Results 21 to 30 of about 5,727 (317)

Cut-Free Gentzen Sequent Calculi for Tense Logics

open access: yesAxioms, 2023
The cut-free single-succedent Gentzen sequent calculus GKt for the minimal tense logic Kt is introduced. This sequent calculus satisfies the displaying property.
Zhe Lin, Minghui Ma
doaj   +1 more source

Sequent Calculi for Intuitionistic Gödel–Löb Logic

open access: yesNotre Dame Journal of Formal Logic, 2021
The paper investigates two sequent calculi for the modal logic iGL, which is the intuitionistic version of the Gödel-Löb logic (the classical provability logic). The first one, GL3i, is a common cut-free one-sided sequent calculus for intuitionistic logic augmented with the GL modal rule \[ \frac{\Box\Gamma,\Gamma,\Box A\Rightarrow A}{\Pi,\Box\Gamma ...
van der Giessen, Iris, Iemhoff, Rosalie
openaire   +2 more sources

A derivation-loop method for temporal logic

open access: yesLietuvos Matematikos Rinkinys, 2019
Various types of calculi (Hilbert, Gentzen sequent, resolution calculi, tableaux) for propositional linear temporal logic (PLTL) have been considered in the literature.
Romas Alonderis, Haroldas Giedra
doaj   +1 more source

Cut-free Calculi and Relational Semantics for Temporal STIT Logics [PDF]

open access: yes, 2019
We present cut-free labelled sequent calculi for a central formalism in logics of agency: STIT logics with temporal operators. These include sequent systems for Ldm , Tstit and Xstit. All calculi presented possess essential structural properties such as
AN Prior   +19 more
core   +4 more sources

Contraction-free calculi for modal logics S5 and KD45

open access: yesLietuvos Matematikos Rinkinys, 2011
It is known that termination and backtracking are among the most important problems in constructing derivations in non-classical logics. In this paper contractionfree and backtracking-free sequent calculi for modal logics S5 and KD45 are presented and ...
Julius Andrikonis   +1 more
doaj   +1 more source

Sequent Calculi for Visser's Propositional Logics

open access: yesNotre Dame Journal of Formal Logic, 2001
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Katsumasa Ishii   +2 more
openaire   +3 more sources

Cut free sequent calculus for logic S5n(ED)

open access: yesLietuvos Matematikos Rinkinys, 2010
Hilbert style, Gentzen style sequent and Kanger style sequent calculi for logic S5n(ED) are considered in this paper. Gentzen style sequent calculus is constructed and its equivalence with Hilbert style system is proved, getting soundness and ...
Haroldas Giedra
doaj   +1 more source

LNL polycategories and doctrines of linear logic [PDF]

open access: yesLogical Methods in Computer Science, 2023
We define and study LNL polycategories, which abstract the judgmental structure of classical linear logic with exponentials. Many existing structures can be represented as LNL polycategories, including LNL adjunctions, linear exponential comonads, LNL ...
Michael Shulman
doaj   +1 more source

Syntactic Interpolation for Tense Logics and Bi-Intuitionistic Logic via Nested Sequents [PDF]

open access: yes, 2019
We provide a direct method for proving Craig interpolation for a range of modal and intuitionistic logics, including those containing a "converse" modality. We demonstrate this method for classical tense logic, its extensions with path axioms, and for bi-
Clouston, Ranald   +3 more
core   +3 more sources

Multi-type Sequent Calculi

open access: yes, 2014
Display calculi are generalized sequent calculi which enjoy a `canonical' cut elimination strategy. That is, their cut elimination is uniformly obtained by verifying the assumptions of a meta-theorem, and is preserved by adding or removing structural rules.
Frittella, Sabine   +4 more
openaire   +5 more sources

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