Algebraic Structures of Rough Sets in Re
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Zbigniew Bonikowski
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Article
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2003
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Elsevier Science
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English
β 789 KB
In this paper a generalized notion of an approximation space is considered. By an approximation space we mean an ordered pair \((U, \mathbb{C})\), where \(U\) is a finite nonempty set and \(\mathbb{C}\) is a covering of \(U\). According to connections between rough sets and concepts we define two ty