src/HOL/Tools/choice_specification.ML
author wenzelm
Sun, 16 May 2010 00:02:11 +0200
changeset 36954 ef698bd61057
parent 36945 9bec62c10714
child 36960 01594f816e3a
permissions -rw-r--r--
prefer structure Parse_Spec;
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
31723
f5cafe803b55 discontinued ancient tradition to suffix certain ML module names with "_package"
haftmann
parents: 30364
diff changeset
     1
(*  Title:      HOL/Tools/choice_specification.ML
14115
65ec3f73d00b Added package for definition by specification.
skalberg
parents:
diff changeset
     2
    Author:     Sebastian Skalberg, TU Muenchen
65ec3f73d00b Added package for definition by specification.
skalberg
parents:
diff changeset
     3
65ec3f73d00b Added package for definition by specification.
skalberg
parents:
diff changeset
     4
Package for defining constants by specification.
65ec3f73d00b Added package for definition by specification.
skalberg
parents:
diff changeset
     5
*)
65ec3f73d00b Added package for definition by specification.
skalberg
parents:
diff changeset
     6
31723
f5cafe803b55 discontinued ancient tradition to suffix certain ML module names with "_package"
haftmann
parents: 30364
diff changeset
     7
signature CHOICE_SPECIFICATION =
14115
65ec3f73d00b Added package for definition by specification.
skalberg
parents:
diff changeset
     8
sig
35807
e4d1b5cbd429 added support for "specification" and "ax_specification" constructs to Nitpick
blanchet
parents: 35625
diff changeset
     9
  val close_form : term -> term
18729
216e31270509 simplified type attribute;
wenzelm
parents: 18418
diff changeset
    10
  val add_specification: string option -> (bstring * xstring * bool) list ->
216e31270509 simplified type attribute;
wenzelm
parents: 18418
diff changeset
    11
    theory * thm -> theory * thm
14115
65ec3f73d00b Added package for definition by specification.
skalberg
parents:
diff changeset
    12
end
65ec3f73d00b Added package for definition by specification.
skalberg
parents:
diff changeset
    13
31723
f5cafe803b55 discontinued ancient tradition to suffix certain ML module names with "_package"
haftmann
parents: 30364
diff changeset
    14
structure Choice_Specification: CHOICE_SPECIFICATION =
14115
65ec3f73d00b Added package for definition by specification.
skalberg
parents:
diff changeset
    15
struct
65ec3f73d00b Added package for definition by specification.
skalberg
parents:
diff changeset
    16
26478
9d1029ce0e13 eliminated quiete_mode ref (not really needed);
wenzelm
parents: 24867
diff changeset
    17
(* actual code *)
14115
65ec3f73d00b Added package for definition by specification.
skalberg
parents:
diff changeset
    18
35807
e4d1b5cbd429 added support for "specification" and "ax_specification" constructs to Nitpick
blanchet
parents: 35625
diff changeset
    19
fun close_form t =
e4d1b5cbd429 added support for "specification" and "ax_specification" constructs to Nitpick
blanchet
parents: 35625
diff changeset
    20
    fold_rev (fn (s, T) => fn t => HOLogic.mk_all (s, T, t))
e4d1b5cbd429 added support for "specification" and "ax_specification" constructs to Nitpick
blanchet
parents: 35625
diff changeset
    21
             (map dest_Free (OldTerm.term_frees t)) t
e4d1b5cbd429 added support for "specification" and "ax_specification" constructs to Nitpick
blanchet
parents: 35625
diff changeset
    22
14222
1e61f23fd359 Added axiomatic specifications (ax_specification).
skalberg
parents: 14167
diff changeset
    23
local
1e61f23fd359 Added axiomatic specifications (ax_specification).
skalberg
parents: 14167
diff changeset
    24
    fun mk_definitional [] arg = arg
1e61f23fd359 Added axiomatic specifications (ax_specification).
skalberg
parents: 14167
diff changeset
    25
      | mk_definitional ((thname,cname,covld)::cos) (thy,thm) =
17336
c05f72cff368 tuned IsarThy.theorem_i;
wenzelm
parents: 17057
diff changeset
    26
        case HOLogic.dest_Trueprop (concl_of thm) of
c05f72cff368 tuned IsarThy.theorem_i;
wenzelm
parents: 17057
diff changeset
    27
            Const("Ex",_) $ P =>
c05f72cff368 tuned IsarThy.theorem_i;
wenzelm
parents: 17057
diff changeset
    28
            let
c05f72cff368 tuned IsarThy.theorem_i;
wenzelm
parents: 17057
diff changeset
    29
                val ctype = domain_type (type_of P)
22578
b0eb5652f210 removed obsolete sign_of/sign_of_thm;
wenzelm
parents: 22101
diff changeset
    30
                val cname_full = Sign.intern_const thy cname
17336
c05f72cff368 tuned IsarThy.theorem_i;
wenzelm
parents: 17057
diff changeset
    31
                val cdefname = if thname = ""
30364
577edc39b501 moved basic algebra of long names from structure NameSpace to Long_Name;
wenzelm
parents: 30280
diff changeset
    32
                               then Thm.def_name (Long_Name.base_name cname)
17336
c05f72cff368 tuned IsarThy.theorem_i;
wenzelm
parents: 17057
diff changeset
    33
                               else thname
c05f72cff368 tuned IsarThy.theorem_i;
wenzelm
parents: 17057
diff changeset
    34
                val def_eq = Logic.mk_equals (Const(cname_full,ctype),
c05f72cff368 tuned IsarThy.theorem_i;
wenzelm
parents: 17057
diff changeset
    35
                                              HOLogic.choice_const ctype $  P)
29579
cb520b766e00 binding replaces bstring
haftmann
parents: 29265
diff changeset
    36
                val (thms, thy') = PureThy.add_defs covld [((Binding.name cdefname, def_eq),[])] thy
26478
9d1029ce0e13 eliminated quiete_mode ref (not really needed);
wenzelm
parents: 24867
diff changeset
    37
                val thm' = [thm,hd thms] MRS @{thm exE_some}
17336
c05f72cff368 tuned IsarThy.theorem_i;
wenzelm
parents: 17057
diff changeset
    38
            in
c05f72cff368 tuned IsarThy.theorem_i;
wenzelm
parents: 17057
diff changeset
    39
                mk_definitional cos (thy',thm')
c05f72cff368 tuned IsarThy.theorem_i;
wenzelm
parents: 17057
diff changeset
    40
            end
c05f72cff368 tuned IsarThy.theorem_i;
wenzelm
parents: 17057
diff changeset
    41
          | _ => raise THM ("Internal error: Bad specification theorem",0,[thm])
14222
1e61f23fd359 Added axiomatic specifications (ax_specification).
skalberg
parents: 14167
diff changeset
    42
1e61f23fd359 Added axiomatic specifications (ax_specification).
skalberg
parents: 14167
diff changeset
    43
    fun mk_axiomatic axname cos arg =
17336
c05f72cff368 tuned IsarThy.theorem_i;
wenzelm
parents: 17057
diff changeset
    44
        let
c05f72cff368 tuned IsarThy.theorem_i;
wenzelm
parents: 17057
diff changeset
    45
            fun process [] (thy,tm) =
c05f72cff368 tuned IsarThy.theorem_i;
wenzelm
parents: 17057
diff changeset
    46
                let
35897
8758895ea413 eliminated old-style Drule.add_axiom in favour of Specification.axiom, with explicit Drule.export_without_context to imitate the old behaviour;
wenzelm
parents: 35856
diff changeset
    47
                    val (thm, thy') =
8758895ea413 eliminated old-style Drule.add_axiom in favour of Specification.axiom, with explicit Drule.export_without_context to imitate the old behaviour;
wenzelm
parents: 35856
diff changeset
    48
                      Specification.axiom ((Binding.name axname, []), HOLogic.mk_Trueprop tm) thy
17336
c05f72cff368 tuned IsarThy.theorem_i;
wenzelm
parents: 17057
diff changeset
    49
                in
35897
8758895ea413 eliminated old-style Drule.add_axiom in favour of Specification.axiom, with explicit Drule.export_without_context to imitate the old behaviour;
wenzelm
parents: 35856
diff changeset
    50
                    (thy', Drule.export_without_context thm)
17336
c05f72cff368 tuned IsarThy.theorem_i;
wenzelm
parents: 17057
diff changeset
    51
                end
c05f72cff368 tuned IsarThy.theorem_i;
wenzelm
parents: 17057
diff changeset
    52
              | process ((thname,cname,covld)::cos) (thy,tm) =
c05f72cff368 tuned IsarThy.theorem_i;
wenzelm
parents: 17057
diff changeset
    53
                case tm of
c05f72cff368 tuned IsarThy.theorem_i;
wenzelm
parents: 17057
diff changeset
    54
                    Const("Ex",_) $ P =>
c05f72cff368 tuned IsarThy.theorem_i;
wenzelm
parents: 17057
diff changeset
    55
                    let
c05f72cff368 tuned IsarThy.theorem_i;
wenzelm
parents: 17057
diff changeset
    56
                        val ctype = domain_type (type_of P)
22578
b0eb5652f210 removed obsolete sign_of/sign_of_thm;
wenzelm
parents: 22101
diff changeset
    57
                        val cname_full = Sign.intern_const thy cname
17336
c05f72cff368 tuned IsarThy.theorem_i;
wenzelm
parents: 17057
diff changeset
    58
                        val cdefname = if thname = ""
30364
577edc39b501 moved basic algebra of long names from structure NameSpace to Long_Name;
wenzelm
parents: 30280
diff changeset
    59
                                       then Thm.def_name (Long_Name.base_name cname)
17336
c05f72cff368 tuned IsarThy.theorem_i;
wenzelm
parents: 17057
diff changeset
    60
                                       else thname
c05f72cff368 tuned IsarThy.theorem_i;
wenzelm
parents: 17057
diff changeset
    61
                        val co = Const(cname_full,ctype)
c05f72cff368 tuned IsarThy.theorem_i;
wenzelm
parents: 17057
diff changeset
    62
                        val thy' = Theory.add_finals_i covld [co] thy
c05f72cff368 tuned IsarThy.theorem_i;
wenzelm
parents: 17057
diff changeset
    63
                        val tm' = case P of
c05f72cff368 tuned IsarThy.theorem_i;
wenzelm
parents: 17057
diff changeset
    64
                                      Abs(_, _, bodt) => subst_bound (co, bodt)
c05f72cff368 tuned IsarThy.theorem_i;
wenzelm
parents: 17057
diff changeset
    65
                                    | _ => P $ co
c05f72cff368 tuned IsarThy.theorem_i;
wenzelm
parents: 17057
diff changeset
    66
                    in
c05f72cff368 tuned IsarThy.theorem_i;
wenzelm
parents: 17057
diff changeset
    67
                        process cos (thy',tm')
c05f72cff368 tuned IsarThy.theorem_i;
wenzelm
parents: 17057
diff changeset
    68
                    end
c05f72cff368 tuned IsarThy.theorem_i;
wenzelm
parents: 17057
diff changeset
    69
                  | _ => raise TERM ("Internal error: Bad specification theorem",[tm])
c05f72cff368 tuned IsarThy.theorem_i;
wenzelm
parents: 17057
diff changeset
    70
        in
c05f72cff368 tuned IsarThy.theorem_i;
wenzelm
parents: 17057
diff changeset
    71
            process cos arg
c05f72cff368 tuned IsarThy.theorem_i;
wenzelm
parents: 17057
diff changeset
    72
        end
14115
65ec3f73d00b Added package for definition by specification.
skalberg
parents:
diff changeset
    73
14222
1e61f23fd359 Added axiomatic specifications (ax_specification).
skalberg
parents: 14167
diff changeset
    74
in
1e61f23fd359 Added axiomatic specifications (ax_specification).
skalberg
parents: 14167
diff changeset
    75
fun proc_exprop axiomatic cos arg =
1e61f23fd359 Added axiomatic specifications (ax_specification).
skalberg
parents: 14167
diff changeset
    76
    case axiomatic of
17336
c05f72cff368 tuned IsarThy.theorem_i;
wenzelm
parents: 17057
diff changeset
    77
        SOME axname => mk_axiomatic axname cos (apsnd (HOLogic.dest_Trueprop o concl_of) arg)
15531
08c8dad8e399 Deleted Library.option type.
skalberg
parents: 14769
diff changeset
    78
      | NONE => mk_definitional cos arg
14222
1e61f23fd359 Added axiomatic specifications (ax_specification).
skalberg
parents: 14167
diff changeset
    79
end
1e61f23fd359 Added axiomatic specifications (ax_specification).
skalberg
parents: 14167
diff changeset
    80
36618
7a0990473e03 specification goal: eliminated redundant Thm.legacy_freezeT -- the goal is properly declared and should always produce fixed types in the result;
wenzelm
parents: 36615
diff changeset
    81
fun add_specification axiomatic cos =
7a0990473e03 specification goal: eliminated redundant Thm.legacy_freezeT -- the goal is properly declared and should always produce fixed types in the result;
wenzelm
parents: 36615
diff changeset
    82
    proc_exprop axiomatic cos
7a0990473e03 specification goal: eliminated redundant Thm.legacy_freezeT -- the goal is properly declared and should always produce fixed types in the result;
wenzelm
parents: 36615
diff changeset
    83
    #> apsnd Drule.export_without_context
14115
65ec3f73d00b Added package for definition by specification.
skalberg
parents:
diff changeset
    84
18729
216e31270509 simplified type attribute;
wenzelm
parents: 18418
diff changeset
    85
14115
65ec3f73d00b Added package for definition by specification.
skalberg
parents:
diff changeset
    86
(* Collect all intances of constants in term *)
65ec3f73d00b Added package for definition by specification.
skalberg
parents:
diff changeset
    87
65ec3f73d00b Added package for definition by specification.
skalberg
parents:
diff changeset
    88
fun collect_consts (        t $ u,tms) = collect_consts (u,collect_consts (t,tms))
65ec3f73d00b Added package for definition by specification.
skalberg
parents:
diff changeset
    89
  | collect_consts (   Abs(_,_,t),tms) = collect_consts (t,tms)
18921
f47c46d7d654 canonical member/insert/merge;
wenzelm
parents: 18799
diff changeset
    90
  | collect_consts (tm as Const _,tms) = insert (op aconv) tm tms
14115
65ec3f73d00b Added package for definition by specification.
skalberg
parents:
diff changeset
    91
  | collect_consts (            _,tms) = tms
65ec3f73d00b Added package for definition by specification.
skalberg
parents:
diff changeset
    92
35845
e5980f0ad025 renamed varify/unvarify operations to varify_global/unvarify_global to emphasize that these only work in a global situation;
wenzelm
parents: 35807
diff changeset
    93
(* Complementing Type.varify_global... *)
14115
65ec3f73d00b Added package for definition by specification.
skalberg
parents:
diff changeset
    94
35845
e5980f0ad025 renamed varify/unvarify operations to varify_global/unvarify_global to emphasize that these only work in a global situation;
wenzelm
parents: 35807
diff changeset
    95
fun unvarify_global t fmap =
14115
65ec3f73d00b Added package for definition by specification.
skalberg
parents:
diff changeset
    96
    let
17336
c05f72cff368 tuned IsarThy.theorem_i;
wenzelm
parents: 17057
diff changeset
    97
        val fmap' = map Library.swap fmap
17377
afaa031ed4da introduced AList.lookup
haftmann
parents: 17336
diff changeset
    98
        fun unthaw (f as (a, S)) =
afaa031ed4da introduced AList.lookup
haftmann
parents: 17336
diff changeset
    99
            (case AList.lookup (op =) fmap' a of
17336
c05f72cff368 tuned IsarThy.theorem_i;
wenzelm
parents: 17057
diff changeset
   100
                 NONE => TVar f
17377
afaa031ed4da introduced AList.lookup
haftmann
parents: 17336
diff changeset
   101
               | SOME (b, _) => TFree (b, S))
14115
65ec3f73d00b Added package for definition by specification.
skalberg
parents:
diff changeset
   102
    in
20548
8ef25fe585a8 renamed Term.map_term_types to Term.map_types (cf. Term.fold_types);
wenzelm
parents: 20344
diff changeset
   103
        map_types (map_type_tvar unthaw) t
14115
65ec3f73d00b Added package for definition by specification.
skalberg
parents:
diff changeset
   104
    end
65ec3f73d00b Added package for definition by specification.
skalberg
parents:
diff changeset
   105
65ec3f73d00b Added package for definition by specification.
skalberg
parents:
diff changeset
   106
(* The syntactic meddling needed to setup add_specification for work *)
65ec3f73d00b Added package for definition by specification.
skalberg
parents:
diff changeset
   107
17336
c05f72cff368 tuned IsarThy.theorem_i;
wenzelm
parents: 17057
diff changeset
   108
fun process_spec axiomatic cos alt_props thy =
14115
65ec3f73d00b Added package for definition by specification.
skalberg
parents:
diff changeset
   109
    let
17336
c05f72cff368 tuned IsarThy.theorem_i;
wenzelm
parents: 17057
diff changeset
   110
        fun zip3 [] [] [] = []
c05f72cff368 tuned IsarThy.theorem_i;
wenzelm
parents: 17057
diff changeset
   111
          | zip3 (x::xs) (y::ys) (z::zs) = (x,y,z)::zip3 xs ys zs
31723
f5cafe803b55 discontinued ancient tradition to suffix certain ML module names with "_package"
haftmann
parents: 30364
diff changeset
   112
          | zip3 _ _ _ = error "Choice_Specification.process_spec internal error"
14167
3c29bba24aa4 Improved the error messages (slightly).
skalberg
parents: 14166
diff changeset
   113
17336
c05f72cff368 tuned IsarThy.theorem_i;
wenzelm
parents: 17057
diff changeset
   114
        fun myfoldr f [x] = x
c05f72cff368 tuned IsarThy.theorem_i;
wenzelm
parents: 17057
diff changeset
   115
          | myfoldr f (x::xs) = f (x,myfoldr f xs)
31723
f5cafe803b55 discontinued ancient tradition to suffix certain ML module names with "_package"
haftmann
parents: 30364
diff changeset
   116
          | myfoldr f [] = error "Choice_Specification.process_spec internal error"
14164
8c3fab596219 Allowed for splitting the specification over several lemmas.
skalberg
parents: 14122
diff changeset
   117
17895
6274b426594b moved helper lemma to HilbertChoice.thy;
wenzelm
parents: 17377
diff changeset
   118
        val rew_imps = alt_props |>
35625
9c818cab0dd0 modernized structure Object_Logic;
wenzelm
parents: 35021
diff changeset
   119
          map (Object_Logic.atomize o Thm.cterm_of thy o Syntax.read_prop_global thy o snd)
17895
6274b426594b moved helper lemma to HilbertChoice.thy;
wenzelm
parents: 17377
diff changeset
   120
        val props' = rew_imps |>
22902
ac833b4bb7ee moved some Drule operations to Thm (see more_thm.ML);
wenzelm
parents: 22709
diff changeset
   121
          map (HOLogic.dest_Trueprop o term_of o snd o Thm.dest_equals o cprop_of)
14166
1ed8f955727d Cleaned up the code.
skalberg
parents: 14164
diff changeset
   122
17336
c05f72cff368 tuned IsarThy.theorem_i;
wenzelm
parents: 17057
diff changeset
   123
        fun proc_single prop =
c05f72cff368 tuned IsarThy.theorem_i;
wenzelm
parents: 17057
diff changeset
   124
            let
29265
5b4247055bd7 moved old add_term_vars, add_term_frees etc. to structure OldTerm;
wenzelm
parents: 29006
diff changeset
   125
                val frees = OldTerm.term_frees prop
21858
05f57309170c avoid conflict with Alice keywords: renamed pack -> implode, unpack -> explode, any -> many, avoided assert;
wenzelm
parents: 21434
diff changeset
   126
                val _ = forall (fn v => Sign.of_sort thy (type_of v,HOLogic.typeS)) frees
05f57309170c avoid conflict with Alice keywords: renamed pack -> implode, unpack -> explode, any -> many, avoided assert;
wenzelm
parents: 21434
diff changeset
   127
                  orelse error "Specificaton: Only free variables of sort 'type' allowed"
35807
e4d1b5cbd429 added support for "specification" and "ax_specification" constructs to Nitpick
blanchet
parents: 35625
diff changeset
   128
                val prop_closed = close_form prop
17336
c05f72cff368 tuned IsarThy.theorem_i;
wenzelm
parents: 17057
diff changeset
   129
            in
c05f72cff368 tuned IsarThy.theorem_i;
wenzelm
parents: 17057
diff changeset
   130
                (prop_closed,frees)
c05f72cff368 tuned IsarThy.theorem_i;
wenzelm
parents: 17057
diff changeset
   131
            end
14166
1ed8f955727d Cleaned up the code.
skalberg
parents: 14164
diff changeset
   132
17336
c05f72cff368 tuned IsarThy.theorem_i;
wenzelm
parents: 17057
diff changeset
   133
        val props'' = map proc_single props'
c05f72cff368 tuned IsarThy.theorem_i;
wenzelm
parents: 17057
diff changeset
   134
        val frees = map snd props''
c05f72cff368 tuned IsarThy.theorem_i;
wenzelm
parents: 17057
diff changeset
   135
        val prop  = myfoldr HOLogic.mk_conj (map fst props'')
17895
6274b426594b moved helper lemma to HilbertChoice.thy;
wenzelm
parents: 17377
diff changeset
   136
        val cprop = cterm_of thy (HOLogic.mk_Trueprop prop)
14164
8c3fab596219 Allowed for splitting the specification over several lemmas.
skalberg
parents: 14122
diff changeset
   137
35845
e5980f0ad025 renamed varify/unvarify operations to varify_global/unvarify_global to emphasize that these only work in a global situation;
wenzelm
parents: 35807
diff changeset
   138
        val (vmap, prop_thawed) = Type.varify_global [] prop
17336
c05f72cff368 tuned IsarThy.theorem_i;
wenzelm
parents: 17057
diff changeset
   139
        val thawed_prop_consts = collect_consts (prop_thawed,[])
c05f72cff368 tuned IsarThy.theorem_i;
wenzelm
parents: 17057
diff changeset
   140
        val (altcos,overloaded) = Library.split_list cos
c05f72cff368 tuned IsarThy.theorem_i;
wenzelm
parents: 17057
diff changeset
   141
        val (names,sconsts) = Library.split_list altcos
24707
dfeb98f84e93 Syntax.parse/check/read;
wenzelm
parents: 23591
diff changeset
   142
        val consts = map (Syntax.read_term_global thy) sconsts
21858
05f57309170c avoid conflict with Alice keywords: renamed pack -> implode, unpack -> explode, any -> many, avoided assert;
wenzelm
parents: 21434
diff changeset
   143
        val _ = not (Library.exists (not o Term.is_Const) consts)
05f57309170c avoid conflict with Alice keywords: renamed pack -> implode, unpack -> explode, any -> many, avoided assert;
wenzelm
parents: 21434
diff changeset
   144
          orelse error "Specification: Non-constant found as parameter"
14166
1ed8f955727d Cleaned up the code.
skalberg
parents: 14164
diff changeset
   145
17336
c05f72cff368 tuned IsarThy.theorem_i;
wenzelm
parents: 17057
diff changeset
   146
        fun proc_const c =
c05f72cff368 tuned IsarThy.theorem_i;
wenzelm
parents: 17057
diff changeset
   147
            let
35845
e5980f0ad025 renamed varify/unvarify operations to varify_global/unvarify_global to emphasize that these only work in a global situation;
wenzelm
parents: 35807
diff changeset
   148
                val (_, c') = Type.varify_global [] c
17336
c05f72cff368 tuned IsarThy.theorem_i;
wenzelm
parents: 17057
diff changeset
   149
                val (cname,ctyp) = dest_Const c'
c05f72cff368 tuned IsarThy.theorem_i;
wenzelm
parents: 17057
diff changeset
   150
            in
33317
b4534348b8fd standardized filter/filter_out;
wenzelm
parents: 33245
diff changeset
   151
                case filter (fn t => let val (name,typ) = dest_Const t
19414
a21431e996bf Sign.typ_equiv;
wenzelm
parents: 18921
diff changeset
   152
                                     in name = cname andalso Sign.typ_equiv thy (typ, ctyp)
17336
c05f72cff368 tuned IsarThy.theorem_i;
wenzelm
parents: 17057
diff changeset
   153
                                     end) thawed_prop_consts of
26939
1035c89b4c02 moved global pretty/string_of functions from Sign to Syntax;
wenzelm
parents: 26928
diff changeset
   154
                    [] => error ("Specification: No suitable instances of constant \"" ^ Syntax.string_of_term_global thy c ^ "\" found")
35845
e5980f0ad025 renamed varify/unvarify operations to varify_global/unvarify_global to emphasize that these only work in a global situation;
wenzelm
parents: 35807
diff changeset
   155
                  | [cf] => unvarify_global cf vmap
26939
1035c89b4c02 moved global pretty/string_of functions from Sign to Syntax;
wenzelm
parents: 26928
diff changeset
   156
                  | _ => error ("Specification: Several variations of \"" ^ Syntax.string_of_term_global thy c ^ "\" found (try applying explicit type constraints)")
17336
c05f72cff368 tuned IsarThy.theorem_i;
wenzelm
parents: 17057
diff changeset
   157
            end
c05f72cff368 tuned IsarThy.theorem_i;
wenzelm
parents: 17057
diff changeset
   158
        val proc_consts = map proc_const consts
33339
d41f77196338 eliminated some old folds;
wenzelm
parents: 33317
diff changeset
   159
        fun mk_exist c prop =
17336
c05f72cff368 tuned IsarThy.theorem_i;
wenzelm
parents: 17057
diff changeset
   160
            let
c05f72cff368 tuned IsarThy.theorem_i;
wenzelm
parents: 17057
diff changeset
   161
                val T = type_of c
30364
577edc39b501 moved basic algebra of long names from structure NameSpace to Long_Name;
wenzelm
parents: 30280
diff changeset
   162
                val cname = Long_Name.base_name (fst (dest_Const c))
17336
c05f72cff368 tuned IsarThy.theorem_i;
wenzelm
parents: 17057
diff changeset
   163
                val vname = if Syntax.is_identifier cname
c05f72cff368 tuned IsarThy.theorem_i;
wenzelm
parents: 17057
diff changeset
   164
                            then cname
c05f72cff368 tuned IsarThy.theorem_i;
wenzelm
parents: 17057
diff changeset
   165
                            else "x"
c05f72cff368 tuned IsarThy.theorem_i;
wenzelm
parents: 17057
diff changeset
   166
            in
c05f72cff368 tuned IsarThy.theorem_i;
wenzelm
parents: 17057
diff changeset
   167
                HOLogic.exists_const T $ Abs(vname,T,Term.abstract_over (c,prop))
c05f72cff368 tuned IsarThy.theorem_i;
wenzelm
parents: 17057
diff changeset
   168
            end
33339
d41f77196338 eliminated some old folds;
wenzelm
parents: 33317
diff changeset
   169
        val ex_prop = fold_rev mk_exist proc_consts prop
17336
c05f72cff368 tuned IsarThy.theorem_i;
wenzelm
parents: 17057
diff changeset
   170
        val cnames = map (fst o dest_Const) proc_consts
c05f72cff368 tuned IsarThy.theorem_i;
wenzelm
parents: 17057
diff changeset
   171
        fun post_process (arg as (thy,thm)) =
c05f72cff368 tuned IsarThy.theorem_i;
wenzelm
parents: 17057
diff changeset
   172
            let
33245
65232054ffd0 eliminated some old folds;
wenzelm
parents: 32957
diff changeset
   173
                fun inst_all thy v thm =
17336
c05f72cff368 tuned IsarThy.theorem_i;
wenzelm
parents: 17057
diff changeset
   174
                    let
17895
6274b426594b moved helper lemma to HilbertChoice.thy;
wenzelm
parents: 17377
diff changeset
   175
                        val cv = cterm_of thy v
17336
c05f72cff368 tuned IsarThy.theorem_i;
wenzelm
parents: 17057
diff changeset
   176
                        val cT = ctyp_of_term cv
c05f72cff368 tuned IsarThy.theorem_i;
wenzelm
parents: 17057
diff changeset
   177
                        val spec' = instantiate' [SOME cT] [NONE,SOME cv] spec
c05f72cff368 tuned IsarThy.theorem_i;
wenzelm
parents: 17057
diff changeset
   178
                    in
c05f72cff368 tuned IsarThy.theorem_i;
wenzelm
parents: 17057
diff changeset
   179
                        thm RS spec'
c05f72cff368 tuned IsarThy.theorem_i;
wenzelm
parents: 17057
diff changeset
   180
                    end
22578
b0eb5652f210 removed obsolete sign_of/sign_of_thm;
wenzelm
parents: 22101
diff changeset
   181
                fun remove_alls frees thm =
33245
65232054ffd0 eliminated some old folds;
wenzelm
parents: 32957
diff changeset
   182
                    fold (inst_all (Thm.theory_of_thm thm)) frees thm
17336
c05f72cff368 tuned IsarThy.theorem_i;
wenzelm
parents: 17057
diff changeset
   183
                fun process_single ((name,atts),rew_imp,frees) args =
c05f72cff368 tuned IsarThy.theorem_i;
wenzelm
parents: 17057
diff changeset
   184
                    let
c05f72cff368 tuned IsarThy.theorem_i;
wenzelm
parents: 17057
diff changeset
   185
                        fun undo_imps thm =
36945
9bec62c10714 less pervasive names from structure Thm;
wenzelm
parents: 36618
diff changeset
   186
                            Thm.equal_elim (Thm.symmetric rew_imp) thm
14164
8c3fab596219 Allowed for splitting the specification over several lemmas.
skalberg
parents: 14122
diff changeset
   187
18358
0a733e11021a re-oriented some result tuples in PureThy
haftmann
parents: 17895
diff changeset
   188
                        fun add_final (arg as (thy, thm)) =
17336
c05f72cff368 tuned IsarThy.theorem_i;
wenzelm
parents: 17057
diff changeset
   189
                            if name = ""
18358
0a733e11021a re-oriented some result tuples in PureThy
haftmann
parents: 17895
diff changeset
   190
                            then arg |> Library.swap
32091
30e2ffbba718 proper context for Display.pretty_thm etc. or old-style versions Display.pretty_thm_global, Display.pretty_thm_without_context etc.;
wenzelm
parents: 31723
diff changeset
   191
                            else (writeln ("  " ^ name ^ ": " ^ Display.string_of_thm_global thy thm);
29579
cb520b766e00 binding replaces bstring
haftmann
parents: 29265
diff changeset
   192
                                  PureThy.store_thm (Binding.name name, thm) thy)
17336
c05f72cff368 tuned IsarThy.theorem_i;
wenzelm
parents: 17057
diff changeset
   193
                    in
c05f72cff368 tuned IsarThy.theorem_i;
wenzelm
parents: 17057
diff changeset
   194
                        args |> apsnd (remove_alls frees)
c05f72cff368 tuned IsarThy.theorem_i;
wenzelm
parents: 17057
diff changeset
   195
                             |> apsnd undo_imps
35021
c839a4c670c6 renamed old-style Drule.standard to Drule.export_without_context, to emphasize that this is in no way a standard operation;
wenzelm
parents: 33339
diff changeset
   196
                             |> apsnd Drule.export_without_context
35807
e4d1b5cbd429 added support for "specification" and "ax_specification" constructs to Nitpick
blanchet
parents: 35625
diff changeset
   197
                             |> Thm.theory_attributes (map (Attrib.attribute thy)
e4d1b5cbd429 added support for "specification" and "ax_specification" constructs to Nitpick
blanchet
parents: 35625
diff changeset
   198
                                                           (Attrib.internal (K Nitpick_Choice_Specs.add) :: atts))
17336
c05f72cff368 tuned IsarThy.theorem_i;
wenzelm
parents: 17057
diff changeset
   199
                             |> add_final
18358
0a733e11021a re-oriented some result tuples in PureThy
haftmann
parents: 17895
diff changeset
   200
                             |> Library.swap
17336
c05f72cff368 tuned IsarThy.theorem_i;
wenzelm
parents: 17057
diff changeset
   201
                    end
14164
8c3fab596219 Allowed for splitting the specification over several lemmas.
skalberg
parents: 14122
diff changeset
   202
17336
c05f72cff368 tuned IsarThy.theorem_i;
wenzelm
parents: 17057
diff changeset
   203
                fun process_all [proc_arg] args =
c05f72cff368 tuned IsarThy.theorem_i;
wenzelm
parents: 17057
diff changeset
   204
                    process_single proc_arg args
c05f72cff368 tuned IsarThy.theorem_i;
wenzelm
parents: 17057
diff changeset
   205
                  | process_all (proc_arg::rest) (thy,thm) =
c05f72cff368 tuned IsarThy.theorem_i;
wenzelm
parents: 17057
diff changeset
   206
                    let
c05f72cff368 tuned IsarThy.theorem_i;
wenzelm
parents: 17057
diff changeset
   207
                        val single_th = thm RS conjunct1
c05f72cff368 tuned IsarThy.theorem_i;
wenzelm
parents: 17057
diff changeset
   208
                        val rest_th   = thm RS conjunct2
c05f72cff368 tuned IsarThy.theorem_i;
wenzelm
parents: 17057
diff changeset
   209
                        val (thy',_)  = process_single proc_arg (thy,single_th)
c05f72cff368 tuned IsarThy.theorem_i;
wenzelm
parents: 17057
diff changeset
   210
                    in
c05f72cff368 tuned IsarThy.theorem_i;
wenzelm
parents: 17057
diff changeset
   211
                        process_all rest (thy',rest_th)
c05f72cff368 tuned IsarThy.theorem_i;
wenzelm
parents: 17057
diff changeset
   212
                    end
31723
f5cafe803b55 discontinued ancient tradition to suffix certain ML module names with "_package"
haftmann
parents: 30364
diff changeset
   213
                  | process_all [] _ = error "Choice_Specification.process_spec internal error"
17336
c05f72cff368 tuned IsarThy.theorem_i;
wenzelm
parents: 17057
diff changeset
   214
                val alt_names = map fst alt_props
c05f72cff368 tuned IsarThy.theorem_i;
wenzelm
parents: 17057
diff changeset
   215
                val _ = if exists (fn(name,_) => not (name = "")) alt_names
c05f72cff368 tuned IsarThy.theorem_i;
wenzelm
parents: 17057
diff changeset
   216
                        then writeln "specification"
c05f72cff368 tuned IsarThy.theorem_i;
wenzelm
parents: 17057
diff changeset
   217
                        else ()
c05f72cff368 tuned IsarThy.theorem_i;
wenzelm
parents: 17057
diff changeset
   218
            in
36618
7a0990473e03 specification goal: eliminated redundant Thm.legacy_freezeT -- the goal is properly declared and should always produce fixed types in the result;
wenzelm
parents: 36615
diff changeset
   219
                arg |> apsnd Thm.unvarify_global
17336
c05f72cff368 tuned IsarThy.theorem_i;
wenzelm
parents: 17057
diff changeset
   220
                    |> process_all (zip3 alt_names rew_imps frees)
c05f72cff368 tuned IsarThy.theorem_i;
wenzelm
parents: 17057
diff changeset
   221
            end
20903
905effde63d9 attribute: Context.mapping;
wenzelm
parents: 20548
diff changeset
   222
36618
7a0990473e03 specification goal: eliminated redundant Thm.legacy_freezeT -- the goal is properly declared and should always produce fixed types in the result;
wenzelm
parents: 36615
diff changeset
   223
      fun after_qed [[thm]] = (ProofContext.theory (fn thy =>
7a0990473e03 specification goal: eliminated redundant Thm.legacy_freezeT -- the goal is properly declared and should always produce fixed types in the result;
wenzelm
parents: 36615
diff changeset
   224
        #1 (post_process (add_specification axiomatic (zip3 names cnames overloaded) (thy, thm)))));
14115
65ec3f73d00b Added package for definition by specification.
skalberg
parents:
diff changeset
   225
    in
20903
905effde63d9 attribute: Context.mapping;
wenzelm
parents: 20548
diff changeset
   226
      thy
36610
bafd82950e24 renamed ProofContext.init to ProofContext.init_global to emphasize that this is not the real thing;
wenzelm
parents: 36323
diff changeset
   227
      |> ProofContext.init_global
36618
7a0990473e03 specification goal: eliminated redundant Thm.legacy_freezeT -- the goal is properly declared and should always produce fixed types in the result;
wenzelm
parents: 36615
diff changeset
   228
      |> Variable.declare_term ex_prop
36323
655e2d74de3a modernized naming conventions of main Isar proof elements;
wenzelm
parents: 35897
diff changeset
   229
      |> Proof.theorem NONE after_qed [[(HOLogic.mk_Trueprop ex_prop, [])]]
20903
905effde63d9 attribute: Context.mapping;
wenzelm
parents: 20548
diff changeset
   230
    end;
14115
65ec3f73d00b Added package for definition by specification.
skalberg
parents:
diff changeset
   231
17336
c05f72cff368 tuned IsarThy.theorem_i;
wenzelm
parents: 17057
diff changeset
   232
14115
65ec3f73d00b Added package for definition by specification.
skalberg
parents:
diff changeset
   233
(* outer syntax *)
65ec3f73d00b Added package for definition by specification.
skalberg
parents:
diff changeset
   234
17057
0934ac31985f OuterKeyword;
wenzelm
parents: 15945
diff changeset
   235
local structure P = OuterParse and K = OuterKeyword in
14115
65ec3f73d00b Added package for definition by specification.
skalberg
parents:
diff changeset
   236
14116
63337d8e6e0f Added optional theorem names for the constant definitions added during
skalberg
parents: 14115
diff changeset
   237
val opt_name = Scan.optional (P.name --| P.$$$ ":") ""
17336
c05f72cff368 tuned IsarThy.theorem_i;
wenzelm
parents: 17057
diff changeset
   238
val opt_overloaded = P.opt_keyword "overloaded";
14116
63337d8e6e0f Added optional theorem names for the constant definitions added during
skalberg
parents: 14115
diff changeset
   239
14115
65ec3f73d00b Added package for definition by specification.
skalberg
parents:
diff changeset
   240
val specification_decl =
17336
c05f72cff368 tuned IsarThy.theorem_i;
wenzelm
parents: 17057
diff changeset
   241
  P.$$$ "(" |-- Scan.repeat1 (opt_name -- P.term -- opt_overloaded) --| P.$$$ ")" --
36954
ef698bd61057 prefer structure Parse_Spec;
wenzelm
parents: 36945
diff changeset
   242
          Scan.repeat1 ((Parse_Spec.opt_thm_name ":" >> apfst Binding.name_of) -- P.prop)
14115
65ec3f73d00b Added package for definition by specification.
skalberg
parents:
diff changeset
   243
24867
e5b55d7be9bb simplified interfaces for outer syntax;
wenzelm
parents: 24707
diff changeset
   244
val _ =
14115
65ec3f73d00b Added package for definition by specification.
skalberg
parents:
diff changeset
   245
  OuterSyntax.command "specification" "define constants by specification" K.thy_goal
14164
8c3fab596219 Allowed for splitting the specification over several lemmas.
skalberg
parents: 14122
diff changeset
   246
    (specification_decl >> (fn (cos,alt_props) =>
17336
c05f72cff368 tuned IsarThy.theorem_i;
wenzelm
parents: 17057
diff changeset
   247
                               Toplevel.print o (Toplevel.theory_to_proof
c05f72cff368 tuned IsarThy.theorem_i;
wenzelm
parents: 17057
diff changeset
   248
                                                     (process_spec NONE cos alt_props))))
14222
1e61f23fd359 Added axiomatic specifications (ax_specification).
skalberg
parents: 14167
diff changeset
   249
1e61f23fd359 Added axiomatic specifications (ax_specification).
skalberg
parents: 14167
diff changeset
   250
val ax_specification_decl =
1e61f23fd359 Added axiomatic specifications (ax_specification).
skalberg
parents: 14167
diff changeset
   251
    P.name --
1e61f23fd359 Added axiomatic specifications (ax_specification).
skalberg
parents: 14167
diff changeset
   252
    (P.$$$ "(" |-- Scan.repeat1 (opt_name -- P.term -- opt_overloaded) --| P.$$$ ")" --
36954
ef698bd61057 prefer structure Parse_Spec;
wenzelm
parents: 36945
diff changeset
   253
           Scan.repeat1 ((Parse_Spec.opt_thm_name ":" >> apfst Binding.name_of) -- P.prop))
14115
65ec3f73d00b Added package for definition by specification.
skalberg
parents:
diff changeset
   254
24867
e5b55d7be9bb simplified interfaces for outer syntax;
wenzelm
parents: 24707
diff changeset
   255
val _ =
14222
1e61f23fd359 Added axiomatic specifications (ax_specification).
skalberg
parents: 14167
diff changeset
   256
  OuterSyntax.command "ax_specification" "define constants by specification" K.thy_goal
1e61f23fd359 Added axiomatic specifications (ax_specification).
skalberg
parents: 14167
diff changeset
   257
    (ax_specification_decl >> (fn (axname,(cos,alt_props)) =>
17336
c05f72cff368 tuned IsarThy.theorem_i;
wenzelm
parents: 17057
diff changeset
   258
                               Toplevel.print o (Toplevel.theory_to_proof
c05f72cff368 tuned IsarThy.theorem_i;
wenzelm
parents: 17057
diff changeset
   259
                                                     (process_spec (SOME axname) cos alt_props))))
14222
1e61f23fd359 Added axiomatic specifications (ax_specification).
skalberg
parents: 14167
diff changeset
   260
14115
65ec3f73d00b Added package for definition by specification.
skalberg
parents:
diff changeset
   261
end
65ec3f73d00b Added package for definition by specification.
skalberg
parents:
diff changeset
   262
65ec3f73d00b Added package for definition by specification.
skalberg
parents:
diff changeset
   263
65ec3f73d00b Added package for definition by specification.
skalberg
parents:
diff changeset
   264
end