Skip to main content
3 events
when toggle format what by license comment
Jan 3, 2011 at 2:31 comment added Robert Haraway Your Euclidean proof should work for the Klein/Beltrami disk model, right?
Dec 29, 2009 at 13:06 history edited Shinpei CC BY-SA 2.5
deleted 38 characters in body
Dec 29, 2009 at 12:50 history asked Shinpei CC BY-SA 2.5