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<a NAME="E1:41_1_1"/>
for <font color="Olive">p</font> being  <a href="pre_topc.html#NM2">Point</a> of <span class="p1">(<span class="default"><a href="yellow_8.html#K1" target="_self">CofinTop</a> <font color="Maroon">X</font></span>)</span> holds  <span class="p1"><a href="domain_1.html#K6">{</a><span class="default"><font color="Olive">p</font></span><a href="domain_1.html#K6">}</a></span> is <a href="pre_topc.html#V4">closed</a>
 
<b>by </b><i/>;<br/>
<b>hence </b><a NAME="E2:41_1_1"/>
 <a href="yellow_8.html#K1" target="_self">CofinTop</a> <font color="Maroon">X</font> <a href="urysohn1.html#NR1" target="_self">is_T1</a> 
 <b>by </b><i><a class="ref" href="urysohn1.html#T27">URYSOHN1:27</a></i>;<br/>


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