Revisions - MathOverflow

MathOverflow will be down for maintenance for approximately 3 hours, starting Monday evening (06/24/2013) at approximately 9:00 PM Eastern time (UTC-4).

Return to Answer

show/hide this revision's text

1

[made Community Wiki]

view source

answered Nov 4 2010 at 0:10

Neil Strickland
14.1k●1●29●68

There are not exactly five objects by Andreas Blass