First part: Chapter 2, problems 2.1, 2.2, 2.3, and 2.4.

Second part: Prove both parts of proposition 3.6 on page 57. In other words, prove the following two lemmas about negligible functions:

- If e1 and e2 are two negligible functions then e3, where e3(n) = e1(n)+e2(n), is also a negligible function.
- If e is a negligible function and p is a polynomial then e', where e'(n) = p(n)*e(n), is also a negligible function.

Bonus points: Chapter 2, problems 2.12 and 2.13.