-- -*- M2-comint -*- {* hash: -557409341 *} i1 : subsets {1,2,3} o1 = {{}, {1}, {2}, {1, 2}, {3}, {1, 3}, {2, 3}, {1, 2, 3}} o1 : List i2 :
-- -*- M2-comint -*- {* hash: -557409341 *} i1 : subsets {1,2,3} o1 = {{}, {1}, {2}, {1, 2}, {3}, {1, 3}, {2, 3}, {1, 2, 3}} o1 : List i2 :