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Question: suppose g is a function from a to b and...

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Suppose g is a function from A to B and f is a function from B to C. Prove each of these statements.

ow at it both f and g are onto functions, then fog is also onto. Suppose that g is a function from A to B and f is a func- tion from B to C. Prove each of these statements. a) If fog is onto, then f must also be onto. b) If fog is one-to-one, then g must also be one-to-one. c) If fog is a bijection, then g is onto if and only if f is one-to-one. 35 Hind

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