Sat, 13 Jun 2015 12:30:12 +0100 paulson tidied more proofs
Fri, 12 Jun 2015 21:53:07 +0200 haftmann proper subclass instances for existing gcd (semi)rings
Fri, 12 Jun 2015 21:53:05 +0200 haftmann slight preference for American English
Fri, 12 Jun 2015 21:52:49 +0200 haftmann generalized euclidean ring prerequisites
Fri, 12 Jun 2015 21:52:48 +0200 haftmann simplified relationship between associated and is_unit
Sat, 13 Jun 2015 00:33:14 +0100 paulson proof tidying
Fri, 12 Jun 2015 08:53:23 +0200 haftmann CONTRIBUTORS
Fri, 12 Jun 2015 08:53:23 +0200 haftmann tuned lemmas and proofs
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