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<a NAME="E1:41_1_1"/>
<font color="Maroon" title="c2">b</font> <a href="binop_1.html#K4" title="BINOP_1:func.4">.</a> <font color="Maroon" title="c3">f</font>,<font color="Maroon" title="c4">g</font> is    <a href="subset_1.html#M1" title="SUBSET_1:mode.1">Element</a> of <font color="Maroon" title="c1">F</font>
 
;<br/>
<b>hence </b><a NAME="E2:41_1_1"/>
<font color="Maroon" title="c2">b</font> <a href="binop_1.html#K1" title="BINOP_1:func.1">.</a> <font color="Maroon" title="c3">f</font>,<font color="Maroon" title="c4">g</font> is    <a href="subset_1.html#M1" title="SUBSET_1:mode.1">Element</a> of <font color="Maroon" title="c1">F</font>
 ;<br/>


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