Abstract
In this paper we exhibit a non-finitely based, finitely generated quasi-variety of De Morgan algebras and determine the bottom of the lattices of sub-quasi-varieties of Kleene and De Morgan algebras.
Similar content being viewed by others
References
Adams, M. E., and W. Dziobiak, ‘Lattices of quasivarieties of 3-element algebras’, J. of Algebra 166:181–210, 1994.
Burris, S., and H. P. Sankappanavar, A Course in Universal Algebra, Springer-Verlag, 1981.
Cornish, W., and P. R. Fowler, ‘Coproducts of Kleene algebras’, J. Austral. Math. Soc. (Series A) 27:209–220, 1979.
Dziobiak, W., ‘Finitely generated congruence distributive quasivarieties of algebras’, Fund. Math. 133:47–57, 1989.
Dziobiak, W., ‘Finite bases for finitely generated, relatively congruence distributive quasi-varieties’, Algebra Universalis 28:303–323, 1991.
Gaitán, H., ‘Quasivarieties of De Morgan algebras: RCEP’, Revista Colombiana de Matemáticas 27:203–208, 1993.
Kalman, J. A., ‘Lattices with involution’, Trans. Amer. Math. Soc. 87: 485–491, 1958.
Pynko, A. P., ‘Implicational classes of De Morgan lattices’, Discrete Math. 205:171–181, 1999.
Sankappanavar, H. P., ‘A characterization of principal congruences of de Morgan algebras and its applications’, in A. I. Arruda, R. Chuaqui and N.C.A. da Costa, (eds.), Mathematical Logic in Latin America, North-Holland, Amsterdam, 1980, pp. 341–349
Author information
Authors and Affiliations
Additional information
Supported by Vicerrectoría Académica de la Facultad de Ciencias and by División de Investigación, Sede Bogotá of the Universidad Nacional de Colombia.
Special issue of Studia Logica: “Algebraic Theory of Quasivarieties” Presented by M. E. Adams, K. V. Adaricheva, W. Dziobiak, and A. V. Kravchenko
Rights and permissions
About this article
Cite this article
Gaitán, H., Perea, M.H. A non-finitely based quasi-variety of De Morgan algebras. Stud Logica 78, 237–248 (2004). https://doi.org/10.1007/s11225-005-7248-6
Received:
Accepted:
Issue Date:
DOI: https://doi.org/10.1007/s11225-005-7248-6