Sec 1.7#8, #9, #13, #14, #15, #17 I need pdf for process and answer.EXERCISES 1.7
1. a. Prove that the function f of Example 1.7.3(b) is a one-to-one function of Nonto Z.
b. Find a one-to-one function of Z onto N.
2. *Let denote the set of odd positive integers. Prove that O-N.
3. Prove that the function f of Theorem 1.7.4 is a one-to-one function of NX N onto N.
4. a. If a, b E R with a
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