dc.contributor.author | Zelent, Denis | |
dc.date.accessioned | 2023-02-28T08:31:58Z | |
dc.date.available | 2023-02-28T08:31:58Z | |
dc.date.created | 2022-11-01T16:55:42Z | |
dc.date.issued | 2022 | |
dc.identifier.issn | 2081-545X | |
dc.identifier.uri | https://hdl.handle.net/11250/3054512 | |
dc.description.abstract | BCK-sequences and n-commutative BCK-algebras were introduced by T. Traczyk, together with two related problems. The first one, whether BCK-sequences are always prolongable. The second one, if the class of all n-commutative BCK-algebras is characterised by one identity. W. A. Dudek proved that the answer to the former question is positive in some special cases, e.g. when BCK-algebra is linearly ordered. T. Traczyk showed that the answer to the latter is affirmative for n = 1, 2. Nonetheless, by providing counterexamples, we proved that the answers to both those open problems are negative. | en_US |
dc.language.iso | eng | en_US |
dc.publisher | Sciendo | en_US |
dc.rights | Navngivelse-Ikkekommersiell-DelPåSammeVilkår 4.0 Internasjonal | * |
dc.rights | Navngivelse-Ikkekommersiell-DelPåSammeVilkår 4.0 Internasjonal | * |
dc.rights | Navngivelse-DelPåSammeVilkår 4.0 Internasjonal | * |
dc.rights.uri | http://creativecommons.org/licenses/by-sa/4.0/deed.no | * |
dc.title | On Traczyk’s BCK-sequences | en_US |
dc.title.alternative | On Traczyk’s BCK-sequences | en_US |
dc.type | Peer reviewed | en_US |
dc.type | Journal article | en_US |
dc.description.version | publishedVersion | en_US |
dc.source.journal | Annales Universitatis Paedagogicae Cracoviensis Studia Mathematica | en_US |
dc.identifier.doi | 10.2478/aupcsm-2022-0004 | |
dc.identifier.cristin | 2067565 | |
cristin.ispublished | true | |
cristin.fulltext | original | |
cristin.qualitycode | 1 | |