Tentukan semua himpunan bagian dari Y ={bilangan prima lebih dari 6 dan kurang dari 25 } yang memiliki
a. Dua anggota
Penyelesaian
Y = 7, 11, 13, 17, 19, 23
Dua Anggota = {7, 11}, {7, 13}, {7, 17}, {7, 19}, {7, 23}, {11, 13}, {11, 17}, {11, 19}, {11, 23}, {13, 17}, {13, 19}, {13, 23}, {17, 19}, {17, 23}, {19, 23}.
b. Tiga anggota
Penyelesaian
Y = 7, 11, 13, 17, 19, 23
Tiga Anggota = {7, 11, 13}, {7, 11, 17}, {7, 11, 19}, {7, 11, 23}, {7, 13, 17}, {7, 13, 19}, {7, 13, 23}, {7, 17, 19}, {7, 17, 23}, {7, 19, 23}, {11, 13, 17}, {11, 13, 19}, {11, 13, 23}, {11, 17, 19}, {11, 17, 23}, {13, 17, 19}, {13, 17, 23}, {13, 19, 23}, {19, 17, 23}.
c. Empat anggota
Penyelesaian
Y = 7, 11, 13, 17, 19, 23
Empat Anggota = {7, 11, 13, 17}, {7, 11, 13, 19}, {7, 11, 13, 23}, {7, 11, 19, 23}, {7, 13, 17, 19}, {7, 13, 17, 23}, {7, 13, 19, 23}, {7, 17, 19, 23}, {11, 13, 17, 19}, {11, 13, 17, 23}, {11, 13, 19, 23}, {13, 17, 19, 23}.
