Let A be a denumerable set. Prove that(a) the set of all 1-element subsets of A
Chapter 5, Problem 14(choose chapter or problem)
Let A be a denumerable set. Prove that(a) the set of all 1-element subsets of A isdenumerable.(b) the set of all 2-element subsets of A isdenumerable.(c) for every is denumerable.(d) the set of all finite subsets of A is denumerable.(Hint: Use Theorem 5.3.8.)
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