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Mr. Dubey • 52.30K Points
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Q. Let P(S) denotes the powerset of set S. Which of the following is always true?

(A) P(P(S)) = P(S)
(B) P(S) IS = P(S)
(C) P(S) I P(P(S)) = {ø}
(D) S € P(S)
Correct : Option (D)

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