On 26 Jan., 09:31, Virgil <vir...@ligriv.com> wrote: > In article > <0d063360-6dc5-4990-ba73-0400ce6c1...@w8g2000yqm.googlegroups.com>, > > WM <mueck...@rz.fh-augsburg.de> wrote: > > Matheology 200 > > > We know that the real numbers of set theory are very different from > > the real numbers of analysis, at least most of them, because we cannot > > use them. But it seems, that also the natural numbers of analysis 1, > > 2, 3, ... are different from the cardinal numbers 1, 2, 3, ... > > The natural numbers of analysis are members of the set of real numbers,
Here I know of a difference: The collection of real numbers in analysis is countable and is therefore not the a of set theory.
> but cardinal numbers are not members of the set of real numbers.
Here I don't know of a difference in the finite domain. Can you help? Regards, WM