module E = CicEnvironment
module UM = UriManager
module D = Deannotate
+module PER = ProofEngineReduction
+module Ut = CicUtil
(* fresh name generator *****************************************************)
let fst3 (x, _, _) = x
let refine c t =
- try let t, _, _, _ = Rf.type_of_aux' [] c t Un.empty_ugraph in t
+ try let t, _, _, _ = Rf.type_of_aux' [] c t Un.oblivion_ugraph in t
with e ->
Printf.eprintf "REFINE EROR: %s\n" (Printexc.to_string e);
Printf.eprintf "Ref: context: %s\n" (Pp.ppcontext c);
raise e
let get_type c t =
- try let ty, _ = TC.type_of_aux' [] c t Un.empty_ugraph in ty
+ try let ty, _ = TC.type_of_aux' [] c t Un.oblivion_ugraph in ty
with e ->
Printf.eprintf "TC: context: %s\n" (Pp.ppcontext c);
Printf.eprintf "TC: term : %s\n" (Pp.ppterm t);
let is_atomic t = not (is_not_atomic t)
let get_ind_type uri tyno =
- match E.get_obj Un.empty_ugraph uri with
+ match E.get_obj Un.oblivion_ugraph uri with
| C.InductiveDefinition (tys, _, lpsno, _), _ -> lpsno, List.nth tys tyno
| _ -> assert false
let ext = match get_tail context (get_type context ty) with
| C.Sort C.Prop -> "_ind"
| C.Sort C.Set -> "_rec"
- | C.Sort C.CProp -> "_rec"
+ | C.Sort (C.CProp _) -> "_rect"
| C.Sort (C.Type _) -> "_rect"
| t ->
Printf.eprintf "CicPPP get_default_eliminator: %s\n" (Pp.ppterm t);
let cic = D.deannotate_term
+let occurs c ~what ~where =
+ let result = ref false in
+ let equality c t1 t2 =
+ let r = Ut.alpha_equivalence t1 t2 in
+ result := !result || r; r
+ in
+ let context, what, with_what = c, [what], [C.Rel 0] in
+ let _ = PER.replace_lifting ~equality ~context ~what ~with_what ~where in
+ !result
+
(* Ensuring Barendregt convenction ******************************************)
let rec add_entries map c = function
let get_fix_decl (sname, i, w, v) = sname, w in
let get_cofix_decl (sname, w, v) = sname, w in
let rec bc c = function
- | C.LetIn (name, v, t) ->
+ | C.LetIn (name, v, ty, t) ->
let name = mk_fresh_name c name in
- let entry = Some (name, C.Def (v, None)) in
- let v, t = bc c v, bc (entry :: c) t in
- C.LetIn (name, v, t)
+ let entry = Some (name, C.Def (v, ty)) in
+ let v, ty, t = bc c v, bc c ty, bc (entry :: c) t in
+ C.LetIn (name, v, ty, t)
| C.Lambda (name, w, t) ->
let name = mk_fresh_name c name in
let entry = Some (name, C.Decl w) in
let get_fix_decl (id, sname, i, w, v) = sname, cic w in
let get_cofix_decl (id, sname, w, v) = sname, cic w in
let rec bc c = function
- | C.ALetIn (id, name, v, t) ->
+ | C.ALetIn (id, name, v, ty, t) ->
let name = mk_fresh_name c name in
- let entry = Some (name, C.Def (cic v, None)) in
- let v, t = bc c v, bc (entry :: c) t in
- C.ALetIn (id, name, v, t)
+ let entry = Some (name, C.Def (cic v, cic ty)) in
+ let v, ty, t = bc c v, bc c ty, bc (entry :: c) t in
+ C.ALetIn (id, name, v, ty, t)
| C.ALambda (id, name, w, t) ->
let name = mk_fresh_name c name in
let entry = Some (name, C.Decl (cic w)) in