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Exercise 50 - Chapter 1

edited April 2018 in Exercises

Choose two sets \(X\) and \(Y\) with at least three elements each and choose a surjective, non-identity function \(f: X \to Y\) between them. Write down two different partitions \(P\) and \(Q\) of \(Y\), and then find \(f^{\ast}P\) and \(f^{\ast}Q\).

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