Comparison between different kinds of approximations by using a family
of binary relations

Faculty	Science	Year:	2008
Type of Publication:	ZU Hosted	Pages:	911-919
Authors:	Hassan Mostafa Metwally Staff Zu Site Abstract In Staff Site
Journal:	Knowledge-Based systems ELSEVIER	Volume:

Keywords :	Comparison between different kinds , approximations , using
Abstract:	In this paper, we discuss three types of lower and upper approximations of any set with respect to any relation based on right neighborhood. We generalize these three types of approximations into two ways by using a finite number of any b

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