The Logic and Metaphysics Workshop will meet on October 24th from 4:15-6:15 (NY time) in-person at the Graduate Center (Room 7314) for a talk by Rohit Parikh (CUNY).

Title: A measure of group coherence

Abstract: The Stanford Encyclopedia of Philosophy has an article on Social Epistemology and also one on group rights. Wikipedia has an article on group coherence. Clearly, groups are important and that importance is acknowledged. But what is missing is a measure of group coherence or as I shall say, groupiness. The Democratic party is a group but the Squad is a more coherent subgroup and works more closely with each other. The bees in a beehive work coherently with each other but it is not clear if this coherence is buttressed by common beliefs. The purpose of this talk, and of this project is to propose a measure of groupiness, investigate its properties, ask about the extent to which it enables group action, and about the extent to which it comports with epistemic logic and with the theory of information.​

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