powerset

How to get all subsets of a set? (powerset) Question: Given a set {0, 1, 2, 3} How can I produce the subsets: [set(), {0}, {1}, {2}, {3}, {0, 1}, {0, 2}, {0, 3}, {1, 2}, {1, 3}, {2, 3}, {0, 1, 2}, {0, 1, 3}, {0, 2, 3}, {1, 2, 3}, {0, 1, 2, …