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math_proof

  • 3 years ago

let f:X-> Y be a function between two sets. Prove that the relation on X given by x~y if f(x)=f(y) is an equivalence relation

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  1. math_proof
    • 3 years ago
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    i know that i have to prove 3 things like for all x in X, f(x)=f(x) etc

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