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<a NAME="E1:57_1_1"/>
for <font color="Olive">i</font> being   <a href="subset_1.html#M1">Element</a> of <font color="Maroon">I</font> holds <br/> ( <span class="p1">(<span class="default"><font color="Maroon">I</font> <a href="pre_circ.html#K2">--&gt;</a> <font color="Maroon">T</font></span>)</span> <a href="waybel18.html#K4">.</a> <font color="Olive">i</font> is <a href="urysohn1.html#V1">being_T1</a> &amp; <span class="p1">(<span class="default"><font color="Maroon">I</font> <a href="pre_circ.html#K2">--&gt;</a> <font color="Maroon">T</font></span>)</span> <a href="waybel18.html#K4">.</a> <font color="Olive">i</font> is <a href="pre_topc.html#V2">TopSpace-like</a> )
 
<b>by </b><i><a class="ref" href="funcop_1.html#T13">FUNCOP_1:13</a></i>;<br/>
<b>hence </b><a NAME="E2:57_1_1"/>
 <a href="waybel18.html#K3">product</a> <span class="p1">(<span class="default"><font color="Maroon">I</font> <a href="pre_circ.html#K2">--&gt;</a> <font color="Maroon">T</font></span>)</span> is <a href="urysohn1.html#V1">being_T1</a>
 <b>by </b><i/>;<br/>


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