Fri, 11 May 2007 15:37:42 +0200 added fun flip f x y = f y x
krauss [Fri, 11 May 2007 15:37:42 +0200] rev 22935
added fun flip f x y = f y x
Fri, 11 May 2007 03:31:12 +0200 generalize setsum lemmas from semiring_0_cancel to semiring_0
huffman [Fri, 11 May 2007 03:31:12 +0200] rev 22934
generalize setsum lemmas from semiring_0_cancel to semiring_0
Fri, 11 May 2007 01:07:10 +0200 tuned proofs;
wenzelm [Fri, 11 May 2007 01:07:10 +0200] rev 22933
tuned proofs;
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