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 …

Unified correspondence

W Conradie, S Ghilardi, A Palmigiano - Johan van Benthem on logic and …, 2014‏ - Springer
The present chapter is aimed at giving a conceptual exposition of the mathematical
principles underlying Sahlqvist correspondence theory. These principles are argued to be …

[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 …

Algebraic proof theory for substructural logics: cut-elimination and completions

A Ciabattoni, N Galatos, K Terui - Annals of Pure and Applied Logic, 2012‏ - Elsevier
We carry out a unified investigation of two prominent topics in proof theory and order
algebra: cut-elimination and completion, in the setting of substructural logics and residuated …

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 …

Multi-type display calculus for dynamic epistemic logic

S Frittella, G Greco, A Kurz… - Journal of Logic and …, 2016‏ - ieeexplore.ieee.org
In the present article, we introduce a multi-type display calculus for dynamic epistemic logic,
which we refer to as Dynamic Calculus. The display approach is suitable to modularly chart …

Sahlqvist theory for impossible worlds

A Palmigiano, S Sourabh, Z Zhao - Journal of Logic and …, 2017‏ - academic.oup.com
We extend unified correspondence theory to Kripke frames with impossible worlds and their
associated regular modal logics. These are logics the modal connectives of which are not …

[HTML][HTML] Algebraic semantics and model completeness for intuitionistic public announcement logic

M Ma, A Palmigiano, M Sadrzadeh - Annals of Pure and Applied Logic, 2014‏ - Elsevier
In the present paper, we start studying epistemic updates using the standard toolkit of duality
theory. We focus on public announcements, which are the simplest epistemic actions, and …

[PDF][PDF] Constructive canonicity of inductive inequalities

W Conradie, A Palmigiano - Logical Methods in Computer …, 2020‏ - lmcs.episciences.org
We prove the canonicity of inductive inequalities in a constructive meta-theory, for classes of
logics algebraically captured by varieties of normal and regular lattice expansions. This …