add proof of MacLane_ex_VII_1_1
authorAdam Megacz <megacz@cs.berkeley.edu>
Mon, 4 Apr 2011 23:51:53 +0000 (23:51 +0000)
committerAdam Megacz <megacz@cs.berkeley.edu>
Tue, 5 Apr 2011 02:06:10 +0000 (02:06 +0000)

No differences found