In this section, we recollect some notations and definitions which are used in this paper.
Let (X, τ) be a topological space and A, a subset of X. The closure of A and
the interior of A are denoted by cl(A) and int(A) respectively in topological
spaces. Let (X, mx) be an m-space where X is a non empty set and mx is the
minimal structure defined on X. The mx-c1 and mx-int denotes the mx-closure
and mx- interior on (X, mx) respectively[2].