In article <0a81cf8d-05c0-4212-a608-5c9d01dd9a3c@v8g2000pro.googlegroups.com>, Jim Greenfield <jgreenfield97@gmail.com> wrote:
> On Oct 6, 1:35 pm, Frisbieinstein <patmpow...@gmail.com> wrote: > > On Oct 5, 5:27 pm, Alen <al...@westserv.net.au> wrote: > > > > > The purpose of this post is to try to understand what > > > might be meant by the concept of 'infinity'. > > > > finis = end > > in- = not, as in infidelity, inadmissable, insane, etc. > > -ity = a condition > > > > so infinity is the condition of being without end. > > > > It is impossible for a finite being to observe an infinity. Such can > > only be inferred. > > Tick 10/10 > Jim G > c'=c+v 1/0=oo
The most common definition of infiniteness that applies in set theory is that a set is infinite if and only if there is an injection from the set to a proper subset of the set. --