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Rough relation properties

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Rough Set Theory (RST) is a mathematical formalism for representing uncertainty that can be considered an extension of the classical set theory. It has been used in many different research areas, including those related to inductive machine learning and reduction of knowledge in knowledge-based systems. One important concept related to RST is that of a rough relation. This paper rewrites some properties of rough relations found in the literature, proving their validity.








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  • Universidade Federal de Sao Carlos, Departamento de Computacao, Sao Carlos-Sao Paulo, Brazil
  • Universidade Federal de Lavras, Departamento de Ciencia da Computacao, Lavras-Minas Gerais, Brazil
  • Universidade Federal de Sao Carlos, Departamento de Matematica, Sao Carlos-Sao Paulo, Brazil


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