Defeasible Conditionals using Answer Set Programming

Fuente: arXiv
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Main Authors: Dennison, Racquel, Heyninck, Jesse, Meyer, Thomas
Format: Preprint
Published: 2026
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author Dennison, Racquel
Heyninck, Jesse
Meyer, Thomas
author_facet Dennison, Racquel
Heyninck, Jesse
Meyer, Thomas
contents Defeasible entailment is concerned with drawing plausible conclusions from incomplete information. A foundational framework for modelling defeasible entailment is the KLM framework. Introduced by Kraus, Lehmann, and Magidor, the KLM framework outlines several key properties for defeasible entailment. One of the most prominent algorithms within this framework is Rational Closure (RC). This paper presents a declarative definition for computing RC using Answer Set Programming (ASP). Our approach enables the automatic construction of the minimal ranked model from a given knowledge base and supports entailment checking for specified queries. We formally prove the correctness of our ASP encoding and conduct empirical evaluations to compare the performance of our implementation with that of existing imperative implementations, specifically the InfOCF solver. The results demonstrate that our ASP-based approach adheres to RC's theoretical foundations and offers improved computational efficiency.
format Preprint
id arxiv_https___arxiv_org_abs_2601_03840
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle Defeasible Conditionals using Answer Set Programming
Dennison, Racquel
Heyninck, Jesse
Meyer, Thomas
Artificial Intelligence
Logic in Computer Science
Defeasible entailment is concerned with drawing plausible conclusions from incomplete information. A foundational framework for modelling defeasible entailment is the KLM framework. Introduced by Kraus, Lehmann, and Magidor, the KLM framework outlines several key properties for defeasible entailment. One of the most prominent algorithms within this framework is Rational Closure (RC). This paper presents a declarative definition for computing RC using Answer Set Programming (ASP). Our approach enables the automatic construction of the minimal ranked model from a given knowledge base and supports entailment checking for specified queries. We formally prove the correctness of our ASP encoding and conduct empirical evaluations to compare the performance of our implementation with that of existing imperative implementations, specifically the InfOCF solver. The results demonstrate that our ASP-based approach adheres to RC's theoretical foundations and offers improved computational efficiency.
title Defeasible Conditionals using Answer Set Programming
topic Artificial Intelligence
Logic in Computer Science
url https://arxiv.org/abs/2601.03840