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<b>let </b><font color="Maroon" title="c1">I</font> be    <a href="hidden.html#M1" title="HIDDEN:mode.1">set</a> ;<br/><b>let </b><font color="Maroon" title="c2">M</font> be    <a href="pboole.html#M1" title="PBOOLE:mode.1">ManySortedSet</a> of <font color="Maroon" title="c1">I</font>;<br/><b>let </b><font color="Maroon" title="c3">E</font> be    <a href="closure2.html#M1" title="CLOSURE2:mode.1">Element</a> of  <a href="closure2.html#K2" title="CLOSURE2:func.2">Bool</a> <font color="Maroon" title="c2">M</font>;<br/><b>let </b><font color="Maroon" title="c4">g</font> be   <a href="closure2.html#NM3" title="CLOSURE2:NM.3">SetOp</a> of <font color="Maroon" title="c2">M</font>;<br/>







<b>assume </b><a NAME="E1:58"/><i><font color="Green" title="E29">A1</font></i>: 
<font color="Maroon" title="c3">E</font> <a href="pboole.html#R6" title="PBOOLE:pred.6">=</a> <font color="Maroon" title="c2">M</font>
 ;<br/>

<b>assume </b><a NAME="E2:58"/>
<font color="Maroon" title="c4">g</font> is <a href="closure2.html#V7" title="CLOSURE2:attr.7">reflexive</a>
 ;<br/>

<b>hence </b><a NAME="E3:58"/>
<font color="Maroon" title="c3">E</font> <a href="pboole.html#R2" title="PBOOLE:pred.2">c=</a> <font color="Maroon" title="c4">g</font> <a href="closure2.html#K7" title="CLOSURE2:func.7">.</a> <font color="Maroon" title="c3">E</font>
 <b>by </b><i><a class="ref" href="closure2.html#D12" target="_self" title="CLOSURE2:def.12">Def12</a></i>; <i><font color="Red">:: according to </font></i><a class="ref" href="pboole.html#D13" title="PBOOLE:def.13">PBOOLE:def 13</a><br/>

<b>thus </b><a NAME="E4:58"/>
<font color="Maroon" title="c4">g</font> <a href="closure2.html#K7" title="CLOSURE2:func.7">.</a> <font color="Maroon" title="c3">E</font> <a href="pboole.html#R2" title="PBOOLE:pred.2">c=</a> <font color="Maroon" title="c3">E</font>
 <b>by </b><i><a class="txt" href="closure2.html#E1:58"><i><font color="Green" title="E29">A1</font></i></a>, <a class="ref" href="pboole.html#D23" title="PBOOLE:def.23">PBOOLE:def 23</a></i>;<br/>


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