{"id":"https://openalex.org/W2065358182","doi":"https://doi.org/10.1016/0304-3975(89)90135-7","title":"A logico-algebraic approach to the model theory of knowledge","display_name":"A logico-algebraic approach to the model theory of knowledge","publication_year":1989,"publication_date":"1989-08-01","ids":{"openalex":"https://openalex.org/W2065358182","doi":"https://doi.org/10.1016/0304-3975(89)90135-7","mag":"2065358182"},"language":"en","primary_location":{"id":"doi:10.1016/0304-3975(89)90135-7","is_oa":false,"landing_page_url":"https://doi.org/10.1016/0304-3975(89)90135-7","pdf_url":null,"source":{"id":"https://openalex.org/S90727058","display_name":"Theoretical Computer Science","issn_l":"0304-3975","issn":["0304-3975","1879-2294"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310320990","host_organization_name":"Elsevier BV","host_organization_lineage":["https://openalex.org/P4310320990"],"host_organization_lineage_names":["Elsevier BV"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Theoretical Computer Science","raw_type":"journal-article"},"type":"article","indexed_in":["crossref"],"open_access":{"is_oa":false,"oa_status":"closed","oa_url":null,"any_repository_has_fulltext":false},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5009326240","display_name":"Majd Abdallah","orcid":"https://orcid.org/0000-0002-8371-1793"},"institutions":[{"id":"https://openalex.org/I125749732","display_name":"Western University","ror":"https://ror.org/02grkyz14","country_code":"CA","type":"education","lineage":["https://openalex.org/I125749732"]}],"countries":["CA"],"is_corresponding":true,"raw_author_name":"M.A. Nait Abdallah","raw_affiliation_strings":["Department of Computer Science, University of Western Ontario, London, Ontario, Canada","University of Western Ontario, Ontario, Canada"],"affiliations":[{"raw_affiliation_string":"Department of Computer Science, University of Western Ontario, London, Ontario, Canada","institution_ids":["https://openalex.org/I125749732"]},{"raw_affiliation_string":"University of Western Ontario, Ontario, Canada","institution_ids":["https://openalex.org/I125749732"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":["https://openalex.org/A5009326240"],"corresponding_institution_ids":["https://openalex.org/I125749732"],"apc_list":{"value":2690,"currency":"USD","value_usd":2690},"apc_paid":null,"fwci":2.017,"has_fulltext":false,"cited_by_count":4,"citation_normalized_percentile":{"value":0.88744176,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":null,"biblio":{"volume":"66","issue":"2","first_page":"205","last_page":"232"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11010","display_name":"Logic, Reasoning, and Knowledge","score":0.9991999864578247,"subfield":{"id":"https://openalex.org/subfields/1702","display_name":"Artificial Intelligence"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},"topics":[{"id":"https://openalex.org/T11010","display_name":"Logic, Reasoning, and Knowledge","score":0.9991999864578247,"subfield":{"id":"https://openalex.org/subfields/1702","display_name":"Artificial Intelligence"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10215","display_name":"Semantic Web and Ontologies","score":0.9955000281333923,"subfield":{"id":"https://openalex.org/subfields/1702","display_name":"Artificial Intelligence"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10126","display_name":"Logic, programming, and type systems","score":0.9952999949455261,"subfield":{"id":"https://openalex.org/subfields/1702","display_name":"Artificial Intelligence"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/logic-programming","display_name":"Logic programming","score":0.645026683807373},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.5933097004890442},{"id":"https://openalex.org/keywords/semantics","display_name":"Semantics (computer science)","score":0.5664228200912476},{"id":"https://openalex.org/keywords/model-theory","display_name":"Model theory","score":0.5517475605010986},{"id":"https://openalex.org/keywords/algebraic-theory","display_name":"Algebraic theory","score":0.5324839949607849},{"id":"https://openalex.org/keywords/algebraic-semantics","display_name":"Algebraic semantics","score":0.4955641031265259},{"id":"https://openalex.org/keywords/programming-language","display_name":"Programming language","score":0.4845784902572632},{"id":"https://openalex.org/keywords/abstract-model-theory","display_name":"Abstract model theory","score":0.45594677329063416},{"id":"https://openalex.org/keywords/algebraic-number","display_name":"Algebraic number","score":0.44502145051956177},{"id":"https://openalex.org/keywords/stable-model-semantics","display_name":"Stable model semantics","score":0.4283389449119568},{"id":"https://openalex.org/keywords/order","display_name":"Order (exchange)","score":0.4176372289657593},{"id":"https://openalex.org/keywords/theoretical-computer-science","display_name":"Theoretical computer science","score":0.3932514488697052},{"id":"https://openalex.org/keywords/algebra-over-a-field","display_name":"Algebra over a field","score":0.3662370443344116},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.35438376665115356},{"id":"https://openalex.org/keywords/operational-semantics","display_name":"Operational semantics","score":0.2121988832950592},{"id":"https://openalex.org/keywords/discrete-mathematics","display_name":"Discrete mathematics","score":0.2010379433631897},{"id":"https://openalex.org/keywords/pure-mathematics","display_name":"Pure mathematics","score":0.07175913453102112}],"concepts":[{"id":"https://openalex.org/C128838566","wikidata":"https://www.wikidata.org/wiki/Q275603","display_name":"Logic programming","level":2,"score":0.645026683807373},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.5933097004890442},{"id":"https://openalex.org/C184337299","wikidata":"https://www.wikidata.org/wiki/Q1437428","display_name":"Semantics (computer science)","level":2,"score":0.5664228200912476},{"id":"https://openalex.org/C47030870","wikidata":"https://www.wikidata.org/wiki/Q467606","display_name":"Model theory","level":2,"score":0.5517475605010986},{"id":"https://openalex.org/C2779782106","wikidata":"https://www.wikidata.org/wiki/Q4724020","display_name":"Algebraic theory","level":3,"score":0.5324839949607849},{"id":"https://openalex.org/C2779729104","wikidata":"https://www.wikidata.org/wiki/Q4724013","display_name":"Algebraic semantics","level":3,"score":0.4955641031265259},{"id":"https://openalex.org/C199360897","wikidata":"https://www.wikidata.org/wiki/Q9143","display_name":"Programming language","level":1,"score":0.4845784902572632},{"id":"https://openalex.org/C161445131","wikidata":"https://www.wikidata.org/wiki/Q4669950","display_name":"Abstract model theory","level":5,"score":0.45594677329063416},{"id":"https://openalex.org/C9376300","wikidata":"https://www.wikidata.org/wiki/Q168817","display_name":"Algebraic number","level":2,"score":0.44502145051956177},{"id":"https://openalex.org/C127001435","wikidata":"https://www.wikidata.org/wiki/Q7595770","display_name":"Stable model semantics","level":4,"score":0.4283389449119568},{"id":"https://openalex.org/C182306322","wikidata":"https://www.wikidata.org/wiki/Q1779371","display_name":"Order (exchange)","level":2,"score":0.4176372289657593},{"id":"https://openalex.org/C80444323","wikidata":"https://www.wikidata.org/wiki/Q2878974","display_name":"Theoretical computer science","level":1,"score":0.3932514488697052},{"id":"https://openalex.org/C136119220","wikidata":"https://www.wikidata.org/wiki/Q1000660","display_name":"Algebra over a field","level":2,"score":0.3662370443344116},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.35438376665115356},{"id":"https://openalex.org/C156325763","wikidata":"https://www.wikidata.org/wiki/Q1930895","display_name":"Operational semantics","level":3,"score":0.2121988832950592},{"id":"https://openalex.org/C118615104","wikidata":"https://www.wikidata.org/wiki/Q121416","display_name":"Discrete mathematics","level":1,"score":0.2010379433631897},{"id":"https://openalex.org/C202444582","wikidata":"https://www.wikidata.org/wiki/Q837863","display_name":"Pure mathematics","level":1,"score":0.07175913453102112},{"id":"https://openalex.org/C162324750","wikidata":"https://www.wikidata.org/wiki/Q8134","display_name":"Economics","level":0,"score":0.0},{"id":"https://openalex.org/C23409769","wikidata":"https://www.wikidata.org/wiki/Q7310750","display_name":"Relationship between string theory and quantum field theory","level":4,"score":0.0},{"id":"https://openalex.org/C108568745","wikidata":"https://www.wikidata.org/wiki/Q234181","display_name":"Quantum gravity","level":3,"score":0.0},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.0},{"id":"https://openalex.org/C62520636","wikidata":"https://www.wikidata.org/wiki/Q944","display_name":"Quantum mechanics","level":1,"score":0.0},{"id":"https://openalex.org/C84114770","wikidata":"https://www.wikidata.org/wiki/Q46344","display_name":"Quantum","level":2,"score":0.0},{"id":"https://openalex.org/C10138342","wikidata":"https://www.wikidata.org/wiki/Q43015","display_name":"Finance","level":1,"score":0.0},{"id":"https://openalex.org/C134306372","wikidata":"https://www.wikidata.org/wiki/Q7754","display_name":"Mathematical analysis","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1016/0304-3975(89)90135-7","is_oa":false,"landing_page_url":"https://doi.org/10.1016/0304-3975(89)90135-7","pdf_url":null,"source":{"id":"https://openalex.org/S90727058","display_name":"Theoretical Computer Science","issn_l":"0304-3975","issn":["0304-3975","1879-2294"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310320990","host_organization_name":"Elsevier BV","host_organization_lineage":["https://openalex.org/P4310320990"],"host_organization_lineage_names":["Elsevier BV"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Theoretical Computer Science","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[{"id":"https://metadata.un.org/sdg/4","display_name":"Quality Education","score":0.41999998688697815}],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":14,"referenced_works":["https://openalex.org/W1519329408","https://openalex.org/W1528237133","https://openalex.org/W1561229932","https://openalex.org/W1564855885","https://openalex.org/W1766332311","https://openalex.org/W1852766467","https://openalex.org/W1996404651","https://openalex.org/W2108911687","https://openalex.org/W2212036697","https://openalex.org/W2610899059","https://openalex.org/W6638065767","https://openalex.org/W6649247312","https://openalex.org/W6737210039","https://openalex.org/W6814973350"],"related_works":["https://openalex.org/W2734938181","https://openalex.org/W2617530178","https://openalex.org/W1730099161","https://openalex.org/W2056477860","https://openalex.org/W1522025572","https://openalex.org/W2060936152","https://openalex.org/W2918662847","https://openalex.org/W4210807952","https://openalex.org/W2065358182","https://openalex.org/W126425937"],"abstract_inverted_index":null,"counts_by_year":[],"updated_date":"2026-03-10T14:07:55.174380","created_date":"2025-10-10T00:00:00"}
