In a discrete space X* the only dense subset of X is X every subset of X is dense in X None of the choices a proper subset of X may be dense in X and may not be

Extracted text: In a discrete space X* the only dense subset of X is X every subset of X is dense in X None of the choices a proper subset of X may be dense in X and may not be


Extracted text: Let X = {a, b, 1, 2, 3} and T = {X, 0, {a}, {1,2}, {a,1,2}, {b,1,2,3}}. Let A = {a, b, 1}, then A' (the set of limit points of A) is * O A' = {a, b} %3D O A' = {b, 2, 3} O A' = {b,1,3} O A' = A