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<div><b>hereby </b>
<div class="add"><b>assume </b><a NAME="E1:11_1_1_1"/><i><font color="Green" title="E6">A1</font></i>: 
<font color="Maroon" title="c2">IT</font> is <a href="prob_1.html#V1" title="PROB_1:attr.1">compl-closed</a>
 ;<br/><b>let </b><font color="Maroon" title="c3">A</font> be    <a href="hidden.html#M1" title="HIDDEN:mode.1">set</a> ;<br/><b>assume </b><a NAME="E2:11_1_1_1"/><i><font color="Green" title="E7">A2</font></i>: 
<font color="Maroon" title="c3">A</font> <a href="hidden.html#R2" title="HIDDEN:pred.2">in</a> <font color="Maroon" title="c2">IT</font>
 ;<br/><b>then reconsider </b><font color="Maroon" title="c4">A'</font> = <font color="Maroon" title="c3">A</font> as   <a href="subset_1.html#NM2" title="SUBSET_1:NM.2">Subset</a> of <font color="Maroon" title="c1">X</font> ;<br/><a NAME="E4:11_1_1_1"/>
<font color="Maroon" title="c4">A'</font> <a href="subset_1.html#K3" title="SUBSET_1:func.3">`</a>  <a href="hidden.html#R2" title="HIDDEN:pred.2">in</a> <font color="Maroon" title="c2">IT</font>
 <b>by </b><i><a class="txt" href="measure1.html#E1:11_1_1_1"><i><font color="Green" title="E6">A1</font></i></a>, <a class="txt" href="measure1.html#E2:11_1_1_1"><i><font color="Green" title="E7">A2</font></i></a>, <a class="ref" href="prob_1.html#D1" title="PROB_1:def.1">PROB_1:def 1</a></i>;<br/><b>hence </b><a NAME="E5:11_1_1_1"/>
<font color="Maroon" title="c1">X</font> <a href="subset_1.html#K6" title="SUBSET_1:func.6">\</a> <font color="Maroon" title="c3">A</font> <a href="hidden.html#R2" title="HIDDEN:pred.2">in</a> <font color="Maroon" title="c2">IT</font>
 ;<br/></div>
<b>end;</b></div>

<b>assume </b><a NAME="E2:11_1_1"/><i><font color="Green" title="E6">A3</font></i>: 
for <font color="Olive" title="b1">A</font> being   <a href="hidden.html#M1" title="HIDDEN:mode.1">set</a>   st <font color="Olive" title="b1">A</font> <a href="hidden.html#R2" title="HIDDEN:pred.2">in</a> <font color="Maroon" title="c2">IT</font> holds <br/><font color="Maroon" title="c1">X</font> <a href="subset_1.html#K6" title="SUBSET_1:func.6">\</a> <font color="Olive" title="b1">A</font> <a href="hidden.html#R2" title="HIDDEN:pred.2">in</a> <font color="Maroon" title="c2">IT</font>
 ;<br/>

<b>let </b><font color="Maroon" title="c3">A</font> be   <a href="subset_1.html#NM2" title="SUBSET_1:NM.2">Subset</a> of <font color="Maroon" title="c1">X</font>; <i><font color="Red">:: according to </font></i><a class="ref" href="prob_1.html#D1" title="PROB_1:def.1">PROB_1:def 1</a><br/>

<b>assume </b><a NAME="E3:11_1_1"/>
<font color="Maroon" title="c3">A</font> <a href="hidden.html#R2" title="HIDDEN:pred.2">in</a> <font color="Maroon" title="c2">IT</font>
 ;<br/>

<b>hence </b><a NAME="E4:11_1_1"/>
<font color="Maroon" title="c3">A</font> <a href="subset_1.html#K3" title="SUBSET_1:func.3">`</a>  <a href="hidden.html#R2" title="HIDDEN:pred.2">in</a> <font color="Maroon" title="c2">IT</font>
 <b>by </b><i><a class="txt" href="measure1.html#E2:11_1_1"><i><font color="Green" title="E6">A3</font></i></a></i>;<br/>


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