An empty relation on set A is a subset of the cartesian product A×A.
Given a non empty set X, consider P(X) which is the set of all subsets of X.
Define the relation R in P(X) as follows:
For subsets A, B in P(X), ARB if and only if A ⊂ B. Is R an equivalence relation on P(X)? Justify you answer:
Empty relation on a set A is the subset of Cartesian product A × A