From: "Arnold W. Miller" Date: Fri, 10 May 2002 11:50:49 -0500 (CDT) To: m571-1@lists.students.wisc.edu Subject: final exam Math 571 Math 571 A. Miller Final Exam: Monday May 13 2:45pm-4:45pm in Van Vleck B105 (This is our usual classroom.) The final exam will be based on the handout: "Review questions for Final" on http://www.math.wisc.edu/~miller/m571/ On Monday I will have office hours from 10-12. 403 Van Vleck. ---------------- Correction to "Review questions for Final" (thanks to Spencer Gerhard who spotted this.) 4. Should be: (c) Th(w,+,x) is interpretable in the Th(w,x,S). (d) Th(w,x,S) is undecidable. where x is multiplication. Th(w,+,x) is not interpretable Th(w,+,S) because Th(w,+,S) is decidable (Pressburger see Enderton's book). To prove 4(c) multiply out (ac+1)(bc+1) assuming a+b=c. Use what you discover to define + from x and S. This result is due to Julia Robinson.