author | wenzelm |
Wed, 27 Apr 2011 17:58:45 +0200 | |
changeset 42488 | 4638622bcaa1 |
parent 42381 | 309ec68442c6 |
child 43795 | ca5896a836ba |
permissions | -rw-r--r-- |
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(* Title: Pure/Isar/generic_target.ML |
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Author: Makarius |
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Author: Florian Haftmann, TU Muenchen |
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Common target infrastructure. |
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*) |
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signature GENERIC_TARGET = |
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sig |
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val define: (((binding * typ) * mixfix) * (binding * term) -> |
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term list * term list -> local_theory -> (term * thm) * local_theory) -> |
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(binding * mixfix) * (Attrib.binding * term) -> local_theory -> |
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(term * (string * thm)) * local_theory |
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val notes: (string -> (Attrib.binding * (thm list * Args.src list) list) list -> |
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(Attrib.binding * (thm list * Args.src list) list) list -> local_theory -> local_theory) -> |
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string -> (Attrib.binding * (thm list * Args.src list) list) list -> local_theory -> |
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(string * thm list) list * local_theory |
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val abbrev: (string * bool -> binding * mixfix -> term * term -> |
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term list -> local_theory -> local_theory) -> |
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string * bool -> (binding * mixfix) * term -> local_theory -> |
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(term * term) * local_theory |
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val theory_declaration: declaration -> local_theory -> local_theory |
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val theory_foundation: ((binding * typ) * mixfix) * (binding * term) -> |
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term list * term list -> local_theory -> (term * thm) * local_theory |
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val theory_notes: string -> (Attrib.binding * (thm list * Args.src list) list) list -> |
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local_theory -> local_theory |
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val theory_abbrev: Syntax.mode -> (binding * mixfix) * term -> local_theory -> local_theory |
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end; |
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structure Generic_Target: GENERIC_TARGET = |
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struct |
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(** lifting primitive to target operations **) |
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(* mixfix syntax *) |
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fun check_mixfix ctxt (b, extra_tfrees) mx = |
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if null extra_tfrees then mx |
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else |
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(Context_Position.if_visible ctxt warning |
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("Additional type variable(s) in specification of " ^ Binding.print b ^ ": " ^ |
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commas (map (Syntax.string_of_typ ctxt o TFree) (sort_wrt #1 extra_tfrees)) ^ |
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(if mx = NoSyn then "" |
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else "\nDropping mixfix syntax " ^ Pretty.string_of (Mixfix.pretty_mixfix mx))); |
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NoSyn); |
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(* define *) |
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fun define foundation ((b, mx), ((proto_b_def, atts), rhs)) lthy = |
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let |
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val thy = Proof_Context.theory_of lthy; |
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val thy_ctxt = Proof_Context.init_global thy; |
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val b_def = Thm.def_binding_optional b proto_b_def; |
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(*term and type parameters*) |
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val crhs = Thm.cterm_of thy rhs; |
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val (defs, rhs') = Local_Defs.export_cterm lthy thy_ctxt crhs ||> Thm.term_of; |
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val rhs_conv = Raw_Simplifier.rewrite true defs crhs; |
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val xs = Variable.add_fixed (Local_Theory.target_of lthy) rhs' []; |
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val T = Term.fastype_of rhs; |
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val tfreesT = Term.add_tfreesT T (fold (Term.add_tfreesT o #2) xs []); |
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val extra_tfrees = rev (subtract (op =) tfreesT (Term.add_tfrees rhs [])); |
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val mx' = check_mixfix lthy (b, extra_tfrees) mx; |
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val type_params = map (Logic.mk_type o TFree) extra_tfrees; |
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val target_ctxt = Local_Theory.target_of lthy; |
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val term_params = |
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filter (Variable.is_fixed target_ctxt o #1) xs |
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|> sort (Variable.fixed_ord target_ctxt o pairself #1) |
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|> map Free; |
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val params = type_params @ term_params; |
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val U = map Term.fastype_of params ---> T; |
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(*foundation*) |
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val ((lhs', global_def), lthy2) = foundation |
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(((b, U), mx'), (b_def, rhs')) (type_params, term_params) lthy; |
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(*local definition*) |
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val ((lhs, local_def), lthy3) = lthy2 |
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|> Local_Defs.add_def ((b, NoSyn), lhs'); |
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val def = Local_Defs.trans_terms lthy3 |
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[(*c == global.c xs*) local_def, |
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(*global.c xs == rhs'*) global_def, |
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(*rhs' == rhs*) Thm.symmetric rhs_conv]; |
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(*note*) |
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val ([(res_name, [res])], lthy4) = lthy3 |
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|> Local_Theory.notes_kind "" [((b_def, atts), [([def], [])])]; |
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in ((lhs, (res_name, res)), lthy4) end; |
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(* notes *) |
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fun import_export_proof ctxt (name, raw_th) = |
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let |
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val thy = Proof_Context.theory_of ctxt; |
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val thy_ctxt = Proof_Context.init_global thy; |
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val certT = Thm.ctyp_of thy; |
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val cert = Thm.cterm_of thy; |
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(*export assumes/defines*) |
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val th = Goal.norm_result raw_th; |
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val (defs, th') = Local_Defs.export ctxt thy_ctxt th; |
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val assms = map (Raw_Simplifier.rewrite_rule defs o Thm.assume) |
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(Assumption.all_assms_of ctxt); |
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val nprems = Thm.nprems_of th' - Thm.nprems_of th; |
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(*export fixes*) |
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val tfrees = map TFree (Thm.fold_terms Term.add_tfrees th' []); |
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val frees = map Free (Thm.fold_terms Term.add_frees th' []); |
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val (th'' :: vs) = (th' :: map (Drule.mk_term o cert) (map Logic.mk_type tfrees @ frees)) |
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|> Variable.export ctxt thy_ctxt |
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|> Drule.zero_var_indexes_list; |
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(*thm definition*) |
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val result = Global_Theory.name_thm true true name th''; |
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(*import fixes*) |
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val (tvars, vars) = |
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chop (length tfrees) (map (Thm.term_of o Drule.dest_term) vs) |
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|>> map Logic.dest_type; |
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val instT = map_filter (fn (TVar v, T) => SOME (v, T) | _ => NONE) (tvars ~~ tfrees); |
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val inst = filter (is_Var o fst) (vars ~~ frees); |
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val cinstT = map (pairself certT o apfst TVar) instT; |
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val cinst = map (pairself (cert o Term.map_types (Term_Subst.instantiateT instT))) inst; |
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val result' = Thm.instantiate (cinstT, cinst) result; |
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(*import assumes/defines*) |
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val assm_tac = FIRST' (map (fn assm => Tactic.compose_tac (false, assm, 0)) assms); |
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val result'' = |
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(case SINGLE (Seq.INTERVAL assm_tac 1 nprems) result' of |
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NONE => raise THM ("Failed to re-import result", 0, [result']) |
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| SOME res => Local_Defs.contract ctxt defs (Thm.cprop_of th) res) |
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|> Goal.norm_result |
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|> Global_Theory.name_thm false false name; |
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in (result'', result) end; |
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fun notes target_notes kind facts lthy = |
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let |
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val thy = Proof_Context.theory_of lthy; |
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val facts' = facts |
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|> map (fn (a, bs) => (a, Global_Theory.burrow_fact (Global_Theory.name_multi |
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(Local_Theory.full_name lthy (fst a))) bs)) |
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|> Global_Theory.map_facts (import_export_proof lthy); |
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val local_facts = Global_Theory.map_facts #1 facts'; |
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val global_facts = Global_Theory.map_facts #2 facts'; |
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in |
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lthy |
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|> target_notes kind global_facts local_facts |
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|> Proof_Context.note_thmss kind (Attrib.map_facts (Attrib.attribute_i thy) local_facts) |
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end; |
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(* abbrev *) |
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fun abbrev target_abbrev prmode ((b, mx), t) lthy = |
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let |
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val thy_ctxt = Proof_Context.init_global (Proof_Context.theory_of lthy); |
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val target_ctxt = Local_Theory.target_of lthy; |
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val t' = Assumption.export_term lthy target_ctxt t; |
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val xs = map Free (rev (Variable.add_fixed target_ctxt t' [])); |
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val u = fold_rev lambda xs t'; |
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val extra_tfrees = |
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subtract (op =) (Term.add_tfreesT (Term.fastype_of u) []) (Term.add_tfrees u []); |
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val mx' = check_mixfix lthy (b, extra_tfrees) mx; |
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val global_rhs = |
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singleton (Variable.export_terms (Variable.declare_term u target_ctxt) thy_ctxt) u; |
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in |
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lthy |
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|> target_abbrev prmode (b, mx') (global_rhs, t') xs |
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|> Proof_Context.add_abbrev Print_Mode.internal (b, t) |> snd |
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|> Local_Defs.fixed_abbrev ((b, NoSyn), t) |
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end; |
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(** primitive theory operations **) |
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fun theory_declaration decl lthy = |
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let |
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val global_decl = Morphism.form |
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(Morphism.transform (Local_Theory.global_morphism lthy) decl); |
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in |
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lthy |
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|> Local_Theory.background_theory (Context.theory_map global_decl) |
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|> Local_Theory.target (Context.proof_map global_decl) |
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end; |
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fun theory_foundation (((b, U), mx), (b_def, rhs)) (type_params, term_params) lthy = |
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let |
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val (const, lthy2) = lthy |
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|> Local_Theory.background_theory_result (Sign.declare_const lthy ((b, U), mx)); |
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val lhs = list_comb (const, type_params @ term_params); |
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val ((_, def), lthy3) = lthy2 |
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|> Local_Theory.background_theory_result |
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(Thm.add_def lthy2 false false (b_def, Logic.mk_equals (lhs, rhs))); |
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in ((lhs, def), lthy3) end; |
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fun theory_notes kind global_facts lthy = |
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let |
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val thy = Proof_Context.theory_of lthy; |
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val global_facts' = Attrib.map_facts (Attrib.attribute_i thy) global_facts; |
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in |
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lthy |
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|> Local_Theory.background_theory (Global_Theory.note_thmss kind global_facts' #> snd) |
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|> Local_Theory.target (Proof_Context.note_thmss kind global_facts' #> snd) |
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end; |
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fun theory_abbrev prmode ((b, mx), t) = |
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Local_Theory.background_theory |
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parents:
38341
diff
changeset
|
220 |
(Sign.add_abbrev (#1 prmode) (b, t) #-> |
2b3e054ae6fc
renamed Local_Theory.theory(_result) to Local_Theory.background_theory(_result) to emphasize that this belongs to the infrastructure and is rarely appropriate in user-space tools;
wenzelm
parents:
38341
diff
changeset
|
221 |
(fn (lhs, _) => Sign.notation true prmode [(lhs, mx)])); |
38341
72dba5bd5f63
moved theory-level target operation fragements to Generic_Target; adjusted bootstrap order
haftmann
parents:
38315
diff
changeset
|
222 |
|
38309 | 223 |
end; |