On Tue, 19 Mar 2013 02:13:28 -0700, William Elliot <email@example.com> wrote:
>On Mon, 18 Mar 2013, David Hartley wrote: >> <firstname.lastname@example.org> writes > >> > Perhaps you could illustrate with the five different one to four point >> > point compactifications of two open end line segements. >> >> (There are seven.) >> >Five without homeomorphisms.
When you make an assertion like this and someone disputes it you should make sure you can prove it before insisiting you were right.
There are seven. Homeomorphic to
Two separated segments One segment and one circle, separated Two separated circles One segment One circle A circle with a tail Two circles, joined at one point.