Crossing.Monadicmodule Atom : sig ... endval create :
uniqueness:Uniqueness.Const.t Atom.t ->
contention:Contention.Const.t Atom.t ->
visibility:Visibility.Const.t Atom.t ->
staticity:Staticity.Const.t Atom.t ->
tCreate a mode crossing on the monadic fragment from the collection of mode crossings on each monadic axes.