Results 21 to 30 of about 580,256 (322)

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

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

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

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

Cut-elimination and Redundancy-elimination by Resolution

open access: yesJournal of Symbolic Computation, 2000
The authors propose a new cut-elimination procedure for classical predicate calculus LK. The basic formulation treats a particular case: \[ \text{if }A,\Gamma\vdash\Delta\text{ is derivable and }A\text{ is valid, then }\Gamma\vdash\Delta\text{ is derivable}.\tag{\(*\)} \] In general a cut like \(\Gamma\vdash B\); \(B,\Gamma\vdash\Delta/\Gamma \vdash ...
Baaz, Matthias, Leitsch, Alexander
openaire   +1 more source

Confluence for classical logic through the distinction between values and computations [PDF]

open access: yesElectronic Proceedings in Theoretical Computer Science, 2014
We apply an idea originated in the theory of programming languages - monadic meta-language with a distinction between values and computations - in the design of a calculus of cut-elimination for classical logic.
José Espírito Santo   +3 more
doaj   +1 more source

Reverse mathematics and well-ordering principles [PDF]

open access: yes, 2011
The paper is concerned with generally Pi^1_2 sentences of the form 'if X is well ordered then f(X) is well ordered', where f is a standard proof theoretic function from ordinals to ordinals.
Rathjen, Michael, Weiermann, Andreas
core   +1 more source

Herbrand-Confluence [PDF]

open access: yesLogical Methods in Computer Science, 2013
We consider cut-elimination in the sequent calculus for classical first-order logic. It is well known that this system, in its most general form, is neither confluent nor strongly normalizing.
Stefan Hetzl, Lutz Straßburger
doaj   +1 more source

The Consistency and Complexity of Multiplicative Additive System Virtual [PDF]

open access: yesScientific Annals of Computer Science, 2015
This paper investigates the proof theory of multiplicative additive system virtual (MAV). MAV combines two established proof calculi: multiplicative additive linear logic (MALL) and basic system virtual (BV).
R. Horne
doaj   +1 more source

Home - About - Disclaimer - Privacy