Entries written in September 2008
- 09.21 Hints to exercises posted in Hints
- 09.20 Exercise 17.2.13 posted in Errata, Unsolved problems
- 09.20 Exercise 13.1.1 posted in Errata
- 09.20 Exercise 16.1.13 posted in Errata
- 09.08 Exercise 18.4.5 posted in Errata
- 09.06 Exercise 9.4.9 posted in Errata
- 09.06 Problems with the definition of a partial order posted in Errata
