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Inducing syntactic cut-elimination for indexed nested sequents [PDF]

open access: yesLogical Methods in Computer Science, 2018
The key to the proof-theoretic study of a logic is a proof calculus with a subformula property. Many different proof formalisms have been introduced (e.g. sequent, nested sequent, labelled sequent formalisms) in order to provide such calculi for the many
Revantha Ramanayake
doaj   +3 more sources

On the Correspondence between Display Postulates and Deep Inference in Nested Sequent Calculi for Tense Logics [PDF]

open access: yesLogical Methods in Computer Science, 2011
We consider two styles of proof calculi for a family of tense logics, presented in a formalism based on nested sequents. A nested sequent can be seen as a tree of traditional single-sided sequents.
Rajeev Gore   +2 more
doaj   +3 more sources

Cut Elimination for Extended Sequent Calculi

open access: yesBulletin of the Section of Logic, 2023
We present a syntactical cut-elimination proof for an extended sequent calculus covering the classical modal logics in the \(\mathsf{K}\), \(\mathsf{D}\), \(\mathsf{T}\), \(\mathsf{K4}\), \(\mathsf{D4}\) and \(\mathsf{S4}\) spectrum.
Simone Martini   +2 more
doaj   +4 more sources

Sequent Calculi for Orthologic with Strict Implication

open access: yesBulletin of the Section of Logic, 2022
In this study, new sequent calculi for a minimal quantum logic (\(\bf MQL\)) are discussed that involve an implication. The sequent calculus \(\bf GO\) for \(\bf MQL\) was established by Nishimura, and it is complete with respect to ortho-models (O ...
Tomoaki Kawano
doaj   +3 more sources

Dual-Context Calculi for Modal Logic [PDF]

open access: yesLogical Methods in Computer Science, 2020
We present natural deduction systems and associated modal lambda calculi for the necessity fragments of the normal modal logics K, T, K4, GL and S4. These systems are in the dual-context style: they feature two distinct zones of assumptions, one of which
G. A. Kavvos
doaj   +6 more sources

Finite sequent calculi for PLTL

open access: yesLietuvos Matematikos Rinkinys, 2015
Two sequent calculi for temporal logic of knowledge are presented: one containing invariant-like rule and the other containing looping axioms. Its proved that the calculi are equivalent, sound and complete.
Romas Alonderis   +2 more
doaj   +4 more sources

Cut-Simulation and Impredicativity [PDF]

open access: yesLogical Methods in Computer Science, 2009
We investigate cut-elimination and cut-simulation in impredicative (higher-order) logics. We illustrate that adding simple axioms such as Leibniz equations to a calculus for an impredicative logic -- in our case a sequent calculus for classical type ...
Christoph Benzmueller   +2 more
doaj   +4 more sources

Graphical Sequent Calculi for Modal Logics [PDF]

open access: yesElectronic Proceedings in Theoretical Computer Science, 2017
The syntax of modal graphs is defined in terms of the continuous cut and broken cut following Charles Peirce's notation in the gamma part of his graphical logic of existential graphs.
Minghui Ma, Ahti-Veikko Pietarinen
doaj   +4 more sources

Sequent Calculi for Choice Logics

open access: yesJournal of Automated Reasoning, 2022
AbstractChoice logics constitute a family of propositional logics and are used for the representation of preferences, with especiallyqualitative choice logic(QCL) being an established formalism with numerous applications in artificial intelligence. While computational properties and applications of choice logics have been studied in the literature ...
Bernreiter, M.   +3 more
openaire   +2 more sources

Sequent Calculi for the classical fragment of Bochvar and Halldén's Nonsense Logics [PDF]

open access: yesElectronic Proceedings in Theoretical Computer Science, 2013
In this paper sequent calculi for the classical fragment (that is, the conjunction-disjunction-implication-negation fragment) of the nonsense logics B3, introduced by Bochvar, and H3, introduced by Halldén, are presented.
Marcelo E. Coniglio, María I. Corbalán
doaj   +1 more source

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