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Structures based on polarities have been used to provide relational semantics for propositional logics that are modelled algebraically by non-distributive lattices with additional operators. This article develops a first order notion of…

Logic · Mathematics 2023-11-08 Robert Goldblatt

We present an abstract unifying framework for interpreting Stone-type dualities; several known dualities are seen to be instances of just one topos-theoretic phenomenon, and new dualities are introduced. In fact, infinitely many new…

Category Theory · Mathematics 2011-04-06 Olivia Caramello

In this paper we show how the theory of monads can be used to deduce in a uniform manner several duality theorems involving categories of relations on one side and categories of algebras with homomorphisms preserving only some operations on…

Logic · Mathematics 2013-02-25 Dirk Hofmann , Pedro Nora

We prove a categorical duality between a class of abstract algebras of partial functions and a class of (small) topological categories. The algebras are the isomorphs of collections of partial functions closed under the operations of…

Rings and Algebras · Mathematics 2021-09-28 Brett McLean

The classical Stone duality associates to each Boolean algebra a topological space consisting of ultrafilters. Lawson's generalisation constructs a dual equivalence of categories of Boolean inverse $\land$-semigroups and Hausdorff ample…

Rings and Algebras · Mathematics 2025-10-09 Roozbeh Hazrat , Zachary Mesyan

We show how Stone duality can be extended from maps to relations. This is achieved by working order enriched and defining a relation from A to B as both an order-preserving function from the opposite of A times B to the 2-element chain and…

Logic in Computer Science · Computer Science 2021-07-07 Alexander Kurz , Andrew Moshier , Achim Jung

Extensions of Stone-type dualities have a long history in algebraic logic and have also been instrumental in proving results in algebraic language theory. We show how to extend abstract categorical dualities via monoidal adjunctions,…

Formal Languages and Automata Theory · Computer Science 2025-10-15 Fabian Lenke , Henning Urbat , Stefan Milius

From a logical point of view, Stone duality for Boolean algebras relates theories in classical propositional logic and their collections of models. The theories can be seen as presentations of Boolean algebras, and the collections of models…

Logic · Mathematics 2013-07-01 Steve Awodey , Henrik Forssell

We establish a duality between monads and monadic morphisms in any $(\infty,2)$-category and characterize monadic morphisms in a wide class of examples. This duality unifies several dualities between algebraic structures and their…

Category Theory · Mathematics 2026-03-19 Hadrian Heine

Recently in \cite{FM, FlMo}, the language of MV-algebras was extended by adding a unary operation, an internal operator, called also a state-operator. In \cite{DD1}, a stronger version of state MV-algebras, called state-morphism MV-algebras…

Functional Analysis · Mathematics 2010-06-11 Antonio Di Nola , Anatolij Dvurecenskij , Ada Lettieri

It is a classic result in modal logic that the category of modal algebras is dually equivalent to the category of descriptive frames. The latter are Kripke frames equipped with a Stone topology such that the binary relation is continuous.…

General Topology · Mathematics 2020-08-14 Guram Bezhanishvili , Luca Carai , Patrick Morandi

The notion of support provides an analogue of Stone duality, relating lattices to topological spaces. This note aims to explain in lattice theoretic terms what has been developed in the context of triangulated categories. In particular, the…

Category Theory · Mathematics 2023-07-25 Henning Krause

The term Stone-type duality often refers to a dual equivalence between a category of lattices or other partially ordered structures on one side and a category of topological structures on the other. This paper is part of a larger endeavour…

Category Theory · Mathematics 2020-09-07 Dirk Hofmann , Pedro Nora

We establish two duality theorems which refine the classical Stone duality between generalized Boolean algebras and locally compact Boolean spaces. In the first theorem we prove that the category of left-handed skew Boolean algebras whose…

Rings and Algebras · Mathematics 2015-03-18 Ganna Kudryavtseva

The theory of natural dualities provides a well-developed framework for studying Stone-like dualities induced by an algebra $\mathbf{L}$ which acts as a dualizing object when equipped with suitable topological and relational structure. The…

Logic · Mathematics 2025-05-19 Marco Abbadini , Adam Přenosil

In this paper we provide a Stone style duality for monotone semilattices by using the topological duality developed in \cite{Celani2020} for semilattices together with a topological description of their canonical extension. As an…

Logic · Mathematics 2021-09-07 Ismael Calomino , Paula Menchón , William J. Zuluaga Botero

A convexity space is a set X with a chosen family of subsets (called convex subsets) that is closed under arbitrary intersections and directed unions. There is a lot of interest in spaces that have both a convexity space and a topological…

Category Theory · Mathematics 2026-05-06 Toby Kenney

We prove a new duality theorem for the category of precontact algebras which implies the Stone Duality Theorem, its connected version obtained in arXiv:1508.02220v3, 1-44 (to appear in Topology Appl.), the recent duality theorems of…

General Topology · Mathematics 2016-03-04 G. Dimov , E. Ivanova-Dimova , D. Vakarelov

We introduce a contravariant idempotent adjunction between (i) the category of ranked monads on $\mathsf{Set}$; and (ii) the category of internal categories and internal retrofunctors in the category of locales. The left adjoint takes a…

Logic in Computer Science · Computer Science 2026-05-20 Richard Garner , Alyssa Renata , Nicolas Wu

We carry out a semantic study of the constructive modal logic CK. We provide a categorical duality linking the algebraic and birelational semantics of the logic. We then use this to prove Sahlqvist style correspondence and completeness…

Logic · Mathematics 2026-04-14 Jim de Groot , Ian Shillito , Ranald Clouston
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