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Le 22/06/2024 à 19:34, Jim Burns a écrit :The set of integers is empty? Say it ain't so!On 6/22/2024 8:11 AM, WM wrote:>>if existing [nonempty], must have a smallest element - according to Cantor.Yes.
But it has not.
Therefore there is no necessary FISON.
No FISON is necessary ⇔
Each FISON is unnecessary ⇐
For each FISON, a proper.superset.FISON exists.
The set has no first element. ==> The set is empty.
If ℕ is union of FISONs, then ℕ is empty.
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