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<b>consider </b><font color="Maroon">v</font> being    <a href="subset_1.html#M1">Element</a> of <font color="Maroon">X1</font>;<br/>
<a NAME="E2:23_1_1"/>
<font color="Maroon">v</font> <a href="hidden.html#R2">in</a> <font color="Maroon">X1</font>
 
<b>by </b><i/>;<br/>
<b>then reconsider </b><font color="Maroon">v</font> = <font color="Maroon">v</font> as   <a href="struct_0.html#NM1">Element</a> of <font color="Maroon">X</font> ;<br/>
<a NAME="E4:23_1_1"/>
<font color="Maroon">v</font> <a href="rlvect_1.html#K6">-</a> <font color="Maroon">v</font> <a href="hidden.html#R1">=</a>  <a href="rlvect_1.html#K1">0.</a> <font color="Maroon">X</font>
 
<b>by </b><i><a class="ref" href="rlvect_1.html#T28">RLVECT_1:28</a></i>;<br/>
<b>hence </b><a NAME="E5:23_1_1"/>
 <a href="rlvect_1.html#K1">0.</a> <font color="Maroon">X</font> is    <a href="subset_1.html#M1">Element</a> of <font color="Maroon">X1</font>
 <b>by </b><i>, <a class="ref" href="clvect_1.html#T23">CLVECT_1:23</a></i>;<br/>


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