{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,11]],"date-time":"2026-04-11T01:33:24Z","timestamp":1775871204433,"version":"3.50.1"},"reference-count":10,"publisher":"Cambridge University Press (CUP)","issue":"4","license":[{"start":{"date-parts":[[2014,3,12]],"date-time":"2014-03-12T00:00:00Z","timestamp":1394582400000},"content-version":"unspecified","delay-in-days":7406,"URL":"https:\/\/www.cambridge.org\/core\/terms"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["J. symb. log."],"published-print":{"date-parts":[[1993,12]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p>It is shown to be consistent that the reals are covered by \u2135<jats:sub>1<\/jats:sub>, meagre sets yet there is a Baire class 1 function which cannot be covered by fewer than \u2135<jats:sub>2<\/jats:sub>, continuous functions. A new cardinal invariant is introduced which corresponds to the least number of continuous functions required to cover a given function. This is characterized combinatorially. A forcing notion similar to, but not equivalent to, superperfect forcing is introduced.<\/jats:p>","DOI":"10.2307\/2275142","type":"journal-article","created":{"date-parts":[[2006,5,6]],"date-time":"2006-05-06T22:50:13Z","timestamp":1146955813000},"page":"1268-1283","source":"Crossref","is-referenced-by-count":8,"title":["A very discontinuous Borel function"],"prefix":"10.1017","volume":"58","author":[{"given":"Juris","family":"Stepr\u0101ns","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"56","published-online":{"date-parts":[[2014,3,12]]},"reference":[{"key":"S0022481200020582_ref010","unstructured":"Velickovic B. , OCA and automorphisms of P(\u03c9)\/fin, preprint, 1990."},{"key":"S0022481200020582_ref005","volume-title":"General topology","author":"Engelking","year":"1977"},{"key":"S0022481200020582_ref008","doi-asserted-by":"publisher","DOI":"10.1007\/978-3-662-21543-2"},{"key":"S0022481200020582_ref004","first-page":"1273","volume":"56","author":"Cicho\u0144","year":"1991","journal-title":"Decomposing baire functions"},{"key":"S0022481200020582_ref007","doi-asserted-by":"publisher","DOI":"10.1090\/conm\/031\/763899"},{"key":"S0022481200020582_ref002","first-page":"1","volume-title":"Surveys in set theory","volume":"87","author":"Baumgartner","year":"1983"},{"key":"S0022481200020582_ref006","doi-asserted-by":"publisher","DOI":"10.1007\/BF02392416"},{"key":"S0022481200020582_ref009","first-page":"295","volume-title":"Remarks on chain conditions in products","volume":"55","author":"Todor\u010devi\u0107","year":"1985"},{"key":"S0022481200020582_ref003","doi-asserted-by":"publisher","DOI":"10.1007\/BFb0097329"},{"key":"S0022481200020582_ref001","doi-asserted-by":"publisher","DOI":"10.1016\/0168-0072(84)90024-1"}],"container-title":["Journal of Symbolic Logic"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.cambridge.org\/core\/services\/aop-cambridge-core\/content\/view\/S0022481200020582","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2019,5,15]],"date-time":"2019-05-15T21:04:02Z","timestamp":1557954242000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.cambridge.org\/core\/product\/identifier\/S0022481200020582\/type\/journal_article"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[1993,12]]},"references-count":10,"journal-issue":{"issue":"4","published-print":{"date-parts":[[1993,12]]}},"alternative-id":["S0022481200020582"],"URL":"https:\/\/doi.org\/10.2307\/2275142","relation":{},"ISSN":["0022-4812","1943-5886"],"issn-type":[{"value":"0022-4812","type":"print"},{"value":"1943-5886","type":"electronic"}],"subject":[],"published":{"date-parts":[[1993,12]]}}}