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<b>thus </b><a NAME="E1:1_1_1"/>
<font color="Maroon">f</font> <a href="funct_2.html#K3">.</a> <font color="Maroon">d</font> is    <a href="fraenkel.html#M2">Element</a> of <font color="Maroon">F</font>
 ;<br/>


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