1. Blackburn, P., de Rijke, M., Venema, Y.: Modal Logic, Volume 53 of Cambridge Tracts in Theoretical Computer Science. Cambridge University Press, Cambridge (2001)
2. Chagrov, A., Zakharyaschev, M.: Modal Logic, Volume 35 of Oxford Logic Guides. Oxford University Press, Oxford (1997)
3. De Grey, A.D.N.J.: The chromatic number of the plane is at least 5. arXiv preprint arXiv:1804.02385 (2018)
4. Ding, Y., Liu, J., Wang, Y.: Someone knows that local reasoning on hypergraphs is a weakly aggregative modal logic. Synthese 201(2), 46 (2023)
5. de Rijke, M.: The modal logic of inequality. J. Symb. Log. 57(2), 566–584 (1992)