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Le 22/08/2024 à 13:17, Crank Wolfgang Mückenheim a écrit :That is true for collections in potential infinity. It has nothing to do with the present topic.
...There is no set ℕᵈᵉᶠ because of lacking completeness. Sets of set theory are complete.We know, in mückenmath sets are so complete that you can remove one
of their members without changing them. Like in e \in S and S \ {e} = S
as you claimed numerous times.
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