Question

what is power set? how can we write it?

Answer 1

Step-by-step explanation:

The powerset of S is variously denoted as P(S), (S), P(S), ℙ(S), ℘(S) (using the "Weierstrass p"), or 2S. The notation 2S is used because given any set with exactly two elements, the powerset of S can be identified with the set of all functions from S into that set.

Answer 2

Answer:

Power of a set is the collection of all the subsets of a set

denoted by P(A)