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 binding items: r s
22 - generic flat items : r s
23 - generic head items : m n
27 include "preamble.ma".
29 inductive Bind: Type \def
35 inductive Flat: Type \def
40 inductive IntB: Type \def
41 | bind: Bool \to Bind \to IntB
44 inductive IntF: Type \def
45 | flat: Bool \to Flat \to IntF
48 inductive Term: Type \def
51 | intb: IntB \to Term \to Term \to Term
52 | intf: IntF \to Term \to Term \to Term