add a notation for composition of isomorphisms
authorAdam Megacz <megacz@cs.berkeley.edu>
Sat, 9 Apr 2011 03:18:59 +0000 (03:18 +0000)
committerAdam Megacz <megacz@cs.berkeley.edu>
Sat, 9 Apr 2011 03:50:23 +0000 (03:50 +0000)

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