Section 1.3: Functions
Exercise 8
Let \(A\) and \(B\) be sets. Show that \(f : A \times B \to B \times A\) such that \(f(a, b) = (b, a)\) is a bijective function.
Let \(A\) and \(B\) be sets. Show that \(f : A \times B \to B \times A\) such that \(f(a, b) = (b, a)\) is a bijective function.