A Paraconsistent Semantics with Contradiction Support Detection
@inproceedings{Damsio1997APS, title={A Paraconsistent Semantics with Contradiction Support Detection}, author={Carlos Viegas Dam{\'a}sio and Lu{\'i}s Moniz Pereira}, booktitle={LPNMR}, year={1997} }
We begin by motivating the use of paraconsistency and the detection of contradiction supported conclusions by recourse to examples. Next we overview WFSXP and present its embedding into WFS. We then address the problem of detecting contradiction support and relate it to WFSXp's intrinsic properties. Afterwards, we show how to implement two recent modal contradiction related constructs in the language of extended logic programs in order to gain explicit control of contradiction propagation. We…
8 Citations
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References
SHOWING 1-10 OF 49 REFERENCES
Extended Well-Founded Semantics for Paraconsistent Logic Programs
- Computer ScienceFGCS
- 1992
A declarative semantics of logic programs which possibly contain inconsistent information is presented and the extended well-founded semantics for paraconsistent logic programs is extended to disjunctive paracons consistent logic programs.
Contradiction Removal within Well Founded Semantics
- Computer ScienceLPNMR
- 1991
The purpose is to deene a semantics that extends Well Founded Semantics for programs with classical negation, and which avoids the absence of models caused by contradictions brought about by closed world assumptions through making their truth value become undeened, and thus permiting noncontradictory models to appear.
Diagnosis and Debugging as Contradiction Removal in Logic Programs
- Computer ScienceEPIA
- 1993
We apply to normal logic programs with integrity rules a contradiction removal approach, and use it to uniformly treat diagnosis and debugging, and as a matter of fact envisage programs as artifacts…
Paraconsistent Stable Semantics for Extended Disjunctive Programs
- Computer ScienceJ. Log. Comput.
- 1995
The paraconsistent minimal and stable model semantics for extended disjunctive programs, which can distinguish inconsistent information from other information in a program, are introduced.
Reasoning with Inconsistency in Extended Deductive Databases
- Computer Science
- 1993
It is shown that there are at least three different neutralization-based calculi for XDBs with varying degree of skepticism towards the reliability of possibly inconsistent information, called skeptical, conservative and credulous, which constitute interesting options in database reasoning.
Paraconsistent logics
- Philosophy, Computer Science
- 1998
This chapter discusses the need to derive reasonable inferences without deriving the trivial inferences that follow the ex falso quodlibet proof rule that holds in classical logic.
Reasoning with Negative Information, II: Hard Negation, Strong Negation and Logic Programs
- Computer Science, PhilosophyNonclassical Logics and Information Processing
- 1990
It is shown that a certain system of constructive logic with strong negation, due to Lopez-Escobar (1972) and Almukdad & Nelson (1984), fulfils this criterion, as do several recent systems of logic programming, including that of Gelfond & Lifschitz (1990).
A Classification Theory of Semantics of Normal Logic Programs: I. Strong Properties
- Computer ScienceFundam. Informaticae
- 1995
This article presents a method for classifying and characterizing the various different semantics of logic programs with negation and shows that the 3-valued version COMP 3 of Clark's completion, the stratified semantics M supp P as well as the well-founded semantics WFS and two extensions of it behave very regular.
Well-Founded Semantics, Generalized
- Computer ScienceISLP
- 1991
It is shown how the well-founded approach also extends naturally to the same family of bilattice-based programming languages that the earlier fixpoint approaches extended to, and provides a natural semantics for logic programming systems that have already been proposed.
Reasoning with Logic Programming
- Computer ScienceLecture Notes in Computer Science
- 1996
WFSX is a new semantics for extended logic programs that combines LP semantics with two negations, and autoepistemic logics to deal with contradiction.