FSS
2008
14 years 26 days ago
2008
In this paper, we introduce triangle algebras: a variety of residuated lattices equipped with approximation operators, and with a third angular point u, different from 0
RSCTC
1998
Springer
14 years 5 months ago
1998
Springer
This paper reviews and discusses generalizations of Pawlak rough set approximation operators in mathematical systems, such as topological spaces, closure systems, lattices, and pos...