Q. Let P(S) denotes the powerset of set S. Which of the following is always true? (Solved)
1. P(P(S)) = P(S)
2. P(S) IS = P(S)
3. P(S) I P(P(S)) = {ø}
4. S € P(S)
- d. S € P(S)
1. P(P(S)) = P(S)
2. P(S) IS = P(S)
3. P(S) I P(P(S)) = {ø}
4. S € P(S)