Section 1.3: Functions
Exercise 6
Let \(A = \{1, 2, 3\}, B = \{4, 5, 6, 7\}\) and let \(f = \{(1, 4), (2, 5), (3, 6)\}\) be a function from \(A\) to \(B\). Show that \(f\) is one-one.
Let \(A = \{1, 2, 3\}, B = \{4, 5, 6, 7\}\) and let \(f = \{(1, 4), (2, 5), (3, 6)\}\) be a function from \(A\) to \(B\). Show that \(f\) is one-one.