{"id":"https://openalex.org/W1497911989","doi":"https://doi.org/10.1007/3-540-57887-0_114","title":"Syntactic definitions of undefined: On defining the undefined","display_name":"Syntactic definitions of undefined: On defining the undefined","publication_year":1994,"publication_date":"1994-01-01","ids":{"openalex":"https://openalex.org/W1497911989","doi":"https://doi.org/10.1007/3-540-57887-0_114","mag":"1497911989"},"language":"en","primary_location":{"id":"doi:10.1007/3-540-57887-0_114","is_oa":false,"landing_page_url":"https://doi.org/10.1007/3-540-57887-0_114","pdf_url":null,"source":{"id":"https://openalex.org/S106296714","display_name":"Lecture notes in computer science","issn_l":"0302-9743","issn":["0302-9743","1611-3349"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310319900","host_organization_name":"Springer Science+Business Media","host_organization_lineage":["https://openalex.org/P4310319900","https://openalex.org/P4310319965"],"host_organization_lineage_names":["Springer Science+Business Media","Springer Nature"],"type":"book series"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Lecture Notes in Computer Science","raw_type":"book-chapter"},"type":"book-chapter","indexed_in":["crossref"],"open_access":{"is_oa":true,"oa_status":"green","oa_url":"https://ir.cwi.nl/pub/26550/TACS1111.pdf","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5064696313","display_name":"Zena M. Ariola","orcid":"https://orcid.org/0000-0001-5551-8294"},"institutions":[{"id":"https://openalex.org/I181233156","display_name":"University of Oregon","ror":"https://ror.org/0293rh119","country_code":"US","type":"education","lineage":["https://openalex.org/I181233156"]}],"countries":["US"],"is_corresponding":true,"raw_author_name":"Zena Ariola","raw_affiliation_strings":["Computer and Information Science Department, University of Oregon, Eugene, Oregon"],"affiliations":[{"raw_affiliation_string":"Computer and Information Science Department, University of Oregon, Eugene, Oregon","institution_ids":["https://openalex.org/I181233156"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5063428723","display_name":"Richard Kennaway","orcid":"https://orcid.org/0000-0001-9702-644X"},"institutions":[{"id":"https://openalex.org/I1118541","display_name":"University of East Anglia","ror":"https://ror.org/026k5mg93","country_code":"GB","type":"education","lineage":["https://openalex.org/I1118541"]}],"countries":["GB"],"is_corresponding":false,"raw_author_name":"Richard Kennaway","raw_affiliation_strings":["School of Information Systems, University of East Anglia, NR4 7TJ, Norwich, UK"],"affiliations":[{"raw_affiliation_string":"School of Information Systems, University of East Anglia, NR4 7TJ, Norwich, UK","institution_ids":["https://openalex.org/I1118541"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5106087472","display_name":"Jan Willem Klop","orcid":null},"institutions":[{"id":"https://openalex.org/I1341640284","display_name":"Centrum Wiskunde & Informatica","ror":"https://ror.org/00x7ekv49","country_code":"NL","type":"facility","lineage":["https://openalex.org/I1341640284","https://openalex.org/I2800991832"]}],"countries":["NL"],"is_corresponding":false,"raw_author_name":"Jan Willem Klop","raw_affiliation_strings":["CWI, P.O. Box 94079, 1090, GB Amsterdam, the Netherlands"],"affiliations":[{"raw_affiliation_string":"CWI, P.O. Box 94079, 1090, GB Amsterdam, the Netherlands","institution_ids":["https://openalex.org/I1341640284"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5017429584","display_name":"Ronan Sleep","orcid":null},"institutions":[{"id":"https://openalex.org/I1118541","display_name":"University of East Anglia","ror":"https://ror.org/026k5mg93","country_code":"GB","type":"education","lineage":["https://openalex.org/I1118541"]}],"countries":["GB"],"is_corresponding":false,"raw_author_name":"Ronan Sleep","raw_affiliation_strings":["School of Information Systems, University of East Anglia, NR4 7TJ, Norwich, UK"],"affiliations":[{"raw_affiliation_string":"School of Information Systems, University of East Anglia, NR4 7TJ, Norwich, UK","institution_ids":["https://openalex.org/I1118541"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5111428676","display_name":"Fer-Jan de Vries","orcid":null},"institutions":[{"id":"https://openalex.org/I1341640284","display_name":"Centrum Wiskunde & Informatica","ror":"https://ror.org/00x7ekv49","country_code":"NL","type":"facility","lineage":["https://openalex.org/I1341640284","https://openalex.org/I2800991832"]}],"countries":["NL"],"is_corresponding":false,"raw_author_name":"Fer-Jan Vries","raw_affiliation_strings":["CWI, P.O. Box 94079, 1090, GB Amsterdam, the Netherlands"],"affiliations":[{"raw_affiliation_string":"CWI, P.O. Box 94079, 1090, GB Amsterdam, the Netherlands","institution_ids":["https://openalex.org/I1341640284"]}]}],"institutions":[],"countries_distinct_count":3,"institutions_distinct_count":5,"corresponding_author_ids":["https://openalex.org/A5064696313"],"corresponding_institution_ids":["https://openalex.org/I181233156"],"apc_list":{"value":5000,"currency":"EUR","value_usd":5392},"apc_paid":null,"fwci":4.264,"has_fulltext":true,"cited_by_count":14,"citation_normalized_percentile":{"value":0.93944768,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":90,"max":94},"biblio":{"volume":null,"issue":null,"first_page":"543","last_page":"554"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10215","display_name":"Semantic Web and Ontologies","score":0.9972000122070312,"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/T10215","display_name":"Semantic Web and Ontologies","score":0.9972000122070312,"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":0.9940999746322632,"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":0.9916999936103821,"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/axiom","display_name":"Axiom","score":0.8481591939926147},{"id":"https://openalex.org/keywords/term","display_name":"Term (time)","score":0.6252635717391968},{"id":"https://openalex.org/keywords/axiomatic-system","display_name":"Axiomatic system","score":0.5219033360481262},{"id":"https://openalex.org/keywords/property","display_name":"Property (philosophy)","score":0.5202645063400269},{"id":"https://openalex.org/keywords/denotational-semantics","display_name":"Denotational semantics","score":0.5097631812095642},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.5004293918609619},{"id":"https://openalex.org/keywords/domain-theory","display_name":"Domain theory","score":0.4967048764228821},{"id":"https://openalex.org/keywords/domain","display_name":"Domain (mathematical analysis)","score":0.48073387145996094},{"id":"https://openalex.org/keywords/set","display_name":"Set (abstract data type)","score":0.46984830498695374},{"id":"https://openalex.org/keywords/normalisation-by-evaluation","display_name":"Normalisation by evaluation","score":0.45047861337661743},{"id":"https://openalex.org/keywords/semantics","display_name":"Semantics (computer science)","score":0.4158437252044678},{"id":"https://openalex.org/keywords/algebra-over-a-field","display_name":"Algebra over a field","score":0.40848416090011597},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.3813851773738861},{"id":"https://openalex.org/keywords/calculus","display_name":"Calculus (dental)","score":0.35444530844688416},{"id":"https://openalex.org/keywords/discrete-mathematics","display_name":"Discrete mathematics","score":0.33344388008117676},{"id":"https://openalex.org/keywords/operational-semantics","display_name":"Operational semantics","score":0.2929908335208893},{"id":"https://openalex.org/keywords/pure-mathematics","display_name":"Pure mathematics","score":0.24890682101249695},{"id":"https://openalex.org/keywords/programming-language","display_name":"Programming language","score":0.1271931529045105},{"id":"https://openalex.org/keywords/epistemology","display_name":"Epistemology","score":0.07337412238121033},{"id":"https://openalex.org/keywords/philosophy","display_name":"Philosophy","score":0.05351349711418152}],"concepts":[{"id":"https://openalex.org/C167729594","wikidata":"https://www.wikidata.org/wiki/Q17736","display_name":"Axiom","level":2,"score":0.8481591939926147},{"id":"https://openalex.org/C61797465","wikidata":"https://www.wikidata.org/wiki/Q1188986","display_name":"Term (time)","level":2,"score":0.6252635717391968},{"id":"https://openalex.org/C125773388","wikidata":"https://www.wikidata.org/wiki/Q792542","display_name":"Axiomatic system","level":3,"score":0.5219033360481262},{"id":"https://openalex.org/C189950617","wikidata":"https://www.wikidata.org/wiki/Q937228","display_name":"Property (philosophy)","level":2,"score":0.5202645063400269},{"id":"https://openalex.org/C207648694","wikidata":"https://www.wikidata.org/wiki/Q1189746","display_name":"Denotational semantics","level":4,"score":0.5097631812095642},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.5004293918609619},{"id":"https://openalex.org/C29585364","wikidata":"https://www.wikidata.org/wiki/Q1079166","display_name":"Domain theory","level":2,"score":0.4967048764228821},{"id":"https://openalex.org/C36503486","wikidata":"https://www.wikidata.org/wiki/Q11235244","display_name":"Domain (mathematical analysis)","level":2,"score":0.48073387145996094},{"id":"https://openalex.org/C177264268","wikidata":"https://www.wikidata.org/wiki/Q1514741","display_name":"Set (abstract data type)","level":2,"score":0.46984830498695374},{"id":"https://openalex.org/C87365073","wikidata":"https://www.wikidata.org/wiki/Q7051843","display_name":"Normalisation by evaluation","level":5,"score":0.45047861337661743},{"id":"https://openalex.org/C184337299","wikidata":"https://www.wikidata.org/wiki/Q1437428","display_name":"Semantics (computer science)","level":2,"score":0.4158437252044678},{"id":"https://openalex.org/C136119220","wikidata":"https://www.wikidata.org/wiki/Q1000660","display_name":"Algebra over a field","level":2,"score":0.40848416090011597},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.3813851773738861},{"id":"https://openalex.org/C2777686260","wikidata":"https://www.wikidata.org/wiki/Q144037","display_name":"Calculus (dental)","level":2,"score":0.35444530844688416},{"id":"https://openalex.org/C118615104","wikidata":"https://www.wikidata.org/wiki/Q121416","display_name":"Discrete mathematics","level":1,"score":0.33344388008117676},{"id":"https://openalex.org/C156325763","wikidata":"https://www.wikidata.org/wiki/Q1930895","display_name":"Operational semantics","level":3,"score":0.2929908335208893},{"id":"https://openalex.org/C202444582","wikidata":"https://www.wikidata.org/wiki/Q837863","display_name":"Pure mathematics","level":1,"score":0.24890682101249695},{"id":"https://openalex.org/C199360897","wikidata":"https://www.wikidata.org/wiki/Q9143","display_name":"Programming language","level":1,"score":0.1271931529045105},{"id":"https://openalex.org/C111472728","wikidata":"https://www.wikidata.org/wiki/Q9471","display_name":"Epistemology","level":1,"score":0.07337412238121033},{"id":"https://openalex.org/C138885662","wikidata":"https://www.wikidata.org/wiki/Q5891","display_name":"Philosophy","level":0,"score":0.05351349711418152},{"id":"https://openalex.org/C71924100","wikidata":"https://www.wikidata.org/wiki/Q11190","display_name":"Medicine","level":0,"score":0.0},{"id":"https://openalex.org/C199343813","wikidata":"https://www.wikidata.org/wiki/Q12128","display_name":"Dentistry","level":1,"score":0.0},{"id":"https://openalex.org/C2524010","wikidata":"https://www.wikidata.org/wiki/Q8087","display_name":"Geometry","level":1,"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/C134306372","wikidata":"https://www.wikidata.org/wiki/Q7754","display_name":"Mathematical analysis","level":1,"score":0.0}],"mesh":[],"locations_count":3,"locations":[{"id":"doi:10.1007/3-540-57887-0_114","is_oa":false,"landing_page_url":"https://doi.org/10.1007/3-540-57887-0_114","pdf_url":null,"source":{"id":"https://openalex.org/S106296714","display_name":"Lecture notes in computer science","issn_l":"0302-9743","issn":["0302-9743","1611-3349"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310319900","host_organization_name":"Springer Science+Business Media","host_organization_lineage":["https://openalex.org/P4310319900","https://openalex.org/P4310319965"],"host_organization_lineage_names":["Springer Science+Business Media","Springer Nature"],"type":"book series"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Lecture Notes in Computer Science","raw_type":"book-chapter"},{"id":"pmh:oai:cwi.nl:26550","is_oa":true,"landing_page_url":"https://ir.cwi.nl/pub/26550","pdf_url":"https://ir.cwi.nl/pub/26550/TACS1111.pdf","source":{"id":"https://openalex.org/S7407055335","display_name":"Centrum Wiskunde & Informatica (CWI), the national research institute for mathematics and computer science in the Netherlands","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":"info:eu-repo/semantics/conferenceObject"},{"id":"pmh:cwi:oai:cwi.nl:1967","is_oa":true,"landing_page_url":"https://ir.cwi.nl/pub/1967","pdf_url":null,"source":{"id":"https://openalex.org/S4306401843","display_name":"Data Archiving and Networked Services (DANS)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I1322597698","host_organization_name":"Royal Netherlands Academy of Arts and Sciences","host_organization_lineage":["https://openalex.org/I1322597698"],"host_organization_lineage_names":[],"type":"repository"},"license":"other-oa","license_id":"https://openalex.org/licenses/other-oa","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"","raw_type":"info:eu-repo/semantics/conferencepaper"}],"best_oa_location":{"id":"pmh:oai:cwi.nl:26550","is_oa":true,"landing_page_url":"https://ir.cwi.nl/pub/26550","pdf_url":"https://ir.cwi.nl/pub/26550/TACS1111.pdf","source":{"id":"https://openalex.org/S7407055335","display_name":"Centrum Wiskunde & Informatica (CWI), the national research institute for mathematics and computer science in the Netherlands","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":"info:eu-repo/semantics/conferenceObject"},"sustainable_development_goals":[],"awards":[],"funders":[],"has_content":{"pdf":true,"grobid_xml":true},"content_urls":{"pdf":"https://content.openalex.org/works/W1497911989.pdf","grobid_xml":"https://content.openalex.org/works/W1497911989.grobid-xml"},"referenced_works_count":8,"referenced_works":["https://openalex.org/W1486611887","https://openalex.org/W1974817955","https://openalex.org/W2084745607","https://openalex.org/W2154273644","https://openalex.org/W2166184800","https://openalex.org/W2167843643","https://openalex.org/W6684478516","https://openalex.org/W7020193950"],"related_works":["https://openalex.org/W2604377475","https://openalex.org/W2110748634","https://openalex.org/W1584038246","https://openalex.org/W3036972880","https://openalex.org/W2032453924","https://openalex.org/W1526135121","https://openalex.org/W1929699059","https://openalex.org/W1844766828","https://openalex.org/W1558234878","https://openalex.org/W4234105222"],"abstract_inverted_index":null,"counts_by_year":[{"year":2012,"cited_by_count":1}],"updated_date":"2026-04-05T17:49:38.594831","created_date":"2025-10-10T00:00:00"}
