-<?xml encoding="ISO-8859-1"?>
-
-<!-- Copyright (C) 2000, 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://cs.unibo.it/helm/. -->
-
-<!--*****************************************************************-->
-<!-- DTD FOR CIC OBJECTS: -->
-<!-- First draft: September 1999, Claudio Sacerdoti Coen -->
-<!-- Revised: February 3 2000, Claudio Sacerdoti Coen, Irene Schena -->
-<!-- Last Revision: April 4 2000, Claudio Sacerdoti Coen -->
-<!-- Last Revision: June 19 2000, Claudio Sacerdoti Coen -->
-<!-- Last Revision: June 20 2000, Claudio Sacerdoti Coen -->
-<!--*****************************************************************-->
-
-<!-- CIC term declaration -->
-
-<!ENTITY % term '(LAMBDA|CAST|PROD|REL|SORT|APPLY|VAR|META|IMPLICIT|CONST|
- LETIN|MUTIND|MUTCONSTRUCT|MUTCASE|FIX|COFIX)'>
-
-<!-- CIC sorts -->
-
-<!ENTITY % sort '(Prop|Set|Type)'>
-
-<!-- CIC sequents -->
-
-<!ENTITY % sequent '((Decl|Def|Hidden)*,Goal)'>
-
-<!-- CIC objects: -->
-
-<!ELEMENT Definition (body, type)>
-<!ATTLIST Definition
- name CDATA #REQUIRED
- params CDATA #REQUIRED
- paramMode (POSSIBLE) #IMPLIED
- id ID #REQUIRED>
-
-<!ELEMENT Axiom (type)>
-<!ATTLIST Axiom
- name CDATA #REQUIRED
- params CDATA #REQUIRED
- id ID #REQUIRED>
-
-<!ELEMENT CurrentProof (Conjecture*,body,type)>
-<!ATTLIST CurrentProof
- name CDATA #REQUIRED
- id ID #REQUIRED>
-
-<!ELEMENT InductiveDefinition (InductiveType+)>
-<!ATTLIST InductiveDefinition
- noParams NMTOKEN #REQUIRED
- params CDATA #REQUIRED
- id ID #REQUIRED>
-
-<!ELEMENT Variable (body?,type)>
-<!ATTLIST Variable
- name CDATA #REQUIRED
- id ID #REQUIRED>
-
-<!ELEMENT Sequent %sequent;>
-<!ATTLIST Sequent
- no NMTOKEN #REQUIRED
- id ID #REQUIRED>
-
-<!-- Elements used in CIC objects, which are not terms: -->
-
-<!ELEMENT InductiveType (arity,Constructor*)>
-<!ATTLIST InductiveType
- name CDATA #REQUIRED
- inductive (true|false) #REQUIRED>
-
-<!ELEMENT Conjecture %sequent;>
-<!ATTLIST Conjecture
- no NMTOKEN #REQUIRED
- id ID #REQUIRED>
-
-<!ELEMENT Constructor %term;>
-<!ATTLIST Constructor
- name CDATA #REQUIRED>
-
-<!ELEMENT Decl %term;>
-<!ATTLIST Decl
- name CDATA #IMPLIED
- id ID #REQUIRED>
-
-<!ELEMENT Def %term;>
-<!ATTLIST Def
- name CDATA #IMPLIED
- id ID #REQUIRED>
-
-<!ELEMENT Hidden EMPTY>
-<!ATTLIST Hidden
- id ID #REQUIRED>
-
-<!ELEMENT Goal %term;>
-
-<!-- CIC terms: -->
-
-<!ELEMENT LAMBDA (source,target)>
-<!ATTLIST LAMBDA
- id ID #REQUIRED
- sort %sort; #REQUIRED>
-
-<!ELEMENT LETIN (term,letintarget)>
-<!ATTLIST LETIN
- id ID #REQUIRED
- sort %sort; #REQUIRED>
-
-<!ELEMENT PROD (source,target)>
-<!ATTLIST PROD
- id ID #REQUIRED
- type %sort; #REQUIRED>
-
-<!ELEMENT CAST (term,type)>
-<!ATTLIST CAST
- id ID #REQUIRED
- sort %sort; #REQUIRED>
-
-<!ELEMENT REL EMPTY>
-<!ATTLIST REL
- value NMTOKEN #REQUIRED
- binder CDATA #REQUIRED
- id ID #REQUIRED
- sort %sort; #REQUIRED>
-
-<!ELEMENT SORT EMPTY>
-<!ATTLIST SORT
- value CDATA #REQUIRED
- id ID #REQUIRED>
-
-<!ELEMENT APPLY (%term;)+>
-<!ATTLIST APPLY
- id ID #REQUIRED
- sort %sort; #REQUIRED>
-
-<!ELEMENT VAR EMPTY>
-<!ATTLIST VAR
- relUri CDATA #REQUIRED
- id ID #REQUIRED
- sort %sort; #REQUIRED>
-
-<!-- The substitutions are ordered by increasing DeBrujin -->
-<!-- index. An empty substitution means that that index is -->
-<!-- not accessible. -->
-<!ELEMENT META (substitution*)>
-<!ATTLIST META
- no NMTOKEN #REQUIRED
- id ID #REQUIRED
- sort %sort; #REQUIRED>
-
-<!ELEMENT IMPLICIT EMPTY>
-<!ATTLIST IMPLICIT
- id ID #REQUIRED>
-
-<!ELEMENT CONST EMPTY>
-<!ATTLIST CONST
- uri CDATA #REQUIRED
- id ID #REQUIRED
- sort %sort; #REQUIRED>
-
-<!ELEMENT MUTIND EMPTY>
-<!ATTLIST MUTIND
- uri CDATA #REQUIRED
- noType NMTOKEN #REQUIRED
- id ID #REQUIRED>
-
-<!ELEMENT MUTCONSTRUCT EMPTY>
-<!ATTLIST MUTCONSTRUCT
- uri CDATA #REQUIRED
- noType NMTOKEN #REQUIRED
- noConstr NMTOKEN #REQUIRED
- id ID #REQUIRED
- sort %sort; #REQUIRED>
-
-<!ELEMENT MUTCASE (patternsType,inductiveTerm,pattern*)>
-<!ATTLIST MUTCASE
- uriType CDATA #REQUIRED
- noType NMTOKEN #REQUIRED
- id ID #REQUIRED
- sort %sort; #REQUIRED>
-
-<!ELEMENT FIX (FixFunction+)>
-<!ATTLIST FIX
- noFun NMTOKEN #REQUIRED
- id ID #REQUIRED
- sort %sort; #REQUIRED>
-
-<!ELEMENT COFIX (CofixFunction+)>
-<!ATTLIST COFIX
- noFun NMTOKEN #REQUIRED
- id ID #REQUIRED
- sort %sort; #REQUIRED>
-
-<!-- Elements used in CIC terms: -->
-
-<!ELEMENT FixFunction (type,body)>
-<!ATTLIST FixFunction
- name CDATA #REQUIRED
- recIndex NMTOKEN #REQUIRED>
-
-<!ELEMENT CofixFunction (type,body)>
-<!ATTLIST CofixFunction
- name CDATA #REQUIRED>
-
-<!ELEMENT substitution ((%term;)?)>
-
-<!-- Sintactic sugar for CIC terms and for CIC objects: -->
-
-<!ELEMENT source %term;>
-
-<!ELEMENT target %term;>
-<!ATTLIST target
- binder CDATA #IMPLIED>
-
-<!ELEMENT letintarget %term;>
-<!ATTLIST letintarget
- binder CDATA #REQUIRED>
-
-<!ELEMENT term %term;>
-
-<!ELEMENT type %term;>
-
-<!ELEMENT arity %term;>
-
-<!ELEMENT patternsType %term;>
-
-<!ELEMENT inductiveTerm %term;>
-
-<!ELEMENT pattern %term;>
-
-<!ELEMENT body %term;>