Nathan
Posts:
188
Registered:
12/13/04


Re: How many real numbers are there?
Posted:
Jul 7, 2006 5:26 PM


Toni Lassila wrote: > On 7 Jul 2006 13:30:05 0700, "Nathan" <ntspam2@netscape.net> wrote: > > >Mike Deeth wrote: > > > >> It's wellknown that a countable union of finite sets is countable. > > > >Nope! You said you were working in ZF. This requires AC. > > No it doesn't.
Okay, not the *full* AC, but ZF is not enough.

