2. Let f A → B be a function. Prove that if g, h : B → A are inverse functions of f, then g(b) = h(b) for all 6 € B. That is, inverse function, if exists, must be unique.

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2. Let f : A → B be a function. Prove that if g, h : B → A are inverse
functions of f, then g(b) = h(b) for all b € B. That is, inverse function, if
exists, must be unique.
Transcribed Image Text:2. Let f : A → B be a function. Prove that if g, h : B → A are inverse functions of f, then g(b) = h(b) for all b € B. That is, inverse function, if exists, must be unique.
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