author | wenzelm |
Sat, 04 Apr 1998 12:26:47 +0200 | |
changeset 4792 | 8e3c2dddb9c8 |
parent 4788 | b54c337f2c7f |
child 4853 | 67bcbb03c235 |
permissions | -rw-r--r-- |
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(* Title: Pure/pure_thy.ML |
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ID: $Id$ |
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Author: Markus Wenzel, TU Muenchen |
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The Pure theories. |
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TODO: |
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- tagged axioms / defs; |
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*) |
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signature BASIC_PURE_THY = |
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sig |
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val get_thm: theory -> xstring -> thm |
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val get_thms: theory -> xstring -> thm list |
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val thms_of: theory -> (string * thm) list |
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end |
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signature PURE_THY = |
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sig |
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include BASIC_PURE_THY |
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val get_tthm: theory -> xstring -> tthm |
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val get_tthms: theory -> xstring -> tthm list |
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val thms_containing: theory -> string list -> (string * thm) list |
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val store_thms: (bstring * thm) list -> theory -> theory |
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val store_thmss: (bstring * thm list) list -> theory -> theory |
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val store_tthms: (bstring * tthm) list -> theory -> theory |
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val store_tthmss: (bstring * tthm list) list -> theory -> theory |
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val smart_store_thm: (bstring * thm) -> thm |
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val add_store_axioms: (bstring * string) list -> theory -> theory |
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val add_store_axioms_i: (bstring * term) list -> theory -> theory |
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val add_store_defs: (bstring * string) list -> theory -> theory |
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val add_store_defs_i: (bstring * term) list -> theory -> theory |
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val proto_pure: theory |
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val pure: theory |
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val cpure: theory |
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end; |
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structure PureThy: PURE_THY = |
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struct |
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(*** init theorems data ***) |
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(** data kind 'theorems' **) |
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val theoremsK = "Pure/theorems"; |
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exception Theorems of |
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{space: NameSpace.T, |
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thms_tab: tthm list Symtab.table, |
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const_idx: int * (int * tthm) list Symtab.table} ref; |
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(* methods *) |
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local |
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fun mk_empty _ = |
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Theorems (ref {space = NameSpace.empty, |
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thms_tab = Symtab.empty, const_idx = (0, Symtab.empty)}); |
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fun print sg (Theorems (ref {space, thms_tab, const_idx = _})) = |
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let |
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val prt_thm = Attribute.pretty_tthm o apfst (Thm.transfer_sg sg); |
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fun prt_thms (name, [th]) = |
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Pretty.block [Pretty.str (name ^ ":"), Pretty.brk 1, prt_thm th] |
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| prt_thms (name, ths) = Pretty.big_list (name ^ ":") (map prt_thm ths); |
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fun extrn name = |
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if ! long_names then name else NameSpace.extern space name; |
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val thmss = sort_wrt fst (map (apfst extrn) (Symtab.dest thms_tab)); |
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in |
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Pretty.writeln (Display.pretty_name_space ("theorem name space", space)); |
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Pretty.writeln (Pretty.big_list "theorems:" (map prt_thms thmss)) |
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end; |
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in |
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val theorems_setup = Theory.init_data [(theoremsK, (mk_empty (), mk_empty, mk_empty, print))]; |
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end; |
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(* get data record *) |
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fun get_theorems_sg sg = |
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(case Sign.get_data sg theoremsK of |
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Theorems r => r |
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| _ => type_error theoremsK); |
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val get_theorems = get_theorems_sg o Theory.sign_of; |
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(** retrieve theorems **) |
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fun local_thms thy name = |
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let |
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val ref {space, thms_tab, ...} = get_theorems thy; |
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val full_name = NameSpace.intern space name; |
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in Symtab.lookup (thms_tab, full_name) end; |
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fun all_local_thms [] _ = None |
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| all_local_thms (thy :: thys) name = |
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(case local_thms thy name of |
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None => all_local_thms thys name |
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| some => some); |
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(* get_thms etc. *) |
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fun get_tthms thy name = |
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(case all_local_thms (thy :: Theory.ancestors_of thy) name of |
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None => raise THEORY ("Unknown theorem(s) " ^ quote name, [thy]) |
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| Some thms => thms); |
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fun get_tthm thy name = |
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(case get_tthms thy name of |
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[thm] => thm |
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| _ => raise THEORY ("Single theorem expected " ^ quote name, [thy])); |
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fun get_thms thy = map Attribute.thm_of o get_tthms thy; |
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fun get_thm thy = Attribute.thm_of o get_tthm thy; |
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(* thms_of *) |
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fun attach_name (thm, _) = (Thm.name_of_thm thm, thm); |
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fun thms_of thy = |
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let val ref {thms_tab, ...} = get_theorems thy in |
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map attach_name (flat (map snd (Symtab.dest thms_tab))) |
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end; |
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(** theorems indexed by constants **) |
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(* make index *) |
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val ignore = ["Trueprop", "all", "==>", "=="]; |
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fun add_const_idx ((next, table), tthm as (thm, _)) = |
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let |
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val {hyps, prop, ...} = Thm.rep_thm thm; |
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val consts = |
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foldr add_term_consts (hyps, add_term_consts (prop, [])) \\ ignore; |
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fun add (tab, c) = |
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Symtab.update ((c, (next, tthm) :: Symtab.lookup_multi (tab, c)), tab); |
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in (next + 1, foldl add (table, consts)) end; |
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fun make_const_idx thm_tab = |
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foldl (foldl add_const_idx) ((0, Symtab.empty), map snd (Symtab.dest thm_tab)); |
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(* lookup index *) |
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(*search locally*) |
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fun containing [] thy = thms_of thy |
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| containing consts thy = |
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let |
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fun int ([], _) = [] |
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| int (_, []) = [] |
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| int (xxs as ((x as (i:int, _)) :: xs), yys as ((y as (j, _)) :: ys)) = |
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if i = j then x :: int (xs, ys) |
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else if i > j then int (xs, yys) |
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else int (xxs, ys); |
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fun ints [xs] = xs |
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| ints xss = if exists null xss then [] else foldl int (hd xss, tl xss); |
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val ref {const_idx = (_, ctab), ...} = get_theorems thy; |
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val ithmss = map (fn c => Symtab.lookup_multi (ctab, c)) consts; |
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in |
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map (attach_name o snd) (ints ithmss) |
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end; |
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(*search globally*) |
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fun thms_containing thy consts = |
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flat (map (containing (consts \\ ignore)) (thy :: Theory.ancestors_of thy)); |
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(** store theorems **) (*DESTRUCTIVE*) |
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fun warn_overwrite name = |
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warning ("Replaced old copy of theorems " ^ quote name); |
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fun warn_same name = |
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warning ("Theorem database already contains a copy of " ^ quote name); |
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fun enter_tthms sg single (raw_name, tthms) = |
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let |
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val len = length tthms; |
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val name = Sign.full_name sg raw_name; |
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val names = |
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if single then replicate len name |
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else map (fn i => name ^ "_" ^ string_of_int i) (0 upto (len - 1)); |
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val named_tthms = map2 (fn (x, (th, tg)) => (Thm.name_thm (x, th), tg)) (names, tthms); |
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fun eq_tthm ((th1, _), (th2, _)) = Thm.eq_thm (th1, th2); |
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val r as ref {space, thms_tab, const_idx} = get_theorems_sg sg; |
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val overwrite = |
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(case Symtab.lookup (thms_tab, name) of |
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None => false |
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| Some tthms' => |
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if length tthms' = len andalso forall2 eq_tthm (tthms', named_tthms) then |
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(warn_same name; false) |
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else (warn_overwrite name; true)); |
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213 |
|
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val space' = NameSpace.extend (space, [name]); |
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val thms_tab' = Symtab.update ((name, named_tthms), thms_tab); |
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val const_idx' = |
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if overwrite then make_const_idx thms_tab' |
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else foldl add_const_idx (const_idx, named_tthms); |
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in |
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r := {space = space', thms_tab = thms_tab', const_idx = const_idx'}; |
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named_tthms |
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end; |
223 |
||
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fun do_enter_tthms sg single tthms = (enter_tthms sg single tthms; ()); |
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fun store_tthmss tthmss thy = |
228 |
(seq (do_enter_tthms (Theory.sign_of thy) false) tthmss; thy); |
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|
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fun store_tthms tthms thy = |
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(seq (do_enter_tthms (Theory.sign_of thy) true) (map (apsnd (fn th => [th])) tthms); thy); |
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fun store_thmss thmss = store_tthmss (map (apsnd (map Attribute.tthm_of)) thmss); |
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fun store_thms thms = store_tthms (map (apsnd Attribute.tthm_of) thms); |
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|
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fun smart_store_thm (name, thm) = |
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let val [(thm', _)] = enter_tthms (Thm.sign_of_thm thm) true (name, [Attribute.tthm_of thm]) |
238 |
in thm' end; |
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(* store axioms as theorems *) |
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242 |
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fun add_store add named_axs thy = |
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let |
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val thy' = add named_axs thy; |
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val named_thms = map (fn (name, _) => (name, get_axiom thy' name)) named_axs; |
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in store_thms named_thms thy' end; |
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248 |
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val add_store_axioms = add_store Theory.add_axioms; |
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val add_store_axioms_i = add_store Theory.add_axioms_i; |
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val add_store_defs = add_store Theory.add_defs; |
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val add_store_defs_i = add_store Theory.add_defs_i; |
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253 |
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254 |
|
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|
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(** the Pure theories **) |
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||
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val proto_pure = |
|
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Theory.pre_pure |
|
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|> Theory.setup [Attribute.setup, theorems_setup] |
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|> Theory.add_types |
262 |
(("fun", 2, NoSyn) :: |
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("prop", 0, NoSyn) :: |
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("itself", 1, NoSyn) :: |
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Syntax.pure_types) |
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|> Theory.add_classes_i [(logicC, [])] |
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|> Theory.add_defsort_i logicS |
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|> Theory.add_arities_i |
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[("fun", [logicS, logicS], logicS), |
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("prop", [], logicS), |
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("itself", [logicS], logicS)] |
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|> Theory.add_syntax Syntax.pure_syntax |
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|> Theory.add_modesyntax ("symbols", true) Syntax.pure_sym_syntax |
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|> Theory.add_trfuns Syntax.pure_trfuns |
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|> Theory.add_trfunsT Syntax.pure_trfunsT |
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|> Theory.add_syntax |
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[("==>", "[prop, prop] => prop", Delimfix "op ==>")] |
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|> Theory.add_consts |
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[("==", "['a::{}, 'a] => prop", InfixrName ("==", 2)), |
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("=?=", "['a::{}, 'a] => prop", InfixrName ("=?=", 2)), |
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("==>", "[prop, prop] => prop", Mixfix ("(_/ ==> _)", [2, 1], 1)), |
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("all", "('a => prop) => prop", Binder ("!!", 0, 0)), |
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("Goal", "prop => prop", Mixfix ("GOAL _", [999], 1000)), |
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("TYPE", "'a itself", NoSyn)] |
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|> Theory.add_path "ProtoPure" |
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|> add_store_defs |
287 |
[("flexpair_def", "(t =?= u) == (t == u::'a::{})"), |
|
288 |
("Goal_def", "GOAL (PROP A) == PROP A")] |
|
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|> Theory.add_name "ProtoPure"; |
290 |
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val pure = |
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Theory.prep_ext_merge [proto_pure] |
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|> Theory.add_syntax Syntax.pure_appl_syntax |
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|> Theory.add_path "Pure" |
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|> Theory.add_name "Pure"; |
296 |
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val cpure = |
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Theory.prep_ext_merge [proto_pure] |
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|> Theory.add_syntax Syntax.pure_applC_syntax |
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|> Theory.add_path "CPure" |
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|> Theory.add_name "CPure"; |
302 |
||
303 |
||
304 |
end; |
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305 |
||
306 |
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structure BasicPureThy: BASIC_PURE_THY = PureThy; |
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open BasicPureThy; |
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309 |
|
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310 |
|
3987 | 311 |
|
312 |
(** theory structures **) |
|
313 |
||
314 |
structure ProtoPure = |
|
315 |
struct |
|
316 |
val thy = PureThy.proto_pure; |
|
317 |
val flexpair_def = get_axiom thy "flexpair_def"; |
|
4788 | 318 |
val Goal_def = get_axiom thy "Goal_def"; |
3987 | 319 |
end; |
320 |
||
321 |
structure Pure = struct val thy = PureThy.pure end; |
|
322 |
structure CPure = struct val thy = PureThy.cpure end; |