It is shown that in a linearly ordered MV-algebra A, the implication is unique if and only if the identity function is the unique De Morgan automorphism on A. Modulo categorical equivalence, our uniqueness criterion recalls Ohkuma's rigidness condition for totally ordered abelian groups. We also show that, if A is an Archimedean totally ordered MV-algebra, then each non-trivial De Morgan automorphism of the underlying involutive lattice of A yields a new implication on A, which is not isomorphic to the original implication. © 2001 Elsevier Science B.V.
Documento: | Artículo |
Título: | Uniqueness of the implication for totally ordered MV-algebras |
Autor: | Martínez, N.G.; Petrovich, A. |
Filiación: | Departamento de Matematica, Facultad de Ciencias Exactas, Universidad de Buenos Aires, 1428 Buenos Aires, Argentina |
Palabras clave: | 03G25; 06D05; 06E15; De Morgan algebras; MV-algebras; Priestley's duality; Rigidness |
Año: | 2001 |
Volumen: | 108 |
Número: | 1-3 |
Página de inicio: | 261 |
Página de fin: | 268 |
DOI: | http://dx.doi.org/10.1016/S0168-0072(00)00050-6 |
Título revista: | Annals of Pure and Applied Logic |
Título revista abreviado: | Ann. Pure Appl. Logic |
ISSN: | 01680072 |
CODEN: | APALD |
Registro: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_01680072_v108_n1-3_p261_Martinez |