diff options
Diffstat (limited to 'theories')
| -rw-r--r-- | theories/Lists/List.v | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/theories/Lists/List.v b/theories/Lists/List.v index 4fe83e9804..79d5a95b03 100644 --- a/theories/Lists/List.v +++ b/theories/Lists/List.v @@ -517,7 +517,7 @@ Section Elts. (** ** Counting occurences of a element *) (****************************************) - Axiom eqA_dec : forall x y : A, {x = y}+{x <> y}. + Hypotheses eqA_dec : forall x y : A, {x = y}+{x <> y}. Fixpoint count_occ (l : list A) (x : A){struct l} : nat := match l with @@ -961,6 +961,8 @@ Section ListOps. (** ** Decidable equality on lists *) (***********************************) + Hypotheses eqA_dec : forall (x y : A), {x = y}+{x <> y}. + Lemma list_eq_dec : forall l l':list A, {l = l'} + {l <> l'}. Proof. |