(* begin hide *)
(* Compatibility *)
Notation absoption_andb := absorption_andb (only parsing).Notation absoption_orb := absorption_orb (only parsing).

Lemma implb_orb_distrib_l : forall b1 b2 b3:bool, implb (b1 || b2) b3 = implb b1 b3 && implb b2 b3.