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-rw-r--r--theories/Wellfounded/Lexicographic_Exponentiation.v4
1 files changed, 2 insertions, 2 deletions
diff --git a/theories/Wellfounded/Lexicographic_Exponentiation.v b/theories/Wellfounded/Lexicographic_Exponentiation.v
index dd9e4c98..992263cb 100644
--- a/theories/Wellfounded/Lexicographic_Exponentiation.v
+++ b/theories/Wellfounded/Lexicographic_Exponentiation.v
@@ -1,6 +1,6 @@
(************************************************************************)
(* v * The Coq Proof Assistant / The Coq Development Team *)
-(* <O___,, * INRIA - CNRS - LIX - LRI - PPS - Copyright 1999-2015 *)
+(* <O___,, * INRIA - CNRS - LIX - LRI - PPS - Copyright 1999-2016 *)
(* \VV/ **************************************************************)
(* // * This file is distributed under the terms of the *)
(* * GNU Lesser General Public License Version 2.1 *)
@@ -95,7 +95,7 @@ Section Wf_Lexicographic_Exponentiation.
intros.
- inversion H.
assert ([b; a] = ([] ++ [b]) ++ [a]) by auto with sets.
- destruct (app_inj_tail (l ++ [y]) ([] ++ [b]) _ _ H0) as ((?, <-)/app_inj_tail, <-).
+ destruct (app_inj_tail (l ++ [y]) ([] ++ [b]) _ _ H0) as ((?, <-)%app_inj_tail, <-).
inversion H1; subst; [ apply rt_step; assumption | apply rt_refl ].
- inversion H0.
+ apply app_cons_not_nil in H3 as ().