1 (**************************************************************************)
4 (* ||A|| A project by Andrea Asperti *)
6 (* ||I|| Developers: *)
7 (* ||T|| The HELM team. *)
8 (* ||A|| http://helm.cs.unibo.it *)
10 (* \ / This file is distributed under the terms of the *)
11 (* v GNU General Public License Version 2 *)
13 (**************************************************************************)
15 set "baseuri" "cic:/matita/LAMBDA-TYPES/Unified-Sub/datatypes/Term".
19 - natural numbers : sorts h k, local references i j, lengths l o
20 - boolean values : p q
21 - generic leaf items : m n
22 - generic binding items: r s
23 - generic flat items : r s
24 - generic head items : m n
28 include "preamble.ma".
30 inductive Leaf: Set \def
35 inductive Bind: Set \def
41 inductive Flat: Set \def
46 inductive IntB: Set \def
47 | bind: Bool \to Bind \to IntB
50 inductive IntF: Set \def
51 | flat: Bool \to Flat \to IntF
54 inductive Term: Set \def
56 | intb: IntB \to Term \to Term \to Term
57 | intf: IntF \to Term \to Term \to Term