2020/06/26 by Francesco Belardinelli, Belardinelli, Francesco, Cătălin Dima +5
Computer Science · #Logic, Reasoning, and Knowledge #Logic, programming, and type systems #Formal Methods in Verification
paper · doi:10.48550/arxiv.2006.15000
We show that a history-based variant of alternating bisimulation with imperfect information allows it to be related to a variant of Alternating-time Temporal Logic (ATL) with imperfect information by a full Hennessy-Milner theorem. The variant of ATL we consider has a common knowledge semantics, which requires that the uniform strategy available for a coalition to accomplish some goal must be common knowledge inside the coalition, while other semantic variants of ATL with imperfect information do not accommodate a Hennessy-Milner theorem. We also show that the existence of a history-based alternating bisimulation between two finite Concurrent Game Structures with imperfect information (iCGS) is undecidable.