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Himpunan Kosong: { } = 1 Himpunan
Himpunan 1 Anggota: {w} {x} {y} {z} = 4
Himpunan 2 Anggota: {w,x} {w,y} {w,z} {x,y} {x,z} {y,z}= 6
Himpunan 3 Anggota: {w,x,y} {w,x,z} {w,y,z} {x,y,z}
Himpunan 4 Angotta: {w,x,y,z}