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Le 10/05/2024 à 17:00, FromTheRafters a écrit :Huh? ℕ is infinite in and of itself.WM explained :Try to remove all natural numbers individually from ℕ. Fail.Yes. But every n ∈ ℕ_def has ℵ₀ successors which never vanish by counting. They can be removed only collectively such that nothing of ℕ remains.>
Wrong,
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