diff options
Diffstat (limited to 'theories/Lists/List.v')
| -rw-r--r-- | theories/Lists/List.v | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/theories/Lists/List.v b/theories/Lists/List.v index fe18686e..cc7586fe 100644 --- a/theories/Lists/List.v +++ b/theories/Lists/List.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 *) @@ -970,6 +970,7 @@ Section Map. Lemma in_flat_map : forall (f:A->list B)(l:list A)(y:B), In y (flat_map f l) <-> exists x, In x l /\ In y (f x). Proof using A B. + clear Hfinjective. induction l; simpl; split; intros. contradiction. destruct H as (x,(H,_)); contradiction. |