PH237 Half Unit
Logic, Machines, and Incompleteness
This information is for the 2026/27 session.
Course convenor
Dr Xinhe Wu
Availability
This course is available on the BSc in Philosophy and Economics, BSc in Philosophy, Logic and Scientific Method, BSc in Philosophy, Politics and Economics, BSc in Politics and Philosophy, Erasmus Reciprocal Programme of Study and Exchange Programme for Students from University of California, Berkeley. This course is freely available as an outside option to students on other programmes where regulations permit. It does not require permission. This course is available with permission to General Course students.
Requisites
Students should have taken Introduction to Logic (PH111) and obtained a grade of at least 65.
Students who have not taken PH111 should instead have taken Mathematical Proof and Analysis (MA102) or Introduction to Abstract Mathematics (MA103).
Course content
This course will focus mainly on restrictive meta-theoretic results in mathematical logic: in particular, the compactness theorem, Gödel’s incompleteness theorems, and the halting problem. Along the way, the course also cover the soundness and completeness theorems of classical logic.
In this course, we will also discuss the plethora of deep philosophical implications of these results, including but not limited to:
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Can we possibly obtain mathematical knowledge, or even just talk about the mathematical objects?
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How can we be certain that our knowledge of any formal system is reliable?
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Can mathematicians be replaced by machines/computers?
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Are human minds machines (computers)?
Teaching
15 hours of lectures and 10 hours of classes in the Winter Term.
This course has a reading week in Week 6 of Winter Term.
Formative assessment
Indicative reading
- Zach, R (2021). Sets, Logic, Computation. Available online.
- Smith, P. (2016). Godel Without (Too Many) tears. Available online.
Assessment
Exam (100%), duration: 180 Minutes in the Spring exam period.
The exam questions are chosen from a list of questions that are made available at the beginning of the academic year ("seen exam").
Key facts
Department: Philosophy, Logic and Scientific Method
Course study period: Winter Term
Unit value: Half unit
FHEQ level: Level 5
Total students 2025/26: 18
Average class size 2025/26: 9
Capped 2025/26: NoCourse selection videos
Some departments have produced short videos to introduce their courses. Please refer to the course selection videos index page for further information.
Personal development skills
- Self-management
- Problem solving
- Application of numeracy skills
- Specialist skills