Endogenizing Epistemic Actions

Will Nalls
(Carnegie Mellon University)
Adam Bjorndahl
(Carnegie Mellon University)

Through a series of examples, we illustrate some important drawbacks that the action logic framework suffers from in its ability to represent the dynamics of information updates. We argue that these problems stem from the fact that the action model, a central construct designed to encode agents' uncertainty about actions, is itself effectively common knowledge amongst the agents. In response to these difficulties, we motivate and propose an alternative semantics that avoids them by (roughly speaking) endogenizing the action model. We discuss the relationship to action logic, and provide a sound and complete axiomatization.

In Jérôme Lang: Proceedings Sixteenth Conference on Theoretical Aspects of Rationality and Knowledge (TARK 2017), Liverpool, UK, 24-26 July 2017, Electronic Proceedings in Theoretical Computer Science 251, pp. 426–440.
Published: 25th July 2017.

ArXived at: http://dx.doi.org/10.4204/EPTCS.251.31 bibtex PDF
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