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Topic: Checking the intelligence of MO-users
Replies: 19   Last Post: Nov 9, 2017 11:30 AM

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Posts: 3,394
Registered: 10/18/08
Re: Checking the intelligence of MO-users
Posted: Nov 9, 2017 11:30 AM
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Am Donnerstag, 9. November 2017 16:45:30 UTC+1 schrieb Zeit Geist:
> All the facts following from proofs.

"Proofs" that violate mathematics, namely:
For all n in |N: f(n) = |{n, n+1, n+2, ...}| > 10 ==> lim f(n) =/= 0.

But even accepting those "proofs", we find that no system satisfying the axioms IV and VII of Zermelo's 1908 paper can be countable.

> It is your sad issue if you can?t understand them.

Luckily myself and many of my students understand that.

> You don?t even know the proper use of universal quantification.

I understand that proper use of universal quantification shows that universal quantification is impossible for infinite sets.

For all n in |N: unversality is not established.

Regards, WM

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