Let A be a finite set. Say A has five elements. (a) Can you find a...

Let A be a finite set. Say A has five elements.

(a) Can you find a function g : A → A which is injective but not surjective? Explain your answer.

(b) Can you find a function f : A → A which is surjective but not injective? Explain your answer

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Colby Messinger answered 1 year ago

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