Abstract
We show that subspaces of the space \({\mathbb{Q}}\) of rational numbers give rise to uncountably many d-logics over K4 without the finite model property.
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Bezhanishvili, G., Lucero-Bryan, J. Subspaces of \({\mathbb{Q}}\) whose d-logics do not have the FMP. Arch. Math. Logic 51, 661–670 (2012). https://doi.org/10.1007/s00153-012-0290-y
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DOI: https://doi.org/10.1007/s00153-012-0290-y