(* An interesting lemma for auto but too strong to keep compatibility *)

(* Specifications: *)
Lemma absurd_eq_bool : forall b b':bool, False -> b = b'.
(* A more specific one that preserves compatibility with old hint bool_3 *)
Lemma absurd_eq_true : forall b, False -> b = true.
#[global]
Hint Resolve absurd_eq_true : core.