{"id":"https://openalex.org/W2129777450","doi":"https://doi.org/10.1145/2535838.2535856","title":"Closed type families with overlapping equations","display_name":"Closed type families with overlapping equations","publication_year":2014,"publication_date":"2014-01-08","ids":{"openalex":"https://openalex.org/W2129777450","doi":"https://doi.org/10.1145/2535838.2535856","mag":"2129777450"},"language":"en","primary_location":{"id":"doi:10.1145/2535838.2535856","is_oa":false,"landing_page_url":"https://doi.org/10.1145/2535838.2535856","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Proceedings of the 41st ACM SIGPLAN-SIGACT Symposium on Principles of Programming Languages","raw_type":"proceedings-article"},"type":"conference-paper","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/A5082913747","display_name":"Richard A. Eisenberg","orcid":"https://orcid.org/0000-0002-7669-9781"},"institutions":[{"id":"https://openalex.org/I79576946","display_name":"University of Pennsylvania","ror":"https://ror.org/00b30xv10","country_code":"US","type":"education","lineage":["https://openalex.org/I79576946"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Richard A. Eisenberg","raw_affiliation_strings":["University of Pennsylvania, Philadelphia, PA, USA"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"University of Pennsylvania, Philadelphia, PA, USA","institution_ids":["https://openalex.org/I79576946"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5029108294","display_name":"Dimitrios Vytiniotis","orcid":null},"institutions":[{"id":"https://openalex.org/I1290206253","display_name":"Microsoft (United States)","ror":"https://ror.org/00d0nc645","country_code":"US","type":"company","lineage":["https://openalex.org/I1290206253"]},{"id":"https://openalex.org/I4210164937","display_name":"Microsoft Research (United Kingdom)","ror":"https://ror.org/05k87vq12","country_code":"GB","type":"company","lineage":["https://openalex.org/I1290206253","https://openalex.org/I4210164937"]}],"countries":["GB","US"],"is_corresponding":false,"raw_author_name":"Dimitrios Vytiniotis","raw_affiliation_strings":["Microsoft Research Cambridge, Cambridge, United Kingdom","Microsoft Research Cambridge, Cambridge, United Kingdom#TAB#"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Microsoft Research Cambridge, Cambridge, United Kingdom","institution_ids":["https://openalex.org/I4210164937"]},{"raw_affiliation_string":"Microsoft Research Cambridge, Cambridge, United Kingdom#TAB#","institution_ids":["https://openalex.org/I1290206253"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5027817074","display_name":"Simon Peyton Jones","orcid":"https://orcid.org/0000-0002-6085-1435"},"institutions":[{"id":"https://openalex.org/I1290206253","display_name":"Microsoft (United States)","ror":"https://ror.org/00d0nc645","country_code":"US","type":"company","lineage":["https://openalex.org/I1290206253"]},{"id":"https://openalex.org/I4210164937","display_name":"Microsoft Research (United Kingdom)","ror":"https://ror.org/05k87vq12","country_code":"GB","type":"company","lineage":["https://openalex.org/I1290206253","https://openalex.org/I4210164937"]}],"countries":["GB","US"],"is_corresponding":false,"raw_author_name":"Simon Peyton Jones","raw_affiliation_strings":["Microsoft Research Cambridge, Cambridge, United Kingdom","Microsoft Research Cambridge, Cambridge, United Kingdom#TAB#"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Microsoft Research Cambridge, Cambridge, United Kingdom","institution_ids":["https://openalex.org/I4210164937"]},{"raw_affiliation_string":"Microsoft Research Cambridge, Cambridge, United Kingdom#TAB#","institution_ids":["https://openalex.org/I1290206253"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5049220962","display_name":"Stephanie Weirich","orcid":"https://orcid.org/0000-0002-6756-9168"},"institutions":[{"id":"https://openalex.org/I79576946","display_name":"University of Pennsylvania","ror":"https://ror.org/00b30xv10","country_code":"US","type":"education","lineage":["https://openalex.org/I79576946"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Stephanie Weirich","raw_affiliation_strings":["University of Pennsylvania, Philadelphia, PA, USA"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"University of Pennsylvania, Philadelphia, PA, USA","institution_ids":["https://openalex.org/I79576946"]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":3,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":null,"has_fulltext":false,"cited_by_count":81,"citation_normalized_percentile":null,"cited_by_percentile_year":null,"biblio":{"volume":null,"issue":null,"first_page":"671","last_page":"683"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10126","display_name":"Logic, programming, and type systems","score":0.9991000294685364,"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":0.9991000294685364,"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/T10317","display_name":"Advanced Database Systems and Queries","score":0.9796000123023987,"subfield":{"id":"https://openalex.org/subfields/1705","display_name":"Computer Networks and Communications"},"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/T10260","display_name":"Software Engineering Research","score":0.9779000282287598,"subfield":{"id":"https://openalex.org/subfields/1710","display_name":"Information Systems"},"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/haskell","display_name":"Haskell","score":0.9865279793739319},{"id":"https://openalex.org/keywords/metatheory","display_name":"Metatheory","score":0.9024280309677124},{"id":"https://openalex.org/keywords/type","display_name":"Type (biology)","score":0.7285653948783875},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.6927816271781921},{"id":"https://openalex.org/keywords/type-theory","display_name":"Type theory","score":0.6385157108306885},{"id":"https://openalex.org/keywords/functional-programming","display_name":"Functional programming","score":0.5955159664154053},{"id":"https://openalex.org/keywords/simple","display_name":"Simple (philosophy)","score":0.5871801972389221},{"id":"https://openalex.org/keywords/programming-language","display_name":"Programming language","score":0.5602442026138306},{"id":"https://openalex.org/keywords/theoretical-computer-science","display_name":"Theoretical computer science","score":0.39982789754867554},{"id":"https://openalex.org/keywords/epistemology","display_name":"Epistemology","score":0.10974675416946411}],"concepts":[{"id":"https://openalex.org/C2780624054","wikidata":"https://www.wikidata.org/wiki/Q34010","display_name":"Haskell","level":3,"score":0.9865279793739319},{"id":"https://openalex.org/C39387531","wikidata":"https://www.wikidata.org/wiki/Q1096708","display_name":"Metatheory","level":2,"score":0.9024280309677124},{"id":"https://openalex.org/C2777299769","wikidata":"https://www.wikidata.org/wiki/Q3707858","display_name":"Type (biology)","level":2,"score":0.7285653948783875},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.6927816271781921},{"id":"https://openalex.org/C93682546","wikidata":"https://www.wikidata.org/wiki/Q1056428","display_name":"Type theory","level":3,"score":0.6385157108306885},{"id":"https://openalex.org/C42383842","wikidata":"https://www.wikidata.org/wiki/Q193076","display_name":"Functional programming","level":2,"score":0.5955159664154053},{"id":"https://openalex.org/C2780586882","wikidata":"https://www.wikidata.org/wiki/Q7520643","display_name":"Simple (philosophy)","level":2,"score":0.5871801972389221},{"id":"https://openalex.org/C199360897","wikidata":"https://www.wikidata.org/wiki/Q9143","display_name":"Programming language","level":1,"score":0.5602442026138306},{"id":"https://openalex.org/C80444323","wikidata":"https://www.wikidata.org/wiki/Q2878974","display_name":"Theoretical computer science","level":1,"score":0.39982789754867554},{"id":"https://openalex.org/C111472728","wikidata":"https://www.wikidata.org/wiki/Q9471","display_name":"Epistemology","level":1,"score":0.10974675416946411},{"id":"https://openalex.org/C86803240","wikidata":"https://www.wikidata.org/wiki/Q420","display_name":"Biology","level":0,"score":0.0},{"id":"https://openalex.org/C138885662","wikidata":"https://www.wikidata.org/wiki/Q5891","display_name":"Philosophy","level":0,"score":0.0},{"id":"https://openalex.org/C18903297","wikidata":"https://www.wikidata.org/wiki/Q7150","display_name":"Ecology","level":1,"score":0.0}],"mesh":[],"locations_count":2,"locations":[{"id":"doi:10.1145/2535838.2535856","is_oa":false,"landing_page_url":"https://doi.org/10.1145/2535838.2535856","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Proceedings of the 41st ACM SIGPLAN-SIGACT Symposium on Principles of Programming Languages","raw_type":"proceedings-article"},{"id":"pmh:oai:repository.brynmawr.edu:compsci_pubs-1006","is_oa":false,"landing_page_url":"https://repository.brynmawr.edu/compsci_pubs/7","pdf_url":null,"source":{"id":"https://openalex.org/S4377196462","display_name":"Scholarship, Research, and Creative Work at Bryn Mawr College (Bryn Mawr College)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I102373834","host_organization_name":"Bryn Mawr College","host_organization_lineage":["https://openalex.org/I102373834"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"Computer Science Faculty Research and Scholarship","raw_type":"text"}],"best_oa_location":null,"sustainable_development_goals":[{"id":"https://metadata.un.org/sdg/9","display_name":"Industry, innovation and infrastructure","score":0.6200000047683716}],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":28,"referenced_works":["https://openalex.org/W1560253649","https://openalex.org/W1575675278","https://openalex.org/W1594279870","https://openalex.org/W1619105309","https://openalex.org/W1968424997","https://openalex.org/W1973576343","https://openalex.org/W1979101142","https://openalex.org/W1982230416","https://openalex.org/W1995675054","https://openalex.org/W1999346653","https://openalex.org/W2009179353","https://openalex.org/W2015617966","https://openalex.org/W2029422023","https://openalex.org/W2058162377","https://openalex.org/W2107214848","https://openalex.org/W2112474400","https://openalex.org/W2116616150","https://openalex.org/W2125690388","https://openalex.org/W2126018011","https://openalex.org/W2132254891","https://openalex.org/W2150895128","https://openalex.org/W2157266926","https://openalex.org/W2163552400","https://openalex.org/W2323378191","https://openalex.org/W4213090963","https://openalex.org/W4213422035","https://openalex.org/W6643509614","https://openalex.org/W6678546657"],"related_works":["https://openalex.org/W1601811574","https://openalex.org/W1488885199","https://openalex.org/W2017112188","https://openalex.org/W3123526213","https://openalex.org/W2129777450","https://openalex.org/W1587224678","https://openalex.org/W2187307536","https://openalex.org/W1619105309","https://openalex.org/W4231010649","https://openalex.org/W4251000889"],"abstract_inverted_index":{"Open,":[0],"type-level":[1],"functions":[2,42],"are":[3],"a":[4,25,77],"recent":[5],"innovation":[6],"in":[7,72],"Haskell":[8,11],"that":[9],"move":[10],"towards":[12],"the":[13,20],"expressiveness":[14,35],"of":[15,24],"dependent":[16,69],"types,":[17],"while":[18],"retaining":[19],"look":[21],"and":[22,47,60,75],"feel":[23],"practical":[26],"programming":[27],"language.":[28],"This":[29],"paper":[30],"shows":[31],"how":[32],"to":[33,62],"increase":[34],"still":[36],"further,":[37],"by":[38],"adding":[39],"closed":[40],"type":[41,55,70],"whose":[43],"equations":[44],"may":[45,48],"overlap,":[46],"have":[49,76],"non-linear":[50],"patterns":[51],"over":[52],"an":[53],"open":[54],"universe.":[56],"Although":[57],"practically":[58],"useful":[59],"simple":[61],"implement,":[63],"these":[64],"features":[65],"go":[66],"beyond":[67],"conventional":[68],"theory":[71],"some":[73],"respects,":[74],"subtle":[78],"metatheory.":[79]},"counts_by_year":[{"year":2022,"cited_by_count":3},{"year":2021,"cited_by_count":6},{"year":2020,"cited_by_count":4},{"year":2019,"cited_by_count":11},{"year":2018,"cited_by_count":6},{"year":2017,"cited_by_count":10},{"year":2016,"cited_by_count":9},{"year":2015,"cited_by_count":18},{"year":2014,"cited_by_count":13},{"year":2012,"cited_by_count":1}],"updated_date":"2026-07-14T23:27:15.235271","created_date":"2025-10-10T00:00:00"}