On 22 Dez., 15:47, "Dik T. Winter" <Dik.Win...@cwi.nl> wrote: > In article <b484e377-9dc2-424b-80c3-2912165f6...@a32g2000yqm.googlegroups.com> WM <mueck...@rz.fh-augsburg.de> writes: > > On 21 Dez., 14:23, "Dik T. Winter" <Dik.Win...@cwi.nl> wrote: > ... > > > > That you cannot get step by step to 1/0 does not mean that it does not > > > > exist? > > > > > > Indeed. On the projective line (that precedes Cantor by quite some time > > > as far as I know) it does exist. > > > > But does the projective line exist? > > Exist in what sense? But it is a concept from projective geometry, but > perhaps you think that is also nonsense? I may note that the point at > infinity was developed by Kepler and Desargues in the 17th century.
Nevertheless it has been used already by Pietro Perugino in a Fresco at the Sistine Chapel, in 1482. >
> > > I studied mathematics and a university council > > appointed me to teach mathematical lessons. > > Well, the same did hold for my father,
He taught math over 20 years at universities and wrote a book or two on math?
> but he never considered himself > a mathematician, but a physicist. >
You may note that I deny to be a matheologian, i.e. a member or element of the set of those who consider infinity to be finished and uncomputable numbers being computable, i.e., being numbers.