Provide a counter example

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Suppose f: A → B and g: B → C.

a) If f is onto, then is g ? f onto? Either provide a proof to show that this is true or provide a counter example to show that this is false.

b) If f is onto and g is one-to-one, then is then is g ? f one-to-one? Either provide a proof to show that this is true or provide a counter example to show that this is false.

Reference no: EM131407487

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