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<a NAME="E1:44_1_1"/>
<font color="Maroon">b</font> <a href="binop_1.html#K2">.</a> <font color="Maroon">f</font>,<font color="Maroon">g</font> is    <a href="subset_1.html#M1">Element</a> of <font color="Maroon">F</font>
 
;<br/>
<b>hence </b><a NAME="E2:44_1_1"/>
<font color="Maroon">b</font> <a href="binop_1.html#K1">.</a> <font color="Maroon">f</font>,<font color="Maroon">g</font> is    <a href="subset_1.html#M1">Element</a> of <font color="Maroon">F</font>
 ;<br/>


</div>
