Math 31 Homework #23 Our minds are finite, yet even in those circumstances of finitude, we are surrounded by possibilities that are infinite, and the purpose of human life is to grasp as much as we can out of that infinitude. Unknown

	Reading Read what we will cover in class on 2/26: Chapter 13 When reading Chapter 13 pay special attention to the following concepts: zero-divisors, integral domain, cancellation, field, Theorem 13.2 and its corollary, characteristic of a ring, Therorems 13.3, 13.4.

	Problems The following problems are due by the beginning of class on Friday 2/26. Ch 12 : 2, 4, 6, 18, 19, 22, 36, 43, 44, 45. For 4, think about Zn for a small n.