diff options
Diffstat (limited to 'theories/Logic/IndefiniteDescription.v')
| -rw-r--r-- | theories/Logic/IndefiniteDescription.v | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/theories/Logic/IndefiniteDescription.v b/theories/Logic/IndefiniteDescription.v index ce9405f85..3651c1b2f 100644 --- a/theories/Logic/IndefiniteDescription.v +++ b/theories/Logic/IndefiniteDescription.v @@ -19,11 +19,11 @@ Require Import ChoiceFacts. Set Implicit Arguments. Axiom constructive_indefinite_description : - forall (A : Type) (P : A->Prop), + forall (A : Type) (P : A->Prop), (exists x, P x) -> { x : A | P x }. Lemma constructive_definite_description : - forall (A : Type) (P : A->Prop), + forall (A : Type) (P : A->Prop), (exists! x, P x) -> { x : A | P x }. Proof. intros; apply constructive_indefinite_description; firstorder. |