On 21 Mrz., 14:02, William Hughes <wpihug...@gmail.com> wrote:
> > But you think that after all finite and unnecessary lines another one > > is lurking like a dragon? > > Now I think that after any finite set of unnecessary lines has > been removed, there still remains an unnecessary line.-
I know. That's what I wished to prove. In order to believe in the existence of actually infinite sets, it is necessary to have another element after all ordinary elements have been removed. The set is more than its elements, namely at least one element more. The actually infinite set of finite natural numbers remains after all finite numbers have been removed, since it contains an infinite number. But that is unmathematical.