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<b>reconsider </b><font color="Maroon">c<sub>3</sub></font> = <font color="Maroon">c<sub>2</sub></font> as    <a href="fraenkel.html#M2">Element</a> of  <a href="fraenkel.html#K1">Funcs</a> <font color="Maroon">c<sub>1</sub></font>,<a href="margrel1.html#K6">BOOLEAN</a>  ;<br/>
<a NAME="E2:10_1_1"/>
 <a href="valuat_1.html#K5">'not'</a> <font color="Maroon">c<sub>3</sub></font> is    <a href="fraenkel.html#M2">Element</a> of  <a href="fraenkel.html#K1">Funcs</a> <font color="Maroon">c<sub>1</sub></font>,<a href="margrel1.html#K6">BOOLEAN</a> 
 
;<br/>
<b>hence </b><a NAME="E3:10_1_1"/>
 <a href="valuat_1.html#K3">'not'</a> <font color="Maroon">c<sub>2</sub></font> is    <a href="subset_1.html#M1">Element</a> of  <a href="bvfunc_1.html#K3" target="_self">BVF</a> <font color="Maroon">c<sub>1</sub></font>
 ;<br/>


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