Module description
The course will cover the basics of set theory, the mathematical study of the infinite. Starting from the paradoxes of set-membership such as Russell’s, we will introduce the basics of naïve and axiomatic set theory, including the ideas of relations, partial orders, functions, partitions and equivalence classes, ordinal and cardinal numbers. We justify the foundational role of set theory by showing how other mathematical objects, such as natural or rational numbers, can be represented as sets. We conclude by deep philosophical puzzles on the nature of the notion of set, property instantiation, and infinity.
Assessment details
Summative assessment: 1 x 2 hour examination (100%)
Formative assessment: 4 sets of exercises
Educational aims & objectives
To introduce students to: 1) The class paradoxes, which revived philosophy of maths. 2) The theory of the transfinite. 3) Representing the natural numbers in the realm of sets, a gateway to foundations of maths. 4) Transferrable tools: Omni-usable concepts, eg function, partial/total ordering, equivalence relation. 5) Advanced tools: recursive definition, mathematical induction.
Learning outcomes
By the end of the module the students will be able to demonstrate intellectual, transferable and practicable skills appropriate to a level 6 module and in particular will be able to demonstrate: 1) An understanding of the basic notion of mathematical set theory. 2) A knowledge of fundamental paradoxes of naive set theory. 3) An understanding of the various kinds of infinities. 4) An ability to make use of the set theoretic construction of number systems. 5) An understanding of the philosophical significance of set theory.
Teaching pattern
One one-hour weekly lecture and one one-hour weekly seminar over ten weeks.
Suggested reading list
- Lecture Notes.
- Hrbacek, K., & Jech, T. (1999). Introduction to Set Theory, 220 of Pure and Applied Mathematics: A Series of Monographs and Textbooks.
- Jech, T. (2003). Set theory: The third millennium edition, revised and expanded. Springer Berlin Heidelberg.