+++ /dev/null
-(*
- ||M|| This file is part of HELM, an Hypertextual, Electronic
- ||A|| Library of Mathematics, developed at the Computer Science
- ||T|| Department, University of Bologna, Italy.
- ||I||
- ||T|| HELM is free software; you can redistribute it and/or
- ||A|| modify it under the terms of the GNU General Public License
- \ / version 2 or (at your option) any later version.
- \ / This software is distributed as is, NO WARRANTY.
- V_______________________________________________________________ *)
-
-type id = string (* identifier *)
-
-type qid = id * bool * id list (* qualified identifier: name, local?, path *)
-
-type term = Sort of bool (* sorts: true = TYPE, false = PROP *)
- | GRef of qid * term list (* reference: name, arguments *)
- | Appl of term * term (* application: argument, function *)
- | Abst of id * term * term (* abstraction: name, domain, scope *)
-
-type command = Section of (bool * id) option (* section: Some true = open, Some false = reopen, None = close last *)
- | Context of qid option (* context: Some = last node, None = root *)
- | Block of id * term (* block opener: name, domain *)
- | Decl of id * term (* declaration: name, domain *)
- | Def of id * term * bool * term (* definition: name, domain, transparent?, body *)