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The paper proposes a logical systematization of the notion of counts-as which is grounded on a very simple intuition about what counts-as statements actually mean, i.e., forms of classification. Moving from this analytical thesis the paper disentangles three semantically different readings of statements of the type X counts as Y in context C, from the weaker notion of contextual classification to the stronger notion of constitutive rule. These many ways in which counts-as can be said are then formally addressed by making use of modal logic techniques. The resulting framework allows for a formal characterization of all the involved notions and their reciprocal logical relationships.
@InProceedings{grossi_et_al:DagSemProc.07122.23,
author = {Grossi, Davide and Meyer, John-Jules and Dignum, Frank},
title = {{On the Logic of Constitutive Rules}},
booktitle = {Normative Multi-agent Systems},
pages = {1--33},
series = {Dagstuhl Seminar Proceedings (DagSemProc)},
ISSN = {1862-4405},
year = {2007},
volume = {7122},
editor = {Guido Boella and Leon van der Torre and Harko Verhagen},
publisher = {Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
address = {Dagstuhl, Germany},
URL = {https://drops.dagstuhl.de/entities/document/10.4230/DagSemProc.07122.23},
URN = {urn:nbn:de:0030-drops-9131},
doi = {10.4230/DagSemProc.07122.23},
annote = {Keywords: Constitutive rules, counts-as, modal logic.}
}