RSS 1.0Bulletin of the Section of Logic
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The "Bulletin of the Section of Logic" (BSL) is a quarterly peer-reviewed journal published with the support of the Lodz University Press. The BSL was founded in 1972 by Ryszard Wójcicki, Head of the Section of Logic of the Polish Academy of Sciences, then based in Wrocław, as a newsletter-journal designed for the exchange of scientific results among members of the Section with their national and international partners and colleagues. The first editor-in-chief of the BSL was Jan Zygmunt, who supervised the editorial process of the first six issues of the journal. In 1973 the role was taken over by Marek Tokarz. From 1975 to 2018 the journal was managed and edited by Grzegorz Malinowski. In 1992 the Department of Logic at the University of Łódź took over the publication from the Polish Academy of Sciences changing its policy into regular peer-reviewed journal. The aim of the Bulletin is to act as a forum for the prompt wide dissemination of original, significant results in logic through rapid publication. The BSL welcomes especially contributions dealing directly with logical calculi, their methodology, application and algebraic interpretations.
Nazwa: Bulletin of the Section of Logic
ISSN: 0138-0680
e-ISSN: 2449-836X
Wydawca: Wydawnictwo Uniwersytetu Łódzkiego
Format: Open Access (licencja CC BY-NC-ND)
Ukazuje się od: 1972 r.
Strona internetowa czasopisma / Journal website
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Bridging Classical and Modern Approaches to Thales' Theorem
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Classical Logic, Uniformity, and Weak Excluded Middle in Non-Monotonic Proof-Theoretic Semantics
(Wydawnictwo Uniwersytetu Łódzkiego, 2026-04-24)Non-monotonic base-extension semantics (nB-eS), a kind of non-monotonic proof-theoretic semantics (nPTS), is known to validate classical logic when its meta-logic is classical. Schroeder-Heister has remarked that classical ... -
An Elementary Proof of the Characterization Theorem for Conjunctive Multiple-Conclusion Consequence Relations
(Wydawnictwo Uniwersytetu Łódzkiego, 2026-04-15)We give a characterization theorem for multiple-conclusion consequence relations with the conjunctive reading of conclusions. As in the case of disjunctive multiple-conclusion consequence relations, we define consequence ... -
The Amalgamation Property in the Variety of Regular Double Stone Algebras: A Constructive View
(Wydawnictwo Uniwersytetu Łódzkiego, 2026-04-24)In this paper we give a constructive proof that the variety of Boolean algebras has the strong amalgamation property by describing constructively the strong amalgams in the variety. Then, capitalizing on this construction, ... -
A Proof-Theoretic Interpolation Theorem for Inquisitive Propositional Logic
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Semi-Substructural Logics à la Lambek with Symmetry
(Wydawnictwo Uniwersytetu Łódzkiego, 2026-03-13)This work studies the proof theory and ternary relational semantics of left (right) skew monoidal closed categories and skew monoidal bi-closed categories, both symmetric and non-symmetric, from the perspective of ... -
Agent-Knowledge Logic for Alternative Epistemic Logic
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Complexity of Nonassociative Lambek Calculus with Classical and Intuitionistic Logic
(Wydawnictwo Uniwersytetu Łódzkiego, 2026-03-13)The Nonassociative Lambek Calculus (NL) represents a logic devoid of the structural rules of exchange, weakening, and contraction, and it does not presume the associativity of its connectives. Its finitary consequence ... -
Qualified Definiteness
(Wydawnictwo Uniwersytetu Łódzkiego, 2026-03-13)According to Russell, the definite article ‘the’ in a definite description ‘the F’ is used strictly in case there is a unique F and it is used loosely in case there is more than one F. Russell’s analysis of constructions ... -
Preface: Non-Classical Logics. Theory and Applications (Part II)
(Wydawnictwo Uniwersytetu Łódzkiego, 2026-03-13) -
From Translations to Non-Collapsing Logic Combinations
(Wydawnictwo Uniwersytetu Łódzkiego, 2025-11-28)Prawitz suggested expanding a natural deduction system for intuitionistic logic to include rules for classical logic constructors, allowing both intuitionistic and classical elements to coexist without losing their inherent ... -
On Generalization of Modular Lattices
(Wydawnictwo Uniwersytetu Łódzkiego, 2025-11-28)We introduce the concepts of dually balanced lattices and \(M\)-lattices and provide some basic properties of these classes of lattices. Both classes can be viewed as generalizations of the well-known class of modular ... -
On Involutive Weak Exchange Algebras
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Some Results Concerning Axioms for Equivalential Calculus
(Wydawnictwo Uniwersytetu Łódzkiego, 2025-07-02)One of the most important questions in the area of the equivalential calculus (EC) currently is the issue of the single shortest axiom. We show some new a single organic and inorganic axioms for EC which are either D-complete ... -
Dialogical Ecumenism
(Wydawnictwo Uniwersytetu Łódzkiego, 2025-11-28)Ecumenical logics are systems where two logics can coexist, sharing vocabulary and avoiding collapses between them. The literature has focused mainly on ecumenism between classical and intuitionistic logic, and several ... -
Continua of Logics Related to Intuitionistic and Minimal Logics
(Wydawnictwo Uniwersytetu Łódzkiego, 2025-07-07)We analyze the relationship between logics around intuitionistic logic and minimal logic. We characterize the intersection of minimal logic and co-minimal logic introduced by Vakarelov, and reformulate logics given in the ... -
Unified Sequent Calculi and Natural Deduction Systems for Until-free Linear-time Temporal Logics
(Wydawnictwo Uniwersytetu Łódzkiego, 2025-11-27)A unified Gentzen-style proof-theoretic framework for until-free propositional linear-time temporal logic and its intuitionistic variant is introduced. The framework unifies Gentzen-style single-succedent sequent calculi ... -
Cut-elimination and Normalization Theorems for Connexive Logics over Wansing’s C
(Wydawnictwo Uniwersytetu Łódzkiego, 2025-07-02)Gentzen-style sequent calculi and Gentzen-style natural deduction systems are introduced for a family (C-family) of connexive logics over Wansing’s basic constructive connexive logic C. The C-family is derived from C by ... -
Semantic Incompleteness of Liberman et al. (2020)’s Hilbert-style Systems for Term-modal Logics with Equality and Non-rigid Terms
(Wydawnictwo Uniwersytetu Łódzkiego, 2025-09-18)In this paper, we prove the semantic incompleteness of some expansions of the Hilbert-style system for the minimal normal term-modal logic with equality and non-rigid terms that were proposed in Liberman et al. (2020) ... -
Preface: Non-Classical Logics. Theory and Applications (Part I)
(Wydawnictwo Uniwersytetu Łódzkiego, 2025-06-30)