Seminar series

The Department of Philosophy, Logic and Scientific Method hosts a variety of seminars during term time, each exploring a different area of philosophy. All seminars are free and open to everyone - no registration is required. Seating is available on a first-come, first-served basis, so please arrive on time. Seminars are held in our dedicated seminar room, LAK 2.06, in the Lakatos Building on the LSE campus.

Most events offer a hybrid option and are recorded for later viewing on our YouTube channel. With seminars scheduled on different days throughout the week, it’s a great opportunity to engage regularly with thought-provoking ideas.

If you would like to stay informed about our weekly seminars, please sign up for our weekly newsletter.

Sigma Club

The Sigma Club is a historic lecture series on the philosophy and foundations of physics, founded in 1987 by Michael Redhead at Cambridge, and moved to LSE in 1997 where it is now hosted by the CPNSS. The event usually takes place on Mondays, please check our events calendar for more information.

Popper Seminar

The Popper Seminars are the continuation of the great lecture series convened by Karl Popper and later Imre Lakatos at LSE, throughout the entirety of their careers. Originally held every Tuesday at 2pm, the only day that Popper would come into the office, the Popper Seminar now continues to serve as the department’s principal lecture series, convening roughly once each month during regular term time. Please check our events calendar for more information.

Choice Group

The LSE Choice Group is a group of philosophers, political scientists and economists based mainly at the LSE and with a shared interest in the theory of rational decision making in individuals and groups and its application to economic, political and social questions. The group meets on Wednesday evenings from 16:30 to 18:00. Please check our events calendar for more information or sign up to the Choice Group events newsletter.

Conjectures and Refutations

Conjectures and Refutations is a seminar series for philosophers and scientists with a shared interest in the philosophy of science. The seminars cover topics in the philosophy of science broadly understood, with a special focus on general philosophy of science and those branches of science not already covered by the Choice Group and Sigma Club. Conjectures and Refutations is a venue for scientifically informed philosophy as well as philosophically informed science.

Law, Ethics & Justice (LEJ) Group

The LEJ Group hosts speakers who present the best new work in moral, political, and legal philosophy. They meet on Tuesday afternoons, the starting time varies between 4:00pm and 4:30pm. The seminar is followed by a visit to the pub. Please check our events calendar for more information.