Displaying similar documents to “Topological Interpretation of Rough Sets”

Three-space-problem for some classes of linear topological spaces

Zoran Kadelburg, Stojan Radenović (1996)

Commentationes Mathematicae Universitatis Carolinae

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We examine the so-called three-space-stability for some classes of linear topological and locally convex spaces for which this problem has not been investigated.

Relational Formal Characterization of Rough Sets

Adam Grabowski (2013)

Formalized Mathematics

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The notion of a rough set, developed by Pawlak [10], is an important tool to describe situation of incomplete or partially unknown information. In this article, which is essentially the continuation of [6], we try to give the characterization of approximation operators in terms of ordinary properties of underlying relations (some of them, as serial and mediate relations, were not available in the Mizar Mathematical Library). Here we drop the classical equivalence- and tolerance-based...