Give a relation r from to such that(a) r is not a function.(b) r is a function, but not
Chapter 4, Problem 2(choose chapter or problem)
Give a relation r from to such that(a) r is not a function.(b) r is a function, but not a function from A to B.(c) r is a function from A to B, with(d) r is a function from A to B,
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