Neighbourhood semantics for graded modal logic
arXiv:2105.09202 · doi:10.18778/0138-0680.2021.12
Abstract
We introduce a class of neighbourhood frames for graded modal logic embedding Kripke frames into neighbourhood frames. This class of neighbourhood frames is shown to be first-order definable but not modally definable. We also obtain a new definition of graded bisimulation with respect to Kripke frames by modifying the definition of monotonic bisimulation.
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