Affiliations: [a] College of Applied Mathematics, Chengdu University of Information Technology, Chengdu, Sichuan, People’s Republic of China | [b] School of Mathematical Sciences, Sichuan Normal University Chengdu, Sichuan, People’s Republic of China
Correspondence:
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Corresponding author. Xue-ping Wang, School of Mathematical Sciences, Sichuan Normal University, Chengdu, Sichuan 610066, People’s Republic of China. E-mail: xpwang1@hotmail.com.
Abstract: This paper deals with L-fuzzy up-sets by using terminologies of closure operators. It first gives a condition that a family of some subsets of a nonempty set can be represented by L-fuzzy up-sets, and it finally discusses the L-fuzzy sets on quotient sets under closure operators.
