author | wenzelm |
Thu, 30 Nov 2006 14:17:29 +0100 | |
changeset 21605 | 4e7307e229b3 |
parent 21594 | 2859c94d67d4 |
child 21611 | fc95ff1fe738 |
permissions | -rw-r--r-- |
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(* Title: Pure/Isar/theory_target.ML |
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ID: $Id$ |
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Author: Makarius |
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Common theory/locale targets. |
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*) |
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signature THEORY_TARGET = |
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sig |
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val peek: local_theory -> string option |
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val begin: bstring -> Proof.context -> local_theory |
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val init: xstring option -> theory -> local_theory |
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val init_i: string option -> theory -> local_theory |
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end; |
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structure TheoryTarget: THEORY_TARGET = |
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struct |
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(** locale targets **) |
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(* context data *) |
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structure Data = ProofDataFun |
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( |
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val name = "Isar/theory_target"; |
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type T = string option; |
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fun init _ = NONE; |
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fun print _ _ = (); |
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); |
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val _ = Context.add_setup Data.init; |
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val peek = Data.get; |
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(* pretty *) |
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fun pretty loc ctxt = |
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let |
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val thy = ProofContext.theory_of ctxt; |
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val fixes = map (fn (x, T) => (x, SOME T, NoSyn)) (#1 (ProofContext.inferred_fixes ctxt)); |
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val assumes = map (fn A => (("", []), [(A, [])])) (map Thm.term_of (Assumption.assms_of ctxt)); |
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val elems = |
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(if null fixes then [] else [Element.Fixes fixes]) @ |
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(if null assumes then [] else [Element.Assumes assumes]); |
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in |
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if loc = "" then |
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[Pretty.block |
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[Pretty.str "theory", Pretty.brk 1, Pretty.str (Context.theory_name thy), |
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Pretty.str " =", Pretty.brk 1, ThyInfo.pretty_theory thy]] |
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else if null elems then [Pretty.str ("locale " ^ Locale.extern thy loc)] |
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else |
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[Pretty.big_list ("locale " ^ Locale.extern thy loc ^ " =") |
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(map (Pretty.chunks o Element.pretty_ctxt ctxt) elems)] |
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end; |
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(* consts *) |
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fun consts is_loc depends decls lthy = |
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let |
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val xs = filter depends (#1 (ProofContext.inferred_fixes (LocalTheory.target_of lthy))); |
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fun const ((c, T), mx) thy = |
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let |
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val U = map #2 xs ---> T; |
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val t = Term.list_comb (Const (Sign.full_name thy c, U), map Free xs); |
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val thy' = Sign.add_consts_authentic [(c, U, Syntax.unlocalize_mixfix is_loc mx)] thy; |
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in (((c, mx), t), thy') end; |
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val (abbrs, lthy') = lthy |> LocalTheory.theory_result (fold_map const decls); |
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val defs = abbrs |> map (fn (x, t) => (x, (("", []), t))); |
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in |
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lthy' |
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|> is_loc ? LocalTheory.abbrevs Syntax.default_mode abbrs |
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|> LocalDefs.add_defs defs |
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|>> map (apsnd snd) |
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end; |
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(* axioms *) |
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local |
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fun add_axiom hyps (name, prop) thy = |
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let |
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val name' = if name = "" then "axiom_" ^ serial_string () else name; |
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val prop' = Logic.list_implies (hyps, prop); |
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val thy' = thy |> Theory.add_axioms_i [(name', prop')]; |
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val axm = Drule.unvarify (Thm.get_axiom_i thy' (Sign.full_name thy' name')); |
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val prems = map (Thm.assume o Thm.cterm_of thy') hyps; |
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in (Drule.implies_elim_list axm prems, thy') end; |
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in |
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fun axioms kind specs lthy = |
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let |
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val hyps = map Thm.term_of (Assumption.assms_of lthy); |
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fun axiom ((name, atts), props) thy = thy |
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|> fold_map (add_axiom hyps) (PureThy.name_multi name props) |
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|-> (fn ths => pair ((name, atts), [(ths, [])])); |
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in |
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lthy |
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|> fold (fold Variable.declare_term o snd) specs |
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|> LocalTheory.theory_result (fold_map axiom specs) |
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|-> LocalTheory.notes kind |
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end; |
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end; |
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(* defs *) |
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local |
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infix also; |
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fun eq1 also eq2 = |
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eq2 COMP (eq1 COMP (Drule.incr_indexes2 eq1 eq2 transitive_thm)); |
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fun expand_term ctxt t = |
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let |
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val thy = ProofContext.theory_of ctxt; |
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val thy_ctxt = ProofContext.init thy; |
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val ct = Thm.cterm_of thy t; |
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val (defs, ct') = LocalDefs.export ctxt thy_ctxt (Drule.mk_term ct) ||> Drule.dest_term; |
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in (Thm.term_of ct', Tactic.rewrite true defs ct) end; |
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fun add_def (name, prop) = |
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Theory.add_defs_i false false [(name, prop)] #> |
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(fn thy => (Drule.unvarify (Thm.get_axiom_i thy (Sign.full_name thy name)), thy)); |
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in |
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fun defs kind args lthy0 = |
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let |
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fun def ((c, mx), ((name, atts), rhs)) lthy1 = |
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let |
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val (rhs', rhs_conv) = expand_term lthy0 rhs; |
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val xs = Variable.add_fixed (LocalTheory.target_of lthy0) rhs' []; |
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val ([(lhs, lhs_def)], lthy2) = lthy1 |
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|> LocalTheory.consts (member (op =) xs) [((c, Term.fastype_of rhs), mx)]; |
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val lhs' = #2 (Logic.dest_equals (Thm.prop_of lhs_def)); |
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val name' = Thm.def_name_optional c name; |
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val (def, lthy3) = lthy2 |
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|> LocalTheory.theory_result (add_def (name', Logic.mk_equals (lhs', rhs'))); |
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val eq = |
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(*c == loc.c xs*) lhs_def |
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(*lhs' == rhs'*) also def |
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(*rhs' == rhs*) also Thm.symmetric rhs_conv; |
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in ((lhs, ((name', atts), [([eq], [])])), lthy3) end; |
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val ((lhss, facts), lthy') = lthy0 |> fold_map def args |>> split_list; |
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val (res, lthy'') = lthy' |> LocalTheory.notes kind facts; |
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in (lhss ~~ map (apsnd the_single) res, lthy'') end; |
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end; |
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(* notes *) |
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(* FIXME |
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fun import_export inner outer (name, raw_th) = |
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let |
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val th = norm_hhf_protect raw_th; |
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val (defs, th') = LocalDefs.export inner outer th; |
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val n = Thm.nprems_of th' - Thm.nprems_of th; |
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val result = PureThy.name_thm true (name, th'); (* FIXME proper thm definition!? *) |
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val concl_conv = Tactic.rewrite true defs (Thm.cprop_of th); |
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val assms = map (Tactic.rewrite_rule defs o Thm.assume) (Assumption.assms_of inner); |
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val assm_tac = FIRST' (map (fn assm => Tactic.compose_tac (false, assm, 0)) assms); |
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val reimported_result = |
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(case SINGLE (Seq.INTERVAL assm_tac 1 n) result of |
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NONE => raise THM ("Failed to re-import result", 0, [result]) |
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| SOME res => res) COMP (concl_conv COMP_INCR Drule.equal_elim_rule2); |
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val _ = reimported_result COMP (th COMP_INCR Drule.remdups_rl) handle THM _ => |
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(warning "FIXME"; asm_rl); |
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in (reimported_result, result) end; |
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*) |
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fun import_export inner outer (_, th) = |
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(singleton (ProofContext.standard inner) th, Assumption.export false inner outer th); |
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fun notes loc kind facts lthy = |
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let |
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val is_loc = loc <> ""; |
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val thy = ProofContext.theory_of lthy; |
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val thy_ctxt = ProofContext.init thy; |
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val facts' = facts |
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|> map (fn (a, bs) => (a, PureThy.burrow_fact (PureThy.name_multi (fst a)) bs)) |
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|> PureThy.map_facts (import_export lthy thy_ctxt); |
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val local_facts = facts' |
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|> PureThy.map_facts #1 |
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|> Element.facts_map (Element.morph_ctxt (Morphism.thm_morphism Drule.local_standard)); |
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val global_facts = facts' |
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|> PureThy.map_facts #2 |
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|> Element.generalize_facts lthy thy_ctxt |
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|> PureThy.map_facts Drule.local_standard |
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|> Attrib.map_facts (if is_loc then K I else Attrib.attribute_i thy); |
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in |
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lthy |> LocalTheory.theory (fn thy => thy |
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|> Sign.qualified_names |
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|> PureThy.note_thmss_i kind global_facts |> #2 |
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|> Sign.restore_naming thy) |
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|> is_loc ? (fn lthy' => lthy' |> LocalTheory.target |
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(Locale.add_thmss loc kind |
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(Element.facts_map (Element.morph_ctxt (LocalTheory.target_morphism lthy')) local_facts))) |
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|> ProofContext.set_stmt true |
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|> ProofContext.qualified_names |
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|> ProofContext.note_thmss_i kind (Attrib.map_facts (Attrib.attribute_i thy) local_facts) |
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||> ProofContext.restore_naming lthy |
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||> ProofContext.restore_stmt lthy |
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end; |
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(* target declarations *) |
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fun decl _ "" f = |
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LocalTheory.theory (Context.theory_map (f Morphism.identity)) #> |
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LocalTheory.target (Context.proof_map (f Morphism.identity)) |
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| decl add loc f = |
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LocalTheory.target (add loc (Context.proof_map o f)); |
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val type_syntax = decl Locale.add_type_syntax; |
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val term_syntax = decl Locale.add_term_syntax; |
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val declaration = decl Locale.add_declaration; |
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fun target_morphism loc lthy = |
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ProofContext.export_morphism lthy (LocalTheory.target_of lthy) $> |
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Morphism.thm_morphism Drule.local_standard; |
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237 |
|
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fun target_name "" lthy = Sign.full_name (ProofContext.theory_of lthy) |
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| target_name _ lthy = ProofContext.full_name (LocalTheory.target_of lthy); |
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240 |
|
20894 | 241 |
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(* init and exit *) |
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243 |
||
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fun begin loc = |
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Data.put (if loc = "" then NONE else SOME loc) #> |
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LocalTheory.init (NameSpace.base loc) |
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{pretty = pretty loc, |
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consts = consts (loc <> ""), |
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axioms = axioms, |
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defs = defs, |
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notes = notes loc, |
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type_syntax = type_syntax loc, |
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term_syntax = term_syntax loc, |
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declaration = declaration loc, |
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target_morphism = target_morphism loc, |
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target_name = target_name loc, |
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reinit = fn _ => begin loc o (if loc = "" then ProofContext.init else Locale.init loc), |
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exit = LocalTheory.target_of}; |
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fun init_i NONE thy = begin "" (ProofContext.init thy) |
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| init_i (SOME loc) thy = begin loc (Locale.init loc thy); |
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fun init (SOME "-") thy = init_i NONE thy |
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| init loc thy = init_i (Option.map (Locale.intern thy) loc) thy; |
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|
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end; |