Set.Op
val (++) : OpamPackage.Set.t -> OpamPackage.Set.t -> OpamPackage.Set.t
Infix set union
val (--) : OpamPackage.Set.t -> OpamPackage.Set.t -> OpamPackage.Set.t
Infix set difference
val (%%) : OpamPackage.Set.t -> OpamPackage.Set.t -> OpamPackage.Set.t
Infix set intersection