Hier jetzt ± 16 Elemente der Potenzmenge
P(P(P(P(0)))) = P({0,{0},{{0}},{0,{0}}) =
{ 0 1
{0}, {{0}}, {{{0}}}, {0,{0}}}, 5
{{0,{0}}}, {0,{{0}}}, {0,{0,{0}} 8
{{0},{{0}} }, {{0},{0,{0}}} 10
{{{0}},{0,{0}}} 11
{0,{0},{{0}}} , {0,{{0}},{0,{0}}}, {0,{0},{0,{0}}}, 14
{{0},{{0}},{0,{0}}} 15
{0,{0},{{0}},{0,{0}}} 16
}