Mathematics 223D, Introduction to effective descriptive set theory
Optional problems: You should look at them. You do not need to turn in solutions, but any solutions you do turn in will be corrected.
HW #6, due Wednesday, November 14: 2B.8, 2B.9, 2C.5, 2C.7.
HW #5, due Monday, November 5: 1I.10, 1I.16, 1I.17, 2A.6, 2A.7. Optional: 2A.4, 2A.8, 2A.9. Solutions
Note added November 4: I just realized that the optional Problem 2A.8 is misplaced---it requires facts not yet proved at this point. So don't try it---and sorry!
HW #4, due Monday, October 29: 1H.3, 1H.5, 1H.17, 1H.21, 1H.23 (long and not trivial). Optional: 1H.7, 1H.19. Solutions
HW #3, due Monday, October 22: 1F.23, 1F.25, 1F.34, 1F.35, 1F.36. Optional: 1F.37, 1F.41, 1F.42. Solutions
HW #2, due Monday, October 15: 1C.10, 1D.4, 1D.12, 1D.17, 1D.18. Optional: 1D.15, 1D.28, 1D.29. Solutions
HW #1, due Monday, October 8: 1A.5, 1A.8, 1A.10, 1B.3, 1B.19. Optional: 1A.13, 1A.14, 1B.4, 1B.12. Solutions