diff options
Diffstat (limited to 'theories/Lists/PolyList.v')
| -rw-r--r-- | theories/Lists/PolyList.v | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/theories/Lists/PolyList.v b/theories/Lists/PolyList.v index 7eeeb73f0..3e845fb88 100644 --- a/theories/Lists/PolyList.v +++ b/theories/Lists/PolyList.v @@ -549,7 +549,7 @@ Section Functions_on_lists. (* Some generic functions on lists and basic functions of them *) (***************************************************************) -Section Map_def. +Section Map. Variables A,B:Set. Variable f:A->B. Fixpoint map [l:(list A)] : (list B) := @@ -557,7 +557,7 @@ Fixpoint map [l:(list A)] : (list B) := nil => (nil B) | (cons a t) => (cons (f a) (map t)) end. -End Map_def. +End Map. Lemma in_map : (A,B:Set)(f:A->B)(l:(list A))(x:A) (In x l) -> (In (f x) (map f l)). |