From f3870c96a192ff52449db9695b1c160834ff023f Mon Sep 17 00:00:00 2001 From: letouzey Date: Mon, 9 Jul 2012 18:17:58 +0000 Subject: induction/destruct : nicer syntax for generating equations (solves #2741) The ugly syntax "destruct x as [ ]_eqn:H" is replaced by: destruct x eqn:H destruct x as [ ] eqn:H Some with induction. Of course, the pattern behind "as" is arbitrary. For an anonymous version, H could be replaced by ?. The old syntax with "_eqn" still works for the moment, by triggers a warning. For making this new syntax work, we had to change the seldom-used "induction x y z using foo" into "induction x, y, z using foo". Now, only one "using" can be used per command instead of one per comma-separated group earlier, but I doubt this will bother anyone. git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@15566 85f007b7-540e-0410-9357-904b9bb8a0f7 --- theories/MSets/MSetInterface.v | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'theories/MSets/MSetInterface.v') diff --git a/theories/MSets/MSetInterface.v b/theories/MSets/MSetInterface.v index f2b908af0..6778deffa 100644 --- a/theories/MSets/MSetInterface.v +++ b/theories/MSets/MSetInterface.v @@ -480,7 +480,7 @@ Module WRaw2SetsOn (E:DecidableType)(M:WRawSets E) <: WSetsOn E. Proof. intros (s,Hs) (s',Hs'). change ({M.Equal s s'}+{~M.Equal s s'}). - destruct (M.equal s s') as [ ]_eqn:H; [left|right]; + destruct (M.equal s s') eqn:H; [left|right]; rewrite <- M.equal_spec; congruence. Defined. -- cgit v1.2.3