fact: Definition pull_sumbool_rect {L R : Prop} {A B} (P : A -> B) (a : L -> A) (a' : R -> A) (b : sumbool L R) : P (sumbool_rect (fun _ => A) a a' b) = sumbool_rect (fun _ => B) (fun x => P (a x)) (fun x => P (a' x)) b := pull_sumbool_rect_dep (fun _ => P) a a' b.
imports: Fiat.Common.Coq__8_4__8_5__Compat