1. page 16, Exercises 1.1.6, 1.1.7

2. page 17, Exercises 1.1.9, 1.1.10, 1.1.11, 1.1.12, 1.1.13, 1.1.14

3. page 19, Exercise 1.2.3

4. page 20, Exercises 1.2.4, 1.2.6

5. page 21, Exercise 1.2.7

6. page 22, Exercises 1.2.9, 1.2.11, 1.2.12

7. page 23, Exercise 1.2.13

8. page 25, Exercises 1.2.18, 1.2.19

9. page 27, Exercise 1.2.21

1. Chapter Zero, Theorem 2.2.2

2. Chapter Zero, Exercises 2.2.4, 2.3.8, 2.4.4

3. Chapter Zero, Theorem 2.4.5, 2.4.6

4. Chapter Zero, Theorem 2.4.11

5. Chapter Zero, page 54, Problem 6, Problem 7

6. Chapter Zero, Exercises 1.12.1, 1.13.3, 1.14.4