Philosophy 1880: Syllabus

The syllabus is somewhat approximate and subject to change.

29 January Introductory Meeting, Chapter 1
1 February Chapter 2
Problem Set #1 due 8 February
3–8 February Chapter 3; Section 4.1
It's still worth reading Turing's original paper "On Computable Numbers", Proceedings of the London Mathematical Society s2-42 (1937), pp. 230-65 (Oxford Journals Archive). Section 9 of that paper contains a fascinating justification of his definition of computability in terms of a "conceptual analysis" of the intuitive notion. It's also worth looking at his paper "Computing Machinery and Intelligence", Mind 59 (1950), pp. 433-60 (JSTOR).
Problem Set #2 due 15 February
10–15 February Chapters 5–6
Problem Set #3 due 24 February
17–19 February Chapter 7
22 February

No Class: Presidents' Day Holiday

24 February Section 8.1
There is a handout, "Coding Turing Machine Computations", that contains the definitions of a lot of the functions we need to do that.
Problem Set #4 due 2 March
26 February–4 March Chapters 9–10
A somewhat less formal presentation of Tarski's definition of truth can be found in the handout "Tarski's Theory of Truth", which I use in other classes. Note that this definition is given for the language of arithmetic, and only for the standard interpretation of that language. But it might nonetheless prove helpful.
Problem Set #5 due 11 March
7–14 March Section 11.1; Chapter 13
There is a handout that summarizes some of the important definitions and lemmas in the proof of the Compactness Theorem.
Problem Set #6 due 21 March
16–25 March Chapters 14–15
You should have a look also at the handout on the simplified sequent calculus, which is the formal system we will actually discuss.
Problem Set #7 due 6 April
28 March–1 April

No Class: Spring Break

4–13 April Chapter 16
Problem Set #8 due 20 April
15–20 April Chapter 17
You can find a very informal exposition of one form of the diagonal lemma here. You may also find it helpful to read the only slightly more formal exposition in §10 of this document.
Problem Set #9 due 27 April
22–27 April Chapter 18
29 April-9 May Reading Period
It is not unlikely we will need an additional session or two. Just so you know.
19 May, 2pm Final Examination

Richard Heck Department of Philosophy Brown University