module AMap:sig
..end
type
t
val empty : t
val add : Construction.Compute.lettre ->
Construction.Compute.Rel.t ->
t -> t
val find : Construction.Compute.lettre ->
t -> Construction.Compute.Rel.t
val add_elt : Construction.Compute.lettre ->
Construction.Compute.etat * Construction.Compute.etat ->
t -> t