Results 21 to 30 of about 117,954 (285)

The Structure of Differential Invariants and Differential Cut Elimination [PDF]

open access: yesLogical Methods in Computer Science, 2012
The biggest challenge in hybrid systems verification is the handling of differential equations. Because computable closed-form solutions only exist for very simple differential equations, proof certificates have been proposed for more scalable ...
Andre Platzer
doaj   +1 more source

One-Sided Sequent Systems for Nonassociative Bilinear Logic: Cut Elimination and Complexity

open access: yesBulletin of the Section of Logic, 2021
Bilinear Logic of Lambek amounts to Noncommutative MALL of Abrusci. Lambek proves the cut–elimination theorem for a one-sided (in fact, left-sided) sequent system for this logic.
Paweł Płaczek
doaj   +1 more source

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   +1 more source

Fast Cut-Elimination using Proof Terms: An Empirical Study [PDF]

open access: yesElectronic Proceedings in Theoretical Computer Science, 2018
Urban and Bierman introduced a calculus of proof terms for the sequent calculus LK with a strongly normalizing reduction relation. We extend this calculus to simply-typed higher-order logic with inferences for induction and equality, albeit without ...
Gabriel Ebner
doaj   +1 more source

Simplified cut elimination for Kripke-Platek set theory

open access: yes, 2022
The purpose of this article is to present a new and simplified cut elimination procedure for KP. We start off from the basic language of set theory and add constants for all elements of the constructible hierarchy up to the Bachmann-Howard ordinal ψ(εΩ+1)
Jäger, Gerhard
core   +1 more source

Schema Complexity in Propositional-Based Logics

open access: yesMathematics, 2021
The essential structure of derivations is used as a tool for measuring the complexity of schema consequences in propositional-based logics. Our schema derivations allow the use of schema lemmas and this is reflected on the schema complexity.
Jaime Ramos   +2 more
doaj   +1 more source

Cut elimination by unthreading

open access: yesArchive for Mathematical Logic, 2023
AbstractWe provide a non-Gentzen, though fully syntactical, cut-elimination algorithm for classical propositional logic. The designed procedure is implemented on $$\textsf{GS4}$$ GS 4 , the one-sided version of Kleene’s sequent system $$\textsf{G4}$$
openaire   +4 more sources

Algebraic Aspects of Cut Elimination [PDF]

open access: yesStudia Logica, 2004
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Francesco Belardinelli   +2 more
openaire   +1 more source

Quasipolynomial Normalisation in Deep Inference via Atomic Flows and Threshold Formulae [PDF]

open access: yesLogical Methods in Computer Science, 2016
Je\v{r}\'abek showed that cuts in classical propositional logic proofs in deep inference can be eliminated in quasipolynomial time. The proof is indirect and it relies on a result of Atserias, Galesi and Pudl\'ak about monotone sequent calculus and a ...
Paola Bruscoli   +3 more
doaj   +1 more source

Cut-elimination for knowledge logics with interaction

open access: yesLietuvos Matematikos Rinkinys, 2008
In the article, multimodal logics K4n and S4n with the central agent axiom are analysed. The Hilbert type calculi are presented, then the Gentzen type calculi with cut are derived, and the proofs of the cut-eliminationtheorems are outlined.
Julius Andrikonis
doaj   +1 more source

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