http://mathforum.org/kb List of forum topics en http://mathforum.org/kb/thread.jspa?messageID=8472828&tstart=0#8472828 > On Feb 28, 10:27 pm, William Elliot <ma...@panix.com>]]> Mar 2, 2013 4:01:18 AM Mar 2, 2013 4:01:18 AM marsh@panix.com 0 http://mathforum.org/kb/thread.jspa?messageID=8450423&tstart=0#8450423 > Let M be a subset of a normal space S. Define S_M as]]> Mar 1, 2013 2:41:26 AM Mar 1, 2013 2:41:26 AM fred.galvin@gmail.com 1 http://mathforum.org/kb/thread.jspa?messageID=8447852&tstart=0#8447852 base { U, {x} | U open within S, x in M } (Michael construction).

If in]]> Feb 28, 2013 11:27:13 PM Feb 28, 2013 11:27:13 PM marsh@panix.com 2