Let X= {a, b, c, d}. What is {A: A∈ P(X) and |A| = 2}?

1.	Let X= {a, b, c, d}. What is {A: A∈ P(X) and \|A\| = 2}?
Answer» {A: A∈ P(X) and \|A\| = 2} = {{a, b}, {a, c}, {a, d}, {b, c}, {b, d}, {c, d}} A set is a collection of elements. A powerset is a collection of all the possible sets that can be formed of the given set.

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