Wed, 23 Sep 2015 14:11:35 +0100 paulson Useful facts about min/max, etc.
Wed, 23 Sep 2015 11:52:15 +0100 paulson Merge
Wed, 23 Sep 2015 11:36:07 +0100 paulson fixed a VERY SLOW proof
Tue, 22 Sep 2015 16:55:49 +0100 paulson SOME rather than THE makes it easy to prove equivalence with other forms of derivatives
Tue, 22 Sep 2015 16:55:07 +0100 paulson New lemmas
Tue, 22 Sep 2015 16:53:59 +0100 paulson Prepared two non-terminating proofs; no obvious link with my changes
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