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Dynamic Coalition Logic: Granting and Revoking Dictatorial Powers

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Logic, Rationality, and Interaction (LORI 2021)

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One of the classic formalisms for reasoning about multi-agent coalitional ability is coalition logic (CL). In CL it is possible to express what a coalition can achieve in the next step no matter what agents outside of the coalition do at the same time. We propose an extension of CL with dynamic operators that allow us to grant dictatorial powers to agents or to revoke them. In such a way we are able to reason about the dynamics of coalitional ability. We also discuss some logical properties of the proposed formalisms and compare their relative expressive power.

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    Dynamic epistemic logics with coalitional operators have been studied only in the setting of public announcements (see [8, 9]). These logics, however, are not strictly coalitional in the sense of [15] since they are defined on epistemic models, not concurrent game models.


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We thank the anonymous reviewers of the paper.

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Correspondence to Rustam Galimullin .

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Galimullin, R., Ågotnes, T. (2021). Dynamic Coalition Logic: Granting and Revoking Dictatorial Powers. In: Ghosh, S., Icard, T. (eds) Logic, Rationality, and Interaction. LORI 2021. Lecture Notes in Computer Science(), vol 13039. Springer, Cham.

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