src/HOL/Import/proof_kernel.ML
author obua
Thu Feb 16 03:23:57 2006 +0100 (2006-02-16)
changeset 19066 df24f2564aaa
parent 19064 bf19cc5a7899
child 19067 c0321d7d6b3d
permissions -rw-r--r--
adapted to kernel changes
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(*  Title:      HOL/Import/proof_kernel.ML
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    ID:         $Id$
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    Author:     Sebastian Skalberg (TU Muenchen), Steven Obua
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*)
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signature ProofKernel =
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sig
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    type hol_type
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    type tag
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    type term
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    type thm
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    type ('a,'b) subst
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    type proof_info
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    datatype proof = Proof of proof_info * proof_content
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	 and proof_content
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	   = PRefl of term
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	   | PInstT of proof * (hol_type,hol_type) subst
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	   | PSubst of proof list * term * proof
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	   | PAbs of proof * term
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	   | PDisch of proof * term
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	   | PMp of proof * proof
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	   | PHyp of term
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	   | PAxm of string * term
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	   | PDef of string * string * term
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	   | PTmSpec of string * string list * proof
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	   | PTyDef of string * string * proof
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	   | PTyIntro of string * string * string * string * term * term * proof
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	   | POracle of tag * term list * term
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	   | PDisk
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	   | PSpec of proof * term
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	   | PInst of proof * (term,term) subst
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	   | PGen of proof * term
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	   | PGenAbs of proof * term option * term list
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	   | PImpAS of proof * proof
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	   | PSym of proof
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	   | PTrans of proof * proof
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	   | PComb of proof * proof
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	   | PEqMp of proof * proof
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	   | PEqImp of proof
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	   | PExists of proof * term * term
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	   | PChoose of term * proof * proof
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	   | PConj of proof * proof
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	   | PConjunct1 of proof
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	   | PConjunct2 of proof
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	   | PDisj1 of proof * term
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	   | PDisj2 of proof * term
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	   | PDisjCases of proof * proof * proof
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	   | PNotI of proof
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	   | PNotE of proof
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	   | PContr of proof * term
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    exception PK of string * string
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    val get_proof_dir: string -> theory -> string option
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    val disambiguate_frees : Thm.thm -> Thm.thm
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    val debug : bool ref
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    val disk_info_of : proof -> (string * string) option
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    val set_disk_info_of : proof -> string -> string -> unit
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    val mk_proof : proof_content -> proof
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    val content_of : proof -> proof_content
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    val import_proof : string -> string -> theory -> (theory -> term) option * (theory -> proof)
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    val rewrite_hol4_term: Term.term -> theory -> Thm.thm
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    val type_of : term -> hol_type
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    val get_thm  : string -> string         -> theory -> (theory * thm option)
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    val get_def  : string -> string -> term -> theory -> (theory * thm option)
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    val get_axiom: string -> string         -> theory -> (theory * thm option)
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    val store_thm : string -> string -> thm -> theory -> theory * thm
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    val to_isa_thm : thm -> (term * term) list * Thm.thm
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    val to_isa_term: term -> Term.term
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    val to_hol_thm : Thm.thm -> thm
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    val REFL : term -> theory -> theory * thm
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    val ASSUME : term -> theory -> theory * thm
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    val INST_TYPE : (hol_type,hol_type) subst -> thm -> theory -> theory * thm
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    val INST : (term,term)subst -> thm -> theory -> theory * thm
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    val EQ_MP : thm -> thm -> theory -> theory * thm
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    val EQ_IMP_RULE : thm -> theory -> theory * thm
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    val SUBST : thm list -> term -> thm -> theory -> theory * thm
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    val DISJ_CASES : thm -> thm -> thm -> theory -> theory * thm
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    val DISJ1: thm -> term -> theory -> theory * thm
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    val DISJ2: term -> thm -> theory -> theory * thm
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    val IMP_ANTISYM: thm -> thm -> theory -> theory * thm
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    val SYM : thm -> theory -> theory * thm
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    val MP : thm -> thm -> theory -> theory * thm
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    val GEN : term -> thm -> theory -> theory * thm
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    val CHOOSE : term -> thm -> thm -> theory -> theory * thm
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    val EXISTS : term -> term -> thm -> theory -> theory * thm
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    val ABS : term -> thm -> theory -> theory * thm
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    val GEN_ABS : term option -> term list -> thm -> theory -> theory * thm
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    val TRANS : thm -> thm -> theory -> theory * thm
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    val CCONTR : term -> thm -> theory -> theory * thm
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    val CONJ : thm -> thm -> theory -> theory * thm
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    val CONJUNCT1: thm -> theory -> theory * thm
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    val CONJUNCT2: thm -> theory -> theory * thm
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    val NOT_INTRO: thm -> theory -> theory * thm
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    val NOT_ELIM : thm -> theory -> theory * thm
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    val SPEC : term -> thm -> theory -> theory * thm
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    val COMB : thm -> thm -> theory -> theory * thm
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    val DISCH: term -> thm -> theory -> theory * thm
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    val type_introduction: string -> string -> string -> string -> string -> term * term -> thm -> theory -> theory * thm
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    val new_definition : string -> string -> term -> theory -> theory * thm
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    val new_specification : string -> string -> string list -> thm -> theory -> theory * thm
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    val new_type_definition : string -> string -> string -> thm -> theory -> theory * thm
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    val new_axiom : string -> term -> theory -> theory * thm
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    val prin : term -> unit 
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    val protect_factname : string -> string
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end
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structure ProofKernel :> ProofKernel =
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struct
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type hol_type = Term.typ
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type term = Term.term
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datatype tag = Tag of string list
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type ('a,'b) subst = ('a * 'b) list
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datatype thm = HOLThm of (Term.term * Term.term) list * Thm.thm
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fun hthm2thm (HOLThm (_, th)) = th 
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fun to_hol_thm th = HOLThm ([], th)
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datatype proof_info
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  = Info of {disk_info: (string * string) option ref}
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datatype proof = Proof of proof_info * proof_content
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     and proof_content
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       = PRefl of term
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       | PInstT of proof * (hol_type,hol_type) subst
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       | PSubst of proof list * term * proof
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       | PAbs of proof * term
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       | PDisch of proof * term
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       | PMp of proof * proof
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       | PHyp of term
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       | PAxm of string * term
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       | PDef of string * string * term
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       | PTmSpec of string * string list * proof
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       | PTyDef of string * string * proof
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       | PTyIntro of string * string * string * string * term * term * proof
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       | POracle of tag * term list * term
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       | PDisk
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       | PSpec of proof * term
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       | PInst of proof * (term,term) subst
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       | PGen of proof * term
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       | PGenAbs of proof * term option * term list
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       | PImpAS of proof * proof
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       | PSym of proof
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       | PTrans of proof * proof
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       | PComb of proof * proof
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       | PEqMp of proof * proof
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       | PEqImp of proof
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       | PExists of proof * term * term
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       | PChoose of term * proof * proof
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       | PConj of proof * proof
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       | PConjunct1 of proof
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       | PConjunct2 of proof
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       | PDisj1 of proof * term
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       | PDisj2 of proof * term
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       | PDisjCases of proof * proof * proof
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       | PNotI of proof
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       | PNotE of proof
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       | PContr of proof * term
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exception PK of string * string
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fun ERR f mesg = PK (f,mesg)
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fun print_exn e = 
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    case e of
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	PK (m,s) => (writeln ("PK (" ^ m ^ "): " ^ s); raise e)
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      | _ => OldGoals.print_exn e
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(* Compatibility. *)
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fun mk_syn thy c =
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  if Syntax.is_identifier c andalso not (Syntax.is_keyword (Sign.syn_of thy) c) then NoSyn
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  else Syntax.literal c
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fun quotename c =
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  if Syntax.is_identifier c andalso not (OuterSyntax.is_keyword c) then c else quote c
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fun simple_smart_string_of_cterm ct =
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    let
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	val {sign,t,T,...} = rep_cterm ct
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	(* Hack to avoid parse errors with Trueprop *)
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	val ct  = (cterm_of sign (HOLogic.dest_Trueprop t)
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			   handle TERM _ => ct)
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    in
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	quote(
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	Library.setmp print_mode [] (
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	Library.setmp show_brackets false (
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	Library.setmp show_all_types true (
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	Library.setmp Syntax.ambiguity_is_error false (
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	Library.setmp show_sorts true string_of_cterm))))
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	ct)
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    end
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exception SMART_STRING
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fun smart_string_of_cterm ct =
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    let
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	val {sign,t,T,...} = rep_cterm ct
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        (* Hack to avoid parse errors with Trueprop *)
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	val ct  = (cterm_of sign (HOLogic.dest_Trueprop t)
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		   handle TERM _ => ct)
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	fun match cu = t aconv (term_of cu)
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	fun G 0 = Library.setmp show_types true (Library.setmp show_sorts true)
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	  | G 1 = Library.setmp show_brackets true (G 0)
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	  | G 2 = Library.setmp show_all_types true (G 0)
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	  | G 3 = Library.setmp show_brackets true (G 2)
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          | G _ = raise SMART_STRING 
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	fun F n =
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	    let
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		val str = Library.setmp show_brackets false (G n string_of_cterm) ct
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		val cu  = read_cterm sign (str,T)
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	    in
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		if match cu
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		then quote str
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		else F (n+1)
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	    end
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	    handle ERROR mesg => F (n+1)
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		 | SMART_STRING => raise ERROR ("smart_string failed for: "^(G 0 string_of_cterm ct))
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    in
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      Library.setmp print_mode [] (Library.setmp Syntax.ambiguity_is_error true F) 0
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    end
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    handle ERROR mesg => simple_smart_string_of_cterm ct
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val smart_string_of_thm = smart_string_of_cterm o cprop_of
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fun prth th = writeln (Library.setmp print_mode [] string_of_thm th)
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fun prc ct = writeln (Library.setmp print_mode [] string_of_cterm ct)
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fun prin t = writeln
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  (Library.setmp print_mode [] (fn () => Sign.string_of_term (the_context ()) t) ());
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fun pth (HOLThm(ren,thm)) =
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    let
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	(*val _ = writeln "Renaming:"
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	val _ = app (fn(v,w) => (prin v; writeln " -->"; prin w)) ren*)
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	val _ = prth thm
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    in
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	()
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    end
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fun disk_info_of (Proof(Info{disk_info,...},_)) = !disk_info
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fun mk_proof p = Proof(Info{disk_info = ref NONE},p)
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fun content_of (Proof(_,p)) = p
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fun set_disk_info_of (Proof(Info{disk_info,...},_)) thyname thmname =
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    disk_info := SOME(thyname,thmname)
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structure Lib =
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struct
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fun wrap b e s = String.concat[b,s,e]
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fun assoc x =
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    let
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	fun F [] = raise PK("Lib.assoc","Not found")
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	  | F ((x',y)::rest) = if x = x'
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			       then y
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			       else F rest
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    in
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	F
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    end
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fun i mem L = 
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    let fun itr [] = false 
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	  | itr (a::rst) = i=a orelse itr rst 
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    in itr L end;
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fun insert i L = if i mem L then L else i::L
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fun mk_set [] = []
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  | mk_set (a::rst) = insert a (mk_set rst)
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fun [] union S = S
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  | S union [] = S
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  | (a::rst) union S2 = rst union (insert a S2)
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fun implode_subst [] = []
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  | implode_subst (x::r::rest) = ((x,r)::(implode_subst rest))
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  | implode_subst _ = raise ERR "implode_subst" "malformed substitution list"
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fun apboth f (x,y) = (f x,f y)
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end
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open Lib
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structure Tag =
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struct
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val empty_tag = Tag []
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fun read name = Tag [name]
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fun merge (Tag tag1) (Tag tag2) = Tag (Lib.union(tag1,tag2))
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end
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(* Acutal code. *)
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fun get_segment thyname l = (Lib.assoc "s" l
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			     handle PK _ => thyname)
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val get_name : (string * string) list -> string = Lib.assoc "n"
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local
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    open LazyScan
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    infix 7 |-- --|
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    infix 5 :-- -- ^^
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    infix 3 >>
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    infix 0 ||
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in
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exception XML of string
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datatype xml = Elem of string * (string * string) list * xml list
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datatype XMLtype = XMLty of xml | FullType of hol_type
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datatype XMLterm = XMLtm of xml | FullTerm of term
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fun pair x y = (x,y)
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fun scan_id toks =
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    let
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        val (x,toks2) = one Char.isAlpha toks
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        val (xs,toks3) = any Char.isAlphaNum toks2
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    in
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        (String.implode (x::xs),toks3)
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    end
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fun scan_string str c =
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    let
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	fun F [] toks = (c,toks)
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	  | F (c::cs) toks =
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	    case LazySeq.getItem toks of
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		SOME(c',toks') =>
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		if c = c'
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		then F cs toks'
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		else raise SyntaxError
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	      | NONE => raise SyntaxError
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    in
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	F (String.explode str)
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    end
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local
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    val scan_entity =
skalberg@14516
   343
	(scan_string "amp;" #"&")
skalberg@14516
   344
	    || scan_string "quot;" #"\""
skalberg@14516
   345
	    || scan_string "gt;" #">"
skalberg@14516
   346
	    || scan_string "lt;" #"<"
skalberg@14620
   347
            || scan_string "apos;" #"'"
skalberg@14516
   348
in
skalberg@14516
   349
fun scan_nonquote toks =
skalberg@14516
   350
    case LazySeq.getItem toks of
skalberg@15531
   351
	SOME (c,toks') =>
skalberg@14516
   352
	(case c of
skalberg@14516
   353
	     #"\"" => raise SyntaxError
skalberg@14516
   354
	   | #"&" => scan_entity toks'
skalberg@14516
   355
	   | c => (c,toks'))
skalberg@15531
   356
      | NONE => raise SyntaxError
skalberg@14516
   357
end
skalberg@14516
   358
skalberg@14516
   359
val scan_string = $$ #"\"" |-- repeat scan_nonquote --| $$ #"\"" >>
skalberg@14516
   360
		     String.implode
skalberg@14516
   361
skalberg@14516
   362
val scan_attribute = scan_id -- $$ #"=" |-- scan_string
skalberg@14516
   363
skalberg@14516
   364
val scan_start_of_tag = $$ #"<" |-- scan_id --
skalberg@14516
   365
			   repeat ($$ #" " |-- scan_attribute)
skalberg@14516
   366
skalberg@14518
   367
(* The evaluation delay introduced through the 'toks' argument is needed
skalberg@14518
   368
for the sake of the SML/NJ (110.9.1) compiler.  Either that or an explicit
skalberg@14518
   369
type :-( *)
skalberg@14518
   370
fun scan_end_of_tag toks = ($$ #"/" |-- $$ #">" |-- succeed []) toks
skalberg@14518
   371
skalberg@14516
   372
val scan_end_tag = $$ #"<" |-- $$ #"/" |-- scan_id --| $$ #">"
skalberg@14516
   373
skalberg@14516
   374
fun scan_children id = $$ #">" |-- repeat scan_tag -- scan_end_tag >>
skalberg@14516
   375
		       (fn (chldr,id') => if id = id'
skalberg@14516
   376
					  then chldr
skalberg@14516
   377
					  else raise XML "Tag mismatch")
skalberg@14516
   378
and scan_tag toks =
skalberg@14516
   379
    let
skalberg@14516
   380
	val ((id,atts),toks2) = scan_start_of_tag toks
skalberg@14516
   381
	val (chldr,toks3) = (scan_children id || scan_end_of_tag) toks2
skalberg@14516
   382
    in
skalberg@14516
   383
	(Elem (id,atts,chldr),toks3)
skalberg@14516
   384
    end
skalberg@14516
   385
end
skalberg@14516
   386
skalberg@14516
   387
val type_of = Term.type_of
skalberg@14516
   388
skalberg@14516
   389
val boolT = Type("bool",[])
skalberg@14516
   390
val propT = Type("prop",[])
skalberg@14516
   391
skalberg@14516
   392
fun mk_defeq name rhs thy =
skalberg@14516
   393
    let
skalberg@14516
   394
	val ty = type_of rhs
skalberg@14516
   395
    in
wenzelm@17894
   396
	Logic.mk_equals (Const(Sign.intern_const thy name,ty),rhs)
skalberg@14516
   397
    end
skalberg@14516
   398
skalberg@14516
   399
fun mk_teq name rhs thy =
skalberg@14516
   400
    let
skalberg@14516
   401
	val ty = type_of rhs
skalberg@14516
   402
    in
wenzelm@17894
   403
	HOLogic.mk_eq (Const(Sign.intern_const thy name,ty),rhs)
skalberg@14516
   404
    end
skalberg@14516
   405
skalberg@14516
   406
fun intern_const_name thyname const thy =
skalberg@14516
   407
    case get_hol4_const_mapping thyname const thy of
skalberg@15531
   408
	SOME (_,cname,_) => cname
skalberg@15531
   409
      | NONE => (case get_hol4_const_renaming thyname const thy of
wenzelm@17894
   410
		     SOME cname => Sign.intern_const thy (thyname ^ "." ^ cname)
wenzelm@17894
   411
		   | NONE => Sign.intern_const thy (thyname ^ "." ^ const))
skalberg@14516
   412
skalberg@14516
   413
fun intern_type_name thyname const thy =
skalberg@14516
   414
    case get_hol4_type_mapping thyname const thy of
skalberg@15531
   415
	SOME (_,cname) => cname
wenzelm@17894
   416
      | NONE => Sign.intern_const thy (thyname ^ "." ^ const)
skalberg@14516
   417
skalberg@14516
   418
fun mk_vartype name = TFree(name,["HOL.type"])
skalberg@14516
   419
fun mk_thy_type thy Thy Tyop Args = Type(intern_type_name Thy Tyop thy,Args)
skalberg@14516
   420
skalberg@14516
   421
val mk_var = Free
skalberg@14516
   422
skalberg@14516
   423
fun dom_rng (Type("fun",[dom,rng])) = (dom,rng)
skalberg@14516
   424
  | dom_rng _ = raise ERR "dom_rng" "Not a functional type"
skalberg@14516
   425
wenzelm@16486
   426
fun mk_thy_const thy Thy Nam Ty = Const(intern_const_name Thy Nam thy,Ty)
skalberg@14516
   427
obua@17322
   428
local 
wenzelm@17894
   429
  fun get_const sg thyname name = 
wenzelm@17894
   430
    (case Sign.const_type sg name of
wenzelm@17894
   431
      SOME ty => Const (name, ty)
wenzelm@17894
   432
    | NONE => raise ERR "get_type" (name ^ ": No such constant"))
skalberg@14516
   433
in
wenzelm@16486
   434
fun prim_mk_const thy Thy Nam =
skalberg@14516
   435
    let
wenzelm@17894
   436
      val name = intern_const_name Thy Nam thy
wenzelm@17894
   437
      val cmaps = HOL4ConstMaps.get thy
skalberg@14516
   438
    in
wenzelm@17894
   439
      case StringPair.lookup cmaps (Thy,Nam) of
wenzelm@17894
   440
        SOME(_,_,SOME ty) => Const(name,ty)
wenzelm@17894
   441
      | _ => get_const thy Thy name
skalberg@14516
   442
    end
skalberg@14516
   443
end
skalberg@14516
   444
skalberg@14516
   445
fun mk_comb(f,a) = f $ a
skalberg@14516
   446
skalberg@14516
   447
(* Needed for HOL Light *)
skalberg@14516
   448
fun protect_tyvarname s =
skalberg@14516
   449
    let
skalberg@14516
   450
	fun no_quest s =
skalberg@14516
   451
	    if Char.contains s #"?"
skalberg@14516
   452
	    then String.translate (fn #"?" => "q_" | c => Char.toString c) s
skalberg@14516
   453
	    else s
skalberg@14516
   454
	fun beg_prime s =
skalberg@14516
   455
	    if String.isPrefix "'" s
skalberg@14516
   456
	    then s
skalberg@14516
   457
	    else "'" ^ s
skalberg@14516
   458
    in
skalberg@14516
   459
	s |> no_quest |> beg_prime
skalberg@14516
   460
    end
obua@17440
   461
obua@17444
   462
val protected_varnames = ref (Symtab.empty:string Symtab.table)
obua@17444
   463
val invented_isavar = ref (IntInf.fromInt 0)
obua@17444
   464
obua@17490
   465
fun innocent_varname s = Syntax.is_identifier s andalso not (String.isPrefix "u_" s)
obua@17490
   466
wenzelm@18678
   467
val check_name_thy = theory "Main"
obua@17592
   468
wenzelm@18678
   469
fun valid_boundvarname s =
wenzelm@18678
   470
  can (fn () => read_cterm check_name_thy ("SOME "^s^". True", TypeInfer.logicT)) ();
wenzelm@18678
   471
wenzelm@18678
   472
fun valid_varname s =
wenzelm@18678
   473
  can (fn () => read_cterm check_name_thy (s, TypeInfer.logicT)) ();
obua@17490
   474
skalberg@14516
   475
fun protect_varname s =
obua@17490
   476
    if innocent_varname s andalso valid_varname s then s else
obua@17444
   477
    case Symtab.lookup (!protected_varnames) s of
obua@17444
   478
      SOME t => t
obua@17444
   479
    | NONE => 
obua@17444
   480
      let
obua@17444
   481
	  val _ = invented_isavar := IntInf.+ (!invented_isavar, IntInf.fromInt 1)
obua@17490
   482
	  val t = "u_"^(IntInf.toString (!invented_isavar))
obua@17444
   483
          val _ = protected_varnames := Symtab.update (s, t) (!protected_varnames)
obua@17444
   484
      in
obua@17444
   485
	  t
obua@17444
   486
      end
skalberg@14516
   487
obua@17490
   488
fun protect_boundvarname s = if innocent_varname s andalso valid_boundvarname s then s else "u"
obua@17440
   489
obua@17440
   490
fun mk_lambda (v as Free (x, T)) t = Abs (protect_boundvarname x, T, abstract_over (v, t))
obua@17440
   491
  | mk_lambda (v as Var ((x, _), T)) t = Abs (protect_boundvarname x, T, abstract_over (v, t))
obua@17440
   492
  | mk_lambda v t = raise TERM ("lambda", [v, t]);
obua@17440
   493
 
obua@17440
   494
fun replacestr x y s = 
obua@17440
   495
let
obua@17440
   496
  val xl = explode x
obua@17440
   497
  val yl = explode y
obua@17440
   498
  fun isprefix [] ys = true
obua@17440
   499
    | isprefix (x::xs) (y::ys) = if x = y then isprefix xs ys else false
obua@17440
   500
    | isprefix _ _ = false  
obua@17440
   501
  fun isp s = isprefix xl s
obua@17440
   502
  fun chg s = yl@(List.drop (s, List.length xl))
obua@17440
   503
  fun r [] = []
obua@17440
   504
    | r (S as (s::ss)) = if isp S then r (chg S) else s::(r ss) 
obua@17440
   505
in
obua@17440
   506
  implode(r (explode s))
obua@17440
   507
end    
obua@17440
   508
obua@17440
   509
fun protect_factname s = replacestr "." "_dot_" s
obua@17440
   510
fun unprotect_factname s = replacestr "_dot_" "." s 
obua@17440
   511
obua@17322
   512
val ty_num_prefix = "N_"
obua@17322
   513
obua@17322
   514
fun startsWithDigit s = Char.isDigit (hd (String.explode s))
obua@17322
   515
obua@17322
   516
fun protect_tyname tyn = 
obua@17322
   517
  let
obua@17322
   518
    val tyn' = 
obua@17440
   519
      if String.isPrefix ty_num_prefix tyn then raise (ERR "protect_ty_name" ("type name '"^tyn^"' is reserved")) else 
obua@17322
   520
      (if startsWithDigit tyn then ty_num_prefix^tyn else tyn)
obua@17322
   521
  in
obua@17322
   522
    tyn'
obua@17322
   523
  end
obua@17322
   524
obua@17444
   525
fun protect_constname tcn = tcn 
obua@17444
   526
 (* if tcn = ".." then "dotdot"
obua@17444
   527
  else if tcn = "==" then "eqeq"
obua@17444
   528
  else tcn*)
obua@17322
   529
skalberg@14516
   530
structure TypeNet =
skalberg@14516
   531
struct
obua@17322
   532
skalberg@14516
   533
fun get_type_from_index thy thyname types is =
skalberg@14516
   534
    case Int.fromString is of
skalberg@14516
   535
	SOME i => (case Array.sub(types,i) of
skalberg@14516
   536
		       FullType ty => ty
skalberg@14516
   537
		     | XMLty xty =>
skalberg@14516
   538
		       let
skalberg@14516
   539
			   val ty = get_type_from_xml thy thyname types xty
skalberg@14516
   540
			   val _  = Array.update(types,i,FullType ty)
skalberg@14516
   541
		       in
skalberg@14516
   542
			   ty
skalberg@14516
   543
		       end)
skalberg@14516
   544
      | NONE => raise ERR "get_type_from_index" "Bad index"
skalberg@14516
   545
and get_type_from_xml thy thyname types =
skalberg@14516
   546
    let
skalberg@14516
   547
	fun gtfx (Elem("tyi",[("i",iS)],[])) =
skalberg@14516
   548
		 get_type_from_index thy thyname types iS
skalberg@14516
   549
	  | gtfx (Elem("tyc",atts,[])) =
skalberg@14516
   550
	    mk_thy_type thy
skalberg@14516
   551
			(get_segment thyname atts)
obua@17322
   552
			(protect_tyname (get_name atts))
skalberg@14516
   553
			[]
skalberg@14516
   554
	  | gtfx (Elem("tyv",[("n",s)],[])) = mk_vartype (protect_tyvarname s)
skalberg@14516
   555
	  | gtfx (Elem("tya",[],(Elem("tyc",atts,[]))::tys)) =
skalberg@14516
   556
	    mk_thy_type thy
skalberg@14516
   557
			(get_segment thyname atts)
obua@17322
   558
			(protect_tyname (get_name atts))
skalberg@14516
   559
			(map gtfx tys)
skalberg@14516
   560
	  | gtfx _ = raise ERR "get_type" "Bad type"
skalberg@14516
   561
    in
skalberg@14516
   562
	gtfx
skalberg@14516
   563
    end
skalberg@14516
   564
skalberg@14516
   565
fun input_types thyname (Elem("tylist",[("i",i)],xtys)) =
skalberg@14516
   566
    let
skalberg@14516
   567
	val types = Array.array(valOf (Int.fromString i),XMLty (Elem("",[],[])))
skalberg@14516
   568
	fun IT _ [] = ()
skalberg@14516
   569
	  | IT n (xty::xtys) =
skalberg@14516
   570
	    (Array.update(types,n,XMLty xty);
skalberg@14516
   571
	     IT (n+1) xtys)
skalberg@14516
   572
	val _ = IT 0 xtys
skalberg@14516
   573
    in
skalberg@14516
   574
	types
skalberg@14516
   575
    end
skalberg@14516
   576
  | input_types _ _ = raise ERR "input_types" "Bad type list"
skalberg@14516
   577
end
skalberg@14516
   578
skalberg@14516
   579
structure TermNet =
skalberg@14516
   580
struct
obua@17322
   581
skalberg@14516
   582
fun get_term_from_index thy thyname types terms is =
skalberg@14516
   583
    case Int.fromString is of
skalberg@14516
   584
	SOME i => (case Array.sub(terms,i) of
skalberg@14516
   585
		       FullTerm tm => tm
skalberg@14516
   586
		     | XMLtm xtm =>
skalberg@14516
   587
		       let
skalberg@14516
   588
			   val tm = get_term_from_xml thy thyname types terms xtm
skalberg@14516
   589
			   val _  = Array.update(terms,i,FullTerm tm)
skalberg@14516
   590
		       in
skalberg@14516
   591
			   tm
skalberg@14516
   592
		       end)
skalberg@14516
   593
      | NONE => raise ERR "get_term_from_index" "Bad index"
skalberg@14516
   594
and get_term_from_xml thy thyname types terms =
skalberg@14516
   595
    let
skalberg@15531
   596
	fun get_type [] = NONE
skalberg@15531
   597
	  | get_type [ty] = SOME (TypeNet.get_type_from_xml thy thyname types ty)
skalberg@14516
   598
	  | get_type _ = raise ERR "get_term" "Bad type"
skalberg@14516
   599
skalberg@14516
   600
	fun gtfx (Elem("tmv",[("n",name),("t",tyi)],[])) =
skalberg@14516
   601
	    mk_var(protect_varname name,TypeNet.get_type_from_index thy thyname types tyi)
skalberg@14516
   602
	  | gtfx (Elem("tmc",atts,[])) =
skalberg@14516
   603
	    let
skalberg@14516
   604
		val segment = get_segment thyname atts
obua@17440
   605
		val name = protect_constname(get_name atts)
skalberg@14516
   606
	    in
skalberg@14516
   607
		mk_thy_const thy segment name (TypeNet.get_type_from_index thy thyname types (Lib.assoc "t" atts))
skalberg@14516
   608
		handle PK _ => prim_mk_const thy segment name
skalberg@14516
   609
	    end
skalberg@14516
   610
	  | gtfx (Elem("tma",[("f",tmf),("a",tma)],[])) =
skalberg@14516
   611
	    let
skalberg@14516
   612
		val f = get_term_from_index thy thyname types terms tmf
skalberg@14516
   613
		val a = get_term_from_index thy thyname types terms tma
skalberg@14516
   614
	    in
skalberg@14516
   615
		mk_comb(f,a)
skalberg@14516
   616
	    end
obua@17440
   617
	  | gtfx (Elem("tml",[("x",tmx),("a",tma)],[])) = 
obua@17490
   618
	    let		
obua@17490
   619
                val x = get_term_from_index thy thyname types terms tmx 
obua@17490
   620
                val a = get_term_from_index thy thyname types terms tma
skalberg@14516
   621
	    in
obua@17440
   622
		mk_lambda x a
skalberg@14516
   623
	    end
skalberg@14516
   624
	  | gtfx (Elem("tmi",[("i",iS)],[])) =
skalberg@14516
   625
	    get_term_from_index thy thyname types terms iS
skalberg@14516
   626
	  | gtfx (Elem(tag,_,_)) =
skalberg@14516
   627
	    raise ERR "get_term" ("Not a term: "^tag)
skalberg@14516
   628
    in
skalberg@14516
   629
	gtfx
skalberg@14516
   630
    end
skalberg@14516
   631
skalberg@14516
   632
fun input_terms thyname types (Elem("tmlist",[("i",i)],xtms)) =
skalberg@14516
   633
    let
skalberg@14516
   634
	val terms = Array.array(valOf(Int.fromString i),XMLtm (Elem("",[],[])))
skalberg@14516
   635
skalberg@14516
   636
	fun IT _ [] = ()
skalberg@14516
   637
	  | IT n (xtm::xtms) =
skalberg@14516
   638
	    (Array.update(terms,n,XMLtm xtm);
skalberg@14516
   639
	     IT (n+1) xtms)
skalberg@14516
   640
	val _ = IT 0 xtms
skalberg@14516
   641
    in
skalberg@14516
   642
	terms
skalberg@14516
   643
    end
skalberg@14516
   644
  | input_terms _ _ _ = raise ERR "input_terms" "Bad term list"
skalberg@14516
   645
end
skalberg@14516
   646
skalberg@14516
   647
fun get_proof_dir (thyname:string) thy =
skalberg@14516
   648
    let
skalberg@14516
   649
	val import_segment =
skalberg@14516
   650
	    case get_segment2 thyname thy of
skalberg@15531
   651
		SOME seg => seg
skalberg@15531
   652
	      | NONE => get_import_segment thy
wenzelm@16427
   653
	val path = space_explode ":" (getenv "HOL4_PROOFS")
skalberg@15531
   654
	fun find [] = NONE
skalberg@14620
   655
	  | find (p::ps) =
skalberg@14620
   656
	    (let
skalberg@14620
   657
		 val dir = OS.Path.joinDirFile {dir = p,file=import_segment}
skalberg@14620
   658
	     in
skalberg@14620
   659
		 if OS.FileSys.isDir dir
skalberg@15531
   660
		 then SOME dir
skalberg@14620
   661
		 else find ps
skalberg@14620
   662
	     end) handle OS.SysErr _ => find ps
skalberg@14516
   663
    in
skalberg@15570
   664
	Option.map (fn p => OS.Path.joinDirFile {dir = p, file = thyname}) (find path)
skalberg@14516
   665
    end
skalberg@14516
   666
			   
skalberg@14516
   667
fun proof_file_name thyname thmname thy =
skalberg@14516
   668
    let
skalberg@14620
   669
	val path = case get_proof_dir thyname thy of
skalberg@15531
   670
		       SOME p => p
skalberg@15531
   671
		     | NONE => error "Cannot find proof files"
skalberg@14516
   672
	val _ = OS.FileSys.mkDir path handle OS.SysErr _ => ()
skalberg@14516
   673
    in
obua@17440
   674
	OS.Path.joinDirFile {dir = path, file = OS.Path.joinBaseExt {base = (unprotect_factname thmname), ext = SOME "prf"}}
skalberg@14516
   675
    end
skalberg@14516
   676
	
skalberg@14516
   677
fun xml_to_proof thyname types terms prf thy =
skalberg@14516
   678
    let
skalberg@14516
   679
	val xml_to_hol_type = TypeNet.get_type_from_xml thy thyname types
skalberg@14516
   680
	val xml_to_term = TermNet.get_term_from_xml thy thyname types terms
skalberg@14516
   681
skalberg@14516
   682
	fun index_to_term is =
skalberg@14516
   683
	    TermNet.get_term_from_index thy thyname types terms is
skalberg@14516
   684
skalberg@14516
   685
	fun x2p (Elem("prefl",[("i",is)],[])) = mk_proof (PRefl (index_to_term is))
skalberg@14516
   686
	  | x2p (Elem("pinstt",[],p::lambda)) =
skalberg@14516
   687
	    let
skalberg@14516
   688
		val p = x2p p
skalberg@14516
   689
		val lambda = implode_subst (map xml_to_hol_type lambda)
skalberg@14516
   690
	    in
skalberg@14516
   691
		mk_proof (PInstT(p,lambda))
skalberg@14516
   692
	    end
skalberg@14516
   693
	  | x2p (Elem("psubst",[("i",is)],prf::prfs)) =
skalberg@14516
   694
	    let
skalberg@14516
   695
		val tm = index_to_term is
skalberg@14516
   696
		val prf = x2p prf
skalberg@14516
   697
		val prfs = map x2p prfs
skalberg@14516
   698
	    in
skalberg@14516
   699
		mk_proof (PSubst(prfs,tm,prf))
skalberg@14516
   700
	    end
skalberg@14516
   701
	  | x2p (Elem("pabs",[("i",is)],[prf])) =
skalberg@14516
   702
	    let
skalberg@14516
   703
		val p = x2p prf
skalberg@14516
   704
		val t = index_to_term is
skalberg@14516
   705
	    in
skalberg@14516
   706
		mk_proof (PAbs (p,t))
skalberg@14516
   707
	    end
skalberg@14516
   708
	  | x2p (Elem("pdisch",[("i",is)],[prf])) =
skalberg@14516
   709
	    let
skalberg@14516
   710
		val p = x2p prf
skalberg@14516
   711
		val t = index_to_term is
skalberg@14516
   712
	    in
skalberg@14516
   713
		mk_proof (PDisch (p,t))
skalberg@14516
   714
	    end
skalberg@14516
   715
	  | x2p (Elem("pmp",[],[prf1,prf2])) =
skalberg@14516
   716
	    let
skalberg@14516
   717
		val p1 = x2p prf1
skalberg@14516
   718
		val p2 = x2p prf2
skalberg@14516
   719
	    in
skalberg@14516
   720
		mk_proof (PMp(p1,p2))
skalberg@14516
   721
	    end
skalberg@14516
   722
	  | x2p (Elem("phyp",[("i",is)],[])) = mk_proof (PHyp (index_to_term is))
skalberg@14516
   723
	  | x2p (Elem("paxiom",[("n",n),("i",is)],[])) =
skalberg@14516
   724
	    mk_proof (PAxm(n,index_to_term is))
skalberg@14516
   725
	  | x2p (Elem("pfact",atts,[])) =
skalberg@14516
   726
	    let
skalberg@14516
   727
		val thyname = get_segment thyname atts
obua@17440
   728
		val thmname = protect_factname (get_name atts)
skalberg@14516
   729
		val p = mk_proof PDisk
skalberg@14516
   730
		val _  = set_disk_info_of p thyname thmname
skalberg@14516
   731
	    in
skalberg@14516
   732
		p
skalberg@14516
   733
	    end
skalberg@14516
   734
	  | x2p (Elem("pdef",[("s",seg),("n",name),("i",is)],[])) =
obua@17440
   735
	    mk_proof (PDef(seg,protect_constname name,index_to_term is))
skalberg@14516
   736
	  | x2p (Elem("ptmspec",[("s",seg)],p::names)) =
skalberg@14516
   737
	    let
skalberg@14516
   738
		val names = map (fn Elem("name",[("n",name)],[]) => name
skalberg@14516
   739
				  | _ => raise ERR "x2p" "Bad proof (ptmspec)") names
skalberg@14516
   740
	    in
skalberg@14516
   741
		mk_proof (PTmSpec(seg,names,x2p p))
skalberg@14516
   742
	    end
skalberg@14516
   743
	  | x2p (Elem("ptyintro",[("s",seg),("n",name),("a",abs_name),("r",rep_name)],[xP,xt,p])) =
skalberg@14516
   744
	    let
skalberg@14516
   745
		val P = xml_to_term xP
skalberg@14516
   746
		val t = xml_to_term xt
skalberg@14516
   747
	    in
obua@17440
   748
		mk_proof (PTyIntro(seg,protect_tyname name,protect_constname abs_name,protect_constname rep_name,P,t,x2p p))
skalberg@14516
   749
	    end
skalberg@14516
   750
	  | x2p (Elem("ptydef",[("s",seg),("n",name)],[p])) =
obua@17322
   751
	    mk_proof (PTyDef(seg,protect_tyname name,x2p p))
skalberg@14516
   752
	  | x2p (xml as Elem("poracle",[],chldr)) =
skalberg@14516
   753
	    let
skalberg@14516
   754
		val (oracles,terms) = Library.partition (fn (Elem("oracle",_,_)) => true | _ => false) chldr
skalberg@14516
   755
		val ors = map (fn (Elem("oracle",[("n",name)],[])) => name | xml => raise ERR "x2p" "bad oracle") oracles
skalberg@14516
   756
		val (c,asl) = case terms of
skalberg@14516
   757
				  [] => raise ERR "x2p" "Bad oracle description"
skalberg@14516
   758
				| (hd::tl) => (hd,tl)
skalberg@15574
   759
		val tg = foldr (fn (oracle,tg) => Tag.merge (Tag.read oracle) tg) Tag.empty_tag ors
skalberg@14516
   760
	    in
skalberg@14516
   761
		mk_proof (POracle(tg,map xml_to_term asl,xml_to_term c))
skalberg@14516
   762
	    end
skalberg@14516
   763
	  | x2p (Elem("pspec",[("i",is)],[prf])) =
skalberg@14516
   764
	    let
skalberg@14516
   765
		val p = x2p prf
skalberg@14516
   766
		val tm = index_to_term is
skalberg@14516
   767
	    in
skalberg@14516
   768
		mk_proof (PSpec(p,tm))
skalberg@14516
   769
	    end
skalberg@14516
   770
	  | x2p (Elem("pinst",[],p::theta)) =
skalberg@14516
   771
	    let
skalberg@14516
   772
		val p = x2p p
skalberg@14516
   773
		val theta = implode_subst (map xml_to_term theta)
skalberg@14516
   774
	    in
skalberg@14516
   775
		mk_proof (PInst(p,theta))
skalberg@14516
   776
	    end
skalberg@14516
   777
	  | x2p (Elem("pgen",[("i",is)],[prf])) =
skalberg@14516
   778
	    let
skalberg@14516
   779
		val p = x2p prf
skalberg@14516
   780
		val tm = index_to_term is
skalberg@14516
   781
	    in
skalberg@14516
   782
		mk_proof (PGen(p,tm))
skalberg@14516
   783
	    end
skalberg@14516
   784
	  | x2p (Elem("pgenabs",[],prf::tms)) =
skalberg@14516
   785
	    let
skalberg@14516
   786
		val p = x2p prf
skalberg@14516
   787
		val tml = map xml_to_term tms
skalberg@14516
   788
	    in
skalberg@15531
   789
		mk_proof (PGenAbs(p,NONE,tml))
skalberg@14516
   790
	    end
skalberg@14516
   791
	  | x2p (Elem("pgenabs",[("i",is)],prf::tms)) =
skalberg@14516
   792
	    let
skalberg@14516
   793
		val p = x2p prf
skalberg@14516
   794
		val tml = map xml_to_term tms
skalberg@14516
   795
	    in
skalberg@15531
   796
		mk_proof (PGenAbs(p,SOME (index_to_term is),tml))
skalberg@14516
   797
	    end
skalberg@14516
   798
	  | x2p (Elem("pimpas",[],[prf1,prf2])) =
skalberg@14516
   799
	    let
skalberg@14516
   800
		val p1 = x2p prf1
skalberg@14516
   801
		val p2 = x2p prf2
skalberg@14516
   802
	    in
skalberg@14516
   803
		mk_proof (PImpAS(p1,p2))
skalberg@14516
   804
	    end
skalberg@14516
   805
	  | x2p (Elem("psym",[],[prf])) =
skalberg@14516
   806
	    let
skalberg@14516
   807
		val p = x2p prf
skalberg@14516
   808
	    in
skalberg@14516
   809
		mk_proof (PSym p)
skalberg@14516
   810
	    end
skalberg@14516
   811
	  | x2p (Elem("ptrans",[],[prf1,prf2])) =
skalberg@14516
   812
	    let
skalberg@14516
   813
		val p1 = x2p prf1
skalberg@14516
   814
		val p2 = x2p prf2
skalberg@14516
   815
	    in
skalberg@14516
   816
		mk_proof (PTrans(p1,p2))
skalberg@14516
   817
	    end
skalberg@14516
   818
	  | x2p (Elem("pcomb",[],[prf1,prf2])) =
skalberg@14516
   819
	    let
skalberg@14516
   820
		val p1 = x2p prf1
skalberg@14516
   821
		val p2 = x2p prf2
skalberg@14516
   822
	    in
skalberg@14516
   823
		mk_proof (PComb(p1,p2))
skalberg@14516
   824
	    end
skalberg@14516
   825
	  | x2p (Elem("peqmp",[],[prf1,prf2])) =
skalberg@14516
   826
	    let
skalberg@14516
   827
		val p1 = x2p prf1
skalberg@14516
   828
		val p2 = x2p prf2
skalberg@14516
   829
	    in
skalberg@14516
   830
		mk_proof (PEqMp(p1,p2))
skalberg@14516
   831
	    end
skalberg@14516
   832
	  | x2p (Elem("peqimp",[],[prf])) =
skalberg@14516
   833
	    let
skalberg@14516
   834
		val p = x2p prf
skalberg@14516
   835
	    in
skalberg@14516
   836
		mk_proof (PEqImp p)
skalberg@14516
   837
	    end
skalberg@14516
   838
	  | x2p (Elem("pexists",[("e",ise),("w",isw)],[prf])) =
skalberg@14516
   839
	    let
skalberg@14516
   840
		val p = x2p prf
skalberg@14516
   841
		val ex = index_to_term ise
skalberg@14516
   842
		val w = index_to_term isw
skalberg@14516
   843
	    in
skalberg@14516
   844
		mk_proof (PExists(p,ex,w))
skalberg@14516
   845
	    end
skalberg@14516
   846
	  | x2p (Elem("pchoose",[("i",is)],[prf1,prf2])) =
skalberg@14516
   847
	    let
skalberg@14516
   848
		val v  = index_to_term is
skalberg@14516
   849
		val p1 = x2p prf1
skalberg@14516
   850
		val p2 = x2p prf2
skalberg@14516
   851
	    in
skalberg@14516
   852
		mk_proof (PChoose(v,p1,p2))
skalberg@14516
   853
	    end
skalberg@14516
   854
	  | x2p (Elem("pconj",[],[prf1,prf2])) =
skalberg@14516
   855
	    let
skalberg@14516
   856
		val p1 = x2p prf1
skalberg@14516
   857
		val p2 = x2p prf2
skalberg@14516
   858
	    in
skalberg@14516
   859
		mk_proof (PConj(p1,p2))
skalberg@14516
   860
	    end
skalberg@14516
   861
	  | x2p (Elem("pconjunct1",[],[prf])) =
skalberg@14516
   862
	    let
skalberg@14516
   863
		val p = x2p prf
skalberg@14516
   864
	    in
skalberg@14516
   865
		mk_proof (PConjunct1 p)
skalberg@14516
   866
	    end
skalberg@14516
   867
	  | x2p (Elem("pconjunct2",[],[prf])) =
skalberg@14516
   868
	    let
skalberg@14516
   869
		val p = x2p prf
skalberg@14516
   870
	    in
skalberg@14516
   871
		mk_proof (PConjunct2 p)
skalberg@14516
   872
	    end
skalberg@14516
   873
	  | x2p (Elem("pdisj1",[("i",is)],[prf])) =
skalberg@14516
   874
	    let
skalberg@14516
   875
		val p = x2p prf
skalberg@14516
   876
		val t = index_to_term is
skalberg@14516
   877
	    in
skalberg@14516
   878
		mk_proof (PDisj1 (p,t))
skalberg@14516
   879
	    end
skalberg@14516
   880
	  | x2p (Elem("pdisj2",[("i",is)],[prf])) =
skalberg@14516
   881
	    let
skalberg@14516
   882
		val p = x2p prf
skalberg@14516
   883
		val t = index_to_term is
skalberg@14516
   884
	    in
skalberg@14516
   885
		mk_proof (PDisj2 (p,t))
skalberg@14516
   886
	    end
skalberg@14516
   887
	  | x2p (Elem("pdisjcases",[],[prf1,prf2,prf3])) =
skalberg@14516
   888
	    let
skalberg@14516
   889
		val p1 = x2p prf1
skalberg@14516
   890
		val p2 = x2p prf2
skalberg@14516
   891
		val p3 = x2p prf3
skalberg@14516
   892
	    in
skalberg@14516
   893
		mk_proof (PDisjCases(p1,p2,p3))
skalberg@14516
   894
	    end
skalberg@14516
   895
	  | x2p (Elem("pnoti",[],[prf])) =
skalberg@14516
   896
	    let
skalberg@14516
   897
		val p = x2p prf
skalberg@14516
   898
	    in
skalberg@14516
   899
		mk_proof (PNotI p)
skalberg@14516
   900
	    end
skalberg@14516
   901
	  | x2p (Elem("pnote",[],[prf])) =
skalberg@14516
   902
	    let
skalberg@14516
   903
		val p = x2p prf
skalberg@14516
   904
	    in
skalberg@14516
   905
		mk_proof (PNotE p)
skalberg@14516
   906
	    end
skalberg@14516
   907
	  | x2p (Elem("pcontr",[("i",is)],[prf])) =
skalberg@14516
   908
	    let
skalberg@14516
   909
		val p = x2p prf
skalberg@14516
   910
		val t = index_to_term is
skalberg@14516
   911
	    in
skalberg@14516
   912
		mk_proof (PContr (p,t))
skalberg@14516
   913
	    end
skalberg@14516
   914
	  | x2p xml = raise ERR "x2p" "Bad proof"
skalberg@14516
   915
    in
skalberg@14516
   916
	x2p prf
skalberg@14516
   917
    end
skalberg@14516
   918
obua@17322
   919
fun import_proof_concl thyname thmname thy = 
obua@17322
   920
    let
obua@17322
   921
	val is = TextIO.openIn(proof_file_name thyname thmname thy)
obua@17322
   922
	val (proof_xml,_) = scan_tag (LazySeq.of_instream is)
obua@17322
   923
	val _ = TextIO.closeIn is
obua@17322
   924
    in 
obua@17322
   925
	case proof_xml of
obua@17322
   926
	    Elem("proof",[],xtypes::xterms::prf::rest) =>
obua@17322
   927
	    let
obua@17322
   928
		val types = TypeNet.input_types thyname xtypes
obua@17322
   929
		val terms = TermNet.input_terms thyname types xterms
obua@17322
   930
                fun f xtm thy = TermNet.get_term_from_xml thy thyname types terms xtm               
obua@17322
   931
	    in
obua@17322
   932
		case rest of
obua@17322
   933
		    [] => NONE
obua@17322
   934
		  | [xtm] => SOME (f xtm)
obua@17322
   935
		  | _ => raise ERR "import_proof" "Bad argument list"
obua@17322
   936
	    end
obua@17322
   937
	  | _ => raise ERR "import_proof" "Bad proof"
obua@17322
   938
    end
obua@17322
   939
skalberg@14516
   940
fun import_proof thyname thmname thy =
skalberg@14516
   941
    let
skalberg@14516
   942
	val is = TextIO.openIn(proof_file_name thyname thmname thy)
skalberg@14516
   943
	val (proof_xml,_) = scan_tag (LazySeq.of_instream is)
skalberg@14516
   944
	val _ = TextIO.closeIn is
obua@17322
   945
    in 
skalberg@14516
   946
	case proof_xml of
skalberg@14516
   947
	    Elem("proof",[],xtypes::xterms::prf::rest) =>
skalberg@14516
   948
	    let
skalberg@14516
   949
		val types = TypeNet.input_types thyname xtypes
skalberg@14516
   950
		val terms = TermNet.input_terms thyname types xterms
skalberg@14516
   951
	    in
skalberg@14516
   952
		(case rest of
skalberg@15531
   953
		     [] => NONE
skalberg@15531
   954
		   | [xtm] => SOME (fn thy => TermNet.get_term_from_xml thy thyname types terms xtm)
skalberg@14516
   955
		   | _ => raise ERR "import_proof" "Bad argument list",
skalberg@14516
   956
		 xml_to_proof thyname types terms prf)
skalberg@14516
   957
	    end
skalberg@14516
   958
	  | _ => raise ERR "import_proof" "Bad proof"
skalberg@14516
   959
    end
skalberg@14516
   960
skalberg@14516
   961
fun uniq_compose m th i st =
skalberg@14516
   962
    let
skalberg@14516
   963
	val res = bicompose false (false,th,m) i st
skalberg@14516
   964
    in
skalberg@14516
   965
	case Seq.pull res of
skalberg@15531
   966
	    SOME (th,rest) => (case Seq.pull rest of
skalberg@15531
   967
				   SOME _ => raise ERR "uniq_compose" "Not unique!"
skalberg@15531
   968
				 | NONE => th)
skalberg@15531
   969
	  | NONE => raise ERR "uniq_compose" "No result"
skalberg@14516
   970
    end
skalberg@14516
   971
skalberg@14516
   972
val reflexivity_thm = thm "refl"
skalberg@14516
   973
val substitution_thm = thm "subst"
skalberg@14516
   974
val mp_thm = thm "mp"
skalberg@14516
   975
val imp_antisym_thm = thm "light_imp_as"
skalberg@14516
   976
val disch_thm = thm "impI"
skalberg@14516
   977
val ccontr_thm = thm "ccontr"
skalberg@14516
   978
skalberg@14516
   979
val meta_eq_to_obj_eq_thm = thm "meta_eq_to_obj_eq"
skalberg@14516
   980
skalberg@14516
   981
val gen_thm = thm "HOLallI"
skalberg@14516
   982
val choose_thm = thm "exE"
skalberg@14516
   983
val exists_thm = thm "exI"
skalberg@14516
   984
val conj_thm = thm "conjI"
skalberg@14516
   985
val conjunct1_thm = thm "conjunct1"
skalberg@14516
   986
val conjunct2_thm = thm "conjunct2"
skalberg@14516
   987
val spec_thm = thm "spec"
skalberg@14516
   988
val disj_cases_thm = thm "disjE"
skalberg@14516
   989
val disj1_thm = thm "disjI1"
skalberg@14516
   990
val disj2_thm = thm "disjI2"
skalberg@14516
   991
skalberg@14516
   992
local
skalberg@14516
   993
    val th = thm "not_def"
wenzelm@17894
   994
    val thy = theory_of_thm th
wenzelm@17894
   995
    val pp = reflexive (cterm_of thy (Const("Trueprop",boolT-->propT)))
skalberg@14516
   996
in
skalberg@14516
   997
val not_elim_thm = combination pp th
skalberg@14516
   998
end
skalberg@14516
   999
skalberg@14516
  1000
val not_intro_thm = symmetric not_elim_thm
skalberg@14516
  1001
val abs_thm = thm "ext"
skalberg@14516
  1002
val trans_thm = thm "trans"
skalberg@14516
  1003
val symmetry_thm = thm "sym"
skalberg@14516
  1004
val transitivity_thm = thm "trans"
skalberg@14516
  1005
val eqmp_thm = thm "iffD1"
skalberg@14516
  1006
val eqimp_thm = thm "HOL4Setup.eq_imp"
skalberg@14516
  1007
val comb_thm = thm "cong"
skalberg@14516
  1008
skalberg@14516
  1009
(* Beta-eta normalizes a theorem (only the conclusion, not the *
skalberg@14516
  1010
hypotheses!)  *)
skalberg@14516
  1011
skalberg@14516
  1012
fun beta_eta_thm th =
skalberg@14516
  1013
    let
skalberg@14516
  1014
	val th1 = Thm.equal_elim (Thm.beta_conversion true (cprop_of th))  th
skalberg@14516
  1015
	val th2 = Thm.equal_elim (Thm.eta_conversion       (cprop_of th1)) th1
skalberg@14516
  1016
    in
skalberg@14516
  1017
	th2
skalberg@14516
  1018
    end
skalberg@14516
  1019
skalberg@14516
  1020
fun implies_elim_all th =
skalberg@15570
  1021
    Library.foldl (fn (th,p) => implies_elim th (assume p)) (th,cprems_of th)
skalberg@14516
  1022
skalberg@14516
  1023
fun norm_hyps th =
skalberg@14516
  1024
    th |> beta_eta_thm
skalberg@14516
  1025
       |> implies_elim_all
skalberg@14516
  1026
       |> implies_intr_hyps
skalberg@14516
  1027
skalberg@14516
  1028
fun mk_GEN v th sg =
skalberg@14516
  1029
    let
skalberg@14516
  1030
	val c = HOLogic.dest_Trueprop (concl_of th)
skalberg@14516
  1031
	val cv = cterm_of sg v
skalberg@14516
  1032
	val lc = Term.lambda v c
skalberg@14516
  1033
	val clc = Thm.cterm_of sg lc
skalberg@14516
  1034
	val cvty = ctyp_of_term cv
skalberg@14516
  1035
	val th1 = implies_elim_all th
skalberg@14516
  1036
	val th2 = beta_eta_thm (forall_intr cv th1)
skalberg@15531
  1037
	val th3 = th2 COMP (beta_eta_thm (Drule.instantiate' [SOME cvty] [SOME clc] gen_thm))
skalberg@14516
  1038
	val c = prop_of th3
skalberg@14516
  1039
	val vname = fst(dest_Free v)
skalberg@14516
  1040
	val (cold,cnew) = case c of
skalberg@14516
  1041
			      tpc $ (Const("All",allT) $ Abs(oldname,ty,body)) =>
skalberg@14516
  1042
			      (Abs(oldname,dummyT,Bound 0),Abs(vname,dummyT,Bound 0))
skalberg@14516
  1043
			    | tpc $ (Const("All",allT) $ rest) => (tpc,tpc)
skalberg@14516
  1044
			    | _ => raise ERR "mk_GEN" "Unknown conclusion"
skalberg@14516
  1045
	val th4 = Thm.rename_boundvars cold cnew th3
skalberg@14516
  1046
	val res = implies_intr_hyps th4
skalberg@14516
  1047
    in
skalberg@14516
  1048
	res
skalberg@14516
  1049
    end
skalberg@14516
  1050
obua@19064
  1051
val permute_prems = Thm.permute_prems 
skalberg@14516
  1052
skalberg@14516
  1053
fun rearrange sg tm th =
skalberg@14516
  1054
    let
wenzelm@18929
  1055
	val tm' = Envir.beta_eta_contract tm
obua@19066
  1056
	fun find []      n = permute_prems 0 1 (implies_intr (Thm.cterm_of sg tm) th)
wenzelm@18929
  1057
	  | find (p::ps) n = if tm' aconv (Envir.beta_eta_contract p)
obua@19066
  1058
			     then permute_prems n 1 th
skalberg@14516
  1059
			     else find ps (n+1)
skalberg@14516
  1060
    in
skalberg@14516
  1061
	find (prems_of th) 0
skalberg@14516
  1062
    end
skalberg@14516
  1063
skalberg@14516
  1064
fun zip (x::xs) (y::ys) = (x,y)::(zip xs ys)
skalberg@14516
  1065
  | zip [] [] = []
skalberg@14516
  1066
  | zip _ _ = raise ERR "zip" "arguments not of same length"
skalberg@14516
  1067
skalberg@14516
  1068
fun mk_INST dom rng th =
skalberg@14516
  1069
    th |> forall_intr_list dom
skalberg@14516
  1070
       |> forall_elim_list rng
skalberg@14516
  1071
skalberg@14516
  1072
val collect_vars =
skalberg@14516
  1073
    let
skalberg@14516
  1074
	fun F vars (Bound _) = vars
skalberg@14516
  1075
	  | F vars (tm as Free _) =
skalberg@14516
  1076
	    if tm mem vars
skalberg@14516
  1077
	    then vars
skalberg@14516
  1078
	    else (tm::vars)
skalberg@14516
  1079
	  | F vars (Const _) = vars
skalberg@14516
  1080
	  | F vars (tm1 $ tm2) = F (F vars tm1) tm2
skalberg@14516
  1081
	  | F vars (Abs(_,_,body)) = F vars body
skalberg@14516
  1082
	  | F vars (Var _) = raise ERR "collect_vars" "Schematic variable found"
skalberg@14516
  1083
    in
skalberg@14516
  1084
	F []
skalberg@14516
  1085
    end
skalberg@14516
  1086
skalberg@14516
  1087
(* Code for disambiguating variablenames (wrt. types) *)
skalberg@14516
  1088
skalberg@14516
  1089
val disamb_info_empty = {vars=[],rens=[]}
skalberg@14516
  1090
skalberg@14516
  1091
fun rens_of {vars,rens} = rens
skalberg@14516
  1092
skalberg@14516
  1093
fun name_of_var (Free(vname,_)) = vname
skalberg@14516
  1094
  | name_of_var _ = raise ERR "name_of_var" "Not a variable"
skalberg@14516
  1095
obua@17322
  1096
fun disamb_term_from info tm = (info, tm)
skalberg@14516
  1097
skalberg@14516
  1098
fun swap (x,y) = (y,x)
skalberg@14516
  1099
obua@17322
  1100
fun has_ren (HOLThm _) = false
skalberg@14516
  1101
skalberg@14516
  1102
fun prinfo {vars,rens} = (writeln "Vars:";
skalberg@14516
  1103
			  app prin vars;
skalberg@14516
  1104
			  writeln "Renaming:";
skalberg@14516
  1105
			  app (fn(x,y)=>(prin x; writeln " -->"; prin y)) rens)
skalberg@14516
  1106
obua@17322
  1107
fun disamb_thm_from info (HOLThm (_,thm)) = (info, thm)
skalberg@14516
  1108
obua@17322
  1109
fun disamb_terms_from info tms = (info, tms)
skalberg@14516
  1110
obua@17324
  1111
fun disamb_thms_from info hthms = (info, map hthm2thm hthms)
skalberg@14516
  1112
skalberg@14516
  1113
fun disamb_term tm   = disamb_term_from disamb_info_empty tm
skalberg@14516
  1114
fun disamb_terms tms = disamb_terms_from disamb_info_empty tms
skalberg@14516
  1115
fun disamb_thm thm   = disamb_thm_from disamb_info_empty thm
skalberg@14516
  1116
fun disamb_thms thms = disamb_thms_from disamb_info_empty thms
skalberg@14516
  1117
obua@17322
  1118
fun norm_hthm sg (hth as HOLThm _) = hth
skalberg@14516
  1119
skalberg@14516
  1120
(* End of disambiguating code *)
skalberg@14516
  1121
wenzelm@17657
  1122
fun disambiguate_frees thm =
wenzelm@17657
  1123
    let
wenzelm@17657
  1124
      fun ERR s = error ("Drule.disambiguate_frees: "^s)
wenzelm@17657
  1125
      val ct = cprop_of thm
wenzelm@17657
  1126
      val t = term_of ct
wenzelm@17657
  1127
      val thy = theory_of_cterm ct
wenzelm@17657
  1128
      val frees = term_frees t
wenzelm@17657
  1129
      val freenames = add_term_free_names (t, [])
wenzelm@17657
  1130
      fun is_old_name n = n mem_string freenames
wenzelm@17657
  1131
      fun name_of (Free (n, _)) = n
wenzelm@17657
  1132
        | name_of _ = ERR "name_of"
wenzelm@17657
  1133
      fun new_name' bump map n =
wenzelm@17657
  1134
          let val n' = n^bump in
wenzelm@17657
  1135
            if is_old_name n' orelse Symtab.lookup map n' <> NONE then 
wenzelm@17657
  1136
              new_name' (Symbol.bump_string bump) map n
wenzelm@17657
  1137
            else
wenzelm@17657
  1138
              n'
wenzelm@17657
  1139
          end              
wenzelm@17657
  1140
      val new_name = new_name' "a"
wenzelm@17657
  1141
      fun replace_name n' (Free (n, t)) = Free (n', t)
wenzelm@17657
  1142
        | replace_name n' _ = ERR "replace_name"
obua@19064
  1143
      (* map: old or fresh name -> old free, 
wenzelm@17657
  1144
         invmap: old free which has fresh name assigned to it -> fresh name *)
wenzelm@17657
  1145
      fun dis (v, mapping as (map,invmap)) =
wenzelm@17657
  1146
          let val n = name_of v in
wenzelm@17657
  1147
            case Symtab.lookup map n of
wenzelm@17657
  1148
              NONE => (Symtab.update (n, v) map, invmap)
wenzelm@17657
  1149
            | SOME v' => 
wenzelm@17657
  1150
              if v=v' then 
wenzelm@17657
  1151
                mapping 
wenzelm@17657
  1152
              else
wenzelm@17657
  1153
                let val n' = new_name map n in
wenzelm@17657
  1154
                  (Symtab.update (n', v) map, 
wenzelm@17657
  1155
                   Termtab.update (v, n') invmap)
wenzelm@17657
  1156
                end
wenzelm@17657
  1157
          end
wenzelm@17657
  1158
    in
wenzelm@17657
  1159
      if (length freenames = length frees) then
wenzelm@17657
  1160
        thm
wenzelm@17657
  1161
      else
wenzelm@17657
  1162
        let 
wenzelm@17657
  1163
          val (_, invmap) = 
wenzelm@17657
  1164
              List.foldl dis (Symtab.empty, Termtab.empty) frees 
wenzelm@17657
  1165
          fun make_subst ((oldfree, newname), (intros, elims)) =
wenzelm@17657
  1166
              (cterm_of thy oldfree :: intros, 
wenzelm@17657
  1167
               cterm_of thy (replace_name newname oldfree) :: elims)
wenzelm@17657
  1168
          val (intros, elims) = List.foldl make_subst ([], []) (Termtab.dest invmap)
wenzelm@17657
  1169
        in 
wenzelm@17657
  1170
          forall_elim_list elims (forall_intr_list intros thm)
wenzelm@17657
  1171
        end     
wenzelm@17657
  1172
    end
wenzelm@17657
  1173
skalberg@14516
  1174
val debug = ref false
skalberg@14516
  1175
skalberg@14516
  1176
fun if_debug f x = if !debug then f x else ()
skalberg@14516
  1177
val message = if_debug writeln
skalberg@14516
  1178
obua@19064
  1179
val conjE_helper = permute_prems 0 1 conjE
skalberg@14516
  1180
skalberg@14516
  1181
fun get_hol4_thm thyname thmname thy =
skalberg@14516
  1182
    case get_hol4_theorem thyname thmname thy of
skalberg@15531
  1183
	SOME hth => SOME (HOLThm hth)
skalberg@15531
  1184
      | NONE => 
skalberg@14516
  1185
	let
skalberg@14516
  1186
	    val pending = HOL4Pending.get thy
skalberg@14516
  1187
	in
wenzelm@17412
  1188
	    case StringPair.lookup pending (thyname,thmname) of
skalberg@15531
  1189
		SOME hth => SOME (HOLThm hth)
skalberg@15531
  1190
	      | NONE => NONE
skalberg@14516
  1191
	end
skalberg@14516
  1192
skalberg@14516
  1193
fun non_trivial_term_consts tm =
skalberg@15570
  1194
    List.filter (fn c => not (c = "Trueprop" orelse
skalberg@14516
  1195
			 c = "All" orelse
skalberg@14516
  1196
			 c = "op -->" orelse
skalberg@14516
  1197
			 c = "op &" orelse
skalberg@14516
  1198
			 c = "op =")) (Term.term_consts tm) 
skalberg@14516
  1199
skalberg@14516
  1200
fun match_consts t (* th *) =
skalberg@14516
  1201
    let
skalberg@14516
  1202
	fun add_consts (Const (c, _), cs) =
skalberg@14516
  1203
	    (case c of
skalberg@14516
  1204
		 "op =" => "==" ins_string cs
skalberg@14516
  1205
	       | "op -->" => "==>" ins_string cs
skalberg@14516
  1206
	       | "All" => cs
skalberg@14516
  1207
	       | "all" => cs
skalberg@14516
  1208
	       | "op &" => cs
skalberg@14516
  1209
	       | "Trueprop" => cs
skalberg@14516
  1210
	       | _ => c ins_string cs)
skalberg@14516
  1211
	  | add_consts (t $ u, cs) = add_consts (t, add_consts (u, cs))
skalberg@14516
  1212
	  | add_consts (Abs (_, _, t), cs) = add_consts (t, cs)
skalberg@14516
  1213
	  | add_consts (_, cs) = cs
skalberg@14516
  1214
	val t_consts = add_consts(t,[])
skalberg@14516
  1215
    in
skalberg@14516
  1216
	fn th => eq_set(t_consts,add_consts(prop_of th,[]))
skalberg@14516
  1217
    end
skalberg@14516
  1218
skalberg@14516
  1219
fun split_name str =
skalberg@14516
  1220
    let
paulson@18489
  1221
	val sub = Substring.full str
skalberg@14516
  1222
	val (f,idx) = apsnd Substring.string (Substring.splitr Char.isDigit sub)
skalberg@14516
  1223
	val (newstr,u) = apboth Substring.string (Substring.splitr (fn c => c = #"_") f)
skalberg@14516
  1224
    in
skalberg@14516
  1225
	if not (idx = "") andalso u = "_"
skalberg@15531
  1226
	then SOME (newstr,valOf(Int.fromString idx))
skalberg@15531
  1227
	else NONE
skalberg@14516
  1228
    end
skalberg@15531
  1229
    handle _ => NONE
skalberg@14516
  1230
skalberg@14516
  1231
fun rewrite_hol4_term t thy =
skalberg@14516
  1232
    let
wenzelm@17894
  1233
	val hol4rews1 = map (Thm.transfer thy) (HOL4Rewrites.get thy)
wenzelm@17894
  1234
	val hol4ss = Simplifier.theory_context thy empty_ss
wenzelm@17894
  1235
          setmksimps single addsimps hol4rews1
skalberg@14516
  1236
    in
wenzelm@17894
  1237
	Thm.transfer thy (Simplifier.full_rewrite hol4ss (cterm_of thy t))
skalberg@14516
  1238
    end
skalberg@14516
  1239
skalberg@14516
  1240
fun get_isabelle_thm thyname thmname hol4conc thy =
skalberg@14516
  1241
    let
skalberg@14516
  1242
	val (info,hol4conc') = disamb_term hol4conc
skalberg@14516
  1243
	val i2h_conc = symmetric (rewrite_hol4_term (HOLogic.mk_Trueprop hol4conc') thy)
skalberg@14516
  1244
	val isaconc =
skalberg@14516
  1245
	    case concl_of i2h_conc of
skalberg@14516
  1246
		Const("==",_) $ lhs $ _ => lhs
skalberg@14516
  1247
	      | _ => error "get_isabelle_thm" "Bad rewrite rule"
skalberg@14516
  1248
	val _ = (message "Original conclusion:";
skalberg@14516
  1249
		 if_debug prin hol4conc';
skalberg@14516
  1250
		 message "Modified conclusion:";
skalberg@14516
  1251
		 if_debug prin isaconc)
skalberg@14516
  1252
skalberg@14516
  1253
	fun mk_res th = HOLThm(rens_of info,equal_elim i2h_conc th)
skalberg@14516
  1254
    in
skalberg@14516
  1255
	case get_hol4_mapping thyname thmname thy of
skalberg@15531
  1256
	    SOME (SOME thmname) =>
skalberg@14516
  1257
	    let
wenzelm@18678
  1258
		val th1 = (SOME (PureThy.get_thm thy (Name thmname))
wenzelm@18678
  1259
			   handle ERROR _ =>
skalberg@14516
  1260
				  (case split_name thmname of
wenzelm@16486
  1261
				       SOME (listname,idx) => (SOME (List.nth(PureThy.get_thms thy (Name listname),idx-1))
skalberg@15531
  1262
							       handle _ => NONE)
skalberg@15531
  1263
				     | NONE => NONE))
skalberg@14516
  1264
	    in
skalberg@14516
  1265
		case th1 of
skalberg@15531
  1266
		    SOME th2 =>
skalberg@14516
  1267
		    (case Shuffler.set_prop thy isaconc [(thmname,th2)] of
skalberg@15531
  1268
			 SOME (_,th) => (message "YES";(thy, SOME (mk_res th)))
skalberg@15531
  1269
		       | NONE => (message "NO2";error "get_isabelle_thm" "Bad mapping"))
skalberg@15531
  1270
		  | NONE => (message "NO1";error "get_isabelle_thm" "Bad mapping")
skalberg@14516
  1271
	    end
skalberg@15531
  1272
	  | SOME NONE => error ("Trying to access ignored theorem " ^ thmname)
skalberg@15531
  1273
	  | NONE =>
obua@17607
  1274
	    let		
obua@17626
  1275
		val _ = (message "Looking for conclusion:";
skalberg@14516
  1276
			 if_debug prin isaconc)
skalberg@14516
  1277
		val cs = non_trivial_term_consts isaconc
obua@17626
  1278
		val _ = (message "Looking for consts:";
obua@17630
  1279
			 message (commas cs))
skalberg@14516
  1280
		val pot_thms = Shuffler.find_potential thy isaconc
obua@17626
  1281
		val _ = message ((Int.toString (length pot_thms)) ^ " potential theorems")
skalberg@14516
  1282
	    in
skalberg@14516
  1283
		case Shuffler.set_prop thy isaconc pot_thms of
skalberg@15531
  1284
		    SOME (isaname,th) =>
skalberg@14516
  1285
		    let
skalberg@14516
  1286
			val hth as HOLThm args = mk_res th
skalberg@14516
  1287
			val thy' =  thy |> add_hol4_theorem thyname thmname args
skalberg@14516
  1288
					|> add_hol4_mapping thyname thmname isaname
obua@19064
  1289
			val _ = ImportRecorder.add_hol_theorem thyname thmname (snd args)
obua@19064
  1290
			val _ = ImportRecorder.add_hol_mapping thyname thmname isaname
skalberg@14516
  1291
		    in
skalberg@15531
  1292
			(thy',SOME hth)
skalberg@14516
  1293
		    end
skalberg@15531
  1294
		  | NONE => (thy,NONE)
skalberg@14516
  1295
	    end
skalberg@14516
  1296
    end
skalberg@15647
  1297
    handle e => (message "Exception in get_isabelle_thm"; if_debug print_exn e handle _ => (); (thy,NONE))
skalberg@14516
  1298
obua@17322
  1299
fun get_isabelle_thm_and_warn thyname thmname hol4conc thy =
obua@17322
  1300
  let
obua@17322
  1301
    val (a, b) = get_isabelle_thm thyname thmname hol4conc thy
obua@17322
  1302
    fun warn () =
obua@17322
  1303
        let
obua@17322
  1304
	    val (info,hol4conc') = disamb_term hol4conc
obua@17322
  1305
	    val i2h_conc = symmetric (rewrite_hol4_term (HOLogic.mk_Trueprop hol4conc') thy)
obua@17322
  1306
	in
obua@17322
  1307
	    case concl_of i2h_conc of
obua@17322
  1308
		Const("==",_) $ lhs $ _ => 
obua@17322
  1309
		(warning ("Failed lookup of theorem '"^thmname^"':");
obua@17322
  1310
	         writeln "Original conclusion:";
obua@17322
  1311
		 prin hol4conc';
obua@17322
  1312
		 writeln "Modified conclusion:";
obua@17322
  1313
		 prin lhs)
obua@17322
  1314
	      | _ => ()
obua@17322
  1315
	end
obua@17322
  1316
  in
obua@17322
  1317
      case b of 
obua@17594
  1318
	  NONE => (warn () handle _ => (); (a,b))
obua@17594
  1319
	| _ => (a, b)
obua@17322
  1320
  end 
obua@17322
  1321
skalberg@14516
  1322
fun get_thm thyname thmname thy =
skalberg@14516
  1323
    case get_hol4_thm thyname thmname thy of
obua@17594
  1324
	SOME hth => (thy,SOME hth)
obua@17322
  1325
      | NONE => ((case import_proof_concl thyname thmname thy of
obua@17322
  1326
		      SOME f => get_isabelle_thm_and_warn thyname thmname (f thy) thy
skalberg@15647
  1327
		    | NONE => (message "No conclusion"; (thy,NONE)))
skalberg@15647
  1328
		 handle e as IO.Io _ => (message "IO exception"; (thy,NONE))
skalberg@15647
  1329
		      | e as PK _ => (message "PK exception"; (thy,NONE)))
skalberg@14516
  1330
skalberg@14516
  1331
fun rename_const thyname thy name =
skalberg@14516
  1332
    case get_hol4_const_renaming thyname name thy of
skalberg@15531
  1333
	SOME cname => cname
skalberg@15531
  1334
      | NONE => name
skalberg@14516
  1335
skalberg@14516
  1336
fun get_def thyname constname rhs thy =
skalberg@14516
  1337
    let
skalberg@14516
  1338
	val constname = rename_const thyname thy constname
skalberg@14516
  1339
	val (thmname,thy') = get_defname thyname constname thy
skalberg@14516
  1340
	val _ = message ("Looking for definition " ^ thyname ^ "." ^ thmname)
skalberg@14516
  1341
    in
obua@17322
  1342
	get_isabelle_thm_and_warn thyname thmname (mk_teq (thyname ^ "." ^ constname) rhs thy') thy'
skalberg@14516
  1343
    end
skalberg@14516
  1344
skalberg@14516
  1345
fun get_axiom thyname axname thy =
skalberg@14516
  1346
    case get_thm thyname axname thy of
skalberg@15531
  1347
	arg as (_,SOME _) => arg
skalberg@14516
  1348
      | _ => raise ERR "get_axiom" ("Trying to retrieve axiom (" ^ axname ^ ")")
skalberg@14516
  1349
skalberg@14516
  1350
fun intern_store_thm gen_output thyname thmname hth thy =
skalberg@14516
  1351
    let
wenzelm@17894
  1352
	val (hth' as HOLThm (args as (_,th))) = norm_hthm thy hth
skalberg@14516
  1353
	val rew = rewrite_hol4_term (concl_of th) thy
skalberg@14516
  1354
	val th  = equal_elim rew th
skalberg@14516
  1355
	val thy' = add_hol4_pending thyname thmname args thy
obua@19064
  1356
	val _ = ImportRecorder.add_hol_pending thyname thmname (hthm2thm hth') 
wenzelm@17657
  1357
        val th = disambiguate_frees th
skalberg@14516
  1358
	val thy2 = if gen_output
obua@17644
  1359
		   then add_dump ("lemma " ^ (quotename thmname) ^ ": " ^ 
obua@17644
  1360
                                  (smart_string_of_thm th) ^ "\n  by (import " ^ 
obua@17644
  1361
                                  thyname ^ " " ^ (quotename thmname) ^ ")") thy'
skalberg@14516
  1362
		   else thy'
skalberg@14516
  1363
    in
skalberg@14516
  1364
	(thy2,hth')
skalberg@14516
  1365
    end
skalberg@14516
  1366
skalberg@14516
  1367
val store_thm = intern_store_thm true
skalberg@14516
  1368
skalberg@14516
  1369
fun mk_REFL ctm =
skalberg@14516
  1370
    let
skalberg@14516
  1371
	val cty = Thm.ctyp_of_term ctm
skalberg@14516
  1372
    in
skalberg@15531
  1373
	Drule.instantiate' [SOME cty] [SOME ctm] reflexivity_thm
skalberg@14516
  1374
    end
skalberg@14516
  1375
skalberg@14516
  1376
fun REFL tm thy =
skalberg@14516
  1377
    let
skalberg@14516
  1378
	val _ = message "REFL:"
skalberg@14516
  1379
	val (info,tm') = disamb_term tm
wenzelm@17894
  1380
	val ctm = Thm.cterm_of thy tm'
skalberg@14516
  1381
	val res = HOLThm(rens_of info,mk_REFL ctm)
skalberg@14516
  1382
	val _ = if_debug pth res
skalberg@14516
  1383
    in
skalberg@14516
  1384
	(thy,res)
skalberg@14516
  1385
    end
skalberg@14516
  1386
skalberg@14516
  1387
fun ASSUME tm thy =
skalberg@14516
  1388
    let
skalberg@14516
  1389
	val _ = message "ASSUME:"
skalberg@14516
  1390
	val (info,tm') = disamb_term tm
wenzelm@17894
  1391
	val ctm = Thm.cterm_of thy (HOLogic.mk_Trueprop tm')
skalberg@14516
  1392
	val th = Thm.trivial ctm
skalberg@14516
  1393
	val res = HOLThm(rens_of info,th)
skalberg@14516
  1394
	val _ = if_debug pth res
skalberg@14516
  1395
    in
skalberg@14516
  1396
	(thy,res)
skalberg@14516
  1397
    end
skalberg@14516
  1398
skalberg@14516
  1399
fun INST_TYPE lambda (hth as HOLThm(rens,th)) thy =
skalberg@14516
  1400
    let
skalberg@14516
  1401
	val _ = message "INST_TYPE:"
skalberg@14516
  1402
	val _ = if_debug pth hth
skalberg@14516
  1403
	val tys_before = add_term_tfrees (prop_of th,[])
skalberg@14516
  1404
	val th1 = varifyT th
skalberg@14516
  1405
	val tys_after = add_term_tvars (prop_of th1,[])
berghofe@15794
  1406
	val tyinst = map (fn (bef, iS) =>
skalberg@14516
  1407
			     (case try (Lib.assoc (TFree bef)) lambda of
wenzelm@17894
  1408
				  SOME ty => (ctyp_of thy (TVar iS), ctyp_of thy ty)
wenzelm@17894
  1409
				| NONE => (ctyp_of thy (TVar iS), ctyp_of thy (TFree bef))
skalberg@14516
  1410
			     ))
skalberg@14516
  1411
			 (zip tys_before tys_after)
skalberg@14516
  1412
	val res = Drule.instantiate (tyinst,[]) th1
obua@17328
  1413
	val hth = HOLThm([],res)
wenzelm@17894
  1414
	val res = norm_hthm thy hth
skalberg@14516
  1415
	val _ = message "RESULT:"
skalberg@14516
  1416
	val _ = if_debug pth res
skalberg@14516
  1417
    in
skalberg@14516
  1418
	(thy,res)
skalberg@14516
  1419
    end
skalberg@14516
  1420
skalberg@14516
  1421
fun INST sigma hth thy =
skalberg@14516
  1422
    let
skalberg@14516
  1423
	val _ = message "INST:"
skalberg@14516
  1424
	val _ = if_debug (app (fn (x,y) => (prin x; prin y))) sigma
skalberg@14516
  1425
	val _ = if_debug pth hth
obua@17335
  1426
	val (sdom,srng) = ListPair.unzip (rev sigma)
obua@17328
  1427
	val th = hthm2thm hth
wenzelm@17894
  1428
	val th1 = mk_INST (map (cterm_of thy) sdom) (map (cterm_of thy) srng) th
obua@17328
  1429
	val res = HOLThm([],th1)
skalberg@14516
  1430
	val _ = message "RESULT:"
skalberg@14516
  1431
	val _ = if_debug pth res
skalberg@14516
  1432
    in
skalberg@14516
  1433
	(thy,res)
skalberg@14516
  1434
    end
skalberg@14516
  1435
skalberg@14516
  1436
fun EQ_IMP_RULE (hth as HOLThm(rens,th)) thy =
skalberg@14516
  1437
    let
skalberg@14516
  1438
	val _ = message "EQ_IMP_RULE:"
skalberg@14516
  1439
	val _ = if_debug pth hth
skalberg@14516
  1440
	val res = HOLThm(rens,th RS eqimp_thm)
skalberg@14516
  1441
	val _ = message "RESULT:"
skalberg@14516
  1442
	val _ = if_debug pth res
skalberg@14516
  1443
    in
skalberg@14516
  1444
	(thy,res)
skalberg@14516
  1445
    end
skalberg@14516
  1446
obua@17322
  1447
fun mk_EQ_MP th1 th2 = [beta_eta_thm th1, beta_eta_thm th2] MRS eqmp_thm
skalberg@14516
  1448
skalberg@14516
  1449
fun EQ_MP hth1 hth2 thy =
skalberg@14516
  1450
    let
skalberg@14516
  1451
	val _ = message "EQ_MP:"
skalberg@14516
  1452
	val _ = if_debug pth hth1
skalberg@14516
  1453
	val _ = if_debug pth hth2
skalberg@14516
  1454
	val (info,[th1,th2]) = disamb_thms [hth1,hth2]
skalberg@14516
  1455
	val res = HOLThm(rens_of info,mk_EQ_MP th1 th2)
skalberg@14516
  1456
	val _ = message "RESULT:"
skalberg@14516
  1457
	val _ = if_debug pth res
skalberg@14516
  1458
    in
skalberg@14516
  1459
	(thy,res)
skalberg@14516
  1460
    end
skalberg@14516
  1461
wenzelm@17894
  1462
fun mk_COMB th1 th2 thy =
skalberg@14516
  1463
    let
skalberg@14516
  1464
	val (f,g) = case concl_of th1 of
skalberg@14516
  1465
			_ $ (Const("op =",_) $ f $ g) => (f,g)
skalberg@14516
  1466
		      | _ => raise ERR "mk_COMB" "First theorem not an equality"
skalberg@14516
  1467
	val (x,y) = case concl_of th2 of
skalberg@14516
  1468
			_ $ (Const("op =",_) $ x $ y) => (x,y)
skalberg@14516
  1469
		      | _ => raise ERR "mk_COMB" "Second theorem not an equality"
skalberg@14516
  1470
	val fty = type_of f
skalberg@14516
  1471
	val (fd,fr) = dom_rng fty
skalberg@14516
  1472
	val comb_thm' = Drule.instantiate'
wenzelm@17894
  1473
			    [SOME (ctyp_of thy fd),SOME (ctyp_of thy fr)]
wenzelm@17894
  1474
			    [SOME (cterm_of thy f),SOME (cterm_of thy g),
wenzelm@17894
  1475
			     SOME (cterm_of thy x),SOME (cterm_of thy y)] comb_thm
skalberg@14516
  1476
    in
skalberg@14516
  1477
	[th1,th2] MRS comb_thm'
skalberg@14516
  1478
    end
skalberg@14516
  1479
skalberg@14516
  1480
fun SUBST rews ctxt hth thy =
skalberg@14516
  1481
    let
skalberg@14516
  1482
	val _ = message "SUBST:"
skalberg@14516
  1483
	val _ = if_debug (app pth) rews
skalberg@14516
  1484
	val _ = if_debug prin ctxt
skalberg@14516
  1485
	val _ = if_debug pth hth
skalberg@14516
  1486
	val (info,th) = disamb_thm hth
skalberg@14516
  1487
	val (info1,ctxt') = disamb_term_from info ctxt
skalberg@14516
  1488
	val (info2,rews') = disamb_thms_from info1 rews
skalberg@14516
  1489
wenzelm@17894
  1490
	val cctxt = cterm_of thy ctxt'
skalberg@14516
  1491
	fun subst th [] = th
wenzelm@17894
  1492
	  | subst th (rew::rews) = subst (mk_COMB th rew thy) rews
skalberg@14516
  1493
	val res = HOLThm(rens_of info2,mk_EQ_MP (subst (mk_REFL cctxt) rews') th)
skalberg@14516
  1494
	val _ = message "RESULT:"
skalberg@14516
  1495
	val _ = if_debug pth res
skalberg@14516
  1496
    in
skalberg@14516
  1497
	(thy,res)
skalberg@14516
  1498
    end
skalberg@14516
  1499
skalberg@14516
  1500
fun DISJ_CASES hth hth1 hth2 thy =
skalberg@14516
  1501
    let
skalberg@14516
  1502
	val _ = message "DISJ_CASES:"
skalberg@14516
  1503
	val _ = if_debug (app pth) [hth,hth1,hth2]
skalberg@14516
  1504
	val (info,th) = disamb_thm hth
skalberg@14516
  1505
	val (info1,th1) = disamb_thm_from info hth1
skalberg@14516
  1506
	val (info2,th2) = disamb_thm_from info1 hth2
skalberg@14516
  1507
	val th1 = norm_hyps th1
skalberg@14516
  1508
	val th2 = norm_hyps th2
skalberg@14516
  1509
	val (l,r) = case concl_of th of
skalberg@14516
  1510
			_ $ (Const("op |",_) $ l $ r) => (l,r)
skalberg@14516
  1511
		      | _ => raise ERR "DISJ_CASES" "Conclusion not a disjunction"
wenzelm@17894
  1512
	val th1' = rearrange thy (HOLogic.mk_Trueprop l) th1
wenzelm@17894
  1513
	val th2' = rearrange thy (HOLogic.mk_Trueprop r) th2
skalberg@14516
  1514
	val res1 = th RS disj_cases_thm
skalberg@14516
  1515
	val res2 = uniq_compose ((nprems_of th1')-1) th1' ((nprems_of th)+1) res1
skalberg@14516
  1516
	val res3 = uniq_compose ((nprems_of th2')-1) th2' (nprems_of res2) res2
skalberg@14516
  1517
	val res  = HOLThm(rens_of info2,res3)
skalberg@14516
  1518
	val _ = message "RESULT:"
skalberg@14516
  1519
	val _ = if_debug pth res
skalberg@14516
  1520
    in
skalberg@14516
  1521
	(thy,res)
skalberg@14516
  1522
    end
skalberg@14516
  1523
skalberg@14516
  1524
fun DISJ1 hth tm thy =
skalberg@14516
  1525
    let
skalberg@14516
  1526
	val _ = message "DISJ1:"
skalberg@14516
  1527
	val _ = if_debug pth hth
skalberg@14516
  1528
	val _ = if_debug prin tm
skalberg@14516
  1529
	val (info,th) = disamb_thm hth
skalberg@14516
  1530
	val (info',tm') = disamb_term_from info tm
wenzelm@17894
  1531
	val ct = Thm.cterm_of thy tm'
skalberg@15531
  1532
	val disj1_thm' = Drule.instantiate' [] [NONE,SOME ct] disj1_thm
skalberg@14516
  1533
	val res = HOLThm(rens_of info',th RS disj1_thm')
skalberg@14516
  1534
	val _ = message "RESULT:"
skalberg@14516
  1535
	val _ = if_debug pth res
skalberg@14516
  1536
    in
skalberg@14516
  1537
	(thy,res)
skalberg@14516
  1538
    end
skalberg@14516
  1539
skalberg@14516
  1540
fun DISJ2 tm hth thy =
skalberg@14516
  1541
    let
skalberg@14516
  1542
	val _ = message "DISJ1:"
skalberg@14516
  1543
	val _ = if_debug prin tm
skalberg@14516
  1544
	val _ = if_debug pth hth
skalberg@14516
  1545
	val (info,th) = disamb_thm hth
skalberg@14516
  1546
	val (info',tm') = disamb_term_from info tm
wenzelm@17894
  1547
	val ct = Thm.cterm_of thy tm'
skalberg@15531
  1548
	val disj2_thm' = Drule.instantiate' [] [NONE,SOME ct] disj2_thm
skalberg@14516
  1549
	val res = HOLThm(rens_of info',th RS disj2_thm')
skalberg@14516
  1550
	val _ = message "RESULT:"
skalberg@14516
  1551
	val _ = if_debug pth res
skalberg@14516
  1552
    in
skalberg@14516
  1553
	(thy,res)
skalberg@14516
  1554
    end
skalberg@14516
  1555
skalberg@14516
  1556
fun IMP_ANTISYM hth1 hth2 thy =
skalberg@14516
  1557
    let
skalberg@14516
  1558
	val _ = message "IMP_ANTISYM:"
skalberg@14516
  1559
	val _ = if_debug pth hth1
skalberg@14516
  1560
	val _ = if_debug pth hth2
skalberg@14516
  1561
	val (info,[th1,th2]) = disamb_thms [hth1,hth2]
skalberg@14516
  1562
	val th = [beta_eta_thm th1,beta_eta_thm th2] MRS imp_antisym_thm
skalberg@14516
  1563
	val res = HOLThm(rens_of info,th)
skalberg@14516
  1564
	val _ = message "RESULT:"
skalberg@14516
  1565
	val _ = if_debug pth res
skalberg@14516
  1566
    in
skalberg@14516
  1567
	(thy,res)
skalberg@14516
  1568
    end
skalberg@14516
  1569
skalberg@14516
  1570
fun SYM (hth as HOLThm(rens,th)) thy =
skalberg@14516
  1571
    let
skalberg@14516
  1572
	val _ = message "SYM:"
skalberg@14516
  1573
	val _ = if_debug pth hth
skalberg@14516
  1574
	val th = th RS symmetry_thm
skalberg@14516
  1575
	val res = HOLThm(rens,th)
skalberg@14516
  1576
	val _ = message "RESULT:"
skalberg@14516
  1577
	val _ = if_debug pth res
skalberg@14516
  1578
    in
skalberg@14516
  1579
	(thy,res)
skalberg@14516
  1580
    end
skalberg@14516
  1581
skalberg@14516
  1582
fun MP hth1 hth2 thy =
skalberg@14516
  1583
    let
skalberg@14516
  1584
	val _ = message "MP:"
skalberg@14516
  1585
	val _ = if_debug pth hth1
skalberg@14516
  1586
	val _ = if_debug pth hth2
skalberg@14516
  1587
	val (info,[th1,th2]) = disamb_thms [hth1,hth2]
skalberg@14516
  1588
	val th = [beta_eta_thm th1,beta_eta_thm th2] MRS mp_thm
skalberg@14516
  1589
	val res = HOLThm(rens_of info,th)
skalberg@14516
  1590
	val _ = message "RESULT:"
skalberg@14516
  1591
	val _ = if_debug pth res
skalberg@14516
  1592
    in
skalberg@14516
  1593
	(thy,res)
skalberg@14516
  1594
    end
skalberg@14516
  1595
skalberg@14516
  1596
fun CONJ hth1 hth2 thy =
skalberg@14516
  1597
    let
skalberg@14516
  1598
	val _ = message "CONJ:"
skalberg@14516
  1599
	val _ = if_debug pth hth1
skalberg@14516
  1600
	val _ = if_debug pth hth2
skalberg@14516
  1601
	val (info,[th1,th2]) = disamb_thms [hth1,hth2]
skalberg@14516
  1602
	val th = [th1,th2] MRS conj_thm
skalberg@14516
  1603
	val res = HOLThm(rens_of info,th)
skalberg@14516
  1604
	val _ = message "RESULT:"
skalberg@14516
  1605
	val _ = if_debug pth res
skalberg@14516
  1606
    in
skalberg@14516
  1607
	(thy,res)
skalberg@14516
  1608
    end
skalberg@14516
  1609
skalberg@14516
  1610
fun CONJUNCT1 (hth as HOLThm(rens,th)) thy =
skalberg@14516
  1611
    let
skalberg@14516
  1612
	val _ = message "CONJUNCT1:"
skalberg@14516
  1613
	val _ = if_debug pth hth
skalberg@14516
  1614
	val res = HOLThm(rens,th RS conjunct1_thm)
skalberg@14516
  1615
	val _ = message "RESULT:"
skalberg@14516
  1616
	val _ = if_debug pth res
skalberg@14516
  1617
    in
skalberg@14516
  1618
	(thy,res)
skalberg@14516
  1619
    end
skalberg@14516
  1620
skalberg@14516
  1621
fun CONJUNCT2 (hth as HOLThm(rens,th)) thy =
skalberg@14516
  1622
    let
skalberg@14516
  1623
	val _ = message "CONJUNCT1:"
skalberg@14516
  1624
	val _ = if_debug pth hth
skalberg@14516
  1625
	val res = HOLThm(rens,th RS conjunct2_thm)
skalberg@14516
  1626
	val _ = message "RESULT:"
skalberg@14516
  1627
	val _ = if_debug pth res
skalberg@14516
  1628
    in
skalberg@14516
  1629
	(thy,res)
skalberg@14516
  1630
    end
skalberg@14516
  1631
skalberg@14516
  1632
fun EXISTS ex wit hth thy =
skalberg@14516
  1633
    let
skalberg@14516
  1634
	val _ = message "EXISTS:"
skalberg@14516
  1635
	val _ = if_debug prin ex
skalberg@14516
  1636
	val _ = if_debug prin wit
skalberg@14516
  1637
	val _ = if_debug pth hth
skalberg@14516
  1638
	val (info,th) = disamb_thm hth
skalberg@14516
  1639
	val (info',[ex',wit']) = disamb_terms_from info [ex,wit]
wenzelm@17894
  1640
	val cwit = cterm_of thy wit'
skalberg@14516
  1641
	val cty = ctyp_of_term cwit
skalberg@14516
  1642
	val a = case ex' of
skalberg@14516
  1643
		    (Const("Ex",_) $ a) => a
skalberg@14516
  1644
		  | _ => raise ERR "EXISTS" "Argument not existential"
wenzelm@17894
  1645
	val ca = cterm_of thy a
skalberg@15531
  1646
	val exists_thm' = beta_eta_thm (Drule.instantiate' [SOME cty] [SOME ca,SOME cwit] exists_thm)
skalberg@14516
  1647
	val th1 = beta_eta_thm th
skalberg@14516
  1648
	val th2 = implies_elim_all th1
skalberg@14516
  1649
	val th3 = th2 COMP exists_thm'
skalberg@14516
  1650
	val th  = implies_intr_hyps th3
skalberg@14516
  1651
	val res = HOLThm(rens_of info',th)
skalberg@14516
  1652
	val _   = message "RESULT:"
skalberg@14516
  1653
	val _   = if_debug pth res
skalberg@14516
  1654
    in
skalberg@14516
  1655
	(thy,res)
skalberg@14516
  1656
    end
skalberg@14516
  1657
skalberg@14516
  1658
fun CHOOSE v hth1 hth2 thy =
skalberg@14516
  1659
    let
skalberg@14516
  1660
	val _ = message "CHOOSE:"
skalberg@14516
  1661
	val _ = if_debug prin v
skalberg@14516
  1662
	val _ = if_debug pth hth1
skalberg@14516
  1663
	val _ = if_debug pth hth2
skalberg@14516
  1664
	val (info,[th1,th2]) = disamb_thms [hth1,hth2]
skalberg@14516
  1665
	val (info',v') = disamb_term_from info v
skalberg@14516
  1666
	fun strip 0 _ th = th
skalberg@14516
  1667
	  | strip n (p::ps) th =
skalberg@14516
  1668
	    strip (n-1) ps (implies_elim th (assume p))
skalberg@14516
  1669
	  | strip _ _ _ = raise ERR "CHOOSE" "strip error"
wenzelm@17894
  1670
	val cv = cterm_of thy v'
skalberg@14516
  1671
	val th2 = norm_hyps th2
skalberg@14516
  1672
	val cvty = ctyp_of_term cv
skalberg@14518
  1673
	val c = HOLogic.dest_Trueprop (concl_of th2)
wenzelm@17894
  1674
	val cc = cterm_of thy c
skalberg@14516
  1675
	val a = case concl_of th1 of
skalberg@14516
  1676
		    _ $ (Const("Ex",_) $ a) => a
skalberg@14516
  1677
		  | _ => raise ERR "CHOOSE" "Conclusion not existential"
wenzelm@17894
  1678
	val ca = cterm_of (theory_of_thm th1) a
skalberg@15531
  1679
	val choose_thm' = beta_eta_thm (Drule.instantiate' [SOME cvty] [SOME ca,SOME cc] choose_thm)
wenzelm@17894
  1680
	val th21 = rearrange thy (HOLogic.mk_Trueprop (a $ v')) th2
skalberg@14516
  1681
	val th22 = strip ((nprems_of th21)-1) (cprems_of th21) th21
skalberg@14516
  1682
	val th23 = beta_eta_thm (forall_intr cv th22)
skalberg@14516
  1683
	val th11 = implies_elim_all (beta_eta_thm th1)
skalberg@14516
  1684
	val th' = th23 COMP (th11 COMP choose_thm')
skalberg@14516
  1685
	val th = implies_intr_hyps th'
skalberg@14516
  1686
	val res = HOLThm(rens_of info',th)
skalberg@14516
  1687
	val _   = message "RESULT:"
skalberg@14516
  1688
	val _   = if_debug pth res
skalberg@14516
  1689
    in
skalberg@14516
  1690
	(thy,res)
skalberg@14516
  1691
    end
skalberg@14516
  1692
skalberg@14516
  1693
fun GEN v hth thy =
skalberg@14516
  1694
    let
obua@17594
  1695
      val _ = message "GEN:"
skalberg@14516
  1696
	val _ = if_debug prin v
skalberg@14516
  1697
	val _ = if_debug pth hth
skalberg@14516
  1698
	val (info,th) = disamb_thm hth
skalberg@14516
  1699
	val (info',v') = disamb_term_from info v
wenzelm@17894
  1700
	val res = HOLThm(rens_of info',mk_GEN v' th thy)
skalberg@14516
  1701
	val _ = message "RESULT:"
skalberg@14516
  1702
	val _ = if_debug pth res
skalberg@14516
  1703
    in
skalberg@14516
  1704
	(thy,res)
skalberg@14516
  1705
    end
skalberg@14516
  1706
skalberg@14516
  1707
fun SPEC tm hth thy =
skalberg@14516
  1708
    let
skalberg@14516
  1709
	val _ = message "SPEC:"
skalberg@14516
  1710
	val _ = if_debug prin tm
skalberg@14516
  1711
	val _ = if_debug pth hth
skalberg@14516
  1712
	val (info,th) = disamb_thm hth
skalberg@14516
  1713
	val (info',tm') = disamb_term_from info tm
wenzelm@17894
  1714
	val ctm = Thm.cterm_of thy tm'
skalberg@14516
  1715
	val cty = Thm.ctyp_of_term ctm
skalberg@15531
  1716
	val spec' = Drule.instantiate' [SOME cty] [NONE,SOME ctm] spec_thm
skalberg@14516
  1717
	val th = th RS spec'
skalberg@14516
  1718
	val res = HOLThm(rens_of info',th)
skalberg@14516
  1719
	val _ = message "RESULT:"
skalberg@14516
  1720
	val _ = if_debug pth res
skalberg@14516
  1721
    in
skalberg@14516
  1722
	(thy,res)
skalberg@14516
  1723
    end
skalberg@14516
  1724
skalberg@14516
  1725
fun COMB hth1 hth2 thy =
skalberg@14516
  1726
    let
skalberg@14516
  1727
	val _ = message "COMB:"
skalberg@14516
  1728
	val _ = if_debug pth hth1
skalberg@14516
  1729
	val _ = if_debug pth hth2
skalberg@14516
  1730
	val (info,[th1,th2]) = disamb_thms [hth1,hth2]
wenzelm@17894
  1731
	val res = HOLThm(rens_of info,mk_COMB th1 th2 thy)
skalberg@14516
  1732
	val _ = message "RESULT:"
skalberg@14516
  1733
	val _ = if_debug pth res
skalberg@14516
  1734
    in
skalberg@14516
  1735
	(thy,res)
skalberg@14516
  1736
    end
skalberg@14516
  1737
skalberg@14516
  1738
fun TRANS hth1 hth2 thy =
skalberg@14516
  1739
    let
skalberg@14516
  1740
	val _ = message "TRANS:"
skalberg@14516
  1741
	val _ = if_debug pth hth1
skalberg@14516
  1742
	val _ = if_debug pth hth2
skalberg@14516
  1743
	val (info,[th1,th2]) = disamb_thms [hth1,hth2]
skalberg@14516
  1744
	val th = [th1,th2] MRS trans_thm
skalberg@14516
  1745
	val res = HOLThm(rens_of info,th)
skalberg@14516
  1746
	val _ = message "RESULT:"
skalberg@14516
  1747
	val _ = if_debug pth res
skalberg@14516
  1748
    in
skalberg@14516
  1749
	(thy,res)
skalberg@14516
  1750
    end
skalberg@14516
  1751
	
skalberg@14516
  1752
skalberg@14516
  1753
fun CCONTR tm hth thy =
skalberg@14516
  1754
    let
skalberg@14516
  1755
	val _ = message "SPEC:"
skalberg@14516
  1756
	val _ = if_debug prin tm
skalberg@14516
  1757
	val _ = if_debug pth hth
skalberg@14516
  1758
	val (info,th) = disamb_thm hth
skalberg@14516
  1759
	val (info',tm') = disamb_term_from info tm
skalberg@14516
  1760
	val th = norm_hyps th
wenzelm@17894
  1761
	val ct = cterm_of thy tm'
wenzelm@17894
  1762
	val th1 = rearrange thy (HOLogic.mk_Trueprop (Const("Not",boolT-->boolT) $ tm')) th
skalberg@15531
  1763
	val ccontr_thm' = Drule.instantiate' [] [SOME ct] ccontr_thm
skalberg@14516
  1764
	val res1 = uniq_compose ((nprems_of th1) - 1) th1 1 ccontr_thm'
skalberg@14516
  1765
	val res = HOLThm(rens_of info',res1)
skalberg@14516
  1766
	val _ = message "RESULT:"
skalberg@14516
  1767
	val _ = if_debug pth res
skalberg@14516
  1768
    in
skalberg@14516
  1769
	(thy,res)
skalberg@14516
  1770
    end
skalberg@14516
  1771
wenzelm@17894
  1772
fun mk_ABS v th thy =
skalberg@14516
  1773
    let
wenzelm@17894
  1774
	val cv = cterm_of thy v
skalberg@14516
  1775
	val th1 = implies_elim_all (beta_eta_thm th)
skalberg@14516
  1776
	val (f,g) = case concl_of th1 of
skalberg@14516
  1777
			_ $ (Const("op =",_) $ f $ g) => (Term.lambda v f,Term.lambda v g)
skalberg@14516
  1778
		      | _ => raise ERR "mk_ABS" "Bad conclusion"
skalberg@14516
  1779
	val (fd,fr) = dom_rng (type_of f)
wenzelm@17894
  1780
	val abs_thm' = Drule.instantiate' [SOME (ctyp_of thy fd), SOME (ctyp_of thy fr)] [SOME (cterm_of thy f), SOME (cterm_of thy g)] abs_thm
skalberg@14516
  1781
	val th2 = forall_intr cv th1
skalberg@14516
  1782
	val th3 = th2 COMP abs_thm'
skalberg@14516
  1783
	val res = implies_intr_hyps th3
skalberg@14516
  1784
    in
skalberg@14516
  1785
	res
skalberg@14516
  1786
    end
skalberg@14516
  1787
skalberg@14516
  1788
fun ABS v hth thy =
skalberg@14516
  1789
    let
skalberg@14516
  1790
	val _ = message "ABS:"
skalberg@14516
  1791
	val _ = if_debug prin v
skalberg@14516
  1792
	val _ = if_debug pth hth
skalberg@14516
  1793
	val (info,th) = disamb_thm hth
skalberg@14516
  1794
	val (info',v') = disamb_term_from info v
wenzelm@17894
  1795
	val res = HOLThm(rens_of info',mk_ABS v' th thy)
skalberg@14516
  1796
	val _ = message "RESULT:"
skalberg@14516
  1797
	val _ = if_debug pth res
skalberg@14516
  1798
    in
skalberg@14516
  1799
	(thy,res)
skalberg@14516
  1800
    end
skalberg@14516
  1801
skalberg@14516
  1802
fun GEN_ABS copt vlist hth thy =
skalberg@14516
  1803
    let
skalberg@14516
  1804
	val _ = message "GEN_ABS:"
skalberg@14516
  1805
	val _ = case copt of
skalberg@15531
  1806
		    SOME c => if_debug prin c
skalberg@15531
  1807
		  | NONE => ()
skalberg@14516
  1808
	val _ = if_debug (app prin) vlist
skalberg@14516
  1809
	val _ = if_debug pth hth
skalberg@14516
  1810
	val (info,th) = disamb_thm hth
skalberg@14516
  1811
	val (info',vlist') = disamb_terms_from info vlist
skalberg@14516
  1812
	val th1 =
skalberg@14516
  1813
	    case copt of
skalberg@15531
  1814
		SOME (c as Const(cname,cty)) =>
skalberg@14516
  1815
		let
skalberg@14516
  1816
		    fun inst_type ty1 ty2 (TVar _) = raise ERR "GEN_ABS" "Type variable found!"
skalberg@14516
  1817
		      | inst_type ty1 ty2 (ty as TFree _) = if ty1 = ty
skalberg@14516
  1818
							    then ty2
skalberg@14516
  1819
							    else ty
skalberg@14516
  1820
		      | inst_type ty1 ty2 (ty as Type(name,tys)) =
skalberg@14516
  1821
			Type(name,map (inst_type ty1 ty2) tys)
skalberg@14516
  1822
		in
skalberg@15574
  1823
		    foldr (fn (v,th) =>
skalberg@14516
  1824
			      let
skalberg@14516
  1825
				  val cdom = fst (dom_rng (fst (dom_rng cty)))
skalberg@14516
  1826
				  val vty  = type_of v
skalberg@14516
  1827
				  val newcty = inst_type cdom vty cty
wenzelm@17894
  1828
				  val cc = cterm_of thy (Const(cname,newcty))
skalberg@14516
  1829
			      in
wenzelm@17894
  1830
				  mk_COMB (mk_REFL cc) (mk_ABS v th thy) thy
skalberg@15574
  1831
			      end) th vlist'
skalberg@14516
  1832
		end
skalberg@15531
  1833
	      | SOME _ => raise ERR "GEN_ABS" "Bad constant"
skalberg@15531
  1834
	      | NONE => 
wenzelm@17894
  1835
		foldr (fn (v,th) => mk_ABS v th thy) th vlist'
skalberg@14516
  1836
	val res = HOLThm(rens_of info',th1)
skalberg@14516
  1837
	val _ = message "RESULT:"
skalberg@14516
  1838
	val _ = if_debug pth res
skalberg@14516
  1839
    in
skalberg@14516
  1840
	(thy,res)
skalberg@14516
  1841
    end
skalberg@14516
  1842
skalberg@14516
  1843
fun NOT_INTRO (hth as HOLThm(rens,th)) thy =
skalberg@14516
  1844
    let
skalberg@14516
  1845
	val _ = message "NOT_INTRO:"
skalberg@14516
  1846
	val _ = if_debug pth hth
skalberg@14516
  1847
	val th1 = implies_elim_all (beta_eta_thm th)
skalberg@14516
  1848
	val a = case concl_of th1 of
skalberg@14516
  1849
		    _ $ (Const("op -->",_) $ a $ Const("False",_)) => a
skalberg@14516
  1850
		  | _ => raise ERR "NOT_INTRO" "Conclusion of bad form"
wenzelm@17894
  1851
	val ca = cterm_of thy a
skalberg@15531
  1852
	val th2 = equal_elim (Drule.instantiate' [] [SOME ca] not_intro_thm) th1
skalberg@14516
  1853
	val res = HOLThm(rens,implies_intr_hyps th2)
skalberg@14516
  1854
	val _ = message "RESULT:"
skalberg@14516
  1855
	val _ = if_debug pth res
skalberg@14516
  1856
    in
skalberg@14516
  1857
	(thy,res)
skalberg@14516
  1858
    end
skalberg@14516
  1859
skalberg@14516
  1860
fun NOT_ELIM (hth as HOLThm(rens,th)) thy =
skalberg@14516
  1861
    let
skalberg@14516
  1862
	val _ = message "NOT_INTRO:"
skalberg@14516
  1863
	val _ = if_debug pth hth
skalberg@14516
  1864
	val th1 = implies_elim_all (beta_eta_thm th)
skalberg@14516
  1865
	val a = case concl_of th1 of
skalberg@14516
  1866
		    _ $ (Const("Not",_) $ a) => a
skalberg@14516
  1867
		  | _ => raise ERR "NOT_ELIM" "Conclusion of bad form"
wenzelm@17894
  1868
	val ca = cterm_of thy a
skalberg@15531
  1869
	val th2 = equal_elim (Drule.instantiate' [] [SOME ca] not_elim_thm) th1
skalberg@14516
  1870
	val res = HOLThm(rens,implies_intr_hyps th2)
skalberg@14516
  1871
	val _ = message "RESULT:"
skalberg@14516
  1872
	val _ = if_debug pth res
skalberg@14516
  1873
    in
skalberg@14516
  1874
	(thy,res)
skalberg@14516
  1875
    end
skalberg@14516
  1876
skalberg@14516
  1877
fun DISCH tm hth thy =
skalberg@14516
  1878
    let
skalberg@14516
  1879
	val _ = message "DISCH:"
skalberg@14516
  1880
	val _ = if_debug prin tm
skalberg@14516
  1881
	val _ = if_debug pth hth
skalberg@14516
  1882
	val (info,th) = disamb_thm hth
skalberg@14516
  1883
	val (info',tm') = disamb_term_from info tm
skalberg@14516
  1884
	val prems = prems_of th
skalberg@14516
  1885
	val th1 = beta_eta_thm th
skalberg@14516
  1886
	val th2 = implies_elim_all th1
wenzelm@17894
  1887
	val th3 = implies_intr (cterm_of thy (HOLogic.mk_Trueprop tm')) th2
skalberg@14516
  1888
	val th4 = th3 COMP disch_thm
skalberg@14516
  1889
	val res = HOLThm(rens_of info',implies_intr_hyps th4)
skalberg@14516
  1890
	val _ = message "RESULT:"
skalberg@14516
  1891
	val _ = if_debug pth res
skalberg@14516
  1892
    in
skalberg@14516
  1893
	(thy,res)
skalberg@14516
  1894
    end
skalberg@14516
  1895
skalberg@14516
  1896
val spaces = String.concat o separate " "
skalberg@14516
  1897
skalberg@14516
  1898
fun new_definition thyname constname rhs thy =
skalberg@14516
  1899
    let
skalberg@14516
  1900
	val constname = rename_const thyname thy constname
wenzelm@17894
  1901
        val redeclared = isSome (Sign.const_type thy (Sign.intern_const thy constname));
skalberg@14516
  1902
	val _ = warning ("Introducing constant " ^ constname)
skalberg@14516
  1903
	val (thmname,thy) = get_defname thyname constname thy
skalberg@14516
  1904
	val (info,rhs') = disamb_term rhs
skalberg@14516
  1905
	val ctype = type_of rhs'
wenzelm@14685
  1906
	val csyn = mk_syn thy constname
skalberg@14516
  1907
	val thy1 = case HOL4DefThy.get thy of
skalberg@14516
  1908
		       Replaying _ => thy
obua@19064
  1909
		     | _ => (ImportRecorder.add_consts [(constname, ctype, csyn)]; Theory.add_consts_i [(constname,ctype,csyn)] thy)
skalberg@14516
  1910
	val eq = mk_defeq constname rhs' thy1
haftmann@18358
  1911
	val (thms, thy2) = PureThy.add_defs_i false [((thmname,eq),[])] thy1
obua@19064
  1912
	val _ = ImportRecorder.add_defs thmname eq
skalberg@14516
  1913
	val def_thm = hd thms
skalberg@14516
  1914
	val thm' = def_thm RS meta_eq_to_obj_eq_thm
skalberg@14516
  1915
	val (thy',th) = (thy2, thm')
wenzelm@17894
  1916
	val fullcname = Sign.intern_const thy' constname
skalberg@14516
  1917
	val thy'' = add_hol4_const_mapping thyname constname true fullcname thy'
obua@19064
  1918
	val _ = ImportRecorder.add_hol_const_mapping thyname constname fullcname
skalberg@14516
  1919
	val (linfo,tm24) = disamb_term (mk_teq constname rhs' thy'')
skalberg@14516
  1920
	val rew = rewrite_hol4_term eq thy''
wenzelm@17894
  1921
	val crhs = cterm_of thy'' (#2 (Logic.dest_equals (prop_of rew)))
wenzelm@14685
  1922
	val thy22 = if (def_name constname) = thmname andalso not redeclared andalso csyn = NoSyn
skalberg@14516
  1923
		    then
obua@19064
  1924
			let
obua@19064
  1925
			    val p1 = quotename constname
obua@19064
  1926
			    val p2 = string_of_ctyp (ctyp_of thy'' ctype)
obua@19064
  1927
			    val p3 = Syntax.string_of_mixfix csyn
obua@19064
  1928
			    val p4 = smart_string_of_cterm crhs
obua@19064
  1929
			in
obua@19064
  1930
			    add_dump ("constdefs\n  " ^p1^ " :: \"" ^p2^ "\" "^p3^ "\n  " ^p4) thy''  
obua@19064
  1931
			end
skalberg@14516
  1932
		    else
obua@19064
  1933
			(add_dump ("consts\n  " ^ (quotename constname) ^ " :: \"" ^ string_of_ctyp (ctyp_of thy'' ctype) ^
obua@19064
  1934
				   "\" " ^ (Syntax.string_of_mixfix csyn) ^ "\n\ndefs\n  " ^ (quotename thmname) ^ ": " ^ (smart_string_of_cterm crhs))
obua@19064
  1935
				  thy'')
skalberg@14516
  1936
	val hth = case Shuffler.set_prop thy22 (HOLogic.mk_Trueprop tm24) [("",th)] of
obua@19064
  1937
		      SOME (_,res) => HOLThm(rens_of linfo,res)
obua@19064
  1938
		    | NONE => raise ERR "new_definition" "Bad conclusion"
wenzelm@17894
  1939
	val fullname = Sign.full_name thy22 thmname
skalberg@14516
  1940
	val thy22' = case opt_get_output_thy thy22 of
obua@19064
  1941
			 "" => (ImportRecorder.add_hol_mapping thyname thmname fullname; 
obua@19064
  1942
				add_hol4_mapping thyname thmname fullname thy22)
skalberg@14516
  1943
		       | output_thy =>
skalberg@14516
  1944
			 let
skalberg@14516
  1945
			     val moved_thmname = output_thy ^ "." ^ thyname ^ "." ^ thmname
obua@19064
  1946
			     val _ = ImportRecorder.add_hol_move fullname moved_thmname
obua@19064
  1947
			     val _ = ImportRecorder.add_hol_mapping thyname thmname moved_thmname
skalberg@14516
  1948
			 in
skalberg@14516
  1949
			     thy22 |> add_hol4_move fullname moved_thmname
skalberg@14516
  1950
				   |> add_hol4_mapping thyname thmname moved_thmname
skalberg@14516
  1951
			 end
skalberg@14516
  1952
	val _ = message "new_definition:"
skalberg@14516
  1953
	val _ = if_debug pth hth
skalberg@14516
  1954
    in
skalberg@14516
  1955
	(thy22',hth)
skalberg@14516
  1956
    end
skalberg@14516
  1957
    handle e => (message "exception in new_definition"; print_exn e)
skalberg@14516
  1958
skalberg@14516
  1959
local
skalberg@14516
  1960
    val helper = thm "termspec_help"
skalberg@14516
  1961
in
skalberg@14516
  1962
fun new_specification thyname thmname names hth thy =
skalberg@14516
  1963
    case HOL4DefThy.get thy of
skalberg@14516
  1964
	Replaying _ => (thy,hth)
skalberg@14516
  1965
      | _ => 
skalberg@14516
  1966
	let
skalberg@14516
  1967
	    val _ = message "NEW_SPEC:"
skalberg@14516
  1968
	    val _ = if_debug pth hth
skalberg@14516
  1969
	    val names = map (rename_const thyname thy) names
wenzelm@17917
  1970
	    val _ = warning ("Introducing constants " ^ commas names)
wenzelm@17894
  1971
	    val (HOLThm(rens,th)) = norm_hthm thy hth
skalberg@14516
  1972
	    val thy1 = case HOL4DefThy.get thy of
skalberg@14516
  1973
			   Replaying _ => thy
skalberg@14516
  1974
			 | _ =>
skalberg@14516
  1975
			   let
skalberg@14516
  1976
			       fun dest_eta_abs (Abs(x,xT,body)) = (x,xT,body)
skalberg@14516
  1977
				 | dest_eta_abs body =
skalberg@14516
  1978
				   let
skalberg@14516
  1979
				       val (dT,rT) = dom_rng (type_of body)
skalberg@14516
  1980
				   in
skalberg@14516
  1981
				       ("x",dT,body $ Bound 0)
skalberg@14516
  1982
				   end
skalberg@14516
  1983
				   handle TYPE _ => raise ERR "new_specification" "not an abstraction type"
skalberg@14516
  1984
			       fun dest_exists (Const("Ex",_) $ abody) =
skalberg@14516
  1985
				   dest_eta_abs abody
skalberg@14516
  1986
				 | dest_exists tm =
skalberg@14516
  1987
				   raise ERR "new_specification" "Bad existential formula"
skalberg@14516
  1988
					 
skalberg@15570
  1989
			       val (consts,_) = Library.foldl (fn ((cs,ex),cname) =>
skalberg@14516
  1990
							  let
skalberg@14516
  1991
							      val (_,cT,p) = dest_exists ex
skalberg@14516
  1992
							  in
wenzelm@14685
  1993
							      ((cname,cT,mk_syn thy cname)::cs,p)
skalberg@14516
  1994
							  end) (([],HOLogic.dest_Trueprop (concl_of th)),names)
skalberg@15570
  1995
			       val str = Library.foldl (fn (acc,(c,T,csyn)) =>
wenzelm@17894
  1996
						   acc ^ "\n  " ^ (quotename c) ^ " :: \"" ^ string_of_ctyp (ctyp_of thy T) ^ "\" " ^ (Syntax.string_of_mixfix csyn)) ("consts",consts)
skalberg@14516
  1997
			       val thy' = add_dump str thy
obua@19064
  1998
			       val _ = ImportRecorder.add_consts consts
skalberg@14516
  1999
			   in
skalberg@14516
  2000
			       Theory.add_consts_i consts thy'
skalberg@14516
  2001
			   end
skalberg@14516
  2002
skalberg@15574
  2003
	    val thy1 = foldr (fn(name,thy)=>
skalberg@15574
  2004
				snd (get_defname thyname name thy)) thy1 names
skalberg@14516
  2005
	    fun new_name name = fst (get_defname thyname name thy1)
obua@19064
  2006
	    val names' = map (fn name => (new_name name,name,false)) names
wenzelm@18728
  2007
	    val (thy',res) = SpecificationPackage.add_specification NONE
obua@19064
  2008
				 names'
skalberg@14516
  2009
				 (thy1,th)
obua@19064
  2010
	    val _ = ImportRecorder.add_specification names' th
skalberg@14516
  2011
	    val res' = Drule.freeze_all res
skalberg@14516
  2012
	    val hth = HOLThm(rens,res')
skalberg@14516
  2013
	    val rew = rewrite_hol4_term (concl_of res') thy'
skalberg@14516
  2014
	    val th  = equal_elim rew res'
skalberg@14516
  2015
	    fun handle_const (name,thy) =
skalberg@14516
  2016
		let
skalberg@14516
  2017
		    val defname = def_name name
skalberg@14516
  2018
		    val (newname,thy') = get_defname thyname name thy
skalberg@14516
  2019
		in
skalberg@14516
  2020
		    (if defname = newname
skalberg@14516
  2021
		     then quotename name
skalberg@14516
  2022
		     else (quotename newname) ^ ": " ^ (quotename name),thy')
skalberg@14516
  2023
		end
skalberg@15574
  2024
	    val (new_names,thy') = foldr (fn(name,(names,thy)) =>
skalberg@14516
  2025
					    let
skalberg@14516
  2026
						val (name',thy') = handle_const (name,thy)
skalberg@14516
  2027
					    in
skalberg@14516
  2028
						(name'::names,thy')
skalberg@15574
  2029
					    end) ([],thy') names
skalberg@14516
  2030
	    val thy'' = add_dump ("specification (" ^ (spaces new_names) ^ ") " ^ thmname ^ ": " ^ (smart_string_of_thm th) ^
skalberg@14516
  2031
				  "\n  by (import " ^ thyname ^ " " ^ thmname ^ ")")
skalberg@14516
  2032
				 thy'
skalberg@14516
  2033
	    val _ = message "RESULT:"
skalberg@14516
  2034
	    val _ = if_debug pth hth
skalberg@14516
  2035
	in
skalberg@14516
  2036
	    intern_store_thm false thyname thmname hth thy''
skalberg@14516
  2037
	end
skalberg@14516
  2038
	handle e => (message "exception in new_specification"; print_exn e)
skalberg@14516
  2039
		    
skalberg@14516
  2040
end
skalberg@14516
  2041
			   
skalberg@14516
  2042
fun new_axiom name tm thy = raise ERR "new_axiom" ("Oh, no you don't! (" ^ name ^ ")")
skalberg@14516
  2043
				      
skalberg@14516
  2044
fun to_isa_thm (hth as HOLThm(_,th)) =
skalberg@14516
  2045
    let
wenzelm@17894
  2046
	val (HOLThm args) = norm_hthm (theory_of_thm th) hth
skalberg@14516
  2047
    in
skalberg@14516
  2048
	apsnd strip_shyps args
skalberg@14516
  2049
    end
skalberg@14516
  2050
skalberg@14516
  2051
fun to_isa_term tm = tm
skalberg@14516
  2052
skalberg@14516
  2053
local
skalberg@14516
  2054
    val light_nonempty = thm "light_ex_imp_nonempty"
skalberg@14516
  2055
    val ex_imp_nonempty = thm "ex_imp_nonempty"
skalberg@14516
  2056
    val typedef_hol2hol4 = thm "typedef_hol2hol4"
skalberg@14516
  2057
    val typedef_hol2hollight = thm "typedef_hol2hollight"
skalberg@14516
  2058
in
skalberg@14516
  2059
fun new_type_definition thyname thmname tycname hth thy =
skalberg@14516
  2060
    case HOL4DefThy.get thy of
skalberg@14516
  2061
	Replaying _ => (thy,hth)
skalberg@14516
  2062
      | _ => 
skalberg@14516
  2063
	let
skalberg@14516
  2064
	    val _ = message "TYPE_DEF:"
skalberg@14516
  2065
	    val _ = if_debug pth hth
skalberg@14516
  2066
	    val _ = warning ("Introducing type " ^ tycname)
wenzelm@17894
  2067
	    val (HOLThm(rens,td_th)) = norm_hthm thy hth
skalberg@14516
  2068
	    val th2 = beta_eta_thm (td_th RS ex_imp_nonempty)
skalberg@14516
  2069
	    val c = case concl_of th2 of
skalberg@14516
  2070
			_ $ (Const("Ex",_) $ Abs(_,_,Const("op :",_) $ _ $ c)) => c
skalberg@14516
  2071
		      | _ => raise ERR "new_type_definition" "Bad type definition theorem"
skalberg@14516
  2072
	    val tfrees = term_tfrees c
skalberg@14516
  2073
	    val tnames = map fst tfrees
wenzelm@14685
  2074
	    val tsyn = mk_syn thy tycname
skalberg@14516
  2075
	    val typ = (tycname,tnames,tsyn)
obua@19064
  2076
	    val (thy',typedef_info) = TypedefPackage.add_typedef_i false (SOME thmname) typ c NONE (rtac th2 1) thy	    
obua@19064
  2077
            val _ = ImportRecorder.add_typedef (SOME thmname) typ c NONE th2
skalberg@14516
  2078
				      
skalberg@14516
  2079
	    val th3 = (#type_definition typedef_info) RS typedef_hol2hol4
skalberg@14516
  2080
wenzelm@17894
  2081
	    val fulltyname = Sign.intern_type thy' tycname
skalberg@14516
  2082
	    val thy'' = add_hol4_type_mapping thyname tycname true fulltyname thy'
obua@19064
  2083
	    val _ = ImportRecorder.add_hol_type_mapping thyname tycname fulltyname
skalberg@14516
  2084
wenzelm@17894
  2085
	    val (hth' as HOLThm args) = norm_hthm thy'' (HOLThm(rens,th3))
skalberg@14516
  2086
	    val _ = if has_ren hth' then warning ("Theorem " ^ thmname ^ " needs variable-disambiguating")
skalberg@14516
  2087
		    else ()
skalberg@14516
  2088
	    val thy4 = add_hol4_pending thyname thmname args thy''
obua@19064
  2089
	    val _ = ImportRecorder.add_hol_pending thyname thmname (hthm2thm hth')
skalberg@14516
  2090
skalberg@14516
  2091
	    val rew = rewrite_hol4_term (concl_of td_th) thy4
wenzelm@17894
  2092
	    val th  = equal_elim rew (Thm.transfer thy4 td_th)
skalberg@14516
  2093
	    val c   = case HOLogic.dest_Trueprop (prop_of th) of
skalberg@14516
  2094
			  Const("Ex",exT) $ P =>
skalberg@14516
  2095
			  let
skalberg@14516
  2096
			      val PT = domain_type exT
skalberg@14516
  2097
			  in
skalberg@14516
  2098
			      Const("Collect",PT-->HOLogic.mk_setT (domain_type PT)) $ P
skalberg@14516
  2099
			  end
skalberg@14516
  2100
			| _ => error "Internal error in ProofKernel.new_typedefinition"
skalberg@14516
  2101
	    val tnames_string = if null tnames
skalberg@14516
  2102
				then ""
wenzelm@17917
  2103
				else "(" ^ commas tnames ^ ") "
skalberg@14516
  2104
	    val proc_prop = if null tnames
skalberg@14516
  2105
			    then smart_string_of_cterm
skalberg@14516
  2106
			    else Library.setmp show_all_types true smart_string_of_cterm
wenzelm@17894
  2107
	    val thy5 = add_dump ("typedef (open) " ^ tnames_string ^ (quotename tycname) ^ " = " ^ (proc_prop (cterm_of thy4 c)) ^ " " 
obua@17490
  2108
				 ^ (Syntax.string_of_mixfix tsyn) ^ "\n  by (rule typedef_helper,import " ^ thyname ^ " " ^ thmname ^ ")") thy4
obua@17490
  2109
	    
obua@17490
  2110
	    val thy6 = add_dump ("lemmas " ^ thmname ^ " = typedef_hol2hol4 [OF type_definition_" ^ tycname ^ "]") thy5
obua@17490
  2111
              
skalberg@14516
  2112
	    val _ = message "RESULT:"
skalberg@14516
  2113
	    val _ = if_debug pth hth'
skalberg@14516
  2114
	in
skalberg@14516
  2115
	    (thy6,hth')
skalberg@14516
  2116
	end
skalberg@14516
  2117
	handle e => (message "exception in new_type_definition"; print_exn e)
skalberg@14516
  2118
obua@17490
  2119
fun add_dump_constdefs thy defname constname rhs ty =
obua@17490
  2120
    let
obua@17490
  2121
	val n = quotename constname
obua@17490
  2122
	val t = string_of_ctyp (ctyp_of thy ty)
obua@17490
  2123
	val syn = Syntax.string_of_mixfix (mk_syn thy constname)
obua@17490
  2124
	(*val eq = smart_string_of_cterm (cterm_of thy (Const(rhs, ty)))*)
obua@17490
  2125
        val eq = quote (constname ^ " == "^rhs)
obua@17490
  2126
	val d = case defname of NONE => "" | SOME defname => (quotename defname)^" : "
obua@17490
  2127
    in
obua@17490
  2128
	add_dump ("constdefs\n  " ^ n ^ " :: \"" ^ t ^ "\" " ^ syn ^ "\n  " ^ d ^ eq) thy    
obua@17490
  2129
    end
obua@17490
  2130
obua@17594
  2131
fun add_dump_syntax thy name = 
obua@17594
  2132
    let
obua@17594
  2133
      val n = quotename name
obua@17594
  2134
      val syn = Syntax.string_of_mixfix (mk_syn thy name)
obua@17594
  2135
    in
obua@17594
  2136
      add_dump ("syntax\n  "^n^" :: _ "^syn) thy
obua@17594
  2137
    end
obua@17594
  2138
      
obua@17592
  2139
(*val type_intro_replay_history = ref (Symtab.empty:unit Symtab.table)
obua@17592
  2140
fun choose_upon_replay_history thy s dth = 
obua@17592
  2141
    case Symtab.lookup (!type_intro_replay_history) s of
obua@17592
  2142
	NONE => (type_intro_replay_history := Symtab.update (s, ()) (!type_intro_replay_history); dth)
obua@17592
  2143
      | SOME _ => HOLThm([], PureThy.get_thm thy (PureThy.Name s))
obua@17592
  2144
*)
obua@17592
  2145
skalberg@14516
  2146
fun type_introduction thyname thmname tycname abs_name rep_name (P,t) hth thy =
skalberg@14516
  2147
    case HOL4DefThy.get thy of
wenzelm@18678
  2148
	Replaying _ => (thy,
wenzelm@18678
  2149
          HOLThm([], PureThy.get_thm thy (PureThy.Name (thmname^"_@intern"))) handle ERROR _ => hth)
skalberg@14516
  2150
      | _ => 
skalberg@14516
  2151
	let
obua@17322
  2152
            val _ = message "TYPE_INTRO:"
skalberg@14516
  2153
	    val _ = if_debug pth hth
skalberg@14516
  2154
	    val _ = warning ("Introducing type " ^ tycname ^ " (with morphisms " ^ abs_name ^ " and " ^ rep_name ^ ")")
wenzelm@17894
  2155
	    val (HOLThm(rens,td_th)) = norm_hthm thy hth
skalberg@14516
  2156
	    val tT = type_of t
skalberg@14516
  2157
	    val light_nonempty' =
wenzelm@17894
  2158
		Drule.instantiate' [SOME (ctyp_of thy tT)]
wenzelm@17894
  2159
				   [SOME (cterm_of thy P),
wenzelm@17894
  2160
				    SOME (cterm_of thy t)] light_nonempty
skalberg@14516
  2161
	    val th2 = beta_eta_thm (td_th RS (beta_eta_thm light_nonempty'))
skalberg@14516
  2162
	    val c = case concl_of th2 of
skalberg@14516
  2163
			_ $ (Const("Ex",_) $ Abs(_,_,Const("op :",_) $ _ $ c)) => c
skalberg@14516
  2164
		      | _ => raise ERR "type_introduction" "Bad type definition theorem"
skalberg@14516
  2165
	    val tfrees = term_tfrees c
obua@17379
  2166
	    val tnames = sort string_ord (map fst tfrees)
wenzelm@14685
  2167
	    val tsyn = mk_syn thy tycname
skalberg@14516
  2168
	    val typ = (tycname,tnames,tsyn)
obua@19064
  2169
	    val (thy', typedef_info) = TypedefPackage.add_typedef_i false NONE typ c (SOME(rep_name,abs_name)) (rtac th2 1) thy
obua@19064
  2170
	    val _ = ImportRecorder.add_typedef NONE typ c (SOME(rep_name,abs_name)) th2
wenzelm@17894
  2171
	    val fulltyname = Sign.intern_type thy' tycname
obua@17379
  2172
	    val aty = Type (fulltyname, map mk_vartype tnames)
obua@17490
  2173
	    val abs_ty = tT --> aty
obua@17490
  2174
	    val rep_ty = aty --> tT
obua@17379
  2175
            val typedef_hol2hollight' = 
obua@17379
  2176
		Drule.instantiate' 
obua@17379
  2177
		    [SOME (ctyp_of thy' aty), SOME (ctyp_of thy' tT)] 
obua@17379
  2178
		    [NONE, NONE, NONE, SOME (cterm_of thy' (Free ("a", aty))), SOME (cterm_of thy' (Free ("r", tT)))]
obua@17379
  2179
                    typedef_hol2hollight
obua@17379
  2180
	    val th4 = (#type_definition typedef_info) RS typedef_hol2hollight'
obua@17379
  2181
            val _ = if Drule.tvars_of th4 = [] then () else raise ERR "type_introduction" "no type variables expected any more" 
obua@17379
  2182
            val _ = if Drule.vars_of th4 = [] then () else raise ERR "type_introduction" "no term variables expected any more"
obua@17322
  2183
	    val _ = message ("step 3: thyname="^thyname^", tycname="^tycname^", fulltyname="^fulltyname)
obua@17322
  2184
            val thy'' = add_hol4_type_mapping thyname tycname true fulltyname thy'
obua@19064
  2185
	    val _ = ImportRecorder.add_hol_type_mapping thyname tycname fulltyname
obua@17322
  2186
            val _ = message "step 4"
wenzelm@17894
  2187
	    val (hth' as HOLThm args) = norm_hthm thy'' (HOLThm(rens,th4))
skalberg@14516
  2188
	    val thy4 = add_hol4_pending thyname thmname args thy''
obua@19064
  2189
	    val _ = ImportRecorder.add_hol_pending thyname thmname (hthm2thm hth')
obua@17322
  2190
	   
obua@17624
  2191
	    val P' = P (* why !? #2 (Logic.dest_equals (concl_of (rewrite_hol4_term P thy4))) *)
skalberg@14516
  2192
	    val c   =
skalberg@14516
  2193
		let
skalberg@14516
  2194
		    val PT = type_of P'
skalberg@14516
  2195
		in
skalberg@14516
  2196
		    Const("Collect",PT-->HOLogic.mk_setT (domain_type PT)) $ P'
skalberg@14516
  2197
		end
obua@17322
  2198
	    
skalberg@14516
  2199
	    val tnames_string = if null tnames
skalberg@14516
  2200
				then ""
wenzelm@17917
  2201
				else "(" ^ commas tnames ^ ") "
skalberg@14516
  2202
	    val proc_prop = if null tnames
skalberg@14516
  2203
			    then smart_string_of_cterm
skalberg@14516
  2204
			    else Library.setmp show_all_types true smart_string_of_cterm
obua@17594
  2205
	    val thy = add_dump ("typedef (open) " ^ tnames_string ^ (quotename tycname) ^ 
wenzelm@17894
  2206
              " = " ^ (proc_prop (cterm_of thy4 c)) ^ " " ^ 
obua@17594
  2207
	      (Syntax.string_of_mixfix tsyn) ^ " morphisms "^
obua@17594
  2208
              (quote rep_name)^" "^(quote abs_name)^"\n"^ 
obua@17594
  2209
	      ("  apply (rule light_ex_imp_nonempty[where t="^
wenzelm@17894
  2210
              (proc_prop (cterm_of thy4 t))^"])\n"^              
obua@17594
  2211
	      ("  by (import " ^ thyname ^ " " ^ (quotename thmname) ^ ")"))) thy4
obua@17592
  2212
	    val str_aty = string_of_ctyp (ctyp_of thy aty)
obua@17594
  2213
            val thy = add_dump_syntax thy rep_name 
obua@17594
  2214
            val thy = add_dump_syntax thy abs_name
obua@17594
  2215
	    val thy = add_dump ("lemmas " ^ (quote (thmname^"_@intern")) ^ 
obua@17594
  2216
              " = typedef_hol2hollight \n"^
obua@17594
  2217
              "  [where a=\"a :: "^str_aty^"\" and r=r" ^
obua@17594
  2218
	      " ,\n   OF "^(quotename ("type_definition_" ^ tycname)) ^ "]") thy 
skalberg@14516
  2219
	    val _ = message "RESULT:"
skalberg@14516
  2220
	    val _ = if_debug pth hth'
skalberg@14516
  2221
	in
obua@17490
  2222
	    (thy,hth')
skalberg@14516
  2223
	end
skalberg@14516
  2224
	handle e => (message "exception in type_introduction"; print_exn e)
skalberg@14516
  2225
end
skalberg@14516
  2226
obua@17322
  2227
val prin = prin
obua@17322
  2228
skalberg@14516
  2229
end