Question: 2. Let A = {1, 2, 3, 4}. (a) Find a function f : A - P(A) so that 1 E f(1). (b) How many

2. Let A = {1, 2, 3, 4}. (a) Find a function f : A - P(A) so that 1 E f(1). (b) How many functions f : A - P(A) are there so that 1 e f(1)? Explain. (c) How many functions f : A - P(A) are there so that i E f(i) for all i E A? Explain. (d) How many functions f : A - P(A) are there so that i E f(i) for some i E A? Explain

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