Journal of Logic, Language and Information

, Volume 18, Issue 1, pp 23-53

First online:

Diversity of Agents and Their Interaction

  • Fenrong LiuAffiliated withDepartment of Philosophy, School of Humanities and Social Sciences, Tsinghua UniversityInstitute for Logic, Language and Computation (ILLC), University of Amsterdam Email author 

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Diversity of agents occurs naturally in epistemic logic, and dynamic logics of information update and belief revision. In this paper we provide a systematic discussion of different sources of diversity, such as introspection ability, powers of observation, memory capacity, and revision policies, and we show how these can be encoded in dynamic epistemic logics allowing for individual variation among agents. Next, we explore the interaction of diverse agents by looking at some concrete scenarios of communication and learning, and we propose a logical methodology to deal with these as well. We conclude with some further questions on the logic of diversity and interaction.


Dynamic epistemic logic Belief revision Diversity Interaction