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<b>consider </b><font color="Maroon" title="c4">f</font> being    <a href="pboole.html#M1" title="PBOOLE:mode.1">ManySortedSet</a> of <font color="Maroon" title="c1">A</font>, <font color="Maroon" title="c5">g</font> being    <a href="pboole.html#M1" title="PBOOLE:mode.1">ManySortedSet</a> of <font color="Maroon" title="c2">B</font><b> such that </b><br/><a NAME="E2:21_1_1"/><i><font color="Green" title="E6">A1</font></i>: 
<font color="Maroon" title="c3">X</font> <a href="hidden.html#R1" title="HIDDEN:pred.1">=</a> <span class="p1"><a href="index_1.html#K7" title="INDEX_1:func.7">[</a><span class="default"><font color="Maroon" title="c4">f</font>,<font color="Maroon" title="c5">g</font></span><a href="index_1.html#K7" title="INDEX_1:func.7">]</a></span>
 <b>by </b><i><a class="ref" href="index_1.html#D4" target="_self" title="INDEX_1:def.4">Def4</a></i>;<br/>
<b>thus </b><a NAME="E3:21_1_1"/>
<font color="Maroon" title="c3">X</font> <a href="mcart_1.html#K1" title="MCART_1:func.1">`1</a>  is    <a href="pboole.html#M1" title="PBOOLE:mode.1">ManySortedSet</a> of <font color="Maroon" title="c1">A</font>
 <b>by </b><i><a class="txt" href="index_1.html#E2:21_1_1"><i><font color="Green" title="E6">A1</font></i></a>, <a class="ref" href="mcart_1.html#T7" title="MCART_1:th.7">MCART_1:7</a></i>;<br/>


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