Gricean Belief Change

James P. Delgrande, Abhaya C. Nayak & Maurice Pagnucco (2005). Gricean Belief Change. Studia Logica 79 (1).
One of the standard principles of rationality guiding traditional accounts of belief change is the principle of minimal change: a reasoner's belief corpus should be modified in a minimal fashion when assimilating new information. This rationality principle has stood belief change in good stead. However, it does not deal properly with all belief change scenarios. We introduce a novel account of belief change motivated by one of Grice's maxims of conversational implicature: the reasoner's belief corpus is modified in a minimal (...)