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<b>thus </b><a NAME="E1:2_1_1"/>
<font color="Maroon">c<sub>3</sub></font> <a href="domain_1.html#K3">`2</a>  is    <a href="subset_1.html#M1">Element</a> of <font color="Maroon">c<sub>2</sub></font>
 ;<br/>


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