On 11 Feb., 08:48, Virgil <vir...@ligriv.com> wrote: > In article > <b96a20cb-7991-4a49-84ca-6bd658501...@w7g2000yqo.googlegroups.com>, > WM <mueck...@rz.fh-augsburg.de> wrote: > > >> Every potentially infinite set already exists. > > > But none of them are, or ever can become, infinite.
They cannot "become" actually infinite. > > Since such "sets" are neither finite nor not finite (infinite), they are > nonexistent. > > And in van Dalen, p 118, a letter from Brouwer summarising his thesis: > "I can formulate: > 1. Actual infinite sets can be created mathematically"
As I already mentioned, that is due to an understandable error. At that time mathematicians were drilled to understand by the finite expression "0.111..." an actually infinite sequence of digits. That is wrong.