Wed, 12 Oct 2011 17:50:00 -0700 Kevin Walker a little more on operad action
Wed, 12 Oct 2011 15:10:54 -0700 Kevin Walker operad action only up to homotopy; still need to think about this a bit
Sat, 08 Oct 2011 17:35:05 -0700 Kevin Walker marked balls start at k=1, not k=0
(0) -300 -100 -30 -10 -3 +3 +10 +30 tip