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In: Advanced Math

Let f: X→Y and g: Y→Z be both onto. Prove that g◦f is an onto function...

Let f: X→Y and g: Y→Z be both onto. Prove that g◦f is an onto function

Let f: X→Y and g: Y→Z be both onto. Prove that f◦g is an onto function

Let f: X→Y and g: Y→Z be both one to one. Prove that g◦f is an one to one function

Let f: X→Y and g: Y→Z be both one to one. Prove that f◦g is an one to one function

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