fact: Definition toParam@{} : Param44.Rel@{i} A B := @Param44.BuildRel A B (graph f) (@Map4.BuildHas@{i} _ _ _ _ (fun _ _ => id) (fun _ _ => id) (fun _ _ _ => 1%path)) (@Map4.BuildHas@{i} _ _ _ _ comap_in_map map_in_comap map_in_comapK).
imports: ssreflect