http://mathforum.org/kb List of forum topics en http://mathforum.org/kb/thread.jspa?messageID=8323106&tstart=0#8323106 at 02:17 AM, William Elliot <marsh@panix.com>]]> Feb 14, 2013 10:48:41 AM Feb 14, 2013 10:48:41 AM spamtrap@library.lspace.org.invalid 0 http://mathforum.org/kb/thread.jspa?messageID=8313743&tstart=0#8313743 > Let S be a set with cardinality]]> Feb 13, 2013 1:03:04 PM Feb 13, 2013 1:03:04 PM magidin@math.berkeley.edu 0 http://mathforum.org/kb/thread.jspa?messageID=8312059&tstart=0#8312059 wrote:

>Let S be a set with cardinality]]> Feb 13, 2013 9:07:12 AM Feb 13, 2013 9:07:12 AM ullrich@math.okstate.edu 0 http://mathforum.org/kb/thread.jspa?messageID=8311272&tstart=0#8311272 > Let S be a set with cardinality aleph_nu.
>]]> Feb 13, 2013 6:22:57 AM Feb 13, 2013 6:22:57 AM fred.galvin@gmail.com 0 http://mathforum.org/kb/thread.jspa?messageID=8311079&tstart=0#8311079 Since S is equinumerous with omega_nu, there's
. . a bijection h:S -> omega_nu.

Thus S is]]> Feb 13, 2013 5:17:41 AM Feb 13, 2013 5:17:41 AM marsh@panix.com 4