Search Results - "Přenosil, Adam"
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Filter Classes of Upsets of Distributive Lattices
Published in Order (Dordrecht) (01-08-2024)“…Let us say that a class of upward closed sets (upsets) of distributive lattices is a finitary filter class if it is closed under homomorphic preimages,…”
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De Morgan clones and four-valued logics
Published in Algebra universalis (01-05-2021)“…We study clones on a four-element set related to the clone DMA of all term functions of the subdirectly irreducible four-element De Morgan algebra DM 4 . We…”
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3
Lattice-ordered pregroups are semi-distributive
Published in Algebra universalis (01-02-2021)“…We prove that the lattice reduct of every lattice-ordered pregroup is semidistributive. This is a consequence of a certain weak form of the distributive law…”
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4
The inconsistency predicate on De Morgan lattices
Published in Acta Universitatis Carolinae. Philosophica et historica (14-11-2017)“…We consider expansions of De Morgan lattices by an additional unary predicate interpreted in each De Morgan lattice by the ideal generated by all elements of…”
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5
From partially ordered monoids to partially ordered groups via free nuclear preimages
Published in Journal of algebra (15-11-2022)“…Two fundamental constructions operating on residuated lattices and partially ordered monoids (pomonoids) are nuclear images and conuclear images. Nuclear…”
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6
Pointed Lattice Subreducts of Varieties of Residuated Lattices
Published in Order (Dordrecht) (27-05-2024)“…We study the pointed lattice subreducts of varieties of residuated lattices (RLs) and commutative residuated lattices (CRLs), i.e. lattice subreducts expanded…”
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7
Logics of upsets of De Morgan lattices
Published in Mathematical logic quarterly (01-11-2023)“…We study logics determined by matrices consisting of a De Morgan lattice with an upward closed set of designated values, such as the logic of non‐falsity…”
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8
Complemented MacNeille completions and algebras of fractions
Published in Journal of algebra (01-06-2023)“…We introduce (ℓ-)bimonoids as ordered algebras consisting of two compatible monoidal structures on a partially ordered (lattice-ordered) set. Bimonoids form an…”
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Sequent Calculi for First-order ST
Published in Journal of philosophical logic (01-10-2024)“…Strict-Tolerant Logic ( ST ) underpins naïve theories of truth and vagueness (respectively including a fully disquotational truth predicate and an unrestricted…”
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10
Cut Elimination, Identity Elimination, and Interpolation in Super-Belnap Logics
Published in Studia logica (01-12-2017)“…We develop a Gentzen-style proof theory for super-Belnap logics (extensions of the four-valued Dunn-Belnap logic), expanding on an approach initiated by Pynko…”
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11
Constructing Natural Extensions of Propositional Logics
Published in Studia logica (01-12-2016)“…The proofs of some results of abstract algebraic logic, in particular of the transfer principle of Czelakowski, assume the existence of so-called natural…”
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12
Sequent Calculi for First-order $$\textrm{ST}
Published in Journal of philosophical logic (01-10-2024)“…Strict-Tolerant Logic ( $$\textrm{ST}$$ ST ) underpins naïve theories of truth and vagueness (respectively including a fully disquotational truth predicate and…”
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13
Reductio ad contradictionem: An Algebraic Perspective
Published in Studia logica (01-06-2016)“…We introduce a novel expansion of the four-valued Belnap–Dunn logic by a unary operator representing reductio ad contradictionem and study its algebraic…”
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14
An Algebraic View of Super-Belnap Logics
Published in Studia logica (01-12-2017)“…The Belnap-Dunn logic (also known as First Degree Entailment, or FDE) is a well-known and well-studied four-valued logic, but until recently little has been…”
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15
The inconsistency predicate on De Morgan lattices
Published in Acta Universitatis Carolinae. Philosophica et historica (2017)“…We consider expansions of De Morgan lattices by an additional unary predicate interpreted in each De Morgan lattice by the ideal generated by all elements of…”
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16
Levin's and Prucnal's theorems on Medvedev's logic of finite problems
Published 05-04-2024“…The purpose of this note is to provide a transparent and unified retelling of both Skvortsov's proof of the structural completeness of Medvedev's logic of…”
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17
Compatibility between modal operators in distributive modal logic
Published 16-11-2023“…Unlike in classical modal logic, in non-classical modal logics the box and diamond operators frequently fail to be interdefinable. Instead, these logics impose…”
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18
Pointed lattice subreducts of varieties of residuated lattices
Published 15-11-2023“…We study the pointed lattice subreducts of varieties of residuated lattices (RLs) and commutative residuated lattices (CRLs), i.e. lattice subreducts expanded…”
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19
Logics of upsets of De Morgan lattices
Published 07-12-2021“…We study logics determined by matrices consisting of a De~Morgan lattice with an upward closed set of designated values, such as the logic of non-falsity…”
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20
From partially ordered monoids to partially ordered groups via free nuclear preimages
Published 18-11-2021“…Two fundamental constructions operating on residuated lattices and partially ordered monoids (pomonoids) are so-called nuclear images and conuclear images…”
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Journal Article