Module type AcyclicGraph.Point

type t
module Set : CSig.SetS with type elt = t
module Map : CMap.ExtS with type key = t and module Set := Set
module Constraint : CSet.S with type S.elt = t * constraint_type * t
val equal : t -> t -> bool
val compare : t -> t -> int
type explanation = (constraint_type * t) list
val error_inconsistency : constraint_type -> t -> t -> explanation lazy_t option -> 'a
val pr : t -> Pp.t