Question: Prove the claim below that require justification. Exercise 1.1. Let f: S T be a map. Then there is a bijection between S and the

Prove the claim below that require justification.

Exercise 1.1. Let ( f: S ightarrow T ) be a map. Then there is a bijection between ( S ) and the coproduct [ coprod_{

Exercise 1.1. Let f: S T be a map. Then there is a bijection between S and the coproduct teT f- {t}.

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