Thu, 31 May 2018 10:59:54 +0200 blanchet merge
Thu, 31 May 2018 10:59:36 +0200 blanchet more conservative output, avoiding nonstandard feature of E
Wed, 30 May 2018 23:11:28 +0100 paulson merged
Wed, 30 May 2018 23:11:12 +0100 paulson winding numbers predicate
Wed, 30 May 2018 13:44:53 +0200 nipkow unused
Tue, 29 May 2018 22:29:32 +0200 wenzelm merged
Tue, 29 May 2018 22:25:59 +0200 wenzelm more node status information;
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