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  3. can someone help me with number 3bc 4 and 5...

Question: can someone help me with number 3bc 4 and 5...

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(3) Determine the power set P(A) and its cardinality |P(A) for (a) A a, b (b) A = {a,(b), (c) A a, [b,0,0. 4) Decide whether the following statements are true of false. (a) If {a) E P(A), then (a} ¢ A. (b) If X and Y are finite sets with Y X+1, then IPY)|> IP(X)+2 (c) If W, X, Y, and Z are subsets of z, y, z with W- XY- Z 2, then at least two of the four sets are equal. (5) Give examples of sets X, Y, and Z such that Xメ but X-Z-Y-Z.

can someone help me with number 3(b,c), 4 and 5 with all the necessary steps? Thank you!

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