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    • Neighbourhood Semantics for Graded Modal Logic 

      Chen, Jinsheng; van Ditmarsch, Hans; Greco, Giuseppe; Tzimoulis, Apostolos (Wydawnictwo Uniwersytetu Łódzkiego, 2021-07-14)
      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 ...