Finite and infinite sets

1. Let A and B be sets and let f be a function from A to B . .f W A ! B/. Carefully complete each of the following using appropriate quantifiers: (If necessary, review the material in Section 6.3.) (a) The function f is an injection provided that : : : : (b) The function f is not an injection provided that : : : : (c) The function f is a surjection provided that : : : : (d) The function f is not a surjection provided that : : : : (e) The function f is a bijection provided that : : : :