+++ /dev/null
-(* Copyright (C) 2004, HELM Team.
- *
- * This file is part of HELM, an Hypertextual, Electronic
- * Library of Mathematics, developed at the Computer Science
- * Department, University of Bologna, Italy.
- *
- * HELM is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version 2
- * of the License, or (at your option) any later version.
- *
- * HELM is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with HELM; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place - Suite 330, Boston,
- * MA 02111-1307, USA.
- *
- * For details, see the HELM World-Wide-Web page,
- * http://helm.cs.unibo.it/
- *)
-
-open CicTextualParser2
-
-EXTEND
- term: LEVEL "logic_add"
- [
- [ t1 = term; SYMBOL <:unicode<lor>> (* ∨ *); t2 = term ->
- return_term loc (CicAst.Appl [CicAst.Symbol ("or", 0); t1; t2])
- ]
- ];
- term: LEVEL "logic_mult"
- [
- [ t1 = term; SYMBOL <:unicode<land>> (* ∧ *); t2 = term ->
- return_term loc (CicAst.Appl [CicAst.Symbol ("and", 0); t1; t2])
- ]
- ];
- term: LEVEL "logic_inv"
- [
- [ SYMBOL <:unicode<lnot>> (* ¬ *); t = term ->
- return_term loc (CicAst.Appl [CicAst.Symbol ("not", 0); t])
- ]
- ];
-END
-
-let _ =
- (* TODO cut-and-pasted code: here, in arit_notation.ml and
- * disambiguateChoices.ml *)
- let const s = Cic.Const (s, []) in
- let mutind s = Cic.MutInd (s, 0, []) in
- DisambiguateChoices.add_symbol_choice "eq"
- ("leibnitz's equality",
- (fun interp _ args ->
- let t1, t2 =
- match args with
- | [t1; t2] -> t1, t2
- | _ -> raise DisambiguateChoices.Invalid_choice
- in
- Cic.Appl [
- Cic.MutInd (HelmLibraryObjects.Logic.eq_URI, 0, []);
- Cic.Implicit (Some `Type); t1; t2
- ]));
- DisambiguateChoices.add_binary_op "and" "logical and"
- (mutind HelmLibraryObjects.Logic.and_URI);
- DisambiguateChoices.add_binary_op "or" "logical or"
- (mutind HelmLibraryObjects.Logic.or_URI);
- DisambiguateChoices.add_unary_op "not" "logical not"
- (const HelmLibraryObjects.Logic.not_URI);
-
-(* vim:set encoding=utf8: *)