Abstract
We present a dynamic logic for modelling legal competences, and in particular for the Hohfeldian categories of power and immunity. We argue that this logic improves on existing models by explicitly capturing the norm-changing character of legal competences, while at the same time providing a sophisticated reduction of the latter to static normative positions. The logic is shown to be completely axiomatizable; an analysis of its resulting dynamic normative positions is provided; and it is finally applied to a concrete case in German contract law to illustrate how the logic can distinguish legal ability and legal permissibility.
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Notes
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\(\ge \) is the inverse relation of \(\le \). More precisely, \(w' \ge w\) iff \(w \le w'\). There is a similar case for the preference order of actions later.
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Acknowledgments
The research reported in this paper has been supported by the PIOTR project (RO 4548/4-1] of the German Research Foundation (DFG). The first author is supported by the MOE Project of Key Research Institute of Humanities and Social Sciences in Universities [No. 12JJD720005], by the China Scholarship Council grant [CSC No. 201306380078], and by the Chair of Philosophy I, Universität Bayreuth.
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Dong, H., Roy, O. (2017). Dynamic Logic of Power and Immunity. In: Baltag, A., Seligman, J., Yamada, T. (eds) Logic, Rationality, and Interaction. LORI 2017. Lecture Notes in Computer Science(), vol 10455. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-662-55665-8_9
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DOI: https://doi.org/10.1007/978-3-662-55665-8_9
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