Search Results - "Galatos, Nikolaos"
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1
Gluing Residuated Lattices
Published in Order (Dordrecht) (01-10-2023)“…We introduce and characterize various gluing constructions for residuated lattices that intersect on a common subreduct, and which are subalgebras, or…”
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2
The structure of generalized BI-algebras and weakening relation algebras
Published in Algebra universalis (01-08-2020)“…Generalized bunched implication algebras (GBI-algebras) are defined as residuated lattices with a Heyting implication, and are positioned between Boolean…”
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3
Unilinear residuated lattices: axiomatization, varieties and FEP
Published in Algebra universalis (01-08-2024)“…We characterize all residuated lattices that have height equal to 3 and show that the variety they generate has continuum-many subvarieties. More generally, we…”
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Residuated frames with applications to decidability
Published in Transactions of the American Mathematical Society (01-03-2013)“…Residuated frames provide relational semantics for substructural logics and are a natural generalization of Kripke frames in intuitionistic and modal logic,…”
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Algebraic proof theory for substructural logics: Cut-elimination and completions
Published in Annals of pure and applied logic (01-03-2012)“…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…”
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Algebraic proof theory: Hypersequents and hypercompletions
Published in Annals of pure and applied logic (01-03-2017)“…We continue our program of establishing connections between proof-theoretic and order-algebraic properties in the setting of substructural logics and…”
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Cut elimination and strong separation for substructural logics: An algebraic approach
Published in Annals of pure and applied logic (01-06-2010)“…We develop a general algebraic and proof-theoretic study of substructural logics that may lack associativity, along with other structural rules. Our study…”
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From Axioms to Analytic Rules in Nonclassical Logics
Published in 2008 23rd Annual IEEE Symposium on Logic in Computer Science (01-06-2008)“…We introduce a systematic procedure to transform large classes of (Hilbert) axioms into equivalent inference rules in sequent and hypersequent calculi. This…”
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Conference Proceeding -
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Algebraization, Parametrized Local Deduction Theorem and Interpolation for Substructural Logics over FL
Published in Studia logica (01-06-2006)“…Substructural logics have received a lot of attention in recent years from the communities of both logic and algebra. We discuss the algebraization of…”
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Decidability of Lattice Equations
Published in Studia logica (01-06-2024)“…We provide an alternative proof of the decidability of the equational theory of lattices. The proof presented here is quite short and elementary…”
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11
Semiconic Idempotent Logic II: Beth Definability and Deductive Interpolation
Published in Annals of pure and applied logic (01-11-2024)Get full text
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Semiconic idempotent logic I: Structure and local deduction theorems
Published in Annals of pure and applied logic (01-07-2024)“…Semiconic idempotent logic is a common generalization of intuitionistic logic, relevance logic with mingle, and semilinear idempotent logic. It is an…”
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13
Distributive ℓ-pregroups: Generation and decidability
Published in Journal of algebra (15-06-2024)“…We show that every distributive lattice-ordered pregroup can be embedded into a functional algebra over an integral chain, thus improving the existing…”
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Distributive residuated frames and generalized bunched implication algebras
Published in Algebra universalis (01-11-2017)“…We show that all extensions of the (non-associative) Gentzen system for distributive full Lambek calculus by simple structural rules have the cut elimination…”
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15
Densification via polynomials, languages, and frames
Published in Journal of pure and applied algebra (01-03-2022)“…It is known that every countable totally ordered set can be embedded into a countable dense one. We extend this result to totally ordered commutative monoids…”
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16
From distributive ℓ-monoids to ℓ-groups, and back again
Published in Journal of algebra (01-07-2022)“…We prove that an inverse-free equation is valid in the variety LG of lattice-ordered groups (ℓ-groups) if and only if it is valid in the variety DLM of…”
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Proof theory for lattice-ordered groups
Published in Annals of pure and applied logic (01-08-2016)“…Proof-theoretic methods are developed and exploited to establish properties of the variety of lattice-ordered groups. In particular, a hypersequent calculus…”
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18
The FEP for some varieties of fully distributive knotted residuated lattices
Published in Algebra universalis (01-11-2017)“…We prove the finite embeddability property for a wide range of varieties of fully distributive residuated lattices and FL-algebras. Part of the axiomatization…”
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Twist Structures and Nelson Conuclei
Published in Studia logica (01-08-2022)“…Motivated by Kalman residuated lattices, Nelson residuated lattices and Nelson paraconsistent residuated lattices, we provide a natural common generalization…”
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Equivalence of consequence relations: an order-theoretic and categorical perspective
Published in The Journal of symbolic logic (01-09-2009)“…Equivalences and translations between consequence relations abound in logic. The notion of equivalence can be defined syntactically, in terms of translations…”
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Journal Article