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On 02.02.2025 13:27, Richard Damon wrote:Since I don't recall you actually DEFINING what A(n) means, any assumption about it would be unwarranted.On 2/2/25 6:34 AM, WM wrote:On 02.02.2025 01:33, Richard Damon wrote:On 2/1/25 1:17 PM, WM wrote:>>The set of FISONs assumed to satisfy U(A(n)) = ℕ cannot be empty. But we can prove by induction that every FISON can be discarded without changing the union. That disproves the assumption.And that is your problem, you make assumptions that are unwarented,
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I think you've got it! Yes, U(A(n)) is not ℕ.But N is in the union of any inifinite set of FISONs.Then the assumption U(A(n)) = ℕ would not be unwarranted.
Nope, just any.>But all can be dropped without changing the union.
What isn't, is your A(n), as none of the FISONs are individually needed.
Regards, WM
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