Improvement of Definitions of Rough Function and Proof of Rough Derivative′s Properties in Rough Set Theory
Zhuo Ze · Journal of Huaibei Industry Teachers College · 2002
In this paper,the definitions of concept of binary rough function and n-element rough function and k-rank rough derivatives are improved.The properties of one-element rough derivatives and binary rough derivatives are given out.In particular,we give the more detailed proofs of rough derivatives.