Unified correspondence as a proof-theoretic tool

G Greco, M Ma, A Palmigiano… - Journal of Logic and …, 2018 - academic.oup.com
The present article aims at establishing formal connections between correspondence
phenomena, well known from the area of modal logic, and the theory of display calculi …

[HTML][HTML] Algorithmic correspondence and canonicity for non-distributive logics

W Conradie, A Palmigiano - Annals of Pure and Applied Logic, 2019 - Elsevier
We extend the theory of unified correspondence to a broad class of logics with algebraic
semantics given by varieties of normal lattice expansions (LEs), also known as 'lattices with …

Categories: how I learned to stop worrying and love two sorts

W Conradie, S Frittella, A Palmigiano, M Piazzai… - … , and Computation: 23rd …, 2016 - Springer
RS-frames were introduced by Gehrke as relational semantics for substructural logics. They
are two-sorted structures, based on RS-polarities with additional relations used to interpret …

Non-distributive logics: from semantics to meaning

W Conradie, A Palmigiano, C Robinson… - arXiv preprint arXiv …, 2020 - arxiv.org
We discuss an ongoing line of research in the relational (non topological) semantics of non-
distributive logics. The developments we consider are technically rooted in dual …

Rough concepts

W Conradie, S Frittella, K Manoorkar, S Nazari… - Information …, 2021 - Elsevier
The present paper proposes a novel way to unify Rough Set Theory and Formal Concept
Analysis. Our method stems from results and insights developed in the algebraic theory of …

[PDF][PDF] Possibility frames and forcing for modal logic (June 2016)

WH Holliday - 2016 - escholarship.org
This paper develops the model theory of normal modal logics based on partial “possibilities”
instead of total “worlds,” following Humberstone [1981] instead of Kripke [1963]. Possibility …

[PDF][PDF] Sahlqvist via translation

W Conradie, A Palmigiano… - Logical Methods in …, 2019 - lmcs.episciences.org
In recent years, unified correspondence has been developed as a generalized Sahlqvist
theory which applies uniformly to all signatures of normal and regular (distributive) lattice …

The logic of resources and capabilities

M Bílková, G Greco, A Palmigiano… - The Review of …, 2018 - cambridge.org
We introduce the logic LRC, designed to describe and reason about agents' abilities and
capabilities in using resources. The proposed framework bridges two—up to now—mutually …

[HTML][HTML] Modal reduction principles across relational semantics

W Conradie, A De Domenico, K Manoorkar… - Fuzzy Sets and …, 2024 - Elsevier
The present paper establishes systematic connections among the first-order correspondents
of Sahlqvist modal reduction principles in various relational semantic settings, including …

[HTML][HTML] Algebraic modal correspondence: Sahlqvist and beyond

W Conradie, A Palmigiano, S Sourabh - Journal of Logical and Algebraic …, 2017 - Elsevier
The present paper proposes a new introductory treatment of the very well known Sahlqvist
correspondence theory for classical modal logic. The first motivation for the present …