Question: If : X ? Y is any function, : ? :f ? f is a homomorphism. ring1) prove that if (f)=0 then f=0.2)

If : X ? Y is any function, : ? :f

If : X ? Y is any function, : ? :f ? f • ô is a homomorphism. ring1) prove that if (f)=0 then f=0.2) show that if p is injective then p* is surjective?

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