open NTacStatus
open Continuationals.Stack
-let debug = false
+let debug = true
let pp =
if debug then (fun x -> prerr_endline (Lazy.force x)) else (fun _ -> ())
CicNotationPt.Ident (id,None)
;;
+let rec mk_prods l t =
+ match l with
+ [] -> t
+ | hd::tl -> CicNotationPt.Binder (`Forall, (mk_id hd, None), mk_prods tl t)
+;;
+
let mk_appl =
function
[] -> assert false
([1], rctx) lctx in
prerr_endline "C3:";
List.iter (fun n -> prerr_endline (string_of_int n)) indices;
- let indices = match rm_last indices with
- | [] -> []
- | _::tl -> tl in
+ let indices = rm_last indices in
let res = List.map (fun n -> let s,_ = List.nth ctx (n-1) in s) indices in
prerr_endline "C4:";
List.iter (fun n -> prerr_endline n) res;
(* returns the discrimination = injection+contradiction principle *)
(* FIXME: mi riservo di considerare tipi con parametri sx alla fine *)
-let mk_discriminator it status =
- let nleft = 0 in
+let mk_discriminator it nleft status =
let _,indname,_,cl = it in
(HExtlib.list_seq 0 (List.length ts)));
mk_appl (mk_id (kname it j)::us)])]
in
- CicNotationPt.Binder (`Lambda, (mk_id "e",
+ (** CicNotationPt.Binder (`Lambda, (mk_id "e",
Some (mk_appl
[mk_id "eq";
CicNotationPt.Implicit `JustOne;
mk_appl (mk_id (kname it i)::ts);
mk_appl (mk_id (kname it j)::us)])),
- let ts = ts @ [mk_id "e"] in
+ let ts = ts @ [mk_id "e"] in
let refl2 = mk_appl
[mk_id "refl";
CicNotationPt.Implicit `JustOne;
mk_appl (mk_id (kname it j)::us)] in
- let us = us @ [refl2] in
+ let us = us @ [refl2] in *)
CicNotationPt.Binder (`Forall, (mk_id "P", Some (CicNotationPt.Sort (`NType "1") )),
if i = j then
CicNotationPt.Binder (`Forall, (mk_id "_",
Some (iter (fun i acc ->
CicNotationPt.Binder (`Forall, (List.nth es i, Some (mk_eq tys ts us es i)), acc))
(nargs-1)
- (CicNotationPt.Binder (`Forall, (mk_id "_",
- Some (mk_eq tys ts us es nargs)),
- mk_id "P")))), mk_id "P")
- else mk_id "P"))
+ (** (CicNotationPt.Binder (`Forall, (mk_id "_",
+ Some (mk_eq tys ts us es nargs)),*)
+ (mk_id "P"))), mk_id "P")
+ else mk_id "P")
in
let inner i ts = CicNotationPt.Case
(mk_id "y",None,
- Some (CicNotationPt.Binder (`Lambda, (mk_id "y",None),
+ (*Some (CicNotationPt.Binder (`Lambda, (mk_id "y",None),
CicNotationPt.Binder (`Forall, (mk_id "_", Some
(mk_appl [mk_id "eq";CicNotationPt.Implicit
`JustOne;(*CicNotationPt.Implicit `JustOne*)
mk_appl (mk_id (kname it i)::ts);mk_id "y"])),
- CicNotationPt.Implicit `JustOne ))),
+ CicNotationPt.Implicit `JustOne )))*)
+ None,
List.map
(fun j ->
let nargs_kty = nargs it nleft j in
in
let outer = CicNotationPt.Case
(mk_id "x",None,
- Some (CicNotationPt.Binder (`Lambda, (mk_id "_",None),
- (*CicNotationPt.Sort (`NType "2")*) CicNotationPt.Implicit
- `JustOne)) ,
+ None ,
List.map
(fun i ->
let nargs_kty = nargs it nleft i in
List.combine ts nones),
inner i ts)
(HExtlib.list_seq 0 (List.length cl))) in
- let principle = CicNotationPt.Binder (`Lambda, (mk_id "x", Some (mk_id indname)),
- CicNotationPt.Binder (`Lambda, (mk_id "y", Some (mk_id indname)), outer))
+ let principle = CicNotationPt.Binder (`Lambda, (mk_id "x", (*Some (mk_id indname)*) None),
+ CicNotationPt.Binder (`Lambda, (mk_id "y", (*Some (mk_id indname)*) None), outer))
in
pp (lazy ("discriminator = " ^ (CicNotationPp.pp_term principle)));
let status, it = whd status ctx' (mk_cic_term ctx' it) in
let status, it = term_of_cic_term status it ctx' in
let _uri,indtyno,its = match it with
- NCic.Const (NReference.Ref (uri, NReference.Ind (_,indtyno,_)) as r) ->
+ | NCic.Const (NReference.Ref (uri, NReference.Ind (_,indtyno,_)) as r)
+ | NCic.Appl (NCic.Const
+ (NReference.Ref (uri, NReference.Ind (_,indtyno,_)) as r)::_) ->
uri, indtyno, NCicEnvironment.get_checked_indtys r
| _ -> prerr_endline ("discriminate: indty =" ^ NCicPp.ppterm
~metasenv:[] ~subst:[] ~context:[] it) ; assert false in
let _,leftno,its,_,_ = its in
status, leftno, List.nth its indtyno
in
-
+
+ let itnargs =
+ let _,_,arity,_ = it in
+ List.length (arg_list 0 arity) in
+ let _,itname,_,_ = it in
+ let params = List.map (fun x -> "a" ^ string_of_int x) (HExtlib.list_seq 1 (itnargs+1)) in
+ let print_tac s status = pp s ; status in
NTactics.block_tac (
[(fun status ->
- let status, discr = mk_discriminator it status in
- NTactics.cut_tac ("",0, CicNotationPt.Binder (`Forall, (mk_id "x", None),
+ let status, discr = mk_discriminator it leftno status in
+ NTactics.cut_tac ("",0, mk_prods params (CicNotationPt.Binder (`Forall, (mk_id "x",
+ Some (mk_appl (List.map mk_id (itname::params)))),
CicNotationPt.Binder (`Forall, (mk_id "y", None),
- CicNotationPt.Binder (`Forall, (mk_id "e",
+ CicNotationPt.Binder (`Forall, (mk_id "e",
Some (mk_appl [mk_id "eq";CicNotationPt.Implicit `JustOne; mk_id "x"; mk_id "y"])),
- mk_appl [discr; mk_id "x"; mk_id "y";
- mk_id "e"]))))
+ mk_appl [discr; mk_id "x"; mk_id "y"(*;mk_id "e"*)])))))
status);
NTactics.branch_tac;
- NTactics.reduce_tac ~reduction:(`Normalize true) ~where:default_pattern;
- NTactics.intro_tac "x";
+ print_tac (lazy "ci sono");
+ NTactics.reduce_tac ~reduction:(`Normalize true) ~where:default_pattern]
+ @ List.map (fun x -> NTactics.intro_tac x) params @
+ [NTactics.intro_tac "x";
NTactics.intro_tac "y";
NTactics.intro_tac "Deq";
+ print_tac (lazy "ci sono 2");
NTactics.rewrite_tac ~dir:`RightToLeft ~what:("",0,mk_id "Deq") ~where:default_pattern;
NTactics.cases_tac ~what:("",0,mk_id "x") ~where:default_pattern]
@ dbranches it leftno @
[NTactics.shift_tac;
+ print_tac (lazy "ci sono 3");
NTactics.intro_tac "#discriminate";
- NTactics.apply_tac ("",0,mk_appl [mk_id "#discriminate";
- CicNotationPt.Implicit `JustOne;
- CicNotationPt.Implicit `JustOne; mk_id eq_name ]);
+ NTactics.apply_tac ("",0,mk_appl ([mk_id "#discriminate"]@
+ HExtlib.mk_list (CicNotationPt.Implicit `JustOne) (List.length params + 2) @
+ [mk_id eq_name ]));
NTactics.reduce_tac ~reduction:(`Normalize true) ~where:default_pattern;
NTactics.clear_tac ["#discriminate"];
NTactics.merge_tac]
| _ -> assert false in
let names_to_gen, _ =
cascade_select_in_ctx ~subst:(get_subst status) context (var+cur_eq) in
+ let names_to_gen = match names_to_gen with [] -> [] | _::tl -> tl in
let gen_tac x =
NTactics.generalize_tac
~where:("",0,(Some (mk_id x),[], Some CicNotationPt.UserInput)) in
(List.map NTactics.intro_tac (List.rev names_to_gen))) status
;;
+let clearid_tac ~context cur_eq =
+ fun status ->
+ let eq_name,(NCic.Decl s | NCic.Def (s,_)) = List.nth context (cur_eq-1) in
+ let _,ctx' = HExtlib.split_nth cur_eq context in
+ let status, s = NTacStatus.whd status ctx' (mk_cic_term ctx' s) in
+ let status, s = term_of_cic_term status s ctx' in
+ pp (lazy (Printf.sprintf "clearid: equation %s" eq_name));
+ let names_to_gen, _ =
+ cascade_select_in_ctx ~subst:(get_subst status) context cur_eq in
+ let names_to_gen = names_to_gen @ [eq_name] in
+ let gen_tac x =
+ NTactics.generalize_tac
+ ~where:("",0,(Some (mk_id x),[], Some CicNotationPt.UserInput)) in
+ NTactics.block_tac ((List.map gen_tac names_to_gen)@
+ [NTactics.clear_tac names_to_gen;
+ NTactics.apply_tac ("",0, mk_appl [mk_id "streicherK";
+ CicNotationPt.Implicit `JustOne;
+ CicNotationPt.Implicit `JustOne;
+ CicNotationPt.Implicit `JustOne;
+ CicNotationPt.Implicit `JustOne]);
+ NTactics.reduce_tac ~reduction:(`Normalize true)
+ ~where:default_pattern] @
+ (let names_to_intro =
+ match List.rev names_to_gen with
+ | [] -> []
+ | _::tl -> tl in
+ List.map NTactics.intro_tac names_to_intro)) status
+;;
+
let get_ctx st goal =
ctx_of (get_goalty st goal)
;;
let rit = NReference.mk_indty true kref in
let _,_,its,_,itno = NCicEnvironment.get_checked_indtys rit in
let it = List.nth its itno in
- let newprods = (nargs it nleft (ki-1)) + 1 in
+ let newprods = nargs it nleft (ki-1) in
`Discriminate (newprods, false)
| NCic.Rel j, _
when NCicTypeChecker.does_not_occur ~subst ctx' (j-1) j r ->
let rec aux i =
try
let index = List.length ctx - i in
+ pp (lazy ("provo classify di index = " ^string_of_int index));
match (List.nth ctx (index - 1)) with
| n, (NCic.Decl ty | NCic.Def (ty,_)) ->
(let _,ctx_ty = HExtlib.split_nth index ctx in
match kind with
| `Identity ->
let status, goalty = term_of_cic_term status (get_goalty status goal) ctx in
- if NCicTypeChecker.does_not_occur ~subst:(get_subst status) ctx (index - 1) index goalty
- then status, Some (List.length ctx - i), kind
- else aux (i+1)
+ status, Some (List.length ctx - i), kind
| `Cycle | `Blob -> aux (i+1) (* XXX: skip cyclic/blob equations for now *)
| _ ->
if (List.for_all (fun x -> x <> n) acc) then
| Some cur_eq, `Identity ->
pp (lazy (Printf.sprintf "destruct: identity - nprods is %d, selection is %d, context is %s" nprods cur_eq (NCicPp.ppcontext ~metasenv:[] ~subst ctx)));
let eq_name,_ = List.nth ctx (cur_eq-1) in
- let status' = NTactics.exec (NTactics.clear_tac [eq_name]) status goal in
+ let status' = NTactics.exec (clearid_tac ~context:ctx cur_eq) status goal in
destruct_tac0 nprods (List.filter (fun x -> x <> eq_name) acc) status' (get_newgoal status status' goal)
| Some cur_eq, `Cycle -> (* TODO, should never happen *)
pp (lazy (Printf.sprintf "destruct: cycle - nprods is %d, selection is %d, context is %s" nprods cur_eq (NCicPp.ppcontext ~metasenv:[] ~subst ctx)));
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