{A B : Type} (f : A -> B) (l l' : list A) : list_map f (l ++ l') = list_map f l ++ list_map f l'. Proof. induction l as [|a l IHl]. 1: reflexivity. simpl; f_ap. Defined.
Require Import Basics.Overture Basics.Tactics Basics.PathGroupoids Basics.Trunc Require Import Types.Paths Types.Unit Types.Prod Types.Sigma Types.Sum