The Logic and Metaphysics Workshop will meet on February 24th from 2:00-4:00 in-person at the Graduate Center (Room 7395) for a talk by Eduardo Fermé (Madeira).

Title: Belief change: An introduction

Abstract: The 1985 paper by Carlos Alchourrón (1931–1996), Peter Gärdenfors, and David Makinson (AGM), “On the Logic of Theory Change: Partial Meet Contraction and Revision Functions” was the starting-point of a large and rapidly growing literature that employs formal models in the investigation of changes in belief states and databases. In this talk, the first 40 years of this development are briefly summarized. The topics covered include equivalent characterizations of AGM operations, extended representations of the belief states, change operators not included in the original framework, iterated change, applications of the model, its connections with other formal frameworks, and criticism of the model.