Mathematics, 12.03.2020 00:28 TamB01

Let X = {n ∈ N : 10 ≤ n < 20}. Find examples of sets with the properties below and very brieﬂy explain why your examples work. (a) A set A ⊆N with |A| = 10 such that X \A = {10,12,14}.

(b) A set B ∈P(X) with |B| = 5.

(c) A set C ⊆P(X) with |C| = 5.

(d) A set D ⊆ X ×X with |D| = 5

(e) A set E ⊆ X such that |E|∈ E.

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Let X = {n ∈ N : 10 ≤ n < 20}. Find examples of sets with the properties below and very brieﬂy ex...

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