The inclusion degree and similarity degree of fuzzy rough sets defined by nanda

In this paper, the properties of the inclusion degree and similarity degree of L-fuzzy sets are presented. On the basis, the inclusion degree and similarity degree of fuzzy rough sets are defined. The generating methods of the inclusion degree and similarity degree of fuzzy rough sets are presented, through the proved properties of the inclusion degree and similarity degree. Finally, the generating problem of the strong inclusion degree and strong similarity degree is discussed further from another hand by the way of constructing some functions.