Comment: From http://en.wikipedia.org/wiki/Powerset_construction Start: {123} Accept: {123} {24} {23} {4} Edges: {123} 0 {24} {123} 1 {24} {24} 0 {23} {24} 1 {24} {23} 0 {4} {23} 1 {24} {4} 0 {23} {4} 1 {} {} 0 {} {} 1 {} End: