Results 31 to 40 of about 117,954 (285)

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-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   +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

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

Superdeduction in Lambda-Bar-Mu-Mu-Tilde [PDF]

open access: yesElectronic Proceedings in Theoretical Computer Science, 2011
Superdeduction is a method specially designed to ease the use of first-order theories in predicate logic. The theory is used to enrich the deduction system with new deduction rules in a systematic, correct and complete way.
Clément Houtmann
doaj   +1 more source

Partial cut elimination for propositional discrete linear time temporal logic

open access: yesLietuvos Matematikos Rinkinys, 2010
We consider propositional discrete linear time temporal logic with future and past operators of time. For each formula ϕ of this logic, we present Gentzen-type sequent calculus Gr(ϕ) with a restricted cut rule.
Jūratė Sakalauskaitė
doaj   +1 more source

Pattern matching as cut elimination

open access: yesTheoretical Computer Science, 2003
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Cerrito, Serenella, Kesner, Delia
openaire   +2 more sources

Analytic Non-Labelled Proof-Systems for Hybrid Logic: Overview and a couple of striking facts

open access: yesBulletin of the Section of Logic, 2022
This paper is about non-labelled proof-systems for hybrid logic, that is, proofsystems where arbitrary formulas can occur, not just satisfaction statements.
Torben Braüner
doaj   +1 more source

Canonical calculi with (n,k)-ary quantifiers [PDF]

open access: yesLogical Methods in Computer Science, 2008
Propositional canonical Gentzen-type systems, introduced in 2001 by Avron and Lev, are systems which in addition to the standard axioms and structural rules have only logical rules in which exactly one occurrence of a connective is introduced and no ...
Arnon Avron, Anna Zamansky
doaj   +1 more source

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