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1)the empty set is a)finite b)infinite c)a unit set d)also the universal set

2)the set of all rational numbers is a) b) c)infinite d)finite
3)every subset of a finite set is a)finite b)infinite c)equal d)equivalent
4)any subset of set is a)finite b)well-defined c)infinite d)equivalent



1) a. finite

2) c. infinite

3) d. equivalent

4) b. well-defined

not sure if right :D
1 5 1
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