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On 10/16/2024 1:19 AM, WM wrote:All natural numbers that have been doubled are natural numbers!On 15.10.2024 22:22, Ross Finlayson wrote:BARF!!!!!!!!
>"countable cardinality" is so dirt-obvious>
that it should go without saying,
And it is disproved by aa general truth: When doubling natural numbers we obtain natural numbers which have not been doubled.
In potential infinity we obtain more even natural numbers than have been doubled.
In actual infinity we double ℕ and obtain neither ℕ or a subset of ℕ.
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