“…Then (i) (A, B) (C, D) if A C and B D. (ii) (A, B) (C, D) =(A C, B D). (iii) (A, B) (C, D) =(A C, B D).Definition 2.4[2]: Let (X, Y, µb) be a binary generalized topological space and (x, y) X Y, then a subset (A, B) of (X, Y) is called a binary generalized neighbourhood of (x, y) if there exists a binary generalized open set (U, V) such that (x, y) (U, V) (A, B).Definition 2.5[2]: Let (X, Y, µb) be a binary generalized topological space and A X, B Y. Let (A, B) 1* = {Aα :(Aα, Bα)is binary generalized closed and (A, B) (Aα, Bα)} and (A, B) 2* = {Bα :(Aα, Bα)is binary generalized closed and (A, B) (Aα, Bα)}.…”