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Cited by 585

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Contributions to the Theory of Logic Programming

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Apt, Krzysztof R., van Emden, M. H.·1982·Journal of the ACM

Abstract

Horn clauses of first-order predicate logic can be regarded as a high-level programming language when SLD-resoluUon, a special-purpose resolution theorem prover, is used as interpreter.Consequently, the semantics of Horn clauses can be studied both by model-theoreuc and fixpomt methods (in the sense of Scott).This posslbihty is exploited here by identifying the least (greatest) fixpomt with a least (greatest) model Successful termination of SLD-resolution is characterized by least fixpomts A semantic characterization of t'mlte failure of SLD-resoluuon is given, which coincides with the greatest fixpomt only for a special case of clauses.It is shown that nondetermmistlc flowchart schemata of bounded nondeterminaey are modeled by this special case; the connection between finite fadure and greatest fixpomt is then used to give a semantic characterization of termmauon, blocking, and nontermination of such flowchart schemata Categories and Subject Descriptors" F 3 1 ILogics and Meanings of Programs]' Speofymg and Verifying and Reasoning about Programs--logics of programs, F 4.1 [Mathematlcal Logic and Formal Languagesl Mathematical Logic--logic programming, 1 2 3 [Artificial Intelligencel.Deduction and Theorem Proving-logic programming

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Metadata

Authors
Apt, K. R., & van Emden, M. H.
Venue
Journal of the ACM
Published
1982-07
Volume
29
Issue
3
Pages
841-862
ISSN
  • 0004-5411 (ISSN-L)
  • 1557-735X
OpenAlex
W2143382644
Cited by
585
References
10
FWCI
26.25
Type
journal article
Language
en
Open access
bronze

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CoChat. (2026). Citation check: Contributions to the Theory of Logic Programming. https://app.cochat.ai/papers/10.1145/322326.322339
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Apt, K. R., & van Emden, M. H. (1982). Contributions to the Theory of Logic Programming. Journal of the ACM. https://doi.org/10.1145/322326.322339

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