In indicate which of the functions in the referenced exercise are one-to-one correspondences. For each function that is a one-to-one correspondence, find the inverse function.
Exercise 11a
a. Define g: Z → Z by the rule g(n) = 4n - 5, for all integers n.
(i) Is g one-to-one? Prove or give a counterexample.
(ii) Is g onto? Prove or give a counterexample.