Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
4664853 | Acta Mathematica Scientia | 2008 | 6 Pages |
Abstract
In this article, for any a in the MS-algebra L, the author considers the congruence of the form defined by (x,y)∈θa⇔xΛa∘=yΛa∘ and x∨a∘∘=y∨a∘∘. A characterization of subdirectly irreducible MS-algebras is given and it is also proved that the union of two principal congruences having this form is a principal congruence if and only if L∈K2∨K3.
Related Topics
Physical Sciences and Engineering
Mathematics
Mathematics (General)