2 ||M|| This file is part of HELM, an Hypertextual, Electronic
3 ||A|| Library of Mathematics, developed at the Computer Science
4 ||T|| Department, University of Bologna, Italy.
6 ||T|| HELM is free software; you can redistribute it and/or
7 ||A|| modify it under the terms of the GNU General Public License
8 \ / version 2 or (at your option) any later version.
9 \ / This software is distributed as is, NO WARRANTY.
10 V_______________________________________________________________ *)
14 (* interface functions ******************************************************)
16 let rec alpha mem x a =
18 let f () = match a.E.b_name with
20 | Some (token, mode) -> alpha mem x {a with E.b_name = Some (token ^ "_", mode)}