Question

what is power set .....​

Answer 1

Answer:

In mathematics, the power set (or powerset) of any set S is the set of all subsets of S, including the empty set and S itself, variously denoted as P(S), (S), ℘(S) (using the "Weierstrass p"), P(S), ℙ(S), or, identifying the powerset of S with the set of all functions from S to a given set of two elements, 2S.

Answer 2

Answer:

Power set

The number of subsets with k elements in the power set of a set with n elements is given by the number of combinations, C(n, k), also called binomial coefficients. For example, the power set of a set with three elements, has: ... C(3, 3) = 1 subset with 3 elements (the original set itself).