What is power set? how can we write it?

1.	What is power set? how can we write it?
Answer» <P>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»

<P>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.

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What is power set? how can we write it?

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