Reference : Normative Change: An AGM Approach
Scientific journals : Article
Engineering, computing & technology : Computer science
http://hdl.handle.net/10993/54192
Normative Change: An AGM Approach
English
Maranhão, Juliano [University of São Paulo, Law School, São Paulo, Brazil]
Casini, Giovanni [STI-CNR, Pisa, Italy, University of Cape Town, Cape Town, South Africa]
Pigozzi, Gabriella [LAMSADE, Université Paris-Dauphine, PSL Research University, Paris, 75016, France]
van der Torre, Leon mailto [University of Luxembourg > Faculty of Science, Technology and Medicine (FSTM) > Department of Computer Science (DCS)]
2022
IfCoLog Journal of Logics and Their Applications
College Publications
9
4
787-852
Yes
International
2631-9810
[en] AGM theory ; Belief revision ; Formal analysis ; Formal modeling ; Input/output logic ; Legal rules ; Normative conflict ; Normative system
[en] Studying normative change has practical and theoretical interests. Changing legal rules poses interpretation problems to determine the content of legal rules. The question of interpretation is tightly linked to those of determining the validity and the ability to produce effects of legal rules. Different formal models of normative change seem better suited to capture these dimensions: the dimension of validity appears to be better captured by the AGM approach, whereas syntactic methods are better suited to model how rules’ effects are blocked or enabled. Historically, the AGM approach of belief revision (on which we focus in this chapter) was the first formal model of normative change. We provide a survey on the AGM approach along with the main criticisms made to it. We then turn to a formal analysis of normative change that combines AGM theory and input/output logic, allowing for a clear distinction between norms and obligations. Our approach addresses some of the difficulties of normative change, like the combination of constitutive and regulative rules (and the normative conflicts that may arise from such a combination), the revision and contraction of normative systems, as well as the contraction of normative systems that combine sets of constitutive and regulative rules. We end our chapter by highlighting and discussing some challenges and open problems of normative change in the AGM approach.
http://hdl.handle.net/10993/54192
© 2022, College Publications. All rights reserved.

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