr.3">open</a>  holds <br/> <a href="connsp_3.html#K4" title="CONNSP_3:func.4">Down</a> (<font color="Olive" title="b2">V</font>,<font color="Olive" title="b3">B</font>) is  <a href="pre_topc.html#V3" title="PRE_TOPC:attr.3">open</a> </div></div>
