Results 21 to 30 of about 23,486 (260)

The validity degree vectors of formulae in two-valued predicate logic [PDF]

open access: yesInternational Journal of Computational Intelligence Systems, 2015
By means of infinite product of uniformly distributed probability spaces of cardinal , the concept of -validity degrees and validity degree vectors of formulae in two-valued predicate logic are introduced. It is proved that the validity degree vectors of
Xiaoyan Qin, Yang Xu, Yi Liu
doaj   +1 more source

Classical first-order logic

open access: yesEducation and Research Archive, 2020
The first sequent calculus, LK is the example after which many other calculi have been fashioned. We describe this calculus, prove its equivalence to the axiom system K, and provide a sound and complete interpretation too. A major part of Section 2.3 is a presentation of the proof of the cut theorem using triple induction.
openaire   +3 more sources

Intuitionistic completeness for first order classical logic [PDF]

open access: yesJournal of Symbolic Logic, 1999
AbstractIn the past sixty years or so, a real forest of intuitionistic models for classical theories has grown. In this paper we will compare intuitionistic models of first order classical theories according to relevant issues, like completeness (w.r.t.
openaire   +3 more sources

Independence and games

open access: yesPhilosophia Scientiæ, 2005
Hintikka and Sandu have developed IF logic as a genuine alternative to classical first-order logic : liberalizing dependence schemas between quantifiers, IF would carry out all the ideas already underlying classical logic.
Denis Bonnay
doaj   +1 more source

Admissibility, compatibility, and deducibility in first-order sequent logics [PDF]

open access: yesComputer Science Journal of Moldova, 2015
The paper is about the notions of admissibility and compatibility and their significance for deducibility in different sequent logics including first-order classical and intuitionistic ones both without and with equality and, possibly, with modal rules.
Alexander Lyaletski
doaj  

Game Semantics in Teaching of Classical First Order Predicate Logic to Stu- dents of Computer Science

open access: yesMATEC Web of Conferences, 2018
Game-theoretical interpretation of logical semantics has been first suggested in 1950s. Although it is well know among professionals, it is often excluded from introductory courses in logic.
Glivická Jana
doaj   +1 more source

THE LOGICAL SYSTEM OF FREGE'S GRUNDGESTZE: A RATIONAL RECONSTRUCTION

open access: yesManuscrito, 2015
This paper aims at clarifying the nature of Frege's system of logic, as presented in the first volume of the Grundgesetze . We undertake a rational reconstruction of this system, by distinguishing its propositional and predicate fragments. This allows us
MÉVEN CADET, MARCO PANZA
doaj   +1 more source

Classical Proofs as Parallel Programs [PDF]

open access: yesElectronic Proceedings in Theoretical Computer Science, 2018
We introduce a first proofs-as-parallel-programs correspondence for classical logic. We define a parallel and more powerful extension of the simply typed lambda calculus corresponding to an analytic natural deduction based on the excluded middle law. The
Federico Aschieri   +2 more
doaj   +1 more source

A Graph Calculus for Predicate Logic [PDF]

open access: yesElectronic Proceedings in Theoretical Computer Science, 2013
We introduce a refutation graph calculus for classical first-order predicate logic, which is an extension of previous ones for binary relations. One reduces logical consequence to establishing that a constructed graph has empty extension, i. e.
Paulo A. S. Veloso, Sheila R. M. Veloso
doaj   +1 more source

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