{"id":"https://openalex.org/W2010333114","doi":"https://doi.org/10.1016/0743-1066(90)90022-w","title":"Equivalent logic programs","display_name":"Equivalent logic programs","publication_year":1990,"publication_date":"1990-05-01","ids":{"openalex":"https://openalex.org/W2010333114","doi":"https://doi.org/10.1016/0743-1066(90)90022-w","mag":"2010333114"},"language":"en","primary_location":{"id":"doi:10.1016/0743-1066(90)90022-w","doi":"https://doi.org/10.1016/0743-1066(90)90022-w","is_oa":true,"landing_page_url":"https://doi.org/10.1016/0743-1066(90)90022-w","pdf_url":"https://www.sciencedirect.com/science/article/pii/074310669090022W/pdf","source":{"id":"https://openalex.org/S86488779","display_name":"The Journal of Logic Programming","issn_l":"0743-1066","issn":["0743-1066","1873-5789"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["cwts-core"],"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":"The Journal of Logic Programming","raw_type":"journal-article"},"volume":null,"type":"article","is_traditional":true,"indexed_in":["crossref"],"open_access":{"is_oa":true,"oa_status":"bronze","oa_url":"https://www.sciencedirect.com/science/article/pii/074310669090022W/pdf","any_repository_has_fulltext":false},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5082295484","display_name":"Chan Kwok Hung","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I165932596","display_name":"National University of Singapore","ror":"https://ror.org/01tgyzw49","country_code":"SG","type":"education","lineage":["https://openalex.org/I165932596"]}],"countries":["SG"],"is_corresponding":true,"raw_author_name":"Chan Kwok Hung","raw_affiliation_strings":["Department of Information Systems , National Univer- sity of Singapore , Singapore 0511"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Information Systems , National Univer- sity of Singapore , Singapore 0511","institution_ids":["https://openalex.org/I165932596"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":["https://openalex.org/A5082295484"],"corresponding_institution_ids":["https://openalex.org/I165932596"],"apc_list":null,"apc_paid":null,"fwci":0.5479,"has_fulltext":true,"cited_by_count":3,"citation_normalized_percentile":{"value":0.69052103,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":null,"biblio":{"volume":"8","issue":"3","first_page":"187","last_page":"199"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10126","display_name":"Logic, programming, and type systems","score":0.6865000128746033,"subfield":{"id":"https://openalex.org/subfields/1712","display_name":"Software"},"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/T10126","display_name":"Logic, programming, and type systems","score":0.6865000128746033,"subfield":{"id":"https://openalex.org/subfields/1712","display_name":"Software"},"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/T11010","display_name":"Logic, Reasoning, and Knowledge","score":0.30000001192092896,"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/T11727","display_name":"Advanced Algebra and Logic","score":0.00559999980032444,"subfield":{"id":"https://openalex.org/subfields/1703","display_name":"Computational Theory and Mathematics"},"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/least-model","display_name":"least model","score":0.4320000112056732},{"id":"https://openalex.org/keywords/tail-recursion","display_name":"tail recursion","score":0.9750000238418579},{"id":"https://openalex.org/keywords/fixed-point-semantics","display_name":"fixed-point semantics","score":0.9150000214576721},{"id":"https://openalex.org/keywords/program-equivalence","display_name":"program equivalence","score":0.6140000224113464}],"concepts":[{"id":"https://openalex.org/C55439883","wikidata":"https://www.wikidata.org/wiki/Q360812","display_name":"Correctness","level":2,"score":0.6689032912254333},{"id":"https://openalex.org/C199360897","wikidata":"https://www.wikidata.org/wiki/Q9143","display_name":"Programming language","level":1,"score":0.6457896828651428},{"id":"https://openalex.org/C2039508","wikidata":"https://www.wikidata.org/wiki/Q7239631","display_name":"Predicate functor logic","level":5,"score":0.5960233211517334},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.5430060029029846},{"id":"https://openalex.org/C19689857","wikidata":"https://www.wikidata.org/wiki/Q4055684","display_name":"Predicate logic","level":3,"score":0.5299245715141296},{"id":"https://openalex.org/C81721847","wikidata":"https://www.wikidata.org/wiki/Q163468","display_name":"Prolog","level":2,"score":0.4920920729637146},{"id":"https://openalex.org/C2780069185","wikidata":"https://www.wikidata.org/wiki/Q7977945","display_name":"Equivalence (formal languages)","level":2,"score":0.4516127407550812},{"id":"https://openalex.org/C168773036","wikidata":"https://www.wikidata.org/wiki/Q264164","display_name":"Recursion (computer science)","level":2,"score":0.44683414697647095},{"id":"https://openalex.org/C128838566","wikidata":"https://www.wikidata.org/wiki/Q275603","display_name":"Logic programming","level":2,"score":0.4181937873363495},{"id":"https://openalex.org/C80444323","wikidata":"https://www.wikidata.org/wiki/Q2878974","display_name":"Theoretical computer science","level":1,"score":0.4015083611011505},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.38224053382873535},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.3345981538295746},{"id":"https://openalex.org/C118615104","wikidata":"https://www.wikidata.org/wiki/Q121416","display_name":"Discrete mathematics","level":1,"score":0.31440916657447815},{"id":"https://openalex.org/C203659156","wikidata":"https://www.wikidata.org/wiki/Q6934805","display_name":"Multimodal logic","level":3,"score":0.18161633610725403},{"id":"https://openalex.org/C102993220","wikidata":"https://www.wikidata.org/wiki/Q387196","display_name":"Description logic","level":2,"score":0.1472611427307129},{"id":"https://openalex.org/C3845977","wikidata":"https://www.wikidata.org/wiki/Q4826262","display_name":"Autoepistemic logic","level":4,"score":0.11391666531562805}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1016/0743-1066(90)90022-w","doi":"https://doi.org/10.1016/0743-1066(90)90022-w","is_oa":true,"landing_page_url":"https://doi.org/10.1016/0743-1066(90)90022-w","pdf_url":"https://www.sciencedirect.com/science/article/pii/074310669090022W/pdf","source":{"id":"https://openalex.org/S86488779","display_name":"The Journal of Logic Programming","issn_l":"0743-1066","issn":["0743-1066","1873-5789"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["cwts-core"],"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":"The Journal of Logic Programming","raw_type":"journal-article"}],"best_oa_location":{"id":"doi:10.1016/0743-1066(90)90022-w","doi":"https://doi.org/10.1016/0743-1066(90)90022-w","is_oa":true,"landing_page_url":"https://doi.org/10.1016/0743-1066(90)90022-w","pdf_url":"https://www.sciencedirect.com/science/article/pii/074310669090022W/pdf","source":{"id":"https://openalex.org/S86488779","display_name":"The Journal of Logic Programming","issn_l":"0743-1066","issn":["0743-1066","1873-5789"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["cwts-core"],"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":"The Journal of Logic Programming","raw_type":"journal-article"},"sustainable_development_goals":[],"study_designs":[],"awards":[],"funders":[],"has_content":{"pdf":true,"grobid_xml":true},"content_urls":{"pdf":"https://content.openalex.org/works/W2010333114.pdf","grobid_xml":"https://content.openalex.org/works/W2010333114.grobid-xml"},"referenced_works_count":17,"referenced_works":["https://openalex.org/W14274997","https://openalex.org/W61686890","https://openalex.org/W121190113","https://openalex.org/W134284596","https://openalex.org/W299050912","https://openalex.org/W651018310","https://openalex.org/W1533846661","https://openalex.org/W1541434994","https://openalex.org/W1546657258","https://openalex.org/W1575515811","https://openalex.org/W1993224527","https://openalex.org/W2017637575","https://openalex.org/W2019695296","https://openalex.org/W2040724868","https://openalex.org/W2108911687","https://openalex.org/W2143382644","https://openalex.org/W2977904728"],"related_works":["https://openalex.org/W1993224527","https://openalex.org/W1983328110","https://openalex.org/W1536163973","https://openalex.org/W3021195293","https://openalex.org/W4391799329","https://openalex.org/W2167765443","https://openalex.org/W1479817589","https://openalex.org/W7098685894","https://openalex.org/W1582978375","https://openalex.org/W1601153438"],"abstract_inverted_index":null,"counts_by_year":[],"updated_date":"2026-11-04T10:54:05.112534","created_date":"2016-06-24T00:00:00"}
