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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