{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2023,10,29]],"date-time":"2023-10-29T04:41:06Z","timestamp":1698554466276},"reference-count":1,"publisher":"Wiley","issue":"4","license":[{"start":{"date-parts":[[2010,11,17]],"date-time":"2010-11-17T00:00:00Z","timestamp":1289952000000},"content-version":"vor","delay-in-days":4338,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"funder":[{"name":"Institute for Studies in Theoretical Physics and Mathematics (IPM), Tehran, Iran"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Mathematical Logic Qtrly"],"published-print":{"date-parts":[[1999,1]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p>We define a class of so\u2010called \u2211(<jats:italic>n<\/jats:italic>)\u2010sets as a natural closure of recursively enumerable sets <jats:italic>W<\/jats:italic><jats:sub>n<\/jats:sub> under the relation \u201c\u2208\u201d and study its properties.<\/jats:p>","DOI":"10.1002\/malq.19990450405","type":"journal-article","created":{"date-parts":[[2010,11,17]],"date-time":"2010-11-17T16:31:05Z","timestamp":1290011465000},"page":"467-470","source":"Crossref","is-referenced-by-count":0,"title":["On a Class of Recursively Enumerable Sets"],"prefix":"10.1002","volume":"45","author":[{"given":"Farzad","family":"Didehvar","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2010,11,17]]},"reference":[{"key":"e_1_2_1_2_2","doi-asserted-by":"publisher","DOI":"10.1007\/978-3-662-02460-7"}],"container-title":["Mathematical Logic Quarterly"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/api.wiley.com\/onlinelibrary\/tdm\/v1\/articles\/10.1002%2Fmalq.19990450405","content-type":"unspecified","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/api.wiley.com\/onlinelibrary\/tdm\/v1\/articles\/10.1002%2Fmalq.19990450405","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/pdf\/10.1002\/malq.19990450405","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2023,10,28]],"date-time":"2023-10-28T21:16:59Z","timestamp":1698527819000},"score":1,"resource":{"primary":{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/10.1002\/malq.19990450405"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[1999,1]]},"references-count":1,"journal-issue":{"issue":"4","published-print":{"date-parts":[[1999,1]]}},"alternative-id":["10.1002\/malq.19990450405"],"URL":"https:\/\/doi.org\/10.1002\/malq.19990450405","archive":["Portico"],"relation":{},"ISSN":["0942-5616","1521-3870"],"issn-type":[{"value":"0942-5616","type":"print"},{"value":"1521-3870","type":"electronic"}],"subject":[],"published":{"date-parts":[[1999,1]]}}}