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<div class="add">

<b>let </b><font color="Maroon">T</font> be  non <a href="struct_0.html#V3">empty</a> <a href="pre_topc.html#NM1">TopSpace</a>;<br/>

<b>set </b><font color="Maroon">TR</font> =  <a href="t_0topsp.html#K3" target="_self">T_0-reflex</a> <font color="Maroon">T</font>;<br/>
<b>set </b><font color="Maroon">R</font> =  <a href="t_0topsp.html#K1" target="_self">Indiscernibility</a> <font color="Maroon">T</font>;<br/>
<b>let </b><font color="Maroon">C</font> be    <a href="hidden.html#M1">set</a> ;<br/>

<div><b>hereby </b>
<div class="add"><b>assume </b><a NAME="E1:11_1"/>
<font color="Maroon">C</font> is   <a href="pre_topc.html#NM2">Point</a> of <span class="p1">(<span class="default"><a href="t_0topsp.html#K3" target="_self">T_0-reflex</a> <font color="Maroon">T</font></span>)</span>
 ;<br/><a NAME="E2:11_1"/><b>then </b>
<font color="Maroon">C</font> <a href="hidden.html#R2">in</a> the <a href="struct_0.html#U1">carrier</a> of <span class="p1">(<span class="default"><a href="t_0topsp.html#K3" target="_self">T_0-reflex</a> <font color="Maroon">T</font></span>)</span>
 ;<br/><a NAME="E3:11_1"/><b>then </b>
<font color="Maroon">C</font> <a href="hidden.html#R2">in</a>  <a href="t_0topsp.html#K2" target="_self">Indiscernible</a> <font color="Maroon">T</font>
 <b>by </b><i/>;<br/><a NAME="E4:11_1"/><b>then </b>
<font color="Maroon">C</font> <a href="hidden.html#R2">in</a>  <a href="eqrel_1.html#K9">Class</a> <span class="p1">(<span class="default"><a href="t_0topsp.html#K1" target="_self">Indiscernibility</a> <font color="Maroon">T</font></span>)</span>
 ;<br/><b>hence </b><a NAME="E5:11_1"/>
 ex <font color="Olive">p</font> being  <a href="pre_topc.html#NM2">Point</a> of <font color="Maroon">T</font> st <font color="Maroon">C</font> <a href="hidden.html#R1">=</a>  <a href="eqrel_1.html#K7">Class</a> <span class="p1">(<span class="default"><a href="t_0topsp.html#K1" target="_self">Indiscernibility</a> <font color="Maroon">T</font></span>)</span>,<font color="Olive">p</font>
 <b>by </b><i><a class="ref" href="eqrel_1.html#T45">EQREL_1:45</a></i>;<br/></div>
<b>end;</b></div>

<b>assume </b><a NAME="E2:11"/>
 ex <font color="Olive">p</font> being  <a href="pre_topc.html#NM2">Point</a> of <font color="Maroon">T</font> st <font color="Maroon">C</font> <a href="hidden.html#R1">=</a>  <a href="eqrel_1.html#K7">Class</a> <span class="p1">(<span class="default"><a href="t_0topsp.html#K1" target="_self">Indiscernibility</a> <font color="Maroon">T</font></span>)</span>,<font color="Olive">p</font>
 ;<br/>

<a NAME="E3:11"/><b>then </b>
<font color="Maroon">C</font> <a href="hidden.html#R2">in</a>  <a href="eqrel_1.html#K9">Class</a> <span class="p1">(<span class="default"><a href="t_0topsp.html#K1" target="_self">Indiscernibility</a> <font color="Maroon">T</font></span>)</span>
 
<b>by </b><i><a class="ref" href="eqrel_1.html#D5">EQREL_1:def 5</a></i>;<br/>
<a NAME="E4:11"/><b>then </b>
<font color="Maroon">C</font> <a href="hidden.html#R2">in</a>  <a href="t_0topsp.html#K2" target="_self">Indiscernible</a> <font color="Maroon">T</font>
 
;<br/>
<b>hence </b><a NAME="E5:11"/>
<font color="Maroon">C</font> is   <a href="pre_topc.html#NM2">Point</a> of <span class="p1">(<span class="default"><a href="t_0topsp.html#K3" target="_self">T_0-reflex</a> <font color="Maroon">T</font></span>)</span>
 <b>by </b><i/>;<br/>


</div>
