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arXiv · 2512.15496

Intrinsic and relative characterization results for logics with negative modalities

Jim de Groot·João Marcos·Rodrigo Stefanes
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Abstract

We introduce simulations for modal logics with subclassical negations and restoration modalities, establish an adequacy theorem, and prove intrinsic (Hennessy-Milner-type) and relative (Van Benthem-type) characterization results. These results identify each restorative language with the fragment of first-order logic invariant under its simulations and delineate the expressive profile of modal logics with non-classical negations.

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Jim de Groot, João Marcos, Rodrigo Stefanes. 2025-12-17. Intrinsic and relative characterization results for logics with negative modalities. https://arxiv.org/abs/2512.15496

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