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 ex <font color="Olive" title="b1">f</font> being  <a href="pboole.html#NM1" title="PBOOLE:NM.1">ManySortedSet</a> of <font color="Maroon" title="c1">A</font> ex <font color="Olive" title="b2">g</font> being  <a href="pboole.html#NM1" title="PBOOLE:NM.1">ManySortedSet</a> of <font color="Maroon" title="c2">B</font> st <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="Olive" title="b1">f</font>,<font color="Olive" title="b2">g</font></span><a href="index_1.html#K7" title="INDEX_1:func.7">]</a></span>
 
<span class="kw">by</span> <span class="lab"><a class="ref" href="index_1.html#D4" target="_self" title="INDEX_1:def.4">Def4</a></span>;<br/>
<span class="kw">hence </span><a NAME="E2:20_2_1"/>
( <font color="Maroon" title="c3">X</font> <a href="mcart_1.html#K2" title="MCART_1:func.2">`2</a>  is  <a href="funct_1.html#V1" title="FUNCT_1:attr.1">Function-like</a>  &amp; <font color="Maroon" title="c3">X</font> <a href="mcart_1.html#K2" title="MCART_1:func.2">`2</a>  is  <a href="relat_1.html#V1" title="RELAT_1:attr.1">Relation-like</a>  )
 <span class="kw">by</span> <span class="lab"><a class="ref" href="mcart_1.html#T7" title="MCART_1:th.7">MCART_1:7</a></span>; <a class="txt" onclick="hs(this)" href="javascript:()"><span class="comment"><font color="Red">::  thesis: </font></span></a><span class="hide"> verum</span><br/>


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