D., Deepak; John, Sunil Jacob - In: International Journal of Rough Sets and Data Analysis … 3 (2016) 1, pp. 71-97
power set of membership values from the usual information system. Although it does not mean that it is arrived at from usual … information systems the reduct and core of one information system are the corresponding images of the reduct and core of the other … information system under this homomorphism. …