Consider a set X where X = {1, 2, 3, 4, 5}, and T representing a collection of subsets of X where T = {∅, {1, 3, 5}, {2, 4}, X}. Is (X, T) a topological space?
1
Yes, because all subsets in T follow topological rules.
2
No, because individual points of X are not in T
3
No, because the union of {1, 3, 5} and {2, 4} is not in T.
4
Yes, because the intersection of any two subsets in T results in ∅ which is in T.
5
Question Not Attempted