Entirety of Chapter 1 (12 pages) First Half of Chapter 3 (9 pages) Second Half of Chapter 3 (8 pages) Combinatorial Proofs (7 pages) First Half of Chapter 5 (5 pages) Second Half of Chapter 5 (5 pages) Entirety of Chapter 6 (8 pages) Part One of Chapter 7 (6 pages) Part Two of Chapter 7 (5 pages) Part Three of Chapter 7 (3 pages) Part One of Chapter 8 (8 pages) Part Two of Chapter 8 (6 pages)