Abstract
We present a static (\(\textsf{EL}_{\textsf{bc}}\)) and dynamic (\(\textsf{DEL}_{\textsf{bc}}\)) epistemic logic for budget-constrained agents, in which an agent can obtain some information in exchange for budget resources. \(\textsf{EL}_{\textsf{bc}}\) extends a standard multi-agent epistemic logic with expressions concerning agent’s budgets and formulas’ costs. \(\textsf{DEL}_{\textsf{bc}}\) extends \(\textsf{EL}_{\textsf{bc}}\) with dynamic modality “\([?_i A]\varphi \)” which reads as “\(\varphi \) holds after i’s question whether a propositional formula A is true”. In this paper we provide a sound and complete axiomatization for \(\textsf{EL}_{\textsf{bc}}\) and \(\textsf{DEL}_{\textsf{bc}}\) and show that both logics are decidable.
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Acknowledgements
This work is an output of a research project implemented as part of the Basic Research Program at the National Research University Higher School of Economics (HSE University). Also we would like to thank Evgeny Zolin, Elia Zardini and three anonymous reviewers for comments and suggestions on earlier versions of this paper.
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Dolgorukov, V., Gladyshev, M. (2023). Dynamic Epistemic Logic for Budget-Constrained Agents. In: Areces, C., Costa, D. (eds) Dynamic Logic. New Trends and Applications. DaLí 2022. Lecture Notes in Computer Science, vol 13780. Springer, Cham. https://doi.org/10.1007/978-3-031-26622-5_4
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