{"id":"https://openalex.org/W2069709605","doi":"https://doi.org/10.1016/0022-0000(79)90046-1","title":"Propositional dynamic logic of regular programs","display_name":"Propositional dynamic logic of regular programs","publication_year":1979,"publication_date":"1979-04-01","ids":{"openalex":"https://openalex.org/W2069709605","doi":"https://doi.org/10.1016/0022-0000(79)90046-1","mag":"2069709605"},"language":"en","primary_location":{"id":"doi:10.1016/0022-0000(79)90046-1","is_oa":false,"landing_page_url":"https://doi.org/10.1016/0022-0000(79)90046-1","pdf_url":null,"source":{"id":"https://openalex.org/S141020589","display_name":"Journal of Computer and System Sciences","issn_l":"0022-0000","issn":["0022-0000","1090-2724"],"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":"Journal of Computer and System Sciences","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/A5040882616","display_name":"Michael J. Fischer","orcid":"https://orcid.org/0009-0001-1713-9741"},"institutions":[{"id":"https://openalex.org/I201448701","display_name":"University of Washington","ror":"https://ror.org/00cvxb145","country_code":"US","type":"education","lineage":["https://openalex.org/I201448701"]}],"countries":["US"],"is_corresponding":true,"raw_author_name":"Michael J. Fischer","raw_affiliation_strings":["Department of Computer Science, University of Washington, Seattle, Washington 98195, USA","Department of Computer Science, University of Washington, Seattle, washington 98195, USA"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Computer Science, University of Washington, Seattle, Washington 98195, USA","institution_ids":["https://openalex.org/I201448701"]},{"raw_affiliation_string":"Department of Computer Science, University of Washington, Seattle, washington 98195, USA","institution_ids":["https://openalex.org/I201448701"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5043369298","display_name":"Richard E. Ladner","orcid":"https://orcid.org/0000-0001-9413-6774"},"institutions":[{"id":"https://openalex.org/I201448701","display_name":"University of Washington","ror":"https://ror.org/00cvxb145","country_code":"US","type":"education","lineage":["https://openalex.org/I201448701"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Richard E. Ladner","raw_affiliation_strings":["Department of Computer Science, University of Washington, Seattle, Washington 98195, USA","Department of Computer Science, University of Washington, Seattle, washington 98195, USA"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Computer Science, University of Washington, Seattle, Washington 98195, USA","institution_ids":["https://openalex.org/I201448701"]},{"raw_affiliation_string":"Department of Computer Science, University of Washington, Seattle, washington 98195, USA","institution_ids":["https://openalex.org/I201448701"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":2,"corresponding_author_ids":["https://openalex.org/A5040882616"],"corresponding_institution_ids":["https://openalex.org/I201448701"],"apc_list":{"value":2520,"currency":"USD","value_usd":2520},"apc_paid":null,"fwci":46.7322,"has_fulltext":false,"cited_by_count":1186,"citation_normalized_percentile":{"value":0.99836577,"is_in_top_1_percent":true,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":99,"max":100},"biblio":{"volume":"18","issue":"2","first_page":"194","last_page":"211"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10126","display_name":"Logic, programming, and type systems","score":0.9998999834060669,"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/T10126","display_name":"Logic, programming, and type systems","score":0.9998999834060669,"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/T11010","display_name":"Logic, Reasoning, and Knowledge","score":0.9994999766349792,"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/T10142","display_name":"Formal Methods in Verification","score":0.9986000061035156,"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/dynamic-logic","display_name":"Dynamic logic (digital electronics)","score":0.6992855072021484},{"id":"https://openalex.org/keywords/propositional-variable","display_name":"Propositional variable","score":0.6725994944572449},{"id":"https://openalex.org/keywords/well-formed-formula","display_name":"Well-formed formula","score":0.6229905486106873},{"id":"https://openalex.org/keywords/zeroth-order-logic","display_name":"Zeroth-order logic","score":0.6123257279396057},{"id":"https://openalex.org/keywords/nondeterministic-algorithm","display_name":"Nondeterministic algorithm","score":0.581536591053009},{"id":"https://openalex.org/keywords/modal-logic","display_name":"Modal logic","score":0.5513128042221069},{"id":"https://openalex.org/keywords/satisfiability","display_name":"Satisfiability","score":0.5469494462013245},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.48730695247650146},{"id":"https://openalex.org/keywords/autoepistemic-logic","display_name":"Autoepistemic logic","score":0.4832947552204132},{"id":"https://openalex.org/keywords/equivalence","display_name":"Equivalence (formal languages)","score":0.4535249173641205},{"id":"https://openalex.org/keywords/correctness","display_name":"Correctness","score":0.43167638778686523},{"id":"https://openalex.org/keywords/modal-\u03bc-calculus","display_name":"Modal \u03bc-calculus","score":0.41660332679748535},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.41633424162864685},{"id":"https://openalex.org/keywords/intermediate-logic","display_name":"Intermediate logic","score":0.4095906615257263},{"id":"https://openalex.org/keywords/discrete-mathematics","display_name":"Discrete mathematics","score":0.34674370288848877},{"id":"https://openalex.org/keywords/programming-language","display_name":"Programming language","score":0.3279566466808319},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.3187412619590759},{"id":"https://openalex.org/keywords/modal","display_name":"Modal","score":0.31767016649246216},{"id":"https://openalex.org/keywords/multimodal-logic","display_name":"Multimodal logic","score":0.28386300802230835},{"id":"https://openalex.org/keywords/description-logic","display_name":"Description logic","score":0.22471153736114502}],"concepts":[{"id":"https://openalex.org/C2777796570","wikidata":"https://www.wikidata.org/wiki/Q2351326","display_name":"Dynamic logic (digital electronics)","level":4,"score":0.6992855072021484},{"id":"https://openalex.org/C14523651","wikidata":"https://www.wikidata.org/wiki/Q3492863","display_name":"Propositional variable","level":4,"score":0.6725994944572449},{"id":"https://openalex.org/C191222856","wikidata":"https://www.wikidata.org/wiki/Q655328","display_name":"Well-formed formula","level":5,"score":0.6229905486106873},{"id":"https://openalex.org/C110039528","wikidata":"https://www.wikidata.org/wiki/Q8069651","display_name":"Zeroth-order logic","level":4,"score":0.6123257279396057},{"id":"https://openalex.org/C176181172","wikidata":"https://www.wikidata.org/wiki/Q3490301","display_name":"Nondeterministic algorithm","level":2,"score":0.581536591053009},{"id":"https://openalex.org/C27508121","wikidata":"https://www.wikidata.org/wiki/Q210841","display_name":"Modal logic","level":3,"score":0.5513128042221069},{"id":"https://openalex.org/C168773769","wikidata":"https://www.wikidata.org/wiki/Q1350299","display_name":"Satisfiability","level":2,"score":0.5469494462013245},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.48730695247650146},{"id":"https://openalex.org/C3845977","wikidata":"https://www.wikidata.org/wiki/Q4826262","display_name":"Autoepistemic logic","level":4,"score":0.4832947552204132},{"id":"https://openalex.org/C2780069185","wikidata":"https://www.wikidata.org/wiki/Q7977945","display_name":"Equivalence (formal languages)","level":2,"score":0.4535249173641205},{"id":"https://openalex.org/C55439883","wikidata":"https://www.wikidata.org/wiki/Q360812","display_name":"Correctness","level":2,"score":0.43167638778686523},{"id":"https://openalex.org/C173125200","wikidata":"https://www.wikidata.org/wiki/Q5275729","display_name":"Modal \u03bc-calculus","level":5,"score":0.41660332679748535},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.41633424162864685},{"id":"https://openalex.org/C33203268","wikidata":"https://www.wikidata.org/wiki/Q5361594","display_name":"Intermediate logic","level":3,"score":0.4095906615257263},{"id":"https://openalex.org/C118615104","wikidata":"https://www.wikidata.org/wiki/Q121416","display_name":"Discrete mathematics","level":1,"score":0.34674370288848877},{"id":"https://openalex.org/C199360897","wikidata":"https://www.wikidata.org/wiki/Q9143","display_name":"Programming language","level":1,"score":0.3279566466808319},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.3187412619590759},{"id":"https://openalex.org/C71139939","wikidata":"https://www.wikidata.org/wiki/Q910194","display_name":"Modal","level":2,"score":0.31767016649246216},{"id":"https://openalex.org/C203659156","wikidata":"https://www.wikidata.org/wiki/Q6934805","display_name":"Multimodal logic","level":3,"score":0.28386300802230835},{"id":"https://openalex.org/C102993220","wikidata":"https://www.wikidata.org/wiki/Q387196","display_name":"Description logic","level":2,"score":0.22471153736114502},{"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/C172385210","wikidata":"https://www.wikidata.org/wiki/Q5339","display_name":"Transistor","level":3,"score":0.0},{"id":"https://openalex.org/C165801399","wikidata":"https://www.wikidata.org/wiki/Q25428","display_name":"Voltage","level":2,"score":0.0},{"id":"https://openalex.org/C185592680","wikidata":"https://www.wikidata.org/wiki/Q2329","display_name":"Chemistry","level":0,"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/C188027245","wikidata":"https://www.wikidata.org/wiki/Q750446","display_name":"Polymer chemistry","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1016/0022-0000(79)90046-1","is_oa":false,"landing_page_url":"https://doi.org/10.1016/0022-0000(79)90046-1","pdf_url":null,"source":{"id":"https://openalex.org/S141020589","display_name":"Journal of Computer and System Sciences","issn_l":"0022-0000","issn":["0022-0000","1090-2724"],"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":"Journal of Computer and System Sciences","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[{"display_name":"Peace, Justice and strong institutions","score":0.8299999833106995,"id":"https://metadata.un.org/sdg/16"}],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":30,"referenced_works":["https://openalex.org/W1489192843","https://openalex.org/W1567084588","https://openalex.org/W1572219859","https://openalex.org/W1574129634","https://openalex.org/W2001832317","https://openalex.org/W2026191634","https://openalex.org/W2059034970","https://openalex.org/W2066210260","https://openalex.org/W2073491323","https://openalex.org/W2075277371","https://openalex.org/W2094912919","https://openalex.org/W2113074643","https://openalex.org/W2132389270","https://openalex.org/W2737885910","https://openalex.org/W2987907651","https://openalex.org/W3146075203","https://openalex.org/W3151246481","https://openalex.org/W3160099363","https://openalex.org/W3182062373","https://openalex.org/W4210277052","https://openalex.org/W6629209771","https://openalex.org/W6633930709","https://openalex.org/W6635658753","https://openalex.org/W6656927764","https://openalex.org/W6665428298","https://openalex.org/W6674127467","https://openalex.org/W6676680617","https://openalex.org/W6676742495","https://openalex.org/W6792635071","https://openalex.org/W6822517396"],"related_works":["https://openalex.org/W2081976468","https://openalex.org/W4251854500","https://openalex.org/W1573206013","https://openalex.org/W3137333128","https://openalex.org/W3100510665","https://openalex.org/W2963419277","https://openalex.org/W4387757795","https://openalex.org/W2071436802","https://openalex.org/W4256471199","https://openalex.org/W2028191118"],"abstract_inverted_index":null,"counts_by_year":[{"year":2026,"cited_by_count":3},{"year":2025,"cited_by_count":14},{"year":2024,"cited_by_count":17},{"year":2023,"cited_by_count":24},{"year":2022,"cited_by_count":29},{"year":2021,"cited_by_count":41},{"year":2020,"cited_by_count":30},{"year":2019,"cited_by_count":37},{"year":2018,"cited_by_count":39},{"year":2017,"cited_by_count":27},{"year":2016,"cited_by_count":32},{"year":2015,"cited_by_count":41},{"year":2014,"cited_by_count":44},{"year":2013,"cited_by_count":34},{"year":2012,"cited_by_count":40}],"updated_date":"2026-05-12T08:28:47.272897","created_date":"2025-10-10T00:00:00"}
