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/Inc/defs".
17 (* DISPLACEMENT INCREMENT RELATION
20 include "Term/defs.ma".
22 inductive Inc (i:Nat): Bool \to Head \to Nat \to Prop \def
23 | inc_bind: \forall r. Inc i true (bind r) (succ i)
24 | inc_skip: \forall r. Inc i false (bind r) i
25 | inc_flat: \forall r,q. Inc i q (flat r) i