$proof explanation - Prove the inverse relation $f^{-1}$ of a function $f : A\\rightarrow B$ is a function from B to A if and only if $f$ is bijective. - Mathematics Stack Exchange$

proof explanation - Prove the inverse relation $f^{-1}$ of a function $f : A\\rightarrow B$ is a function from B to A if and only if $f$ is bijective. - Mathematics Stack Exchange

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proof explanation - Prove the inverse relation $f^{-1}$ of a function $f : A\\rightarrow B$ is a function from B to A if and only if $f$ is bijective. - Mathematics Stack Exchange