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Rough implication operator based on strong topological rough algebras

Information SciencesPublished 12 June 2010
Xiaohong Zhang, Yiyu Yao, Hong Yu
Citations31
SJR quartileQ1
SJR score1.80
SNIP1.98

TL;DR

The rough implication operator is introduced in strong topological rough algebra that is a generalization of classical rough algebra and a topological De Morgan algebra, and a new semantic interpretation of Lukasiewicz continuous-valued logic system Luk is constructed based on rough implication.

Abstract

The role of topological De Morgan algebra in the theory of rough sets is investigated. The rough implication operator is introduced in strong topological rough algebra that is a generalization of classical rough algebra and a topological De Morgan algebra. Several related issues are discussed. First, the two application directions of topological De Morgan algebras in rough set theory are described, a uniform algebraic depiction of various rough set models are given. Secondly, based on interior and closure operators of a strong topological rough algebra, an implication operator (called rough implication) is introduced, and its important properties are proved. Thirdly, a rough set interpretation of classical logic is analyzed, and a new semantic interpretation of Lukasiewicz continuous-valued logic system Luk is constructed based on rough implication. Finally, strong topological rough implication algebra (STRI-algebra for short) is introduced. The connections among STRI-algebras, regular double Stone algebras and RSL-algebras are established, and the completeness theorem of rough logic system RSL is discussed based on STRI-algebras.

Keywords

Computer Science