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{a,b,c} => banyak anggota : 3; himpunan - himpunan bagian : { }, {a}, {b}, {c}, {a,b}, {a,c}, {b,c}, {a,b,c}; banyak himpunan bagian : 8 = 2^3
{a,b,c,d} => banyak anggota : 4; himpunan - himpunan bagian : { }, {a}, {b}, {c}, {d}, {a,b}, {a,c}, {a,d}, {b,c}, {b,d}, {c,d}, {a,b,c}, {a,b,d}, {a,c,d}, {b,c,d}, {a,b,c,d}; banyak himpunan bagian : 16 = 2^4
{a,b,c,d,...} => banyak anggota : n ; himpunan - himpunan bagian {a}, {b}, {c}, {d}, {e}, {f}, ... (sesuai banyak anggota n) ; banyak himpunan bagian : n^2