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On 2025-06-23 10:59:08 +0000, WM said:
Then it is impossible to remove all of them in their order. But if it is possible to remove them completely, that cannot be done in their order. It can be done however in their order up to every definable number.The natural numbers are well-ordered, from the first to the last which is subtracted. Does this change if all can be subtracted?There is no last natural number. Every subset of natural numbers
has a first member (in the arithmetic order) but infinite subsets
don't have a last one.
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