+++ /dev/null
-(**************************************************************************)
-(* ___ *)
-(* ||M|| *)
-(* ||A|| A project by Andrea Asperti *)
-(* ||T|| *)
-(* ||I|| Developers: *)
-(* ||T|| The HELM team. *)
-(* ||A|| http://helm.cs.unibo.it *)
-(* \ / *)
-(* \ / This file is distributed under the terms of the *)
-(* v GNU General Public License Version 2 *)
-(* *)
-(**************************************************************************)
-
-(* Project started Tue Aug 22, 2006 ***************************************)
-
-set "baseuri" "cic:/matita/LAMBDA-TYPES/Unified/SUB/Term/defs".
-
-(* POLARIZED TERMS
- - Naming policy:
- - natural numbers : sorts h k, local references i j, lengths l o
- - boolean values : p q
- - generic leaf items : m n
- - generic binding items: r s
- - generic flat items : r s
- - generic head items : m n
- - terms : t u
-*)
-
-include "../../RELATIONAL/Nat/defs.ma".
-include "../../RELATIONAL/Bool/defs.ma".
-
-inductive Leaf: Set \def
- | sort: Nat \to Leaf
- | lref: Nat \to Leaf
-.
-
-inductive Bind: Set \def
- | abbr: Bind
- | abst: Bind
- | excl: Bind
-.
-
-inductive Flat: Set \def
- | appl: Flat
- | cast: Flat
-.
-
-inductive Head: Set \def
- | bind: Bool \to Bind \to Head
- | flat: Bool \to Flat \to Head
-.
-
-inductive Term: Set \def
- | leaf: Leaf \to Term
- | head: Head \to Term \to Term \to Term
-.