Results 21 to 30 of about 23,486 (260)
The validity degree vectors of formulae in two-valued predicate logic [PDF]
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
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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.
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Intuitionistic completeness for first order classical logic [PDF]
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.
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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
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Admissibility, compatibility, and deducibility in first-order sequent logics [PDF]
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
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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
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THE LOGICAL SYSTEM OF FREGE'S GRUNDGESTZE: A RATIONAL RECONSTRUCTION
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
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Comparing Classical and Relativistic Kinematics in First-Order Logic
58 pages, 10 ...
Lefever, Koen, Székely, Gergely
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Classical Proofs as Parallel Programs [PDF]
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
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A Graph Calculus for Predicate Logic [PDF]
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
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