Sujet : Re: How many different unit fractions are lessorequal than all unit fractions?
De : wolfgang.mueckenheim (at) *nospam* tha.de (WM)
Groupes : sci.mathDate : 24. Sep 2024, 20:43:16
Autres entêtes
Organisation : A noiseless patient Spider
Message-ID : <vcv4om$3a5lv$11@dont-email.me>
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User-Agent : Mozilla Thunderbird
On 24.09.2024 18:49, Jim Burns wrote:
WM's argument goes something like this:
🛇⎛ The set of unit.fractions exists.
🛇⎜ No _identifiable_ unit.fraction is its second end.
🛇⎜ (axiom) All sets have two ends.
Not an axiom but the fact that below zero there is no unit fraction proves the lower end.
🛇⎜ The second end of the unit.fractions exists
🛇⎝ but it is _not identifiable_
There is plenty to correct in that,
but I think WM's cornerstone.error is
how he thinks axioms work.
I think that mathematics of fractions is correct.
It contains ∀n ∈ ℕ: 1/n - 1/(n+1) > 0 from which follows that never two different5 fractions sit upon each other. From NUF(0) = 0 the smallest unit fraction follows immeditely, From it the largest natural number.
Regards WM