A note on “On generalizing covering approximation space”

http://dx.doi.org/10.1016/j.joems.2017.05.005

Abstract

We show that [Lemma 3.3, p. 538] which was introduced in [1] is incorrect in general, by giving counter examples. Consequently, [Proposition 3.2, p. 539] is also incorrect. Moreover, the correction form of the incorrect results in [1] is presented.