tuliskan seluruh himpunan bagian dari P=11,12,13,14,15

{ }, {11}, {12}, {13}, {14}, {15}, {11,12}, {11,13}, {11,14}, {11,15}, {12,13}, {12,14}, {12,15}, {13,14}, {13,15}, {14,15}, {11,12,13}, {11,12,14}, {11,12,15}, {12,13,14}, {12,13,15}, {13,14,15}, {13,15,11}, {11,13,14}, {11,14,15}, {12,14,15}, {11,12,13,14}, {11,12,13,15},  {12,13,14,15}, {13,14,15,11}, {14,15,11,12}, {11,12,13,14,15}

TOTAL KESELURUHAN :
Banyak anggota 0 = 1
Banyak anggota 1 = 5
Banyak anggota 2 = 10
Banyak anggota 3 = 10
Banyak anggota 4 = 5
Banyak anggota 5 = 1