(** {2 Access to lower-level GTK widgets} *)
method about : MatitaGeneratedGui.aboutWin
+ method check : MatitaGeneratedGui.checkWin
method fileSel : MatitaGeneratedGui.fileSelectionWin
method main : MatitaGeneratedGui.mainWin
method proof : MatitaGeneratedGui.proofWin
end
+ (** singleton instance of the gui *)
+val instance: unit -> gui
+