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update in static_2 and app_2
[helm.git] / matita / matita / contribs / lambdadelta / apps_2 / functional / rtm.ma
diff --git a/matita/matita/contribs/lambdadelta/apps_2/functional/rtm.ma b/matita/matita/contribs/lambdadelta/apps_2/functional/rtm.ma
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-(**************************************************************************)
-(*       ___                                                              *)
-(*      ||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                  *)
-(*                                                                        *)
-(**************************************************************************)
-
-include "basic_2/syntax/term_vector.ma".
-include "basic_2/syntax/genv.ma".
-include "apps_2/functional/notation.ma".
-
-(* REDUCTION AND TYPE MACHINE ***********************************************)
-
-(* machine local environment *)
-inductive xenv: Type[0] ≝
-| XAtom: xenv                                    (* empty *)
-| XQuad: xenv → bind2 → nat → xenv → term → xenv (* entry *)
-.
-
-interpretation "atom (ext. local environment)"
-   'Star = XAtom.
-
-interpretation "environment construction (quad)"
-   'DxItem4 L I u K V = (XQuad L I u K V).
-
-(* machine stack *)
-definition stack: Type[0] ≝ list2 xenv term.
-
-(* machine status *)
-record rtm: Type[0] ≝
-{ rg: genv;  (* global environment *)
-  ru: nat;   (* current de Bruijn's level *)
-  re: xenv;  (* extended local environment *)
-  rs: stack; (* application stack *)
-  rt: term   (* code *)
-}.
-
-(* initial state *)
-definition rtm_i: genv → term → rtm ≝
-                  λG,T. mk_rtm G 0 (⋆) (Ⓔ) T.
-
-(* update code *)
-definition rtm_t: rtm → term → rtm ≝
-                  λM,T. match M with
-                  [ mk_rtm G u E _ _ ⇒ mk_rtm G u E (Ⓔ) T
-                  ].
-
-(* update closure *)
-definition rtm_u: rtm → xenv → term → rtm ≝
-                  λM,E,T. match M with
-                  [ mk_rtm G u _ _ _ ⇒ mk_rtm G u E (Ⓔ) T
-                  ].
-
-(* get global environment *)
-definition rtm_g: rtm → genv ≝
-                  λM. match M with
-                  [ mk_rtm G _ _ _ _ ⇒ G
-                  ].
-
-(* get local reference level *)
-definition rtm_l: rtm → nat ≝
-                  λM. match M with
-                  [ mk_rtm _ u E _ _ ⇒ match E with
-                     [ XAtom           ⇒ u
-                     | XQuad _ _ u _ _ ⇒ u
-                     ]
-                  ].
-
-(* get stack *)
-definition rtm_s: rtm → stack ≝
-                  λM. match M with
-                  [ mk_rtm _ _ _ S _ ⇒ S
-                  ].
-
-(* get code *)
-definition rtm_c: rtm → term ≝
-                  λM. match M with
-                  [ mk_rtm _ _ _ _ T ⇒ T
-                  ].