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Am 02.12.2024 um 00:19 schrieb Chris M. Thomasson:Indeed. Thanks again!
Infinite[ly many] finite sets: <<< [!]In fact, in axiomatic set theory (due to von Neumann):
>
{ { 1 }, { 1, 2 }, { 1, 2, 3 }, { 1, 2, 3, 4 }, ... }
>
?
IN = {{}, {0}, {0, 1}, {0, 1, 2}, ...}
where 0 = {}, 1 = {0}, 2 = {0, 1}, ... etc. In general: n+1 = {0, ..., n}.
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