| Sun, 08 May 2011 09:05:53 -0700 | Kevin Walker | make sure poset of decomps is a small category; added to to-do list | file | diff | annotate |
| Sat, 07 May 2011 09:18:37 -0700 | Kevin Walker | added remark about defect categories; tweaked sphere cat intro | file | diff | annotate |
| Fri, 06 May 2011 17:46:07 -0700 | Kevin Walker | acknowledge the existence of manifolds without ball decompositions | file | diff | annotate |
| Fri, 06 May 2011 16:54:18 -0700 | Scott Morrison | correcting typo | file | diff | annotate |