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Open AccessJournal ArticleDOI

An axiomatization of wansing's expansion of nelson's logic

Hitoshi Omori
- 21 Oct 2015 - 
- Vol. 2015, Iss: 50, pp 41-51
TLDR
An axiomatization for an expansion of Nelson’s logic motivated by Heinrich Wansing is offered which serves as a base logic for the framework of nonmonotonic reasoning considered by Dov Gabbay and Raymond Turner.
Abstract
A b s t r a c t. The present note offers an axiomatization for an expansion of Nelson’s logic motivated by Heinrich Wansing which serves as a base logic for the framework of nonmonotonic reasoning considered by Dov Gabbay and Raymond Turner. We also show that the expansion of Wansing is not conservative over intuitionistic logic, but at least as strong as Jankov’s logic.

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Citations
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Journal ArticleDOI

A Note on Wansing's expansion of Nelson's logic

TL;DR: In this paper, the author corrects an error made by the author in answering an open problem of axiomatizing an expansion of Nelson's logic introduced by Heinrich Wansing.
References
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Book

Logics for artificial intelligence

TL;DR: This book's goal, to serve as an elementary text and reference work on the applications of nonstandard logics to artificial intelligence, is somewhat more restrictive than what was inferred from the rifle, namely uses of logic in AI.
Journal ArticleDOI

Proof theory of Nelson's paraconsistent logic: A uniform perspective

TL;DR: In this paper, proof systems for Nelson's paraconsistent logic N4 are comprehensively studied and some basic theorems including cut-elimination, normalization and completeness are uniformly proved using various embedding theorem.
Book ChapterDOI

Intuitonistic Basis for Non-Monotonic Logic

TL;DR: The semantics seems to be inadequate and there are several counterintuitive results obtained in the system of non-monotonic logic proposed by McDermott and Doyle.
Journal ArticleDOI

The Class of Extensions of Nelson's Paraconsistent Logic

Sergei P. Odintsov
- 01 Aug 2005 - 
TL;DR: This article studies interrelations between εN4⊥ and the lattice of superintuitionistic logics and the basic subclasses of explosive logics, normallogics, logics of general form and how they relate.
Journal ArticleDOI

Semantics-based Nonmonotonic Inference

TL;DR: This paper discusses Gabbay's idea of basing nonmonotonic deduction on semantic consequence in intuitionistic logic extended by a consistency operator and Turner's suggestion of replacing the intuitionistic base system by Kleene’s three-valued logic and shows that a certain counterintuitive feature of these approaches can be avoided by using Nelson's constructive logic N.