Mathematics, 20.09.2019 20:10 dmccarthey90

Let f a b and g : b -> c be maps.
(d) if g of is one-to-one and f is onto, show that g is one-to-one. (e) if go f is onto and g is one-to-one, show that f is onto.

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Let f a b and g : b -> c be maps.
(d) if g of is one-to-one and f is onto, show that g is...