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 <a href="relat_1.html#K1">dom</a> <span class="p1">(<span class="default"><font color="Maroon">f</font> <a href="pralg_1.html#K15" target="_self">..</a> <font color="Maroon">x</font></span>)</span> = 
 <a href="relat_1.html#K1">dom</a> <font color="Maroon">f</font>
<b>by </b><i/>
<br/>.= 
<font color="Maroon">I</font>
<b>by </b><i><a class="ref" href="pboole.html#D3">PBOOLE:def 3</a></i>
;<br/>
<b>hence </b><a NAME="E2:41_1_1"/>
<font color="Maroon">f</font> <a href="pralg_1.html#K15" target="_self">..</a> <font color="Maroon">x</font> is    <a href="pboole.html#M1">ManySortedSet</a> of <font color="Maroon">I</font>
 <b>by </b><i><a class="ref" href="pboole.html#D3">PBOOLE:def 3</a></i>;<br/>


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