I would like to thank the
people listed below for pointing out various typos, mathematical errors or significant
improvements to proofs. Their continuous effort to improve the quality of the Tutorials is
met with my deepest gratitude. 

Jonathan
Shaw:
19Mar11: Tutorial 15, Definition 112. (improvement) 
Kulaga:
29Oct06: Tutorial 12, ExerJoanna
cise2, Part 4. (typo corrected) 
Jacob Oaknin:
8Nov04: Tutorial 13, Exercise10, Part 1. (error corrected) 
Jacob Oaknin:
14Jun04: Tutorial 13, Exercise19, Part 4. (improvement) 
Jacob Oaknin:
19Apr04: Tutorial 12, Exercise14, Part 1. (typo corrected) 
Leo Parent:
17Mar04: Tutorial 18, Exercise 31, Part 6. (typo corrected) 
Leo Parent:
26Feb04: Tutorial 18, Exercise 20, Part 1. (typo corrected) 
Leo Parent:
24Feb04: Tutorial 18, Exercise 12. (typo corrected) 
Leo Parent:
24Feb04: Tutorial 18, Exercise 18, Part 2. (typo corrected) 
Jacob Oaknin:
10Feb04: Tutorial 10, Exercise13, Part 4. (improvement) 
Leo Parent:
02Feb04: Tutorial 18, Exercise 6, Part 1. (typo corrected) 
David Odell:
16Jan04: Tutorial 20, Exercise 13. (typo corrected) 
David Odell:
16Jan04: Tutorial 20, Exercise 5, Part 4. (typo corrected) 
Leo Parent:
16Dec03: Tutorial 17, Exercise 11, Part 3. (typo corrected) 
Leo Parent:
15Dec03: Tutorial 17, Exercise 11, Part 5. (typo corrected) 
Leo Parent:
15Dec03: Tutorial 17, Theorem 106. (typo corrected) 
Leo Parent:
12Dec03: Tutorial 17, Exercise 5, Part 1. (typo corrected) 
Leo Parent:
12Dec03: Tutorial 17, Exercise 3, Part 4. (typo corrected) 
Leo Parent:
9Dec03: Tutorial 17, Exercise 1, Part 8. (typo corrected) 
Leo Parent:
9Dec03: Tutorial 17, Exercise 1, Part 6. (typo corrected) 
Leo Parent:
9Dec03: Tutorial 16, Exercise 19, Part 1. (typo corrected) 
Jacob Oaknin:
8Dec03: Tutorial 7, Theorem 29. (improvement) 
Jacob Oaknin:
8Dec03: Tutorial 6, Exercise 11, Part 1. (error
corrected) 
Jacob Oaknin:
8Dec03: Tutorial 7, Exercise 1, Part 7. (error
corrected) 
Leo Parent:
28Nov03: Tutorial 16, Exercise 12, Part 2. (typo corrected) 
Leo Parent:
21Nov03: Tutorial 16, Exercise 6, Part 3. (typo corrected) 
Leo Parent:
18Nov03: Tutorial 16, Exercise 3, Part 15. (typo corrected) 
Leo Parent:
18Nov03: Tutorial 16, Exercise 3, Part 1. (typo corrected) 
Jacob Oaknin:
10Nov03: Tutorial 5, Exercise 16. (error corrected) 
Leo Parent:
10Nov03: Tutorial 15, Exercise 12, Part 5. (typo corrected) 
Amir Hadadi:
7Nov03: Tutorial 3, Exercise 2. (improvement) 
Leo Parent:
6Nov03: Tutorial 15, Exercise 11, Part 6. (typo corrected) 
Leo Parent:
6Nov03: Tutorial 15, Exercise 9, Part 1. (typo corrected) 
Leo Parent:
6Nov03: Tutorial 15, Exercise 11, Part 2. (typo corrected) 
Leo Parent:
6Nov03: Tutorial 15, Exercise 10, Part 3. (typo corrected) 
Leo Parent:
4Nov03: Tutorial 15, Exercise 4. (typo corrected) 
Leo Parent:
31Oct03: Tutorial 4, Definition 35. (typo corrected) 
Leo Parent:
31Oct03: Tutorial 14, Exercise 1, Part 2. (typo corrected) 
Leo Parent:
22Oct03: Tutorial 14, Theorem 85. (typo corrected) 
Leo Parent:
22Oct03: Tutorial 14, Exercise 29, Part 2. (typo corrected) 
Leo Parent:
22Oct03: Tutorial 14, Exercise 28, Part 5. (typo corrected) 
Leo Parent:
20Oct03: Tutorial 14, Exercise 22 (typo corrected) 
Leo Parent:
13Oct03: Tutorial 14, Exercise 15, Part 5. (typo corrected) 
Leo Parent:
13Oct03: Tutorial 14, Exercise 13, Part 4. (typo corrected) 
Leo Parent:
6Oct03: Tutorial 14, Exercise 8, Part 1. (typo corrected) 
Leo Parent:
6Oct03: Tutorial 14, Exercise 1, Part 1. (typo corrected) 
Leo Parent:
3Oct03: Tutorial 14, Exercise 1, Part 2. (typo corrected) 
Leo Parent:
1Oct03: Tutorial 3, Exercise 5, Part 8. (typo corrected) 
Leo Parent:
29Sep03: Tutorial 13, Exercise 23, Part 5. (typo corrected) 
Leo Parent:
29Sep03: Tutorial 13, Theorem 76. (typo corrected) 
Leo Parent:
29Sep03: Tutorial 13, Exercise 18, Part 1. (typo corrected) 
Leo Parent:
29Sep03: Tutorial 13, Exercise 17. (typo corrected) 
Leo Parent:
27Sep03: Tutorial 3, Theorem 10. (typo corrected) 
Leo Parent:
27Sep03: Tutorial 3, Definition 23. (typo corrected) 
Leo Parent:
27Sep03: Tutorial 13, Exercise 14, Part 2. (typo corrected) 
Leo Parent:
27Sep03: Tutorial 13, Exercise 13, Part 1. (typo corrected) 
Leo Parent:
24Sep03: Tutorial 13, Exercise 10, Part 2. (typo corrected) 
Leo Parent:
24Sep03: Tutorial 13, Exercise 10, Part 1. (typo corrected) 
Leo Parent:
23Sep03: Tutorial 13, Theorem 71. (typo corrected) 
Leo Parent:
19Sep03: Tutorial 13, Exercise 2, Part 4 (typo corrected) 
Leo Parent:
17Sep03: Tutorial 9, Exercise 15 (typo corrected) 
Leo Parent:
17Sep03: Tutorial 7, Exercise 13, Part 5 (typo corrected) 
Leo Parent:
17Sep03: Tutorial 7, Exercise 2 (typo corrected) 
Leo Parent:
17Sep03: Tutorial 6, Exercise 14, Part 5 (typo corrected) 
Leo Parent:
17Sep03: Tutorial 5, Exercise 8 (typo corrected) 
Leo Parent:
15Sep03: Tutorial 5, Exercise 13. (error corrected) 
Jason Chung:
02Oct01: Tutorial 1, Exercise 8, Part 3. (typo corrected) 
Jason Chung:
20Sep01: Tutorial 7, Exercise 16, Part 6. (typo corrected) 
Jason Chung:
19Sep01: Tutorial 7, Exercise 14, Part 4. (typo corrected) 
Jason Chung:
17Sep01: Tutorial 7, Exercise 10, Part 1. (typo corrected) 
Jason Chung:
10Sep01: Tutorial 7, Exercise 8, Part 1. (typo corrected) 
Jason Chung:
20Aug01: Tutorial 6, Exercise 17, Part 4. (typo corrected) 
Jason Chung:
02Aug01: Tutorial 6, Exercise 2, Part 3. (typo corrected) 
Jason Chung:
23Jul01: Tutorial 5, Exercise 7, Part 4. (typo corrected) 
Jason Chung:
20Jul01: Tutorial 5, Exercise 9, Part 3. (typo corrected) 
Jason Chung:
17Jul01: Tutorial 5, Exercise 5, Part 1. (typo corrected) 
Jason Chung:
11Jul01: Tutorial 4, Exercise 19, Part 10. (typo corrected) 
Jason Chung:
05Jul01: Tutorial 4, Exercise 7, Part 1. (typo corrected) 
Jason Chung:
02Jul01: Tutorial 3, Exercise 5, Part 7. (typo corrected) 







