2025/11/02 by Nicolas Troquard, Troquard, Nicolas
Neuroscience · Psychology · Social Sciences · #Embodied and Extended Cognition #Evolutionary Game Theory and Cooperation #FOS: Computer and information sciences #Logic in Computer Science (cs.LO) #Multiagent Systems (cs.MA) #Social Representations and Identity
paper · pdf · doi:10.48550/arxiv.2511.00888
openalex publication_date 2025/11/02 · openalex created_date 2025/11/06 · openalex updated_date 2026/07/28
We propose a structure to represent the social fabric of a group. We call it the `cohesion network' of the group. It can be seen as a graph whose vertices are strict subgroups and whose edges indicate a prescribed `pro-social behaviour' from one subgroup towards another. In social psychology, pro-social behaviours are building blocks of full-blown cooperation, which we assimilate here with `group cohesiveness'. We then define a formal framework to study cohesive group agency. To do so, we simply instantiate pro-social behaviour with the more specific relation of `successful assistance' between acting entities in a group. The relations of assistance within a group at the moment of agency constitute the social fabric of the cohesive group agency. We build our logical theory upon the logic of agency "bringing-it-about". We obtain a family of logics of cohesive group agency, one for every class of cohesion networks.