author | wenzelm |
Fri, 03 Jul 2015 14:32:55 +0200 | |
changeset 60638 | 16d80e5ef2dc |
parent 60315 | c08adefc98ea |
child 60642 | 48dd1cefb4ae |
permissions | -rw-r--r-- |
250 | 1 |
(* Title: Pure/thm.ML |
2 |
Author: Lawrence C Paulson, Cambridge University Computer Laboratory |
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Author: Makarius |
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Pure: MAJOR CHANGE. Moved ML types ctyp and cterm and their associated
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accomodate identification of type Sign.sg and theory;
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The very core of Isabelle's Meta Logic: certified types and terms, |
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derivations, theorems, inference rules (including lifting and |
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type thm: fully internal derivation, no longer exported;
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resolution), oracles. |
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*) |
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||
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signature BASIC_THM = |
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sig |
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type ctyp |
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type cterm |
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14 |
exception CTERM of string * cterm list |
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15 |
type thm |
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type conv = cterm -> thm |
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17 |
exception THM of string * int * thm list |
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18 |
end; |
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||
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signature THM = |
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sig |
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include BASIC_THM |
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(*certified types*) |
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val theory_of_ctyp: ctyp -> theory |
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val typ_of: ctyp -> typ |
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Thm.cterm_of and Thm.ctyp_of operate on local context;
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val global_ctyp_of: theory -> typ -> ctyp |
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Thm.cterm_of and Thm.ctyp_of operate on local context;
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val ctyp_of: Proof.context -> typ -> ctyp |
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val dest_ctyp: ctyp -> ctyp list |
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(*certified terms*) |
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val theory_of_cterm: cterm -> theory |
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val term_of: cterm -> term |
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val typ_of_cterm: cterm -> typ |
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val ctyp_of_cterm: cterm -> ctyp |
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val maxidx_of_cterm: cterm -> int |
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val global_cterm_of: theory -> term -> cterm |
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Thm.cterm_of and Thm.ctyp_of operate on local context;
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val cterm_of: Proof.context -> term -> cterm |
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val transfer_cterm: theory -> cterm -> cterm |
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val renamed_term: term -> cterm -> cterm |
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val dest_comb: cterm -> cterm * cterm |
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val dest_fun: cterm -> cterm |
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val dest_arg: cterm -> cterm |
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val dest_fun2: cterm -> cterm |
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val dest_arg1: cterm -> cterm |
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val dest_abs: string option -> cterm -> cterm * cterm |
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val apply: cterm -> cterm -> cterm |
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val lambda_name: string * cterm -> cterm -> cterm |
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val lambda: cterm -> cterm -> cterm |
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val adjust_maxidx_cterm: int -> cterm -> cterm |
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val incr_indexes_cterm: int -> cterm -> cterm |
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val match: cterm * cterm -> (ctyp * ctyp) list * (cterm * cterm) list |
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val first_order_match: cterm * cterm -> (ctyp * ctyp) list * (cterm * cterm) list |
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(*theorems*) |
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val rep_thm: thm -> |
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{thy: theory, |
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tags: Properties.T, |
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maxidx: int, |
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shyps: sort Ord_List.T, |
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hyps: term Ord_List.T, |
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tpairs: (term * term) list, |
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prop: term} |
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val crep_thm: thm -> |
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{thy: theory, |
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tags: Properties.T, |
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maxidx: int, |
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shyps: sort Ord_List.T, |
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hyps: cterm Ord_List.T, |
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tpairs: (cterm * cterm) list, |
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prop: cterm} |
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val fold_terms: (term -> 'a -> 'a) -> thm -> 'a -> 'a |
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val terms_of_tpairs: (term * term) list -> term list |
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val full_prop_of: thm -> term |
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val theory_of_thm: thm -> theory |
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val theory_name_of_thm: thm -> string |
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val maxidx_of: thm -> int |
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val maxidx_thm: thm -> int -> int |
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val hyps_of: thm -> term list |
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val prop_of: thm -> term |
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val tpairs_of: thm -> (term * term) list |
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val concl_of: thm -> term |
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val prems_of: thm -> term list |
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val nprems_of: thm -> int |
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val no_prems: thm -> bool |
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val major_prem_of: thm -> term |
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val cprop_of: thm -> cterm |
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val cprem_of: thm -> int -> cterm |
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val transfer: theory -> thm -> thm |
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val renamed_prop: term -> thm -> thm |
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val weaken: cterm -> thm -> thm |
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val weaken_sorts: sort list -> cterm -> cterm |
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val extra_shyps: thm -> sort list |
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reverted to join_bodies/join_proofs based on fold_body_thms to regain performance (escpecially of HOL-Proofs) -- see also aa9c1e9ef2ce and 4e2abb045eac;
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val proof_bodies_of: thm list -> proof_body list |
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val proof_body_of: thm -> proof_body |
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val proof_of: thm -> proof |
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val join_proofs: thm list -> unit |
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theorem status about oracles/futures is no longer printed by default;
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val peek_status: thm -> {oracle: bool, unfinished: bool, failed: bool} |
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val future: thm future -> cterm -> thm |
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renamed Thm.get_name -> Thm.derivation_name and Thm.put_name -> Thm.name_derivation, to emphasize the true nature of these operations;
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val derivation_name: thm -> string |
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renamed Thm.get_name -> Thm.derivation_name and Thm.put_name -> Thm.name_derivation, to emphasize the true nature of these operations;
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val name_derivation: string -> thm -> thm |
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val axiom: theory -> string -> thm |
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val axioms_of: theory -> (string * thm) list |
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val get_tags: thm -> Properties.T |
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val map_tags: (Properties.T -> Properties.T) -> thm -> thm |
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Added function norm_proof for normalizing the proof term
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val norm_proof: thm -> thm |
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val adjust_maxidx_thm: int -> thm -> thm |
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(*inference rules*) |
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val assume: cterm -> thm |
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val implies_intr: cterm -> thm -> thm |
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val implies_elim: thm -> thm -> thm |
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val forall_intr: cterm -> thm -> thm |
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val forall_elim: cterm -> thm -> thm |
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val reflexive: cterm -> thm |
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val symmetric: thm -> thm |
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val transitive: thm -> thm -> thm |
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val beta_conversion: bool -> conv |
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val eta_conversion: conv |
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val eta_long_conversion: conv |
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val abstract_rule: string -> cterm -> thm -> thm |
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val combination: thm -> thm -> thm |
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val equal_intr: thm -> thm -> thm |
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val equal_elim: thm -> thm -> thm |
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val flexflex_rule: Proof.context option -> thm -> thm Seq.seq |
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val generalize: string list * string list -> int -> thm -> thm |
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val instantiate: (ctyp * ctyp) list * (cterm * cterm) list -> thm -> thm |
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val instantiate_cterm: (ctyp * ctyp) list * (cterm * cterm) list -> cterm -> cterm |
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val trivial: cterm -> thm |
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val of_class: ctyp * class -> thm |
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minor tuning of Thm.strip_shyps -- no longer pervasive;
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val strip_shyps: thm -> thm |
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val unconstrainT: thm -> thm |
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val varifyT_global': (string * sort) list -> thm -> ((string * sort) * indexname) list * thm |
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val varifyT_global: thm -> thm |
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renamed Thm.freezeT to Thm.legacy_freezeT -- it is based on Type.legacy_freeze;
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val legacy_freezeT: thm -> thm |
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val dest_state: thm * int -> (term * term) list * term list * term * term |
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val lift_rule: cterm -> thm -> thm |
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val incr_indexes: int -> thm -> thm |
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val assumption: Proof.context option -> int -> thm -> thm Seq.seq |
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val eq_assumption: int -> thm -> thm |
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val rotate_rule: int -> int -> thm -> thm |
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val permute_prems: int -> int -> thm -> thm |
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val bicompose: Proof.context option -> {flatten: bool, match: bool, incremented: bool} -> |
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bool * thm * int -> int -> thm -> thm Seq.seq |
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val biresolution: Proof.context option -> bool -> (bool * thm) list -> int -> thm -> thm Seq.seq |
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(*oracles*) |
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val extern_oracles: bool -> Proof.context -> (Markup.T * xstring) list |
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Thm.add_oracle interface: replaced old bstring by binding;
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val add_oracle: binding * ('a -> cterm) -> theory -> (string * ('a -> thm)) * theory |
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end; |
146 |
||
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structure Thm: THM = |
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struct |
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new datatype theory, supports 'draft theories' and incremental extension:
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(*** Certified terms and types ***) |
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|
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(** certified types **) |
153 |
||
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abstype ctyp = Ctyp of {thy: theory, T: typ, maxidx: int, sorts: sort Ord_List.T} |
32590
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replaced opaque signature matching by plain old abstype (again, cf. ac4498f95d1c) -- this recovers pretty printing in SML/NJ and Poly/ML 5.3;
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with |
250 | 156 |
|
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fun theory_of_ctyp (Ctyp {thy, ...}) = thy; |
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fun typ_of (Ctyp {T, ...}) = T; |
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fun global_ctyp_of thy raw_T = |
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let |
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val T = Sign.certify_typ thy raw_T; |
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val maxidx = Term.maxidx_of_typ T; |
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val sorts = Sorts.insert_typ T []; |
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in Ctyp {thy = thy, T = T, maxidx = maxidx, sorts = sorts} end; |
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val ctyp_of = global_ctyp_of o Proof_Context.theory_of; |
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168 |
|
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fun dest_ctyp (Ctyp {thy, T = Type (_, Ts), maxidx, sorts}) = |
170 |
map (fn T => Ctyp {thy = thy, T = T, maxidx = maxidx, sorts = sorts}) Ts |
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| dest_ctyp cT = raise TYPE ("dest_ctyp", [typ_of cT], []); |
15087 | 172 |
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|
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Pure: MAJOR CHANGE. Moved ML types ctyp and cterm and their associated
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174 |
|
250 | 175 |
(** certified terms **) |
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(*certified terms with checked typ, maxidx, and sorts*) |
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abstype cterm = Cterm of {thy: theory, t: term, T: typ, maxidx: int, sorts: sort Ord_List.T} |
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95f4f08f950f
replaced opaque signature matching by plain old abstype (again, cf. ac4498f95d1c) -- this recovers pretty printing in SML/NJ and Poly/ML 5.3;
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179 |
with |
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180 |
|
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exception CTERM of string * cterm list; |
16679 | 182 |
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52788 | 183 |
fun theory_of_cterm (Cterm {thy, ...}) = thy; |
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fun term_of (Cterm {t, ...}) = t; |
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|
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fun typ_of_cterm (Cterm {T, ...}) = T; |
187 |
||
188 |
fun ctyp_of_cterm (Cterm {thy, T, maxidx, sorts, ...}) = |
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Ctyp {thy = thy, T = T, maxidx = maxidx, sorts = sorts}; |
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fun maxidx_of_cterm (Cterm {maxidx, ...}) = maxidx; |
192 |
||
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Thm.cterm_of and Thm.ctyp_of operate on local context;
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fun global_cterm_of thy tm = |
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let |
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val (t, T, maxidx) = Sign.certify_term thy tm; |
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val sorts = Sorts.insert_term t []; |
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in Cterm {thy = thy, t = t, T = T, maxidx = maxidx, sorts = sorts} end; |
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diff
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|
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Thm.cterm_of and Thm.ctyp_of operate on local context;
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val cterm_of = global_cterm_of o Proof_Context.theory_of; |
291934bac95e
Thm.cterm_of and Thm.ctyp_of operate on local context;
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200 |
|
60315 | 201 |
fun merge_thys0 (Cterm {thy = thy1, ...}) (Cterm {thy = thy2, ...}) = |
202 |
Theory.merge (thy1, thy2); |
|
203 |
||
204 |
fun transfer_cterm thy' ct = |
|
205 |
let |
|
206 |
val Cterm {thy, t, T, maxidx, sorts} = ct; |
|
207 |
val _ = |
|
208 |
Theory.subthy (thy, thy') orelse |
|
209 |
raise CTERM ("transfer_cterm: not a super theory", [ct]); |
|
210 |
in |
|
211 |
if Theory.eq_thy (thy, thy') then ct |
|
212 |
else Cterm {thy = thy', t = t, T = T, maxidx = maxidx, sorts = sorts} |
|
213 |
end; |
|
214 |
||
59969
bcccad156236
explicitly checked alpha conversion -- actual renaming happens outside kernel;
wenzelm
parents:
59917
diff
changeset
|
215 |
fun renamed_term t' (Cterm {thy, t, T, maxidx, sorts}) = |
bcccad156236
explicitly checked alpha conversion -- actual renaming happens outside kernel;
wenzelm
parents:
59917
diff
changeset
|
216 |
if t aconv t' then Cterm {thy = thy, t = t', T = T, maxidx = maxidx, sorts = sorts} |
bcccad156236
explicitly checked alpha conversion -- actual renaming happens outside kernel;
wenzelm
parents:
59917
diff
changeset
|
217 |
else raise TERM ("renamed_term: terms disagree", [t, t']); |
bcccad156236
explicitly checked alpha conversion -- actual renaming happens outside kernel;
wenzelm
parents:
59917
diff
changeset
|
218 |
|
20580
6fb75df09253
added dest_arg, i.e. a tuned version of #2 o dest_comb;
wenzelm
parents:
20548
diff
changeset
|
219 |
|
22909 | 220 |
(* destructors *) |
221 |
||
52788 | 222 |
fun dest_comb (Cterm {t = c $ a, T, thy, maxidx, sorts}) = |
22909 | 223 |
let val A = Term.argument_type_of c 0 in |
52788 | 224 |
(Cterm {t = c, T = A --> T, thy = thy, maxidx = maxidx, sorts = sorts}, |
225 |
Cterm {t = a, T = A, thy = thy, maxidx = maxidx, sorts = sorts}) |
|
1493
e936723cb94d
added dest_comb, dest_abs and mk_prop for manipulating cterms
clasohm
parents:
1460
diff
changeset
|
226 |
end |
22584 | 227 |
| dest_comb ct = raise CTERM ("dest_comb", [ct]); |
1493
e936723cb94d
added dest_comb, dest_abs and mk_prop for manipulating cterms
clasohm
parents:
1460
diff
changeset
|
228 |
|
52788 | 229 |
fun dest_fun (Cterm {t = c $ _, T, thy, maxidx, sorts}) = |
22909 | 230 |
let val A = Term.argument_type_of c 0 |
52788 | 231 |
in Cterm {t = c, T = A --> T, thy = thy, maxidx = maxidx, sorts = sorts} end |
22909 | 232 |
| dest_fun ct = raise CTERM ("dest_fun", [ct]); |
233 |
||
52788 | 234 |
fun dest_arg (Cterm {t = c $ a, T = _, thy, maxidx, sorts}) = |
22909 | 235 |
let val A = Term.argument_type_of c 0 |
52788 | 236 |
in Cterm {t = a, T = A, thy = thy, maxidx = maxidx, sorts = sorts} end |
22584 | 237 |
| dest_arg ct = raise CTERM ("dest_arg", [ct]); |
20580
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added dest_arg, i.e. a tuned version of #2 o dest_comb;
wenzelm
parents:
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diff
changeset
|
238 |
|
22909 | 239 |
|
52788 | 240 |
fun dest_fun2 (Cterm {t = c $ _ $ _, T, thy, maxidx, sorts}) = |
22909 | 241 |
let |
242 |
val A = Term.argument_type_of c 0; |
|
243 |
val B = Term.argument_type_of c 1; |
|
52788 | 244 |
in Cterm {t = c, T = A --> B --> T, thy = thy, maxidx = maxidx, sorts = sorts} end |
22909 | 245 |
| dest_fun2 ct = raise CTERM ("dest_fun2", [ct]); |
246 |
||
52788 | 247 |
fun dest_arg1 (Cterm {t = c $ a $ _, T = _, thy, maxidx, sorts}) = |
22909 | 248 |
let val A = Term.argument_type_of c 0 |
52788 | 249 |
in Cterm {t = a, T = A, thy = thy, maxidx = maxidx, sorts = sorts} end |
22909 | 250 |
| dest_arg1 ct = raise CTERM ("dest_arg1", [ct]); |
20673 | 251 |
|
52788 | 252 |
fun dest_abs a (Cterm {t = Abs (x, T, t), T = Type ("fun", [_, U]), thy, maxidx, sorts}) = |
18944 | 253 |
let val (y', t') = Term.dest_abs (the_default x a, T, t) in |
52788 | 254 |
(Cterm {t = Free (y', T), T = T, thy = thy, maxidx = maxidx, sorts = sorts}, |
255 |
Cterm {t = t', T = U, thy = thy, maxidx = maxidx, sorts = sorts}) |
|
1493
e936723cb94d
added dest_comb, dest_abs and mk_prop for manipulating cterms
clasohm
parents:
1460
diff
changeset
|
256 |
end |
22584 | 257 |
| dest_abs _ ct = raise CTERM ("dest_abs", [ct]); |
1493
e936723cb94d
added dest_comb, dest_abs and mk_prop for manipulating cterms
clasohm
parents:
1460
diff
changeset
|
258 |
|
22909 | 259 |
|
260 |
(* constructors *) |
|
261 |
||
46497
89ccf66aa73d
renamed Thm.capply to Thm.apply, and Thm.cabs to Thm.lambda in conformance with similar operations in structure Term and Logic;
wenzelm
parents:
46475
diff
changeset
|
262 |
fun apply |
16656 | 263 |
(cf as Cterm {t = f, T = Type ("fun", [dty, rty]), maxidx = maxidx1, sorts = sorts1, ...}) |
264 |
(cx as Cterm {t = x, T, maxidx = maxidx2, sorts = sorts2, ...}) = |
|
16601
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
265 |
if T = dty then |
52788 | 266 |
Cterm {thy = merge_thys0 cf cx, |
16656 | 267 |
t = f $ x, |
268 |
T = rty, |
|
269 |
maxidx = Int.max (maxidx1, maxidx2), |
|
16601
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
270 |
sorts = Sorts.union sorts1 sorts2} |
46497
89ccf66aa73d
renamed Thm.capply to Thm.apply, and Thm.cabs to Thm.lambda in conformance with similar operations in structure Term and Logic;
wenzelm
parents:
46475
diff
changeset
|
271 |
else raise CTERM ("apply: types don't agree", [cf, cx]) |
89ccf66aa73d
renamed Thm.capply to Thm.apply, and Thm.cabs to Thm.lambda in conformance with similar operations in structure Term and Logic;
wenzelm
parents:
46475
diff
changeset
|
272 |
| apply cf cx = raise CTERM ("apply: first arg is not a function", [cf, cx]); |
250 | 273 |
|
46497
89ccf66aa73d
renamed Thm.capply to Thm.apply, and Thm.cabs to Thm.lambda in conformance with similar operations in structure Term and Logic;
wenzelm
parents:
46475
diff
changeset
|
274 |
fun lambda_name |
32198 | 275 |
(x, ct1 as Cterm {t = t1, T = T1, maxidx = maxidx1, sorts = sorts1, ...}) |
16656 | 276 |
(ct2 as Cterm {t = t2, T = T2, maxidx = maxidx2, sorts = sorts2, ...}) = |
32198 | 277 |
let val t = Term.lambda_name (x, t1) t2 in |
52788 | 278 |
Cterm {thy = merge_thys0 ct1 ct2, |
16656 | 279 |
t = t, T = T1 --> T2, |
280 |
maxidx = Int.max (maxidx1, maxidx2), |
|
281 |
sorts = Sorts.union sorts1 sorts2} |
|
16601
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
282 |
end; |
229
4002c4cd450c
Pure: MAJOR CHANGE. Moved ML types ctyp and cterm and their associated
lcp
parents:
225
diff
changeset
|
283 |
|
46497
89ccf66aa73d
renamed Thm.capply to Thm.apply, and Thm.cabs to Thm.lambda in conformance with similar operations in structure Term and Logic;
wenzelm
parents:
46475
diff
changeset
|
284 |
fun lambda t u = lambda_name ("", t) u; |
32198 | 285 |
|
20580
6fb75df09253
added dest_arg, i.e. a tuned version of #2 o dest_comb;
wenzelm
parents:
20548
diff
changeset
|
286 |
|
22909 | 287 |
(* indexes *) |
288 |
||
52788 | 289 |
fun adjust_maxidx_cterm i (ct as Cterm {thy, t, T, maxidx, sorts}) = |
20580
6fb75df09253
added dest_arg, i.e. a tuned version of #2 o dest_comb;
wenzelm
parents:
20548
diff
changeset
|
290 |
if maxidx = i then ct |
6fb75df09253
added dest_arg, i.e. a tuned version of #2 o dest_comb;
wenzelm
parents:
20548
diff
changeset
|
291 |
else if maxidx < i then |
52788 | 292 |
Cterm {maxidx = i, thy = thy, t = t, T = T, sorts = sorts} |
20580
6fb75df09253
added dest_arg, i.e. a tuned version of #2 o dest_comb;
wenzelm
parents:
20548
diff
changeset
|
293 |
else |
52788 | 294 |
Cterm {maxidx = Int.max (maxidx_of_term t, i), thy = thy, t = t, T = T, sorts = sorts}; |
20580
6fb75df09253
added dest_arg, i.e. a tuned version of #2 o dest_comb;
wenzelm
parents:
20548
diff
changeset
|
295 |
|
52788 | 296 |
fun incr_indexes_cterm i (ct as Cterm {thy, t, T, maxidx, sorts}) = |
22909 | 297 |
if i < 0 then raise CTERM ("negative increment", [ct]) |
298 |
else if i = 0 then ct |
|
59787 | 299 |
else Cterm {thy = thy, t = Logic.incr_indexes ([], [], i) t, |
22909 | 300 |
T = Logic.incr_tvar i T, maxidx = maxidx + i, sorts = sorts}; |
301 |
||
302 |
||
303 |
(* matching *) |
|
304 |
||
305 |
local |
|
306 |
||
307 |
fun gen_match match |
|
20512 | 308 |
(ct1 as Cterm {t = t1, sorts = sorts1, ...}, |
20815 | 309 |
ct2 as Cterm {t = t2, sorts = sorts2, maxidx = maxidx2, ...}) = |
10416
5b33e732e459
- Moved rewriting functions to meta_simplifier.ML
berghofe
parents:
10348
diff
changeset
|
310 |
let |
52788 | 311 |
val thy = merge_thys0 ct1 ct2; |
24143
90a9a6fe0d01
replaced Theory.self_ref by Theory.check_thy, which now produces a checked ref;
wenzelm
parents:
23781
diff
changeset
|
312 |
val (Tinsts, tinsts) = match thy (t1, t2) (Vartab.empty, Vartab.empty); |
16601
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
313 |
val sorts = Sorts.union sorts1 sorts2; |
20512 | 314 |
fun mk_cTinst ((a, i), (S, T)) = |
52788 | 315 |
(Ctyp {T = TVar ((a, i), S), thy = thy, maxidx = i, sorts = sorts}, |
316 |
Ctyp {T = T, thy = thy, maxidx = maxidx2, sorts = sorts}); |
|
20512 | 317 |
fun mk_ctinst ((x, i), (T, t)) = |
32035 | 318 |
let val T = Envir.subst_type Tinsts T in |
52788 | 319 |
(Cterm {t = Var ((x, i), T), T = T, thy = thy, maxidx = i, sorts = sorts}, |
320 |
Cterm {t = t, T = T, thy = thy, maxidx = maxidx2, sorts = sorts}) |
|
10416
5b33e732e459
- Moved rewriting functions to meta_simplifier.ML
berghofe
parents:
10348
diff
changeset
|
321 |
end; |
16656 | 322 |
in (Vartab.fold (cons o mk_cTinst) Tinsts [], Vartab.fold (cons o mk_ctinst) tinsts []) end; |
10416
5b33e732e459
- Moved rewriting functions to meta_simplifier.ML
berghofe
parents:
10348
diff
changeset
|
323 |
|
22909 | 324 |
in |
10416
5b33e732e459
- Moved rewriting functions to meta_simplifier.ML
berghofe
parents:
10348
diff
changeset
|
325 |
|
22909 | 326 |
val match = gen_match Pattern.match; |
327 |
val first_order_match = gen_match Pattern.first_order_match; |
|
328 |
||
329 |
end; |
|
10416
5b33e732e459
- Moved rewriting functions to meta_simplifier.ML
berghofe
parents:
10348
diff
changeset
|
330 |
|
2509 | 331 |
|
332 |
||
28321
9f4499bf9384
type thm: fully internal derivation, no longer exported;
wenzelm
parents:
28290
diff
changeset
|
333 |
(*** Derivations and Theorems ***) |
229
4002c4cd450c
Pure: MAJOR CHANGE. Moved ML types ctyp and cterm and their associated
lcp
parents:
225
diff
changeset
|
334 |
|
32590
95f4f08f950f
replaced opaque signature matching by plain old abstype (again, cf. ac4498f95d1c) -- this recovers pretty printing in SML/NJ and Poly/ML 5.3;
wenzelm
parents:
32198
diff
changeset
|
335 |
abstype thm = Thm of |
40124 | 336 |
deriv * (*derivation*) |
52788 | 337 |
{thy: theory, (*background theory*) |
40124 | 338 |
tags: Properties.T, (*additional annotations/comments*) |
339 |
maxidx: int, (*maximum index of any Var or TVar*) |
|
340 |
shyps: sort Ord_List.T, (*sort hypotheses*) |
|
341 |
hyps: term Ord_List.T, (*hypotheses*) |
|
342 |
tpairs: (term * term) list, (*flex-flex pairs*) |
|
343 |
prop: term} (*conclusion*) |
|
28624 | 344 |
and deriv = Deriv of |
39687 | 345 |
{promises: (serial * thm future) Ord_List.T, |
37309 | 346 |
body: Proofterm.proof_body} |
32590
95f4f08f950f
replaced opaque signature matching by plain old abstype (again, cf. ac4498f95d1c) -- this recovers pretty printing in SML/NJ and Poly/ML 5.3;
wenzelm
parents:
32198
diff
changeset
|
347 |
with |
0 | 348 |
|
23601 | 349 |
type conv = cterm -> thm; |
350 |
||
16725 | 351 |
(*errors involving theorems*) |
352 |
exception THM of string * int * thm list; |
|
13658
c9ad3e64ddcf
Changed handling of flex-flex constraints: now stored in separate
berghofe
parents:
13642
diff
changeset
|
353 |
|
28321
9f4499bf9384
type thm: fully internal derivation, no longer exported;
wenzelm
parents:
28290
diff
changeset
|
354 |
fun rep_thm (Thm (_, args)) = args; |
0 | 355 |
|
52788 | 356 |
fun crep_thm (Thm (_, {thy, tags, maxidx, shyps, hyps, tpairs, prop})) = |
357 |
let fun cterm max t = Cterm {thy = thy, t = t, T = propT, maxidx = max, sorts = shyps} in |
|
358 |
{thy = thy, tags = tags, maxidx = maxidx, shyps = shyps, |
|
16425
2427be27cc60
accomodate identification of type Sign.sg and theory;
wenzelm
parents:
16352
diff
changeset
|
359 |
hyps = map (cterm ~1) hyps, |
59058
a78612c67ec0
renamed "pairself" to "apply2", in accordance to @{apply 2};
wenzelm
parents:
58950
diff
changeset
|
360 |
tpairs = map (apply2 (cterm maxidx)) tpairs, |
16425
2427be27cc60
accomodate identification of type Sign.sg and theory;
wenzelm
parents:
16352
diff
changeset
|
361 |
prop = cterm maxidx prop} |
1517 | 362 |
end; |
363 |
||
31947
7daee3bed3af
clarified strip_shyps: proper type witnesses for present sorts;
wenzelm
parents:
31945
diff
changeset
|
364 |
fun fold_terms f (Thm (_, {tpairs, prop, hyps, ...})) = |
7daee3bed3af
clarified strip_shyps: proper type witnesses for present sorts;
wenzelm
parents:
31945
diff
changeset
|
365 |
fold (fn (t, u) => f t #> f u) tpairs #> f prop #> fold f hyps; |
7daee3bed3af
clarified strip_shyps: proper type witnesses for present sorts;
wenzelm
parents:
31945
diff
changeset
|
366 |
|
16725 | 367 |
fun terms_of_tpairs tpairs = fold_rev (fn (t, u) => cons t o cons u) tpairs []; |
368 |
||
369 |
fun eq_tpairs ((t, u), (t', u')) = t aconv t' andalso u aconv u'; |
|
18944 | 370 |
fun union_tpairs ts us = Library.merge eq_tpairs (ts, us); |
16884
1678a796b6b2
tuned instantiate (avoid subst_atomic, subst_atomic_types);
wenzelm
parents:
16847
diff
changeset
|
371 |
val maxidx_tpairs = fold (fn (t, u) => Term.maxidx_term t #> Term.maxidx_term u); |
16725 | 372 |
|
373 |
fun attach_tpairs tpairs prop = |
|
374 |
Logic.list_implies (map Logic.mk_equals tpairs, prop); |
|
375 |
||
28321
9f4499bf9384
type thm: fully internal derivation, no longer exported;
wenzelm
parents:
28290
diff
changeset
|
376 |
fun full_prop_of (Thm (_, {tpairs, prop, ...})) = attach_tpairs tpairs prop; |
16945 | 377 |
|
39687 | 378 |
val union_hyps = Ord_List.union Term_Ord.fast_term_ord; |
379 |
val insert_hyps = Ord_List.insert Term_Ord.fast_term_ord; |
|
380 |
val remove_hyps = Ord_List.remove Term_Ord.fast_term_ord; |
|
22365 | 381 |
|
16945 | 382 |
|
24143
90a9a6fe0d01
replaced Theory.self_ref by Theory.check_thy, which now produces a checked ref;
wenzelm
parents:
23781
diff
changeset
|
383 |
(* merge theories of cterms/thms -- trivial absorption only *) |
16945 | 384 |
|
52788 | 385 |
fun merge_thys1 (Cterm {thy = thy1, ...}) (Thm (_, {thy = thy2, ...})) = |
386 |
Theory.merge (thy1, thy2); |
|
16945 | 387 |
|
52788 | 388 |
fun merge_thys2 (Thm (_, {thy = thy1, ...})) (Thm (_, {thy = thy2, ...})) = |
389 |
Theory.merge (thy1, thy2); |
|
16945 | 390 |
|
0 | 391 |
|
22365 | 392 |
(* basic components *) |
16135 | 393 |
|
52788 | 394 |
val theory_of_thm = #thy o rep_thm; |
60638 | 395 |
val theory_name_of_thm = Context.theory_name o #thy o rep_thm; |
28321
9f4499bf9384
type thm: fully internal derivation, no longer exported;
wenzelm
parents:
28290
diff
changeset
|
396 |
val maxidx_of = #maxidx o rep_thm; |
19910 | 397 |
fun maxidx_thm th i = Int.max (maxidx_of th, i); |
28321
9f4499bf9384
type thm: fully internal derivation, no longer exported;
wenzelm
parents:
28290
diff
changeset
|
398 |
val hyps_of = #hyps o rep_thm; |
9f4499bf9384
type thm: fully internal derivation, no longer exported;
wenzelm
parents:
28290
diff
changeset
|
399 |
val prop_of = #prop o rep_thm; |
9f4499bf9384
type thm: fully internal derivation, no longer exported;
wenzelm
parents:
28290
diff
changeset
|
400 |
val tpairs_of = #tpairs o rep_thm; |
0 | 401 |
|
16601
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
402 |
val concl_of = Logic.strip_imp_concl o prop_of; |
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
403 |
val prems_of = Logic.strip_imp_prems o prop_of; |
21576 | 404 |
val nprems_of = Logic.count_prems o prop_of; |
19305 | 405 |
fun no_prems th = nprems_of th = 0; |
16601
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
406 |
|
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
407 |
fun major_prem_of th = |
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
408 |
(case prems_of th of |
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
409 |
prem :: _ => Logic.strip_assums_concl prem |
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
410 |
| [] => raise THM ("major_prem_of: rule with no premises", 0, [th])); |
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
411 |
|
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
412 |
(*the statement of any thm is a cterm*) |
52788 | 413 |
fun cprop_of (Thm (_, {thy, maxidx, shyps, prop, ...})) = |
414 |
Cterm {thy = thy, maxidx = maxidx, T = propT, t = prop, sorts = shyps}; |
|
16601
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
415 |
|
52788 | 416 |
fun cprem_of (th as Thm (_, {thy, maxidx, shyps, prop, ...})) i = |
417 |
Cterm {thy = thy, maxidx = maxidx, T = propT, sorts = shyps, |
|
18145 | 418 |
t = Logic.nth_prem (i, prop) handle TERM _ => raise THM ("cprem_of", i, [th])}; |
18035 | 419 |
|
16656 | 420 |
(*explicit transfer to a super theory*) |
16425
2427be27cc60
accomodate identification of type Sign.sg and theory;
wenzelm
parents:
16352
diff
changeset
|
421 |
fun transfer thy' thm = |
3895 | 422 |
let |
52788 | 423 |
val Thm (der, {thy, tags, maxidx, shyps, hyps, tpairs, prop}) = thm; |
26665 | 424 |
val _ = Theory.subthy (thy, thy') orelse raise THM ("transfer: not a super theory", 0, [thm]); |
3895 | 425 |
in |
52788 | 426 |
if Theory.eq_thy (thy, thy') then thm |
16945 | 427 |
else |
28321
9f4499bf9384
type thm: fully internal derivation, no longer exported;
wenzelm
parents:
28290
diff
changeset
|
428 |
Thm (der, |
52788 | 429 |
{thy = thy', |
21646
c07b5b0e8492
thm/prf: separate official name vs. additional tags;
wenzelm
parents:
21576
diff
changeset
|
430 |
tags = tags, |
16945 | 431 |
maxidx = maxidx, |
432 |
shyps = shyps, |
|
433 |
hyps = hyps, |
|
434 |
tpairs = tpairs, |
|
28321
9f4499bf9384
type thm: fully internal derivation, no longer exported;
wenzelm
parents:
28290
diff
changeset
|
435 |
prop = prop}) |
3895 | 436 |
end; |
387
69f4356d915d
new datatype theory, supports 'draft theories' and incremental extension:
wenzelm
parents:
309
diff
changeset
|
437 |
|
59969
bcccad156236
explicitly checked alpha conversion -- actual renaming happens outside kernel;
wenzelm
parents:
59917
diff
changeset
|
438 |
(*implicit alpha-conversion*) |
bcccad156236
explicitly checked alpha conversion -- actual renaming happens outside kernel;
wenzelm
parents:
59917
diff
changeset
|
439 |
fun renamed_prop prop' (Thm (der, {thy, tags, maxidx, shyps, hyps, tpairs, prop})) = |
bcccad156236
explicitly checked alpha conversion -- actual renaming happens outside kernel;
wenzelm
parents:
59917
diff
changeset
|
440 |
if prop aconv prop' then |
bcccad156236
explicitly checked alpha conversion -- actual renaming happens outside kernel;
wenzelm
parents:
59917
diff
changeset
|
441 |
Thm (der, {thy = thy, tags = tags, maxidx = maxidx, shyps = shyps, |
bcccad156236
explicitly checked alpha conversion -- actual renaming happens outside kernel;
wenzelm
parents:
59917
diff
changeset
|
442 |
hyps = hyps, tpairs = tpairs, prop = prop'}) |
bcccad156236
explicitly checked alpha conversion -- actual renaming happens outside kernel;
wenzelm
parents:
59917
diff
changeset
|
443 |
else raise TERM ("renamed_prop: props disagree", [prop, prop']); |
bcccad156236
explicitly checked alpha conversion -- actual renaming happens outside kernel;
wenzelm
parents:
59917
diff
changeset
|
444 |
|
58950
d07464875dd4
optional proof context for unify operations, for the sake of proper local options;
wenzelm
parents:
58946
diff
changeset
|
445 |
fun make_context NONE thy = Context.Theory thy |
d07464875dd4
optional proof context for unify operations, for the sake of proper local options;
wenzelm
parents:
58946
diff
changeset
|
446 |
| make_context (SOME ctxt) thy = |
d07464875dd4
optional proof context for unify operations, for the sake of proper local options;
wenzelm
parents:
58946
diff
changeset
|
447 |
if Theory.subthy (thy, Proof_Context.theory_of ctxt) then Context.Proof ctxt |
d07464875dd4
optional proof context for unify operations, for the sake of proper local options;
wenzelm
parents:
58946
diff
changeset
|
448 |
else raise THEORY ("Bad context", [thy, Proof_Context.theory_of ctxt]); |
d07464875dd4
optional proof context for unify operations, for the sake of proper local options;
wenzelm
parents:
58946
diff
changeset
|
449 |
|
16945 | 450 |
(*explicit weakening: maps |- B to A |- B*) |
451 |
fun weaken raw_ct th = |
|
452 |
let |
|
20261 | 453 |
val ct as Cterm {t = A, T, sorts, maxidx = maxidxA, ...} = adjust_maxidx_cterm ~1 raw_ct; |
28321
9f4499bf9384
type thm: fully internal derivation, no longer exported;
wenzelm
parents:
28290
diff
changeset
|
454 |
val Thm (der, {tags, maxidx, shyps, hyps, tpairs, prop, ...}) = th; |
16945 | 455 |
in |
456 |
if T <> propT then |
|
457 |
raise THM ("weaken: assumptions must have type prop", 0, []) |
|
458 |
else if maxidxA <> ~1 then |
|
459 |
raise THM ("weaken: assumptions may not contain schematic variables", maxidxA, []) |
|
460 |
else |
|
28321
9f4499bf9384
type thm: fully internal derivation, no longer exported;
wenzelm
parents:
28290
diff
changeset
|
461 |
Thm (der, |
52788 | 462 |
{thy = merge_thys1 ct th, |
21646
c07b5b0e8492
thm/prf: separate official name vs. additional tags;
wenzelm
parents:
21576
diff
changeset
|
463 |
tags = tags, |
16945 | 464 |
maxidx = maxidx, |
465 |
shyps = Sorts.union sorts shyps, |
|
28354 | 466 |
hyps = insert_hyps A hyps, |
16945 | 467 |
tpairs = tpairs, |
28321
9f4499bf9384
type thm: fully internal derivation, no longer exported;
wenzelm
parents:
28290
diff
changeset
|
468 |
prop = prop}) |
16945 | 469 |
end; |
16656 | 470 |
|
28624 | 471 |
fun weaken_sorts raw_sorts ct = |
472 |
let |
|
52788 | 473 |
val Cterm {thy, t, T, maxidx, sorts} = ct; |
28624 | 474 |
val more_sorts = Sorts.make (map (Sign.certify_sort thy) raw_sorts); |
475 |
val sorts' = Sorts.union sorts more_sorts; |
|
52788 | 476 |
in Cterm {thy = thy, t = t, T = T, maxidx = maxidx, sorts = sorts'} end; |
28624 | 477 |
|
16656 | 478 |
(*dangling sort constraints of a thm*) |
31947
7daee3bed3af
clarified strip_shyps: proper type witnesses for present sorts;
wenzelm
parents:
31945
diff
changeset
|
479 |
fun extra_shyps (th as Thm (_, {shyps, ...})) = |
7daee3bed3af
clarified strip_shyps: proper type witnesses for present sorts;
wenzelm
parents:
31945
diff
changeset
|
480 |
Sorts.subtract (fold_terms Sorts.insert_term th []) shyps; |
28321
9f4499bf9384
type thm: fully internal derivation, no longer exported;
wenzelm
parents:
28290
diff
changeset
|
481 |
|
9f4499bf9384
type thm: fully internal derivation, no longer exported;
wenzelm
parents:
28290
diff
changeset
|
482 |
|
9f4499bf9384
type thm: fully internal derivation, no longer exported;
wenzelm
parents:
28290
diff
changeset
|
483 |
|
32725 | 484 |
(** derivations and promised proofs **) |
28321
9f4499bf9384
type thm: fully internal derivation, no longer exported;
wenzelm
parents:
28290
diff
changeset
|
485 |
|
32059
7991cdf10a54
support for arbitrarity nested future proofs -- replaced crude order by explicit normalization (which might loop for bad dependencies);
wenzelm
parents:
32035
diff
changeset
|
486 |
fun make_deriv promises oracles thms proof = |
7991cdf10a54
support for arbitrarity nested future proofs -- replaced crude order by explicit normalization (which might loop for bad dependencies);
wenzelm
parents:
32035
diff
changeset
|
487 |
Deriv {promises = promises, body = PBody {oracles = oracles, thms = thms, proof = proof}}; |
28321
9f4499bf9384
type thm: fully internal derivation, no longer exported;
wenzelm
parents:
28290
diff
changeset
|
488 |
|
37309 | 489 |
val empty_deriv = make_deriv [] [] [] Proofterm.MinProof; |
28321
9f4499bf9384
type thm: fully internal derivation, no longer exported;
wenzelm
parents:
28290
diff
changeset
|
490 |
|
28330 | 491 |
|
28354 | 492 |
(* inference rules *) |
28321
9f4499bf9384
type thm: fully internal derivation, no longer exported;
wenzelm
parents:
28290
diff
changeset
|
493 |
|
28378
60cc0359363d
promise: include check into future body, i.e. joined results are always valid;
wenzelm
parents:
28364
diff
changeset
|
494 |
fun promise_ord ((i, _), (j, _)) = int_ord (j, i); |
28330 | 495 |
|
52487
48bc24467008
backout dedd7952a62c: static "proofs" value within theory prevents later inferencing with different configuration;
wenzelm
parents:
52470
diff
changeset
|
496 |
fun deriv_rule2 f |
32059
7991cdf10a54
support for arbitrarity nested future proofs -- replaced crude order by explicit normalization (which might loop for bad dependencies);
wenzelm
parents:
32035
diff
changeset
|
497 |
(Deriv {promises = ps1, body = PBody {oracles = oras1, thms = thms1, proof = prf1}}) |
7991cdf10a54
support for arbitrarity nested future proofs -- replaced crude order by explicit normalization (which might loop for bad dependencies);
wenzelm
parents:
32035
diff
changeset
|
498 |
(Deriv {promises = ps2, body = PBody {oracles = oras2, thms = thms2, proof = prf2}}) = |
28321
9f4499bf9384
type thm: fully internal derivation, no longer exported;
wenzelm
parents:
28290
diff
changeset
|
499 |
let |
39687 | 500 |
val ps = Ord_List.union promise_ord ps1 ps2; |
44334 | 501 |
val oras = Proofterm.unions_oracles [oras1, oras2]; |
502 |
val thms = Proofterm.unions_thms [thms1, thms2]; |
|
28321
9f4499bf9384
type thm: fully internal derivation, no longer exported;
wenzelm
parents:
28290
diff
changeset
|
503 |
val prf = |
52487
48bc24467008
backout dedd7952a62c: static "proofs" value within theory prevents later inferencing with different configuration;
wenzelm
parents:
52470
diff
changeset
|
504 |
(case ! Proofterm.proofs of |
28321
9f4499bf9384
type thm: fully internal derivation, no longer exported;
wenzelm
parents:
28290
diff
changeset
|
505 |
2 => f prf1 prf2 |
28804
5d3b1df16353
refined notion of derivation, consiting of promises and proof_body;
wenzelm
parents:
28675
diff
changeset
|
506 |
| 1 => MinProof |
5d3b1df16353
refined notion of derivation, consiting of promises and proof_body;
wenzelm
parents:
28675
diff
changeset
|
507 |
| 0 => MinProof |
28321
9f4499bf9384
type thm: fully internal derivation, no longer exported;
wenzelm
parents:
28290
diff
changeset
|
508 |
| i => error ("Illegal level of detail for proof objects: " ^ string_of_int i)); |
32059
7991cdf10a54
support for arbitrarity nested future proofs -- replaced crude order by explicit normalization (which might loop for bad dependencies);
wenzelm
parents:
32035
diff
changeset
|
509 |
in make_deriv ps oras thms prf end; |
28321
9f4499bf9384
type thm: fully internal derivation, no longer exported;
wenzelm
parents:
28290
diff
changeset
|
510 |
|
52487
48bc24467008
backout dedd7952a62c: static "proofs" value within theory prevents later inferencing with different configuration;
wenzelm
parents:
52470
diff
changeset
|
511 |
fun deriv_rule1 f = deriv_rule2 (K f) empty_deriv; |
48bc24467008
backout dedd7952a62c: static "proofs" value within theory prevents later inferencing with different configuration;
wenzelm
parents:
52470
diff
changeset
|
512 |
fun deriv_rule0 prf = deriv_rule1 I (make_deriv [] [] [] prf); |
28321
9f4499bf9384
type thm: fully internal derivation, no longer exported;
wenzelm
parents:
28290
diff
changeset
|
513 |
|
36621
2fd4e2c76636
proof terms for strip_shyps, based on the version by krauss/schropp with some notable differences:
wenzelm
parents:
36619
diff
changeset
|
514 |
fun deriv_rule_unconditional f (Deriv {promises, body = PBody {oracles, thms, proof}}) = |
2fd4e2c76636
proof terms for strip_shyps, based on the version by krauss/schropp with some notable differences:
wenzelm
parents:
36619
diff
changeset
|
515 |
make_deriv promises oracles thms (f proof); |
2fd4e2c76636
proof terms for strip_shyps, based on the version by krauss/schropp with some notable differences:
wenzelm
parents:
36619
diff
changeset
|
516 |
|
1238 | 517 |
|
32725 | 518 |
(* fulfilled proofs *) |
519 |
||
44331 | 520 |
fun raw_body_of (Thm (Deriv {body, ...}, _)) = body; |
521 |
fun raw_promises_of (Thm (Deriv {promises, ...}, _)) = promises; |
|
522 |
||
523 |
fun join_promises [] = () |
|
524 |
| join_promises promises = join_promises_of (Future.joins (map snd promises)) |
|
49008
a3cdb49c22cc
proper merge of promises to avoid exponential blow-up in pathologic situations (e.g. lack of PThm wrapping);
wenzelm
parents:
48263
diff
changeset
|
525 |
and join_promises_of thms = join_promises (Ord_List.make promise_ord (maps raw_promises_of thms)); |
32725 | 526 |
|
52788 | 527 |
fun fulfill_body (Thm (Deriv {promises, body}, {thy, ...})) = |
528 |
Proofterm.fulfill_norm_proof thy (fulfill_promises promises) body |
|
44331 | 529 |
and fulfill_promises promises = |
530 |
map fst promises ~~ map fulfill_body (Future.joins (map snd promises)); |
|
32725 | 531 |
|
44333
cc53ce50f738
reverted to join_bodies/join_proofs based on fold_body_thms to regain performance (escpecially of HOL-Proofs) -- see also aa9c1e9ef2ce and 4e2abb045eac;
wenzelm
parents:
44331
diff
changeset
|
532 |
fun proof_bodies_of thms = |
cc53ce50f738
reverted to join_bodies/join_proofs based on fold_body_thms to regain performance (escpecially of HOL-Proofs) -- see also aa9c1e9ef2ce and 4e2abb045eac;
wenzelm
parents:
44331
diff
changeset
|
533 |
let |
cc53ce50f738
reverted to join_bodies/join_proofs based on fold_body_thms to regain performance (escpecially of HOL-Proofs) -- see also aa9c1e9ef2ce and 4e2abb045eac;
wenzelm
parents:
44331
diff
changeset
|
534 |
val _ = join_promises_of thms; |
cc53ce50f738
reverted to join_bodies/join_proofs based on fold_body_thms to regain performance (escpecially of HOL-Proofs) -- see also aa9c1e9ef2ce and 4e2abb045eac;
wenzelm
parents:
44331
diff
changeset
|
535 |
val bodies = map fulfill_body thms; |
cc53ce50f738
reverted to join_bodies/join_proofs based on fold_body_thms to regain performance (escpecially of HOL-Proofs) -- see also aa9c1e9ef2ce and 4e2abb045eac;
wenzelm
parents:
44331
diff
changeset
|
536 |
val _ = Proofterm.join_bodies bodies; |
cc53ce50f738
reverted to join_bodies/join_proofs based on fold_body_thms to regain performance (escpecially of HOL-Proofs) -- see also aa9c1e9ef2ce and 4e2abb045eac;
wenzelm
parents:
44331
diff
changeset
|
537 |
in bodies end; |
cc53ce50f738
reverted to join_bodies/join_proofs based on fold_body_thms to regain performance (escpecially of HOL-Proofs) -- see also aa9c1e9ef2ce and 4e2abb045eac;
wenzelm
parents:
44331
diff
changeset
|
538 |
|
cc53ce50f738
reverted to join_bodies/join_proofs based on fold_body_thms to regain performance (escpecially of HOL-Proofs) -- see also aa9c1e9ef2ce and 4e2abb045eac;
wenzelm
parents:
44331
diff
changeset
|
539 |
val proof_body_of = singleton proof_bodies_of; |
44331 | 540 |
val proof_of = Proofterm.proof_of o proof_body_of; |
32725 | 541 |
|
44333
cc53ce50f738
reverted to join_bodies/join_proofs based on fold_body_thms to regain performance (escpecially of HOL-Proofs) -- see also aa9c1e9ef2ce and 4e2abb045eac;
wenzelm
parents:
44331
diff
changeset
|
542 |
val join_proofs = ignore o proof_bodies_of; |
32725 | 543 |
|
544 |
||
545 |
(* derivation status *) |
|
546 |
||
50126
3dec88149176
theorem status about oracles/futures is no longer printed by default;
wenzelm
parents:
49008
diff
changeset
|
547 |
fun peek_status (Thm (Deriv {promises, body}, _)) = |
32725 | 548 |
let |
549 |
val ps = map (Future.peek o snd) promises; |
|
550 |
val bodies = body :: |
|
44331 | 551 |
map_filter (fn SOME (Exn.Res th) => SOME (raw_body_of th) | _ => NONE) ps; |
50126
3dec88149176
theorem status about oracles/futures is no longer printed by default;
wenzelm
parents:
49008
diff
changeset
|
552 |
val {oracle, unfinished, failed} = Proofterm.peek_status bodies; |
32725 | 553 |
in |
554 |
{oracle = oracle, |
|
555 |
unfinished = unfinished orelse exists is_none ps, |
|
556 |
failed = failed orelse exists (fn SOME (Exn.Exn _) => true | _ => false) ps} |
|
557 |
end; |
|
558 |
||
559 |
||
560 |
(* future rule *) |
|
561 |
||
36613
f3157c288aca
simplified primitive Thm.future: more direct theory check, do not hardwire strip_shyps here;
wenzelm
parents:
36330
diff
changeset
|
562 |
fun future_result i orig_thy orig_shyps orig_prop thm = |
32725 | 563 |
let |
36613
f3157c288aca
simplified primitive Thm.future: more direct theory check, do not hardwire strip_shyps here;
wenzelm
parents:
36330
diff
changeset
|
564 |
fun err msg = raise THM ("future_result: " ^ msg, 0, [thm]); |
52788 | 565 |
val Thm (Deriv {promises, ...}, {thy, shyps, hyps, tpairs, prop, ...}) = thm; |
36613
f3157c288aca
simplified primitive Thm.future: more direct theory check, do not hardwire strip_shyps here;
wenzelm
parents:
36330
diff
changeset
|
566 |
|
52788 | 567 |
val _ = Theory.eq_thy (thy, orig_thy) orelse err "bad theory"; |
32725 | 568 |
val _ = prop aconv orig_prop orelse err "bad prop"; |
569 |
val _ = null tpairs orelse err "bad tpairs"; |
|
570 |
val _ = null hyps orelse err "bad hyps"; |
|
571 |
val _ = Sorts.subset (shyps, orig_shyps) orelse err "bad shyps"; |
|
572 |
val _ = forall (fn (j, _) => i <> j) promises orelse err "bad dependencies"; |
|
44331 | 573 |
val _ = join_promises promises; |
32725 | 574 |
in thm end; |
575 |
||
576 |
fun future future_thm ct = |
|
577 |
let |
|
52788 | 578 |
val Cterm {thy = thy, t = prop, T, maxidx, sorts} = ct; |
32725 | 579 |
val _ = T <> propT andalso raise CTERM ("future: prop expected", [ct]); |
580 |
||
581 |
val i = serial (); |
|
582 |
val future = future_thm |> Future.map (future_result i thy sorts prop); |
|
583 |
in |
|
37309 | 584 |
Thm (make_deriv [(i, future)] [] [] (Proofterm.promise_proof thy i prop), |
52788 | 585 |
{thy = thy, |
32725 | 586 |
tags = [], |
587 |
maxidx = maxidx, |
|
588 |
shyps = sorts, |
|
589 |
hyps = [], |
|
590 |
tpairs = [], |
|
591 |
prop = prop}) |
|
592 |
end; |
|
593 |
||
594 |
||
595 |
(* closed derivations with official name *) |
|
596 |
||
41699 | 597 |
(*non-deterministic, depends on unknown promises*) |
37297 | 598 |
fun derivation_name (Thm (Deriv {body, ...}, {shyps, hyps, prop, ...})) = |
37309 | 599 |
Proofterm.get_name shyps hyps prop (Proofterm.proof_of body); |
32725 | 600 |
|
36744
6e1f3d609a68
renamed Thm.get_name -> Thm.derivation_name and Thm.put_name -> Thm.name_derivation, to emphasize the true nature of these operations;
wenzelm
parents:
36742
diff
changeset
|
601 |
fun name_derivation name (thm as Thm (der, args)) = |
32725 | 602 |
let |
603 |
val Deriv {promises, body} = der; |
|
52788 | 604 |
val {thy, shyps, hyps, prop, tpairs, ...} = args; |
32725 | 605 |
val _ = null tpairs orelse raise THM ("put_name: unsolved flex-flex constraints", 0, [thm]); |
606 |
||
41700
f33d5a00c25d
thm_proof: visible fulfill_body only, without joining nested thms -- retain proof irrelevance, which is important for parallel performance;
wenzelm
parents:
41699
diff
changeset
|
607 |
val ps = map (apsnd (Future.map fulfill_body)) promises; |
37309 | 608 |
val (pthm, proof) = Proofterm.thm_proof thy name shyps hyps prop ps body; |
32725 | 609 |
val der' = make_deriv [] [] [pthm] proof; |
610 |
in Thm (der', args) end; |
|
611 |
||
612 |
||
1238 | 613 |
|
1529 | 614 |
(** Axioms **) |
387
69f4356d915d
new datatype theory, supports 'draft theories' and incremental extension:
wenzelm
parents:
309
diff
changeset
|
615 |
|
28675
fb68c0767004
renamed get_axiom_i to axiom, removed obsolete get_axiom;
wenzelm
parents:
28648
diff
changeset
|
616 |
fun axiom theory name = |
387
69f4356d915d
new datatype theory, supports 'draft theories' and incremental extension:
wenzelm
parents:
309
diff
changeset
|
617 |
let |
16425
2427be27cc60
accomodate identification of type Sign.sg and theory;
wenzelm
parents:
16352
diff
changeset
|
618 |
fun get_ax thy = |
59884 | 619 |
Name_Space.lookup (Theory.axiom_table thy) name |
620 |
|> Option.map (fn prop => |
|
24143
90a9a6fe0d01
replaced Theory.self_ref by Theory.check_thy, which now produces a checked ref;
wenzelm
parents:
23781
diff
changeset
|
621 |
let |
52487
48bc24467008
backout dedd7952a62c: static "proofs" value within theory prevents later inferencing with different configuration;
wenzelm
parents:
52470
diff
changeset
|
622 |
val der = deriv_rule0 (Proofterm.axm_proof name prop); |
24143
90a9a6fe0d01
replaced Theory.self_ref by Theory.check_thy, which now produces a checked ref;
wenzelm
parents:
23781
diff
changeset
|
623 |
val maxidx = maxidx_of_term prop; |
26640
92e6d3ec91bd
simplified handling of sorts, removed unnecessary universal witness;
wenzelm
parents:
26631
diff
changeset
|
624 |
val shyps = Sorts.insert_term prop []; |
24143
90a9a6fe0d01
replaced Theory.self_ref by Theory.check_thy, which now produces a checked ref;
wenzelm
parents:
23781
diff
changeset
|
625 |
in |
52788 | 626 |
Thm (der, {thy = thy, tags = [], |
28321
9f4499bf9384
type thm: fully internal derivation, no longer exported;
wenzelm
parents:
28290
diff
changeset
|
627 |
maxidx = maxidx, shyps = shyps, hyps = [], tpairs = [], prop = prop}) |
24143
90a9a6fe0d01
replaced Theory.self_ref by Theory.check_thy, which now produces a checked ref;
wenzelm
parents:
23781
diff
changeset
|
628 |
end); |
387
69f4356d915d
new datatype theory, supports 'draft theories' and incremental extension:
wenzelm
parents:
309
diff
changeset
|
629 |
in |
42425 | 630 |
(case get_first get_ax (Theory.nodes_of theory) of |
15531 | 631 |
SOME thm => thm |
632 |
| NONE => raise THEORY ("No axiom " ^ quote name, [theory])) |
|
387
69f4356d915d
new datatype theory, supports 'draft theories' and incremental extension:
wenzelm
parents:
309
diff
changeset
|
633 |
end; |
69f4356d915d
new datatype theory, supports 'draft theories' and incremental extension:
wenzelm
parents:
309
diff
changeset
|
634 |
|
776
df8f91c0e57c
improved axioms_of: returns thms as the manual says;
wenzelm
parents:
721
diff
changeset
|
635 |
(*return additional axioms of this theory node*) |
df8f91c0e57c
improved axioms_of: returns thms as the manual says;
wenzelm
parents:
721
diff
changeset
|
636 |
fun axioms_of thy = |
56025 | 637 |
map (fn (name, _) => (name, axiom thy name)) (Theory.axioms_of thy); |
776
df8f91c0e57c
improved axioms_of: returns thms as the manual says;
wenzelm
parents:
721
diff
changeset
|
638 |
|
6089 | 639 |
|
28804
5d3b1df16353
refined notion of derivation, consiting of promises and proof_body;
wenzelm
parents:
28675
diff
changeset
|
640 |
(* tags *) |
6089 | 641 |
|
21646
c07b5b0e8492
thm/prf: separate official name vs. additional tags;
wenzelm
parents:
21576
diff
changeset
|
642 |
val get_tags = #tags o rep_thm; |
6089 | 643 |
|
52788 | 644 |
fun map_tags f (Thm (der, {thy, tags, maxidx, shyps, hyps, tpairs, prop})) = |
645 |
Thm (der, {thy = thy, tags = f tags, maxidx = maxidx, |
|
28321
9f4499bf9384
type thm: fully internal derivation, no longer exported;
wenzelm
parents:
28290
diff
changeset
|
646 |
shyps = shyps, hyps = hyps, tpairs = tpairs, prop = prop}); |
0 | 647 |
|
648 |
||
43795
ca5896a836ba
recovered some runtime sharing from d6b6c74a8bcf, without the global memory bottleneck;
wenzelm
parents:
43761
diff
changeset
|
649 |
(* technical adjustments *) |
ca5896a836ba
recovered some runtime sharing from d6b6c74a8bcf, without the global memory bottleneck;
wenzelm
parents:
43761
diff
changeset
|
650 |
|
52788 | 651 |
fun norm_proof (Thm (der, args as {thy, ...})) = |
652 |
Thm (deriv_rule1 (Proofterm.rew_proof thy) der, args); |
|
23781
ab793a6ddf9f
Added function norm_proof for normalizing the proof term
berghofe
parents:
23657
diff
changeset
|
653 |
|
52788 | 654 |
fun adjust_maxidx_thm i (th as Thm (der, {thy, tags, maxidx, shyps, hyps, tpairs, prop})) = |
20261 | 655 |
if maxidx = i then th |
656 |
else if maxidx < i then |
|
52788 | 657 |
Thm (der, {maxidx = i, thy = thy, tags = tags, shyps = shyps, |
28321
9f4499bf9384
type thm: fully internal derivation, no longer exported;
wenzelm
parents:
28290
diff
changeset
|
658 |
hyps = hyps, tpairs = tpairs, prop = prop}) |
20261 | 659 |
else |
52788 | 660 |
Thm (der, {maxidx = Int.max (maxidx_tpairs tpairs (maxidx_of_term prop), i), thy = thy, |
28321
9f4499bf9384
type thm: fully internal derivation, no longer exported;
wenzelm
parents:
28290
diff
changeset
|
661 |
tags = tags, shyps = shyps, hyps = hyps, tpairs = tpairs, prop = prop}); |
564 | 662 |
|
387
69f4356d915d
new datatype theory, supports 'draft theories' and incremental extension:
wenzelm
parents:
309
diff
changeset
|
663 |
|
2509 | 664 |
|
1529 | 665 |
(*** Meta rules ***) |
0 | 666 |
|
16601
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
667 |
(** primitive rules **) |
0 | 668 |
|
16656 | 669 |
(*The assumption rule A |- A*) |
16601
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
670 |
fun assume raw_ct = |
52788 | 671 |
let val Cterm {thy, t = prop, T, maxidx, sorts} = adjust_maxidx_cterm ~1 raw_ct in |
16601
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
672 |
if T <> propT then |
19230 | 673 |
raise THM ("assume: prop", 0, []) |
16601
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
674 |
else if maxidx <> ~1 then |
19230 | 675 |
raise THM ("assume: variables", maxidx, []) |
52487
48bc24467008
backout dedd7952a62c: static "proofs" value within theory prevents later inferencing with different configuration;
wenzelm
parents:
52470
diff
changeset
|
676 |
else Thm (deriv_rule0 (Proofterm.Hyp prop), |
52788 | 677 |
{thy = thy, |
21646
c07b5b0e8492
thm/prf: separate official name vs. additional tags;
wenzelm
parents:
21576
diff
changeset
|
678 |
tags = [], |
16601
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
679 |
maxidx = ~1, |
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
680 |
shyps = sorts, |
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
681 |
hyps = [prop], |
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
682 |
tpairs = [], |
28321
9f4499bf9384
type thm: fully internal derivation, no longer exported;
wenzelm
parents:
28290
diff
changeset
|
683 |
prop = prop}) |
0 | 684 |
end; |
685 |
||
1220 | 686 |
(*Implication introduction |
3529 | 687 |
[A] |
688 |
: |
|
689 |
B |
|
1220 | 690 |
------- |
691 |
A ==> B |
|
692 |
*) |
|
16601
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
693 |
fun implies_intr |
16679 | 694 |
(ct as Cterm {t = A, T, maxidx = maxidxA, sorts, ...}) |
28321
9f4499bf9384
type thm: fully internal derivation, no longer exported;
wenzelm
parents:
28290
diff
changeset
|
695 |
(th as Thm (der, {maxidx, hyps, shyps, tpairs, prop, ...})) = |
16601
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
696 |
if T <> propT then |
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
697 |
raise THM ("implies_intr: assumptions must have type prop", 0, [th]) |
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
698 |
else |
52487
48bc24467008
backout dedd7952a62c: static "proofs" value within theory prevents later inferencing with different configuration;
wenzelm
parents:
52470
diff
changeset
|
699 |
Thm (deriv_rule1 (Proofterm.implies_intr_proof A) der, |
52788 | 700 |
{thy = merge_thys1 ct th, |
52487
48bc24467008
backout dedd7952a62c: static "proofs" value within theory prevents later inferencing with different configuration;
wenzelm
parents:
52470
diff
changeset
|
701 |
tags = [], |
48bc24467008
backout dedd7952a62c: static "proofs" value within theory prevents later inferencing with different configuration;
wenzelm
parents:
52470
diff
changeset
|
702 |
maxidx = Int.max (maxidxA, maxidx), |
48bc24467008
backout dedd7952a62c: static "proofs" value within theory prevents later inferencing with different configuration;
wenzelm
parents:
52470
diff
changeset
|
703 |
shyps = Sorts.union sorts shyps, |
48bc24467008
backout dedd7952a62c: static "proofs" value within theory prevents later inferencing with different configuration;
wenzelm
parents:
52470
diff
changeset
|
704 |
hyps = remove_hyps A hyps, |
48bc24467008
backout dedd7952a62c: static "proofs" value within theory prevents later inferencing with different configuration;
wenzelm
parents:
52470
diff
changeset
|
705 |
tpairs = tpairs, |
48bc24467008
backout dedd7952a62c: static "proofs" value within theory prevents later inferencing with different configuration;
wenzelm
parents:
52470
diff
changeset
|
706 |
prop = Logic.mk_implies (A, prop)}); |
0 | 707 |
|
1529 | 708 |
|
1220 | 709 |
(*Implication elimination |
710 |
A ==> B A |
|
711 |
------------ |
|
712 |
B |
|
713 |
*) |
|
16601
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
714 |
fun implies_elim thAB thA = |
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
715 |
let |
28321
9f4499bf9384
type thm: fully internal derivation, no longer exported;
wenzelm
parents:
28290
diff
changeset
|
716 |
val Thm (derA, {maxidx = maxA, hyps = hypsA, shyps = shypsA, tpairs = tpairsA, |
9f4499bf9384
type thm: fully internal derivation, no longer exported;
wenzelm
parents:
28290
diff
changeset
|
717 |
prop = propA, ...}) = thA |
9f4499bf9384
type thm: fully internal derivation, no longer exported;
wenzelm
parents:
28290
diff
changeset
|
718 |
and Thm (der, {maxidx, hyps, shyps, tpairs, prop, ...}) = thAB; |
16601
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
719 |
fun err () = raise THM ("implies_elim: major premise", 0, [thAB, thA]); |
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
720 |
in |
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
721 |
case prop of |
56245 | 722 |
Const ("Pure.imp", _) $ A $ B => |
20512 | 723 |
if A aconv propA then |
52487
48bc24467008
backout dedd7952a62c: static "proofs" value within theory prevents later inferencing with different configuration;
wenzelm
parents:
52470
diff
changeset
|
724 |
Thm (deriv_rule2 (curry Proofterm.%%) der derA, |
52788 | 725 |
{thy = merge_thys2 thAB thA, |
21646
c07b5b0e8492
thm/prf: separate official name vs. additional tags;
wenzelm
parents:
21576
diff
changeset
|
726 |
tags = [], |
16601
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
727 |
maxidx = Int.max (maxA, maxidx), |
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
728 |
shyps = Sorts.union shypsA shyps, |
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
729 |
hyps = union_hyps hypsA hyps, |
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
730 |
tpairs = union_tpairs tpairsA tpairs, |
28321
9f4499bf9384
type thm: fully internal derivation, no longer exported;
wenzelm
parents:
28290
diff
changeset
|
731 |
prop = B}) |
16601
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
732 |
else err () |
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
733 |
| _ => err () |
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
734 |
end; |
250 | 735 |
|
1220 | 736 |
(*Forall introduction. The Free or Var x must not be free in the hypotheses. |
16656 | 737 |
[x] |
738 |
: |
|
739 |
A |
|
740 |
------ |
|
741 |
!!x. A |
|
1220 | 742 |
*) |
16601
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
743 |
fun forall_intr |
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
744 |
(ct as Cterm {t = x, T, sorts, ...}) |
28321
9f4499bf9384
type thm: fully internal derivation, no longer exported;
wenzelm
parents:
28290
diff
changeset
|
745 |
(th as Thm (der, {maxidx, shyps, hyps, tpairs, prop, ...})) = |
16601
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
746 |
let |
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
747 |
fun result a = |
52487
48bc24467008
backout dedd7952a62c: static "proofs" value within theory prevents later inferencing with different configuration;
wenzelm
parents:
52470
diff
changeset
|
748 |
Thm (deriv_rule1 (Proofterm.forall_intr_proof x a) der, |
52788 | 749 |
{thy = merge_thys1 ct th, |
21646
c07b5b0e8492
thm/prf: separate official name vs. additional tags;
wenzelm
parents:
21576
diff
changeset
|
750 |
tags = [], |
16601
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
751 |
maxidx = maxidx, |
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
752 |
shyps = Sorts.union sorts shyps, |
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
753 |
hyps = hyps, |
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
754 |
tpairs = tpairs, |
46217
7b19666f0e3d
renamed Term.all to Logic.all_const, in accordance to HOLogic.all_const;
wenzelm
parents:
45443
diff
changeset
|
755 |
prop = Logic.all_const T $ Abs (a, T, abstract_over (x, prop))}); |
21798 | 756 |
fun check_occs a x ts = |
16847
8fc160b12e73
invoke_oracle: do not keep theory value, but theory_ref;
wenzelm
parents:
16725
diff
changeset
|
757 |
if exists (fn t => Logic.occs (x, t)) ts then |
21798 | 758 |
raise THM ("forall_intr: variable " ^ quote a ^ " free in assumptions", 0, [th]) |
16601
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
759 |
else (); |
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
760 |
in |
52788 | 761 |
(case x of |
21798 | 762 |
Free (a, _) => (check_occs a x hyps; check_occs a x (terms_of_tpairs tpairs); result a) |
763 |
| Var ((a, _), _) => (check_occs a x (terms_of_tpairs tpairs); result a) |
|
52788 | 764 |
| _ => raise THM ("forall_intr: not a variable", 0, [th])) |
0 | 765 |
end; |
766 |
||
1220 | 767 |
(*Forall elimination |
16656 | 768 |
!!x. A |
1220 | 769 |
------ |
770 |
A[t/x] |
|
771 |
*) |
|
16601
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
772 |
fun forall_elim |
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
773 |
(ct as Cterm {t, T, maxidx = maxt, sorts, ...}) |
28321
9f4499bf9384
type thm: fully internal derivation, no longer exported;
wenzelm
parents:
28290
diff
changeset
|
774 |
(th as Thm (der, {maxidx, shyps, hyps, tpairs, prop, ...})) = |
16601
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
775 |
(case prop of |
56245 | 776 |
Const ("Pure.all", Type ("fun", [Type ("fun", [qary, _]), _])) $ A => |
16601
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
777 |
if T <> qary then |
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
778 |
raise THM ("forall_elim: type mismatch", 0, [th]) |
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
779 |
else |
52487
48bc24467008
backout dedd7952a62c: static "proofs" value within theory prevents later inferencing with different configuration;
wenzelm
parents:
52470
diff
changeset
|
780 |
Thm (deriv_rule1 (Proofterm.% o rpair (SOME t)) der, |
52788 | 781 |
{thy = merge_thys1 ct th, |
52487
48bc24467008
backout dedd7952a62c: static "proofs" value within theory prevents later inferencing with different configuration;
wenzelm
parents:
52470
diff
changeset
|
782 |
tags = [], |
48bc24467008
backout dedd7952a62c: static "proofs" value within theory prevents later inferencing with different configuration;
wenzelm
parents:
52470
diff
changeset
|
783 |
maxidx = Int.max (maxidx, maxt), |
48bc24467008
backout dedd7952a62c: static "proofs" value within theory prevents later inferencing with different configuration;
wenzelm
parents:
52470
diff
changeset
|
784 |
shyps = Sorts.union sorts shyps, |
48bc24467008
backout dedd7952a62c: static "proofs" value within theory prevents later inferencing with different configuration;
wenzelm
parents:
52470
diff
changeset
|
785 |
hyps = hyps, |
48bc24467008
backout dedd7952a62c: static "proofs" value within theory prevents later inferencing with different configuration;
wenzelm
parents:
52470
diff
changeset
|
786 |
tpairs = tpairs, |
48bc24467008
backout dedd7952a62c: static "proofs" value within theory prevents later inferencing with different configuration;
wenzelm
parents:
52470
diff
changeset
|
787 |
prop = Term.betapply (A, t)}) |
16601
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
788 |
| _ => raise THM ("forall_elim: not quantified", 0, [th])); |
0 | 789 |
|
790 |
||
1220 | 791 |
(* Equality *) |
0 | 792 |
|
16601
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
793 |
(*Reflexivity |
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
794 |
t == t |
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
795 |
*) |
52788 | 796 |
fun reflexive (Cterm {thy, t, T = _, maxidx, sorts}) = |
52487
48bc24467008
backout dedd7952a62c: static "proofs" value within theory prevents later inferencing with different configuration;
wenzelm
parents:
52470
diff
changeset
|
797 |
Thm (deriv_rule0 Proofterm.reflexive, |
52788 | 798 |
{thy = thy, |
21646
c07b5b0e8492
thm/prf: separate official name vs. additional tags;
wenzelm
parents:
21576
diff
changeset
|
799 |
tags = [], |
16601
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
800 |
maxidx = maxidx, |
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
801 |
shyps = sorts, |
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
802 |
hyps = [], |
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
803 |
tpairs = [], |
28321
9f4499bf9384
type thm: fully internal derivation, no longer exported;
wenzelm
parents:
28290
diff
changeset
|
804 |
prop = Logic.mk_equals (t, t)}); |
0 | 805 |
|
16601
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
806 |
(*Symmetry |
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
807 |
t == u |
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
808 |
------ |
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
809 |
u == t |
1220 | 810 |
*) |
52788 | 811 |
fun symmetric (th as Thm (der, {thy, maxidx, shyps, hyps, tpairs, prop, ...})) = |
16601
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
812 |
(case prop of |
56245 | 813 |
(eq as Const ("Pure.eq", _)) $ t $ u => |
52487
48bc24467008
backout dedd7952a62c: static "proofs" value within theory prevents later inferencing with different configuration;
wenzelm
parents:
52470
diff
changeset
|
814 |
Thm (deriv_rule1 Proofterm.symmetric der, |
52788 | 815 |
{thy = thy, |
21646
c07b5b0e8492
thm/prf: separate official name vs. additional tags;
wenzelm
parents:
21576
diff
changeset
|
816 |
tags = [], |
16601
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
817 |
maxidx = maxidx, |
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
818 |
shyps = shyps, |
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
819 |
hyps = hyps, |
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
820 |
tpairs = tpairs, |
28321
9f4499bf9384
type thm: fully internal derivation, no longer exported;
wenzelm
parents:
28290
diff
changeset
|
821 |
prop = eq $ u $ t}) |
16601
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
822 |
| _ => raise THM ("symmetric", 0, [th])); |
0 | 823 |
|
16601
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
824 |
(*Transitivity |
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
825 |
t1 == u u == t2 |
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
826 |
------------------ |
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
827 |
t1 == t2 |
1220 | 828 |
*) |
0 | 829 |
fun transitive th1 th2 = |
16601
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
830 |
let |
28321
9f4499bf9384
type thm: fully internal derivation, no longer exported;
wenzelm
parents:
28290
diff
changeset
|
831 |
val Thm (der1, {maxidx = max1, hyps = hyps1, shyps = shyps1, tpairs = tpairs1, |
9f4499bf9384
type thm: fully internal derivation, no longer exported;
wenzelm
parents:
28290
diff
changeset
|
832 |
prop = prop1, ...}) = th1 |
9f4499bf9384
type thm: fully internal derivation, no longer exported;
wenzelm
parents:
28290
diff
changeset
|
833 |
and Thm (der2, {maxidx = max2, hyps = hyps2, shyps = shyps2, tpairs = tpairs2, |
9f4499bf9384
type thm: fully internal derivation, no longer exported;
wenzelm
parents:
28290
diff
changeset
|
834 |
prop = prop2, ...}) = th2; |
16601
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
835 |
fun err msg = raise THM ("transitive: " ^ msg, 0, [th1, th2]); |
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
836 |
in |
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
837 |
case (prop1, prop2) of |
56245 | 838 |
((eq as Const ("Pure.eq", Type (_, [T, _]))) $ t1 $ u, Const ("Pure.eq", _) $ u' $ t2) => |
16601
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
839 |
if not (u aconv u') then err "middle term" |
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
840 |
else |
52487
48bc24467008
backout dedd7952a62c: static "proofs" value within theory prevents later inferencing with different configuration;
wenzelm
parents:
52470
diff
changeset
|
841 |
Thm (deriv_rule2 (Proofterm.transitive u T) der1 der2, |
52788 | 842 |
{thy = merge_thys2 th1 th2, |
21646
c07b5b0e8492
thm/prf: separate official name vs. additional tags;
wenzelm
parents:
21576
diff
changeset
|
843 |
tags = [], |
16601
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
844 |
maxidx = Int.max (max1, max2), |
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
845 |
shyps = Sorts.union shyps1 shyps2, |
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
846 |
hyps = union_hyps hyps1 hyps2, |
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
847 |
tpairs = union_tpairs tpairs1 tpairs2, |
28321
9f4499bf9384
type thm: fully internal derivation, no longer exported;
wenzelm
parents:
28290
diff
changeset
|
848 |
prop = eq $ t1 $ t2}) |
16601
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
849 |
| _ => err "premises" |
0 | 850 |
end; |
851 |
||
16601
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
852 |
(*Beta-conversion |
16656 | 853 |
(%x. t)(u) == t[u/x] |
16601
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
854 |
fully beta-reduces the term if full = true |
10416
5b33e732e459
- Moved rewriting functions to meta_simplifier.ML
berghofe
parents:
10348
diff
changeset
|
855 |
*) |
52788 | 856 |
fun beta_conversion full (Cterm {thy, t, T = _, maxidx, sorts}) = |
16601
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
857 |
let val t' = |
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
858 |
if full then Envir.beta_norm t |
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
859 |
else |
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
860 |
(case t of Abs (_, _, bodt) $ u => subst_bound (u, bodt) |
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
861 |
| _ => raise THM ("beta_conversion: not a redex", 0, [])); |
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
862 |
in |
52487
48bc24467008
backout dedd7952a62c: static "proofs" value within theory prevents later inferencing with different configuration;
wenzelm
parents:
52470
diff
changeset
|
863 |
Thm (deriv_rule0 Proofterm.reflexive, |
52788 | 864 |
{thy = thy, |
21646
c07b5b0e8492
thm/prf: separate official name vs. additional tags;
wenzelm
parents:
21576
diff
changeset
|
865 |
tags = [], |
16601
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
866 |
maxidx = maxidx, |
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
867 |
shyps = sorts, |
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
868 |
hyps = [], |
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
869 |
tpairs = [], |
28321
9f4499bf9384
type thm: fully internal derivation, no longer exported;
wenzelm
parents:
28290
diff
changeset
|
870 |
prop = Logic.mk_equals (t, t')}) |
10416
5b33e732e459
- Moved rewriting functions to meta_simplifier.ML
berghofe
parents:
10348
diff
changeset
|
871 |
end; |
5b33e732e459
- Moved rewriting functions to meta_simplifier.ML
berghofe
parents:
10348
diff
changeset
|
872 |
|
52788 | 873 |
fun eta_conversion (Cterm {thy, t, T = _, maxidx, sorts}) = |
52487
48bc24467008
backout dedd7952a62c: static "proofs" value within theory prevents later inferencing with different configuration;
wenzelm
parents:
52470
diff
changeset
|
874 |
Thm (deriv_rule0 Proofterm.reflexive, |
52788 | 875 |
{thy = thy, |
21646
c07b5b0e8492
thm/prf: separate official name vs. additional tags;
wenzelm
parents:
21576
diff
changeset
|
876 |
tags = [], |
16601
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
877 |
maxidx = maxidx, |
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
878 |
shyps = sorts, |
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
879 |
hyps = [], |
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
880 |
tpairs = [], |
28321
9f4499bf9384
type thm: fully internal derivation, no longer exported;
wenzelm
parents:
28290
diff
changeset
|
881 |
prop = Logic.mk_equals (t, Envir.eta_contract t)}); |
0 | 882 |
|
52788 | 883 |
fun eta_long_conversion (Cterm {thy, t, T = _, maxidx, sorts}) = |
52487
48bc24467008
backout dedd7952a62c: static "proofs" value within theory prevents later inferencing with different configuration;
wenzelm
parents:
52470
diff
changeset
|
884 |
Thm (deriv_rule0 Proofterm.reflexive, |
52788 | 885 |
{thy = thy, |
23493 | 886 |
tags = [], |
887 |
maxidx = maxidx, |
|
888 |
shyps = sorts, |
|
889 |
hyps = [], |
|
890 |
tpairs = [], |
|
52131 | 891 |
prop = Logic.mk_equals (t, Envir.eta_long [] t)}); |
23493 | 892 |
|
0 | 893 |
(*The abstraction rule. The Free or Var x must not be free in the hypotheses. |
894 |
The bound variable will be named "a" (since x will be something like x320) |
|
16601
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
895 |
t == u |
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
896 |
-------------- |
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
897 |
%x. t == %x. u |
1220 | 898 |
*) |
16601
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
899 |
fun abstract_rule a |
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
900 |
(Cterm {t = x, T, sorts, ...}) |
52788 | 901 |
(th as Thm (der, {thy, maxidx, hyps, shyps, tpairs, prop, ...})) = |
16601
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
902 |
let |
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
903 |
val (t, u) = Logic.dest_equals prop |
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
904 |
handle TERM _ => raise THM ("abstract_rule: premise not an equality", 0, [th]); |
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
905 |
val result = |
52487
48bc24467008
backout dedd7952a62c: static "proofs" value within theory prevents later inferencing with different configuration;
wenzelm
parents:
52470
diff
changeset
|
906 |
Thm (deriv_rule1 (Proofterm.abstract_rule x a) der, |
52788 | 907 |
{thy = thy, |
21646
c07b5b0e8492
thm/prf: separate official name vs. additional tags;
wenzelm
parents:
21576
diff
changeset
|
908 |
tags = [], |
16601
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
909 |
maxidx = maxidx, |
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
910 |
shyps = Sorts.union sorts shyps, |
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
911 |
hyps = hyps, |
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
912 |
tpairs = tpairs, |
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
913 |
prop = Logic.mk_equals |
28321
9f4499bf9384
type thm: fully internal derivation, no longer exported;
wenzelm
parents:
28290
diff
changeset
|
914 |
(Abs (a, T, abstract_over (x, t)), Abs (a, T, abstract_over (x, u)))}); |
21798 | 915 |
fun check_occs a x ts = |
16847
8fc160b12e73
invoke_oracle: do not keep theory value, but theory_ref;
wenzelm
parents:
16725
diff
changeset
|
916 |
if exists (fn t => Logic.occs (x, t)) ts then |
21798 | 917 |
raise THM ("abstract_rule: variable " ^ quote a ^ " free in assumptions", 0, [th]) |
16601
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
918 |
else (); |
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
919 |
in |
52788 | 920 |
(case x of |
21798 | 921 |
Free (a, _) => (check_occs a x hyps; check_occs a x (terms_of_tpairs tpairs); result) |
922 |
| Var ((a, _), _) => (check_occs a x (terms_of_tpairs tpairs); result) |
|
52788 | 923 |
| _ => raise THM ("abstract_rule: not a variable", 0, [th])) |
0 | 924 |
end; |
925 |
||
926 |
(*The combination rule |
|
3529 | 927 |
f == g t == u |
928 |
-------------- |
|
16601
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
929 |
f t == g u |
1220 | 930 |
*) |
0 | 931 |
fun combination th1 th2 = |
16601
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
932 |
let |
28321
9f4499bf9384
type thm: fully internal derivation, no longer exported;
wenzelm
parents:
28290
diff
changeset
|
933 |
val Thm (der1, {maxidx = max1, shyps = shyps1, hyps = hyps1, tpairs = tpairs1, |
9f4499bf9384
type thm: fully internal derivation, no longer exported;
wenzelm
parents:
28290
diff
changeset
|
934 |
prop = prop1, ...}) = th1 |
9f4499bf9384
type thm: fully internal derivation, no longer exported;
wenzelm
parents:
28290
diff
changeset
|
935 |
and Thm (der2, {maxidx = max2, shyps = shyps2, hyps = hyps2, tpairs = tpairs2, |
9f4499bf9384
type thm: fully internal derivation, no longer exported;
wenzelm
parents:
28290
diff
changeset
|
936 |
prop = prop2, ...}) = th2; |
16601
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
937 |
fun chktypes fT tT = |
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
938 |
(case fT of |
32784 | 939 |
Type ("fun", [T1, _]) => |
16601
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
940 |
if T1 <> tT then |
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
941 |
raise THM ("combination: types", 0, [th1, th2]) |
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
942 |
else () |
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
943 |
| _ => raise THM ("combination: not function type", 0, [th1, th2])); |
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
944 |
in |
52788 | 945 |
(case (prop1, prop2) of |
56245 | 946 |
(Const ("Pure.eq", Type ("fun", [fT, _])) $ f $ g, |
947 |
Const ("Pure.eq", Type ("fun", [tT, _])) $ t $ u) => |
|
16601
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
948 |
(chktypes fT tT; |
52487
48bc24467008
backout dedd7952a62c: static "proofs" value within theory prevents later inferencing with different configuration;
wenzelm
parents:
52470
diff
changeset
|
949 |
Thm (deriv_rule2 (Proofterm.combination f g t u fT) der1 der2, |
52788 | 950 |
{thy = merge_thys2 th1 th2, |
21646
c07b5b0e8492
thm/prf: separate official name vs. additional tags;
wenzelm
parents:
21576
diff
changeset
|
951 |
tags = [], |
16601
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
952 |
maxidx = Int.max (max1, max2), |
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
953 |
shyps = Sorts.union shyps1 shyps2, |
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
954 |
hyps = union_hyps hyps1 hyps2, |
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
955 |
tpairs = union_tpairs tpairs1 tpairs2, |
28321
9f4499bf9384
type thm: fully internal derivation, no longer exported;
wenzelm
parents:
28290
diff
changeset
|
956 |
prop = Logic.mk_equals (f $ t, g $ u)})) |
52788 | 957 |
| _ => raise THM ("combination: premises", 0, [th1, th2])) |
0 | 958 |
end; |
959 |
||
16601
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
960 |
(*Equality introduction |
3529 | 961 |
A ==> B B ==> A |
962 |
---------------- |
|
963 |
A == B |
|
1220 | 964 |
*) |
0 | 965 |
fun equal_intr th1 th2 = |
16601
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
966 |
let |
28321
9f4499bf9384
type thm: fully internal derivation, no longer exported;
wenzelm
parents:
28290
diff
changeset
|
967 |
val Thm (der1, {maxidx = max1, shyps = shyps1, hyps = hyps1, tpairs = tpairs1, |
9f4499bf9384
type thm: fully internal derivation, no longer exported;
wenzelm
parents:
28290
diff
changeset
|
968 |
prop = prop1, ...}) = th1 |
9f4499bf9384
type thm: fully internal derivation, no longer exported;
wenzelm
parents:
28290
diff
changeset
|
969 |
and Thm (der2, {maxidx = max2, shyps = shyps2, hyps = hyps2, tpairs = tpairs2, |
9f4499bf9384
type thm: fully internal derivation, no longer exported;
wenzelm
parents:
28290
diff
changeset
|
970 |
prop = prop2, ...}) = th2; |
16601
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
971 |
fun err msg = raise THM ("equal_intr: " ^ msg, 0, [th1, th2]); |
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
972 |
in |
52788 | 973 |
(case (prop1, prop2) of |
56245 | 974 |
(Const("Pure.imp", _) $ A $ B, Const("Pure.imp", _) $ B' $ A') => |
16601
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
975 |
if A aconv A' andalso B aconv B' then |
52487
48bc24467008
backout dedd7952a62c: static "proofs" value within theory prevents later inferencing with different configuration;
wenzelm
parents:
52470
diff
changeset
|
976 |
Thm (deriv_rule2 (Proofterm.equal_intr A B) der1 der2, |
52788 | 977 |
{thy = merge_thys2 th1 th2, |
21646
c07b5b0e8492
thm/prf: separate official name vs. additional tags;
wenzelm
parents:
21576
diff
changeset
|
978 |
tags = [], |
16601
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
979 |
maxidx = Int.max (max1, max2), |
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
980 |
shyps = Sorts.union shyps1 shyps2, |
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
981 |
hyps = union_hyps hyps1 hyps2, |
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
982 |
tpairs = union_tpairs tpairs1 tpairs2, |
28321
9f4499bf9384
type thm: fully internal derivation, no longer exported;
wenzelm
parents:
28290
diff
changeset
|
983 |
prop = Logic.mk_equals (A, B)}) |
16601
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
984 |
else err "not equal" |
52788 | 985 |
| _ => err "premises") |
1529 | 986 |
end; |
987 |
||
988 |
(*The equal propositions rule |
|
3529 | 989 |
A == B A |
1529 | 990 |
--------- |
991 |
B |
|
992 |
*) |
|
993 |
fun equal_elim th1 th2 = |
|
16601
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
994 |
let |
28321
9f4499bf9384
type thm: fully internal derivation, no longer exported;
wenzelm
parents:
28290
diff
changeset
|
995 |
val Thm (der1, {maxidx = max1, shyps = shyps1, hyps = hyps1, |
9f4499bf9384
type thm: fully internal derivation, no longer exported;
wenzelm
parents:
28290
diff
changeset
|
996 |
tpairs = tpairs1, prop = prop1, ...}) = th1 |
9f4499bf9384
type thm: fully internal derivation, no longer exported;
wenzelm
parents:
28290
diff
changeset
|
997 |
and Thm (der2, {maxidx = max2, shyps = shyps2, hyps = hyps2, |
9f4499bf9384
type thm: fully internal derivation, no longer exported;
wenzelm
parents:
28290
diff
changeset
|
998 |
tpairs = tpairs2, prop = prop2, ...}) = th2; |
16601
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
999 |
fun err msg = raise THM ("equal_elim: " ^ msg, 0, [th1, th2]); |
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
1000 |
in |
52788 | 1001 |
(case prop1 of |
56245 | 1002 |
Const ("Pure.eq", _) $ A $ B => |
16601
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
1003 |
if prop2 aconv A then |
52487
48bc24467008
backout dedd7952a62c: static "proofs" value within theory prevents later inferencing with different configuration;
wenzelm
parents:
52470
diff
changeset
|
1004 |
Thm (deriv_rule2 (Proofterm.equal_elim A B) der1 der2, |
52788 | 1005 |
{thy = merge_thys2 th1 th2, |
21646
c07b5b0e8492
thm/prf: separate official name vs. additional tags;
wenzelm
parents:
21576
diff
changeset
|
1006 |
tags = [], |
16601
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
1007 |
maxidx = Int.max (max1, max2), |
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
1008 |
shyps = Sorts.union shyps1 shyps2, |
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
1009 |
hyps = union_hyps hyps1 hyps2, |
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
1010 |
tpairs = union_tpairs tpairs1 tpairs2, |
28321
9f4499bf9384
type thm: fully internal derivation, no longer exported;
wenzelm
parents:
28290
diff
changeset
|
1011 |
prop = B}) |
16601
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
1012 |
else err "not equal" |
52789 | 1013 |
| _ => err "major premise") |
1529 | 1014 |
end; |
0 | 1015 |
|
1220 | 1016 |
|
1017 |
||
0 | 1018 |
(**** Derived rules ****) |
1019 |
||
16601
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
1020 |
(*Smash unifies the list of term pairs leaving no flex-flex pairs. |
24143
90a9a6fe0d01
replaced Theory.self_ref by Theory.check_thy, which now produces a checked ref;
wenzelm
parents:
23781
diff
changeset
|
1021 |
Instantiates the theorem and deletes trivial tpairs. Resulting |
90a9a6fe0d01
replaced Theory.self_ref by Theory.check_thy, which now produces a checked ref;
wenzelm
parents:
23781
diff
changeset
|
1022 |
sequence may contain multiple elements if the tpairs are not all |
90a9a6fe0d01
replaced Theory.self_ref by Theory.check_thy, which now produces a checked ref;
wenzelm
parents:
23781
diff
changeset
|
1023 |
flex-flex.*) |
58950
d07464875dd4
optional proof context for unify operations, for the sake of proper local options;
wenzelm
parents:
58946
diff
changeset
|
1024 |
fun flexflex_rule opt_ctxt (th as Thm (der, {thy, maxidx, shyps, hyps, tpairs, prop, ...})) = |
d07464875dd4
optional proof context for unify operations, for the sake of proper local options;
wenzelm
parents:
58946
diff
changeset
|
1025 |
Unify.smash_unifiers (make_context opt_ctxt thy) tpairs (Envir.empty maxidx) |
52788 | 1026 |
|> Seq.map (fn env => |
1027 |
if Envir.is_empty env then th |
|
1028 |
else |
|
1029 |
let |
|
59058
a78612c67ec0
renamed "pairself" to "apply2", in accordance to @{apply 2};
wenzelm
parents:
58950
diff
changeset
|
1030 |
val tpairs' = tpairs |> map (apply2 (Envir.norm_term env)) |
52788 | 1031 |
(*remove trivial tpairs, of the form t==t*) |
1032 |
|> filter_out (op aconv); |
|
1033 |
val der' = deriv_rule1 (Proofterm.norm_proof' env) der; |
|
1034 |
val prop' = Envir.norm_term env prop; |
|
1035 |
val maxidx = maxidx_tpairs tpairs' (maxidx_of_term prop'); |
|
1036 |
val shyps = Envir.insert_sorts env shyps; |
|
1037 |
in |
|
1038 |
Thm (der', {thy = thy, tags = [], maxidx = maxidx, |
|
1039 |
shyps = shyps, hyps = hyps, tpairs = tpairs', prop = prop'}) |
|
1040 |
end); |
|
16601
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
1041 |
|
0 | 1042 |
|
19910 | 1043 |
(*Generalization of fixed variables |
1044 |
A |
|
1045 |
-------------------- |
|
1046 |
A[?'a/'a, ?x/x, ...] |
|
1047 |
*) |
|
1048 |
||
1049 |
fun generalize ([], []) _ th = th |
|
1050 |
| generalize (tfrees, frees) idx th = |
|
1051 |
let |
|
52788 | 1052 |
val Thm (der, {thy, maxidx, shyps, hyps, tpairs, prop, ...}) = th; |
19910 | 1053 |
val _ = idx <= maxidx andalso raise THM ("generalize: bad index", idx, [th]); |
1054 |
||
33697 | 1055 |
val bad_type = |
1056 |
if null tfrees then K false |
|
1057 |
else Term.exists_subtype (fn TFree (a, _) => member (op =) tfrees a | _ => false); |
|
19910 | 1058 |
fun bad_term (Free (x, T)) = bad_type T orelse member (op =) frees x |
1059 |
| bad_term (Var (_, T)) = bad_type T |
|
1060 |
| bad_term (Const (_, T)) = bad_type T |
|
1061 |
| bad_term (Abs (_, T, t)) = bad_type T orelse bad_term t |
|
1062 |
| bad_term (t $ u) = bad_term t orelse bad_term u |
|
1063 |
| bad_term (Bound _) = false; |
|
1064 |
val _ = exists bad_term hyps andalso |
|
1065 |
raise THM ("generalize: variable free in assumptions", 0, [th]); |
|
1066 |
||
31977 | 1067 |
val gen = Term_Subst.generalize (tfrees, frees) idx; |
19910 | 1068 |
val prop' = gen prop; |
59058
a78612c67ec0
renamed "pairself" to "apply2", in accordance to @{apply 2};
wenzelm
parents:
58950
diff
changeset
|
1069 |
val tpairs' = map (apply2 gen) tpairs; |
19910 | 1070 |
val maxidx' = maxidx_tpairs tpairs' (maxidx_of_term prop'); |
1071 |
in |
|
52487
48bc24467008
backout dedd7952a62c: static "proofs" value within theory prevents later inferencing with different configuration;
wenzelm
parents:
52470
diff
changeset
|
1072 |
Thm (deriv_rule1 (Proofterm.generalize (tfrees, frees) idx) der, |
52788 | 1073 |
{thy = thy, |
21646
c07b5b0e8492
thm/prf: separate official name vs. additional tags;
wenzelm
parents:
21576
diff
changeset
|
1074 |
tags = [], |
19910 | 1075 |
maxidx = maxidx', |
1076 |
shyps = shyps, |
|
1077 |
hyps = hyps, |
|
1078 |
tpairs = tpairs', |
|
28321
9f4499bf9384
type thm: fully internal derivation, no longer exported;
wenzelm
parents:
28290
diff
changeset
|
1079 |
prop = prop'}) |
19910 | 1080 |
end; |
1081 |
||
1082 |
||
22584 | 1083 |
(*Instantiation of schematic variables |
16656 | 1084 |
A |
1085 |
-------------------- |
|
1086 |
A[t1/v1, ..., tn/vn] |
|
1220 | 1087 |
*) |
0 | 1088 |
|
6928 | 1089 |
local |
1090 |
||
26939
1035c89b4c02
moved global pretty/string_of functions from Sign to Syntax;
wenzelm
parents:
26832
diff
changeset
|
1091 |
fun pretty_typing thy t T = Pretty.block |
1035c89b4c02
moved global pretty/string_of functions from Sign to Syntax;
wenzelm
parents:
26832
diff
changeset
|
1092 |
[Syntax.pretty_term_global thy t, Pretty.str " ::", Pretty.brk 1, Syntax.pretty_typ_global thy T]; |
15797 | 1093 |
|
52788 | 1094 |
fun add_inst (ct, cu) (thy, sorts) = |
6928 | 1095 |
let |
26939
1035c89b4c02
moved global pretty/string_of functions from Sign to Syntax;
wenzelm
parents:
26832
diff
changeset
|
1096 |
val Cterm {t = t, T = T, ...} = ct; |
1035c89b4c02
moved global pretty/string_of functions from Sign to Syntax;
wenzelm
parents:
26832
diff
changeset
|
1097 |
val Cterm {t = u, T = U, sorts = sorts_u, maxidx = maxidx_u, ...} = cu; |
52788 | 1098 |
val thy' = Theory.merge (thy, merge_thys0 ct cu); |
16884
1678a796b6b2
tuned instantiate (avoid subst_atomic, subst_atomic_types);
wenzelm
parents:
16847
diff
changeset
|
1099 |
val sorts' = Sorts.union sorts_u sorts; |
3967
edd5ff9371f8
sg_ref: automatic adjustment of thms of draft theories;
wenzelm
parents:
3895
diff
changeset
|
1100 |
in |
16884
1678a796b6b2
tuned instantiate (avoid subst_atomic, subst_atomic_types);
wenzelm
parents:
16847
diff
changeset
|
1101 |
(case t of Var v => |
52788 | 1102 |
if T = U then ((v, (u, maxidx_u)), (thy', sorts')) |
16884
1678a796b6b2
tuned instantiate (avoid subst_atomic, subst_atomic_types);
wenzelm
parents:
16847
diff
changeset
|
1103 |
else raise TYPE (Pretty.string_of (Pretty.block |
1678a796b6b2
tuned instantiate (avoid subst_atomic, subst_atomic_types);
wenzelm
parents:
16847
diff
changeset
|
1104 |
[Pretty.str "instantiate: type conflict", |
52788 | 1105 |
Pretty.fbrk, pretty_typing thy' t T, |
1106 |
Pretty.fbrk, pretty_typing thy' u U]), [T, U], [t, u]) |
|
16884
1678a796b6b2
tuned instantiate (avoid subst_atomic, subst_atomic_types);
wenzelm
parents:
16847
diff
changeset
|
1107 |
| _ => raise TYPE (Pretty.string_of (Pretty.block |
1678a796b6b2
tuned instantiate (avoid subst_atomic, subst_atomic_types);
wenzelm
parents:
16847
diff
changeset
|
1108 |
[Pretty.str "instantiate: not a variable", |
52788 | 1109 |
Pretty.fbrk, Syntax.pretty_term_global thy' t]), [], [t])) |
0 | 1110 |
end; |
1111 |
||
52788 | 1112 |
fun add_instT (cT, cU) (thy, sorts) = |
16656 | 1113 |
let |
52788 | 1114 |
val Ctyp {T, thy = thy1, ...} = cT |
1115 |
and Ctyp {T = U, thy = thy2, sorts = sorts_U, maxidx = maxidx_U, ...} = cU; |
|
1116 |
val thy' = Theory.merge (thy, Theory.merge (thy1, thy2)); |
|
16884
1678a796b6b2
tuned instantiate (avoid subst_atomic, subst_atomic_types);
wenzelm
parents:
16847
diff
changeset
|
1117 |
val sorts' = Sorts.union sorts_U sorts; |
16656 | 1118 |
in |
16884
1678a796b6b2
tuned instantiate (avoid subst_atomic, subst_atomic_types);
wenzelm
parents:
16847
diff
changeset
|
1119 |
(case T of TVar (v as (_, S)) => |
52788 | 1120 |
if Sign.of_sort thy' (U, S) then ((v, (U, maxidx_U)), (thy', sorts')) |
26939
1035c89b4c02
moved global pretty/string_of functions from Sign to Syntax;
wenzelm
parents:
26832
diff
changeset
|
1121 |
else raise TYPE ("Type not of sort " ^ Syntax.string_of_sort_global thy' S, [U], []) |
16656 | 1122 |
| _ => raise TYPE (Pretty.string_of (Pretty.block |
15797 | 1123 |
[Pretty.str "instantiate: not a type variable", |
26939
1035c89b4c02
moved global pretty/string_of functions from Sign to Syntax;
wenzelm
parents:
26832
diff
changeset
|
1124 |
Pretty.fbrk, Syntax.pretty_typ_global thy' T]), [T], [])) |
16656 | 1125 |
end; |
0 | 1126 |
|
6928 | 1127 |
in |
1128 |
||
16601
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
1129 |
(*Left-to-right replacements: ctpairs = [..., (vi, ti), ...]. |
0 | 1130 |
Instantiates distinct Vars by terms of same type. |
16601
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
1131 |
Does NOT normalize the resulting theorem!*) |
1529 | 1132 |
fun instantiate ([], []) th = th |
16884
1678a796b6b2
tuned instantiate (avoid subst_atomic, subst_atomic_types);
wenzelm
parents:
16847
diff
changeset
|
1133 |
| instantiate (instT, inst) th = |
16656 | 1134 |
let |
52788 | 1135 |
val Thm (der, {thy, hyps, shyps, tpairs, prop, ...}) = th; |
1136 |
val (inst', (instT', (thy', shyps'))) = |
|
1137 |
(thy, shyps) |> fold_map add_inst inst ||> fold_map add_instT instT; |
|
31977 | 1138 |
val subst = Term_Subst.instantiate_maxidx (instT', inst'); |
20512 | 1139 |
val (prop', maxidx1) = subst prop ~1; |
1140 |
val (tpairs', maxidx') = |
|
1141 |
fold_map (fn (t, u) => fn i => subst t i ||>> subst u) tpairs maxidx1; |
|
16656 | 1142 |
in |
52487
48bc24467008
backout dedd7952a62c: static "proofs" value within theory prevents later inferencing with different configuration;
wenzelm
parents:
52470
diff
changeset
|
1143 |
Thm (deriv_rule1 |
37309 | 1144 |
(fn d => Proofterm.instantiate (map (apsnd #1) instT', map (apsnd #1) inst') d) der, |
52788 | 1145 |
{thy = thy', |
21646
c07b5b0e8492
thm/prf: separate official name vs. additional tags;
wenzelm
parents:
21576
diff
changeset
|
1146 |
tags = [], |
20545
4c1068697159
instantiate: omit has_duplicates check, which is irrelevant for soundness;
wenzelm
parents:
20512
diff
changeset
|
1147 |
maxidx = maxidx', |
4c1068697159
instantiate: omit has_duplicates check, which is irrelevant for soundness;
wenzelm
parents:
20512
diff
changeset
|
1148 |
shyps = shyps', |
4c1068697159
instantiate: omit has_duplicates check, which is irrelevant for soundness;
wenzelm
parents:
20512
diff
changeset
|
1149 |
hyps = hyps, |
4c1068697159
instantiate: omit has_duplicates check, which is irrelevant for soundness;
wenzelm
parents:
20512
diff
changeset
|
1150 |
tpairs = tpairs', |
28321
9f4499bf9384
type thm: fully internal derivation, no longer exported;
wenzelm
parents:
28290
diff
changeset
|
1151 |
prop = prop'}) |
16656 | 1152 |
end |
1153 |
handle TYPE (msg, _, _) => raise THM (msg, 0, [th]); |
|
6928 | 1154 |
|
22584 | 1155 |
fun instantiate_cterm ([], []) ct = ct |
1156 |
| instantiate_cterm (instT, inst) ct = |
|
1157 |
let |
|
52788 | 1158 |
val Cterm {thy, t, T, sorts, ...} = ct; |
1159 |
val (inst', (instT', (thy', sorts'))) = |
|
1160 |
(thy, sorts) |> fold_map add_inst inst ||> fold_map add_instT instT; |
|
31977 | 1161 |
val subst = Term_Subst.instantiate_maxidx (instT', inst'); |
1162 |
val substT = Term_Subst.instantiateT_maxidx instT'; |
|
22584 | 1163 |
val (t', maxidx1) = subst t ~1; |
1164 |
val (T', maxidx') = substT T maxidx1; |
|
52788 | 1165 |
in Cterm {thy = thy', t = t', T = T', sorts = sorts', maxidx = maxidx'} end |
22584 | 1166 |
handle TYPE (msg, _, _) => raise CTERM (msg, [ct]); |
1167 |
||
6928 | 1168 |
end; |
1169 |
||
0 | 1170 |
|
16601
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
1171 |
(*The trivial implication A ==> A, justified by assume and forall rules. |
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
1172 |
A can contain Vars, not so for assume!*) |
52788 | 1173 |
fun trivial (Cterm {thy, t = A, T, maxidx, sorts}) = |
16601
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
1174 |
if T <> propT then |
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
1175 |
raise THM ("trivial: the term must have type prop", 0, []) |
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
1176 |
else |
52487
48bc24467008
backout dedd7952a62c: static "proofs" value within theory prevents later inferencing with different configuration;
wenzelm
parents:
52470
diff
changeset
|
1177 |
Thm (deriv_rule0 (Proofterm.AbsP ("H", NONE, Proofterm.PBound 0)), |
52788 | 1178 |
{thy = thy, |
21646
c07b5b0e8492
thm/prf: separate official name vs. additional tags;
wenzelm
parents:
21576
diff
changeset
|
1179 |
tags = [], |
16601
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
1180 |
maxidx = maxidx, |
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
1181 |
shyps = sorts, |
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
1182 |
hyps = [], |
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
1183 |
tpairs = [], |
28321
9f4499bf9384
type thm: fully internal derivation, no longer exported;
wenzelm
parents:
28290
diff
changeset
|
1184 |
prop = Logic.mk_implies (A, A)}); |
0 | 1185 |
|
31944 | 1186 |
(*Axiom-scheme reflecting signature contents |
1187 |
T :: c |
|
1188 |
------------------- |
|
1189 |
OFCLASS(T, c_class) |
|
1190 |
*) |
|
1191 |
fun of_class (cT, raw_c) = |
|
24143
90a9a6fe0d01
replaced Theory.self_ref by Theory.check_thy, which now produces a checked ref;
wenzelm
parents:
23781
diff
changeset
|
1192 |
let |
52788 | 1193 |
val Ctyp {thy, T, ...} = cT; |
31903 | 1194 |
val c = Sign.certify_class thy raw_c; |
59621
291934bac95e
Thm.cterm_of and Thm.ctyp_of operate on local context;
wenzelm
parents:
59591
diff
changeset
|
1195 |
val Cterm {t = prop, maxidx, sorts, ...} = global_cterm_of thy (Logic.mk_of_class (T, c)); |
399
86cc2b98f9e0
added class_triv: theory -> class -> thm (for axclasses);
wenzelm
parents:
387
diff
changeset
|
1196 |
in |
31944 | 1197 |
if Sign.of_sort thy (T, [c]) then |
52487
48bc24467008
backout dedd7952a62c: static "proofs" value within theory prevents later inferencing with different configuration;
wenzelm
parents:
52470
diff
changeset
|
1198 |
Thm (deriv_rule0 (Proofterm.OfClass (T, c)), |
52788 | 1199 |
{thy = thy, |
31944 | 1200 |
tags = [], |
1201 |
maxidx = maxidx, |
|
1202 |
shyps = sorts, |
|
1203 |
hyps = [], |
|
1204 |
tpairs = [], |
|
1205 |
prop = prop}) |
|
1206 |
else raise THM ("of_class: type not of class " ^ Syntax.string_of_sort_global thy [c], 0, []) |
|
399
86cc2b98f9e0
added class_triv: theory -> class -> thm (for axclasses);
wenzelm
parents:
387
diff
changeset
|
1207 |
end; |
86cc2b98f9e0
added class_triv: theory -> class -> thm (for axclasses);
wenzelm
parents:
387
diff
changeset
|
1208 |
|
36614
b6c031ad3690
minor tuning of Thm.strip_shyps -- no longer pervasive;
wenzelm
parents:
36613
diff
changeset
|
1209 |
(*Remove extra sorts that are witnessed by type signature information*) |
b6c031ad3690
minor tuning of Thm.strip_shyps -- no longer pervasive;
wenzelm
parents:
36613
diff
changeset
|
1210 |
fun strip_shyps (thm as Thm (_, {shyps = [], ...})) = thm |
52788 | 1211 |
| strip_shyps (thm as Thm (der, {thy, tags, maxidx, shyps, hyps, tpairs, prop})) = |
36614
b6c031ad3690
minor tuning of Thm.strip_shyps -- no longer pervasive;
wenzelm
parents:
36613
diff
changeset
|
1212 |
let |
36621
2fd4e2c76636
proof terms for strip_shyps, based on the version by krauss/schropp with some notable differences:
wenzelm
parents:
36619
diff
changeset
|
1213 |
val algebra = Sign.classes_of thy; |
2fd4e2c76636
proof terms for strip_shyps, based on the version by krauss/schropp with some notable differences:
wenzelm
parents:
36619
diff
changeset
|
1214 |
|
2fd4e2c76636
proof terms for strip_shyps, based on the version by krauss/schropp with some notable differences:
wenzelm
parents:
36619
diff
changeset
|
1215 |
val present = (fold_terms o fold_types o fold_atyps_sorts) (insert (eq_fst op =)) thm []; |
36614
b6c031ad3690
minor tuning of Thm.strip_shyps -- no longer pervasive;
wenzelm
parents:
36613
diff
changeset
|
1216 |
val extra = fold (Sorts.remove_sort o #2) present shyps; |
b6c031ad3690
minor tuning of Thm.strip_shyps -- no longer pervasive;
wenzelm
parents:
36613
diff
changeset
|
1217 |
val witnessed = Sign.witness_sorts thy present extra; |
b6c031ad3690
minor tuning of Thm.strip_shyps -- no longer pervasive;
wenzelm
parents:
36613
diff
changeset
|
1218 |
val extra' = fold (Sorts.remove_sort o #2) witnessed extra |
36621
2fd4e2c76636
proof terms for strip_shyps, based on the version by krauss/schropp with some notable differences:
wenzelm
parents:
36619
diff
changeset
|
1219 |
|> Sorts.minimal_sorts algebra; |
36614
b6c031ad3690
minor tuning of Thm.strip_shyps -- no longer pervasive;
wenzelm
parents:
36613
diff
changeset
|
1220 |
val shyps' = fold (Sorts.insert_sort o #2) present extra'; |
b6c031ad3690
minor tuning of Thm.strip_shyps -- no longer pervasive;
wenzelm
parents:
36613
diff
changeset
|
1221 |
in |
37309 | 1222 |
Thm (deriv_rule_unconditional |
1223 |
(Proofterm.strip_shyps_proof algebra present witnessed extra') der, |
|
52788 | 1224 |
{thy = thy, tags = tags, maxidx = maxidx, |
36614
b6c031ad3690
minor tuning of Thm.strip_shyps -- no longer pervasive;
wenzelm
parents:
36613
diff
changeset
|
1225 |
shyps = shyps', hyps = hyps, tpairs = tpairs, prop = prop}) |
b6c031ad3690
minor tuning of Thm.strip_shyps -- no longer pervasive;
wenzelm
parents:
36613
diff
changeset
|
1226 |
end; |
b6c031ad3690
minor tuning of Thm.strip_shyps -- no longer pervasive;
wenzelm
parents:
36613
diff
changeset
|
1227 |
|
36769
b6b88bf695b3
Thm.unconstrainT based on Logic.unconstrainT -- no proofterm yet;
wenzelm
parents:
36768
diff
changeset
|
1228 |
(*Internalize sort constraints of type variables*) |
36883
4ed0d72def50
added Proofterm.unconstrain_thm_proof for Thm.unconstrainT -- loosely based on the version by krauss/schropp;
wenzelm
parents:
36882
diff
changeset
|
1229 |
fun unconstrainT (thm as Thm (der, args)) = |
19505 | 1230 |
let |
36883
4ed0d72def50
added Proofterm.unconstrain_thm_proof for Thm.unconstrainT -- loosely based on the version by krauss/schropp;
wenzelm
parents:
36882
diff
changeset
|
1231 |
val Deriv {promises, body} = der; |
52788 | 1232 |
val {thy, shyps, hyps, tpairs, prop, ...} = args; |
36883
4ed0d72def50
added Proofterm.unconstrain_thm_proof for Thm.unconstrainT -- loosely based on the version by krauss/schropp;
wenzelm
parents:
36882
diff
changeset
|
1233 |
|
36769
b6b88bf695b3
Thm.unconstrainT based on Logic.unconstrainT -- no proofterm yet;
wenzelm
parents:
36768
diff
changeset
|
1234 |
fun err msg = raise THM ("unconstrainT: " ^ msg, 0, [thm]); |
b6b88bf695b3
Thm.unconstrainT based on Logic.unconstrainT -- no proofterm yet;
wenzelm
parents:
36768
diff
changeset
|
1235 |
val _ = null hyps orelse err "illegal hyps"; |
b6b88bf695b3
Thm.unconstrainT based on Logic.unconstrainT -- no proofterm yet;
wenzelm
parents:
36768
diff
changeset
|
1236 |
val _ = null tpairs orelse err "unsolved flex-flex constraints"; |
b6b88bf695b3
Thm.unconstrainT based on Logic.unconstrainT -- no proofterm yet;
wenzelm
parents:
36768
diff
changeset
|
1237 |
val tfrees = rev (Term.add_tfree_names prop []); |
b6b88bf695b3
Thm.unconstrainT based on Logic.unconstrainT -- no proofterm yet;
wenzelm
parents:
36768
diff
changeset
|
1238 |
val _ = null tfrees orelse err ("illegal free type variables " ^ commas_quote tfrees); |
b6b88bf695b3
Thm.unconstrainT based on Logic.unconstrainT -- no proofterm yet;
wenzelm
parents:
36768
diff
changeset
|
1239 |
|
41700
f33d5a00c25d
thm_proof: visible fulfill_body only, without joining nested thms -- retain proof irrelevance, which is important for parallel performance;
wenzelm
parents:
41699
diff
changeset
|
1240 |
val ps = map (apsnd (Future.map fulfill_body)) promises; |
37309 | 1241 |
val (pthm as (_, (_, prop', _)), proof) = |
1242 |
Proofterm.unconstrain_thm_proof thy shyps prop ps body; |
|
36883
4ed0d72def50
added Proofterm.unconstrain_thm_proof for Thm.unconstrainT -- loosely based on the version by krauss/schropp;
wenzelm
parents:
36882
diff
changeset
|
1243 |
val der' = make_deriv [] [] [pthm] proof; |
19505 | 1244 |
in |
36883
4ed0d72def50
added Proofterm.unconstrain_thm_proof for Thm.unconstrainT -- loosely based on the version by krauss/schropp;
wenzelm
parents:
36882
diff
changeset
|
1245 |
Thm (der', |
52788 | 1246 |
{thy = thy, |
21646
c07b5b0e8492
thm/prf: separate official name vs. additional tags;
wenzelm
parents:
21576
diff
changeset
|
1247 |
tags = [], |
36769
b6b88bf695b3
Thm.unconstrainT based on Logic.unconstrainT -- no proofterm yet;
wenzelm
parents:
36768
diff
changeset
|
1248 |
maxidx = maxidx_of_term prop', |
b6b88bf695b3
Thm.unconstrainT based on Logic.unconstrainT -- no proofterm yet;
wenzelm
parents:
36768
diff
changeset
|
1249 |
shyps = [[]], (*potentially redundant*) |
36883
4ed0d72def50
added Proofterm.unconstrain_thm_proof for Thm.unconstrainT -- loosely based on the version by krauss/schropp;
wenzelm
parents:
36882
diff
changeset
|
1250 |
hyps = [], |
4ed0d72def50
added Proofterm.unconstrain_thm_proof for Thm.unconstrainT -- loosely based on the version by krauss/schropp;
wenzelm
parents:
36882
diff
changeset
|
1251 |
tpairs = [], |
36769
b6b88bf695b3
Thm.unconstrainT based on Logic.unconstrainT -- no proofterm yet;
wenzelm
parents:
36768
diff
changeset
|
1252 |
prop = prop'}) |
19505 | 1253 |
end; |
399
86cc2b98f9e0
added class_triv: theory -> class -> thm (for axclasses);
wenzelm
parents:
387
diff
changeset
|
1254 |
|
6786 | 1255 |
(* Replace all TFrees not fixed or in the hyps by new TVars *) |
52788 | 1256 |
fun varifyT_global' fixed (Thm (der, {thy, maxidx, shyps, hyps, tpairs, prop, ...})) = |
12500 | 1257 |
let |
29272 | 1258 |
val tfrees = fold Term.add_tfrees hyps fixed; |
13658
c9ad3e64ddcf
Changed handling of flex-flex constraints: now stored in separate
berghofe
parents:
13642
diff
changeset
|
1259 |
val prop1 = attach_tpairs tpairs prop; |
35845
e5980f0ad025
renamed varify/unvarify operations to varify_global/unvarify_global to emphasize that these only work in a global situation;
wenzelm
parents:
35408
diff
changeset
|
1260 |
val (al, prop2) = Type.varify_global tfrees prop1; |
16601
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
1261 |
val (ts, prop3) = Logic.strip_prems (length tpairs, [], prop2); |
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
1262 |
in |
52487
48bc24467008
backout dedd7952a62c: static "proofs" value within theory prevents later inferencing with different configuration;
wenzelm
parents:
52470
diff
changeset
|
1263 |
(al, Thm (deriv_rule1 (Proofterm.varify_proof prop tfrees) der, |
52788 | 1264 |
{thy = thy, |
21646
c07b5b0e8492
thm/prf: separate official name vs. additional tags;
wenzelm
parents:
21576
diff
changeset
|
1265 |
tags = [], |
16601
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
1266 |
maxidx = Int.max (0, maxidx), |
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
1267 |
shyps = shyps, |
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
1268 |
hyps = hyps, |
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
1269 |
tpairs = rev (map Logic.dest_equals ts), |
28321
9f4499bf9384
type thm: fully internal derivation, no longer exported;
wenzelm
parents:
28290
diff
changeset
|
1270 |
prop = prop3})) |
9f4499bf9384
type thm: fully internal derivation, no longer exported;
wenzelm
parents:
28290
diff
changeset
|
1271 |
end; |
9f4499bf9384
type thm: fully internal derivation, no longer exported;
wenzelm
parents:
28290
diff
changeset
|
1272 |
|
35845
e5980f0ad025
renamed varify/unvarify operations to varify_global/unvarify_global to emphasize that these only work in a global situation;
wenzelm
parents:
35408
diff
changeset
|
1273 |
val varifyT_global = #2 o varifyT_global' []; |
28321
9f4499bf9384
type thm: fully internal derivation, no longer exported;
wenzelm
parents:
28290
diff
changeset
|
1274 |
|
36615
88756a5a92fc
renamed Thm.freezeT to Thm.legacy_freezeT -- it is based on Type.legacy_freeze;
wenzelm
parents:
36614
diff
changeset
|
1275 |
(* Replace all TVars by TFrees that are often new *) |
52788 | 1276 |
fun legacy_freezeT (Thm (der, {thy, shyps, hyps, tpairs, prop, ...})) = |
28321
9f4499bf9384
type thm: fully internal derivation, no longer exported;
wenzelm
parents:
28290
diff
changeset
|
1277 |
let |
9f4499bf9384
type thm: fully internal derivation, no longer exported;
wenzelm
parents:
28290
diff
changeset
|
1278 |
val prop1 = attach_tpairs tpairs prop; |
33832 | 1279 |
val prop2 = Type.legacy_freeze prop1; |
28321
9f4499bf9384
type thm: fully internal derivation, no longer exported;
wenzelm
parents:
28290
diff
changeset
|
1280 |
val (ts, prop3) = Logic.strip_prems (length tpairs, [], prop2); |
9f4499bf9384
type thm: fully internal derivation, no longer exported;
wenzelm
parents:
28290
diff
changeset
|
1281 |
in |
52487
48bc24467008
backout dedd7952a62c: static "proofs" value within theory prevents later inferencing with different configuration;
wenzelm
parents:
52470
diff
changeset
|
1282 |
Thm (deriv_rule1 (Proofterm.legacy_freezeT prop1) der, |
52788 | 1283 |
{thy = thy, |
28321
9f4499bf9384
type thm: fully internal derivation, no longer exported;
wenzelm
parents:
28290
diff
changeset
|
1284 |
tags = [], |
9f4499bf9384
type thm: fully internal derivation, no longer exported;
wenzelm
parents:
28290
diff
changeset
|
1285 |
maxidx = maxidx_of_term prop2, |
9f4499bf9384
type thm: fully internal derivation, no longer exported;
wenzelm
parents:
28290
diff
changeset
|
1286 |
shyps = shyps, |
9f4499bf9384
type thm: fully internal derivation, no longer exported;
wenzelm
parents:
28290
diff
changeset
|
1287 |
hyps = hyps, |
9f4499bf9384
type thm: fully internal derivation, no longer exported;
wenzelm
parents:
28290
diff
changeset
|
1288 |
tpairs = rev (map Logic.dest_equals ts), |
18127 | 1289 |
prop = prop3}) |
0 | 1290 |
end; |
1291 |
||
1292 |
||
1293 |
(*** Inference rules for tactics ***) |
|
1294 |
||
1295 |
(*Destruct proof state into constraints, other goals, goal(i), rest *) |
|
28321
9f4499bf9384
type thm: fully internal derivation, no longer exported;
wenzelm
parents:
28290
diff
changeset
|
1296 |
fun dest_state (state as Thm (_, {prop,tpairs,...}), i) = |
13658
c9ad3e64ddcf
Changed handling of flex-flex constraints: now stored in separate
berghofe
parents:
13642
diff
changeset
|
1297 |
(case Logic.strip_prems(i, [], prop) of |
c9ad3e64ddcf
Changed handling of flex-flex constraints: now stored in separate
berghofe
parents:
13642
diff
changeset
|
1298 |
(B::rBs, C) => (tpairs, rev rBs, B, C) |
c9ad3e64ddcf
Changed handling of flex-flex constraints: now stored in separate
berghofe
parents:
13642
diff
changeset
|
1299 |
| _ => raise THM("dest_state", i, [state])) |
0 | 1300 |
handle TERM _ => raise THM("dest_state", i, [state]); |
1301 |
||
46255 | 1302 |
(*Prepare orule for resolution by lifting it over the parameters and |
52487
48bc24467008
backout dedd7952a62c: static "proofs" value within theory prevents later inferencing with different configuration;
wenzelm
parents:
52470
diff
changeset
|
1303 |
assumptions of goal.*) |
18035 | 1304 |
fun lift_rule goal orule = |
16601
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
1305 |
let |
18035 | 1306 |
val Cterm {t = gprop, T, maxidx = gmax, sorts, ...} = goal; |
1307 |
val inc = gmax + 1; |
|
1308 |
val lift_abs = Logic.lift_abs inc gprop; |
|
1309 |
val lift_all = Logic.lift_all inc gprop; |
|
28321
9f4499bf9384
type thm: fully internal derivation, no longer exported;
wenzelm
parents:
28290
diff
changeset
|
1310 |
val Thm (der, {maxidx, shyps, hyps, tpairs, prop, ...}) = orule; |
16601
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
1311 |
val (As, B) = Logic.strip_horn prop; |
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
1312 |
in |
18035 | 1313 |
if T <> propT then raise THM ("lift_rule: the term must have type prop", 0, []) |
1314 |
else |
|
52487
48bc24467008
backout dedd7952a62c: static "proofs" value within theory prevents later inferencing with different configuration;
wenzelm
parents:
52470
diff
changeset
|
1315 |
Thm (deriv_rule1 (Proofterm.lift_proof gprop inc prop) der, |
52788 | 1316 |
{thy = merge_thys1 goal orule, |
21646
c07b5b0e8492
thm/prf: separate official name vs. additional tags;
wenzelm
parents:
21576
diff
changeset
|
1317 |
tags = [], |
18035 | 1318 |
maxidx = maxidx + inc, |
1319 |
shyps = Sorts.union shyps sorts, (*sic!*) |
|
1320 |
hyps = hyps, |
|
59058
a78612c67ec0
renamed "pairself" to "apply2", in accordance to @{apply 2};
wenzelm
parents:
58950
diff
changeset
|
1321 |
tpairs = map (apply2 lift_abs) tpairs, |
28321
9f4499bf9384
type thm: fully internal derivation, no longer exported;
wenzelm
parents:
28290
diff
changeset
|
1322 |
prop = Logic.list_implies (map lift_all As, lift_all B)}) |
0 | 1323 |
end; |
1324 |
||
52788 | 1325 |
fun incr_indexes i (thm as Thm (der, {thy, maxidx, shyps, hyps, tpairs, prop, ...})) = |
16601
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
1326 |
if i < 0 then raise THM ("negative increment", 0, [thm]) |
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
1327 |
else if i = 0 then thm |
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
1328 |
else |
52487
48bc24467008
backout dedd7952a62c: static "proofs" value within theory prevents later inferencing with different configuration;
wenzelm
parents:
52470
diff
changeset
|
1329 |
Thm (deriv_rule1 (Proofterm.incr_indexes i) der, |
52788 | 1330 |
{thy = thy, |
21646
c07b5b0e8492
thm/prf: separate official name vs. additional tags;
wenzelm
parents:
21576
diff
changeset
|
1331 |
tags = [], |
16601
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
1332 |
maxidx = maxidx + i, |
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
1333 |
shyps = shyps, |
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
1334 |
hyps = hyps, |
59787 | 1335 |
tpairs = map (apply2 (Logic.incr_indexes ([], [], i))) tpairs, |
1336 |
prop = Logic.incr_indexes ([], [], i) prop}); |
|
10416
5b33e732e459
- Moved rewriting functions to meta_simplifier.ML
berghofe
parents:
10348
diff
changeset
|
1337 |
|
0 | 1338 |
(*Solve subgoal Bi of proof state B1...Bn/C by assumption. *) |
58950
d07464875dd4
optional proof context for unify operations, for the sake of proper local options;
wenzelm
parents:
58946
diff
changeset
|
1339 |
fun assumption opt_ctxt i state = |
16601
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
1340 |
let |
52788 | 1341 |
val Thm (der, {thy, maxidx, shyps, hyps, ...}) = state; |
58950
d07464875dd4
optional proof context for unify operations, for the sake of proper local options;
wenzelm
parents:
58946
diff
changeset
|
1342 |
val context = make_context opt_ctxt thy; |
16601
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
1343 |
val (tpairs, Bs, Bi, C) = dest_state (state, i); |
32032 | 1344 |
fun newth n (env, tpairs) = |
52487
48bc24467008
backout dedd7952a62c: static "proofs" value within theory prevents later inferencing with different configuration;
wenzelm
parents:
52470
diff
changeset
|
1345 |
Thm (deriv_rule1 |
37309 | 1346 |
((if Envir.is_empty env then I else (Proofterm.norm_proof' env)) o |
1347 |
Proofterm.assumption_proof Bs Bi n) der, |
|
28321
9f4499bf9384
type thm: fully internal derivation, no longer exported;
wenzelm
parents:
28290
diff
changeset
|
1348 |
{tags = [], |
32032 | 1349 |
maxidx = Envir.maxidx_of env, |
26640
92e6d3ec91bd
simplified handling of sorts, removed unnecessary universal witness;
wenzelm
parents:
26631
diff
changeset
|
1350 |
shyps = Envir.insert_sorts env shyps, |
16601
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
1351 |
hyps = hyps, |
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
1352 |
tpairs = |
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
1353 |
if Envir.is_empty env then tpairs |
59058
a78612c67ec0
renamed "pairself" to "apply2", in accordance to @{apply 2};
wenzelm
parents:
58950
diff
changeset
|
1354 |
else map (apply2 (Envir.norm_term env)) tpairs, |
16601
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
1355 |
prop = |
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
1356 |
if Envir.is_empty env then (*avoid wasted normalizations*) |
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
1357 |
Logic.list_implies (Bs, C) |
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
1358 |
else (*normalize the new rule fully*) |
24143
90a9a6fe0d01
replaced Theory.self_ref by Theory.check_thy, which now produces a checked ref;
wenzelm
parents:
23781
diff
changeset
|
1359 |
Envir.norm_term env (Logic.list_implies (Bs, C)), |
52788 | 1360 |
thy = thy}); |
30554
73f8bd5f0af8
substantial speedup of assumption and elim-resolution: Logic.assum_problems refrains from eager application of parameters, discriminate via Term.could_unify before invoking full unification (assumes terms in beta-normal form, as do higher term net operations anyway);
wenzelm
parents:
30466
diff
changeset
|
1361 |
|
30556
7be15917f3fa
eq_assumption: slightly more efficient by checking (open) result of Logic.assum_problems directly;
wenzelm
parents:
30554
diff
changeset
|
1362 |
val (close, asms, concl) = Logic.assum_problems (~1, Bi); |
7be15917f3fa
eq_assumption: slightly more efficient by checking (open) result of Logic.assum_problems directly;
wenzelm
parents:
30554
diff
changeset
|
1363 |
val concl' = close concl; |
16601
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
1364 |
fun addprfs [] _ = Seq.empty |
30556
7be15917f3fa
eq_assumption: slightly more efficient by checking (open) result of Logic.assum_problems directly;
wenzelm
parents:
30554
diff
changeset
|
1365 |
| addprfs (asm :: rest) n = Seq.make (fn () => Seq.pull |
16601
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
1366 |
(Seq.mapp (newth n) |
30556
7be15917f3fa
eq_assumption: slightly more efficient by checking (open) result of Logic.assum_problems directly;
wenzelm
parents:
30554
diff
changeset
|
1367 |
(if Term.could_unify (asm, concl) then |
58950
d07464875dd4
optional proof context for unify operations, for the sake of proper local options;
wenzelm
parents:
58946
diff
changeset
|
1368 |
(Unify.unifiers (context, Envir.empty maxidx, (close asm, concl') :: tpairs)) |
30554
73f8bd5f0af8
substantial speedup of assumption and elim-resolution: Logic.assum_problems refrains from eager application of parameters, discriminate via Term.could_unify before invoking full unification (assumes terms in beta-normal form, as do higher term net operations anyway);
wenzelm
parents:
30466
diff
changeset
|
1369 |
else Seq.empty) |
73f8bd5f0af8
substantial speedup of assumption and elim-resolution: Logic.assum_problems refrains from eager application of parameters, discriminate via Term.could_unify before invoking full unification (assumes terms in beta-normal form, as do higher term net operations anyway);
wenzelm
parents:
30466
diff
changeset
|
1370 |
(addprfs rest (n + 1)))) |
30556
7be15917f3fa
eq_assumption: slightly more efficient by checking (open) result of Logic.assum_problems directly;
wenzelm
parents:
30554
diff
changeset
|
1371 |
in addprfs asms 1 end; |
0 | 1372 |
|
250 | 1373 |
(*Solve subgoal Bi of proof state B1...Bn/C by assumption. |
51604 | 1374 |
Checks if Bi's conclusion is alpha/eta-convertible to one of its assumptions*) |
0 | 1375 |
fun eq_assumption i state = |
16601
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
1376 |
let |
52788 | 1377 |
val Thm (der, {thy, maxidx, shyps, hyps, ...}) = state; |
16601
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
1378 |
val (tpairs, Bs, Bi, C) = dest_state (state, i); |
30556
7be15917f3fa
eq_assumption: slightly more efficient by checking (open) result of Logic.assum_problems directly;
wenzelm
parents:
30554
diff
changeset
|
1379 |
val (_, asms, concl) = Logic.assum_problems (~1, Bi); |
16601
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
1380 |
in |
52131 | 1381 |
(case find_index (fn asm => Envir.aeconv (asm, concl)) asms of |
16601
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
1382 |
~1 => raise THM ("eq_assumption", 0, [state]) |
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
1383 |
| n => |
52487
48bc24467008
backout dedd7952a62c: static "proofs" value within theory prevents later inferencing with different configuration;
wenzelm
parents:
52470
diff
changeset
|
1384 |
Thm (deriv_rule1 (Proofterm.assumption_proof Bs Bi (n + 1)) der, |
52788 | 1385 |
{thy = thy, |
21646
c07b5b0e8492
thm/prf: separate official name vs. additional tags;
wenzelm
parents:
21576
diff
changeset
|
1386 |
tags = [], |
16601
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
1387 |
maxidx = maxidx, |
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
1388 |
shyps = shyps, |
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
1389 |
hyps = hyps, |
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
1390 |
tpairs = tpairs, |
28321
9f4499bf9384
type thm: fully internal derivation, no longer exported;
wenzelm
parents:
28290
diff
changeset
|
1391 |
prop = Logic.list_implies (Bs, C)})) |
0 | 1392 |
end; |
1393 |
||
1394 |
||
2671 | 1395 |
(*For rotate_tac: fast rotation of assumptions of subgoal i*) |
1396 |
fun rotate_rule k i state = |
|
16601
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
1397 |
let |
52788 | 1398 |
val Thm (der, {thy, maxidx, shyps, hyps, ...}) = state; |
16601
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
1399 |
val (tpairs, Bs, Bi, C) = dest_state (state, i); |
46218
ecf6375e2abb
renamed Term.list_all to Logic.list_all, in accordance to HOLogic.list_all;
wenzelm
parents:
46217
diff
changeset
|
1400 |
val params = Term.strip_all_vars Bi; |
ecf6375e2abb
renamed Term.list_all to Logic.list_all, in accordance to HOLogic.list_all;
wenzelm
parents:
46217
diff
changeset
|
1401 |
val rest = Term.strip_all_body Bi; |
ecf6375e2abb
renamed Term.list_all to Logic.list_all, in accordance to HOLogic.list_all;
wenzelm
parents:
46217
diff
changeset
|
1402 |
val asms = Logic.strip_imp_prems rest |
ecf6375e2abb
renamed Term.list_all to Logic.list_all, in accordance to HOLogic.list_all;
wenzelm
parents:
46217
diff
changeset
|
1403 |
val concl = Logic.strip_imp_concl rest; |
16601
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
1404 |
val n = length asms; |
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
1405 |
val m = if k < 0 then n + k else k; |
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
1406 |
val Bi' = |
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
1407 |
if 0 = m orelse m = n then Bi |
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
1408 |
else if 0 < m andalso m < n then |
19012 | 1409 |
let val (ps, qs) = chop m asms |
46218
ecf6375e2abb
renamed Term.list_all to Logic.list_all, in accordance to HOLogic.list_all;
wenzelm
parents:
46217
diff
changeset
|
1410 |
in Logic.list_all (params, Logic.list_implies (qs @ ps, concl)) end |
16601
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
1411 |
else raise THM ("rotate_rule", k, [state]); |
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
1412 |
in |
52487
48bc24467008
backout dedd7952a62c: static "proofs" value within theory prevents later inferencing with different configuration;
wenzelm
parents:
52470
diff
changeset
|
1413 |
Thm (deriv_rule1 (Proofterm.rotate_proof Bs Bi m) der, |
52788 | 1414 |
{thy = thy, |
21646
c07b5b0e8492
thm/prf: separate official name vs. additional tags;
wenzelm
parents:
21576
diff
changeset
|
1415 |
tags = [], |
16601
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
1416 |
maxidx = maxidx, |
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
1417 |
shyps = shyps, |
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
1418 |
hyps = hyps, |
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
1419 |
tpairs = tpairs, |
28321
9f4499bf9384
type thm: fully internal derivation, no longer exported;
wenzelm
parents:
28290
diff
changeset
|
1420 |
prop = Logic.list_implies (Bs @ [Bi'], C)}) |
2671 | 1421 |
end; |
1422 |
||
1423 |
||
7248
322151fe6f02
new primitive rule permute_prems to underlie defer_tac and rotate_prems
paulson
parents:
7070
diff
changeset
|
1424 |
(*Rotates a rule's premises to the left by k, leaving the first j premises |
322151fe6f02
new primitive rule permute_prems to underlie defer_tac and rotate_prems
paulson
parents:
7070
diff
changeset
|
1425 |
unchanged. Does nothing if k=0 or if k equals n-j, where n is the |
58837 | 1426 |
number of premises. Useful with eresolve_tac and underlies defer_tac*) |
7248
322151fe6f02
new primitive rule permute_prems to underlie defer_tac and rotate_prems
paulson
parents:
7070
diff
changeset
|
1427 |
fun permute_prems j k rl = |
16601
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
1428 |
let |
52788 | 1429 |
val Thm (der, {thy, maxidx, shyps, hyps, tpairs, prop, ...}) = rl; |
16601
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
1430 |
val prems = Logic.strip_imp_prems prop |
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
1431 |
and concl = Logic.strip_imp_concl prop; |
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
1432 |
val moved_prems = List.drop (prems, j) |
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
1433 |
and fixed_prems = List.take (prems, j) |
43278 | 1434 |
handle General.Subscript => raise THM ("permute_prems: j", j, [rl]); |
16601
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
1435 |
val n_j = length moved_prems; |
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
1436 |
val m = if k < 0 then n_j + k else k; |
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
1437 |
val prop' = |
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
1438 |
if 0 = m orelse m = n_j then prop |
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
1439 |
else if 0 < m andalso m < n_j then |
19012 | 1440 |
let val (ps, qs) = chop m moved_prems |
16601
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
1441 |
in Logic.list_implies (fixed_prems @ qs @ ps, concl) end |
16725 | 1442 |
else raise THM ("permute_prems: k", k, [rl]); |
16601
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
1443 |
in |
52487
48bc24467008
backout dedd7952a62c: static "proofs" value within theory prevents later inferencing with different configuration;
wenzelm
parents:
52470
diff
changeset
|
1444 |
Thm (deriv_rule1 (Proofterm.permute_prems_proof prems j m) der, |
52788 | 1445 |
{thy = thy, |
21646
c07b5b0e8492
thm/prf: separate official name vs. additional tags;
wenzelm
parents:
21576
diff
changeset
|
1446 |
tags = [], |
16601
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
1447 |
maxidx = maxidx, |
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
1448 |
shyps = shyps, |
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
1449 |
hyps = hyps, |
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
1450 |
tpairs = tpairs, |
28321
9f4499bf9384
type thm: fully internal derivation, no longer exported;
wenzelm
parents:
28290
diff
changeset
|
1451 |
prop = prop'}) |
7248
322151fe6f02
new primitive rule permute_prems to underlie defer_tac and rotate_prems
paulson
parents:
7070
diff
changeset
|
1452 |
end; |
322151fe6f02
new primitive rule permute_prems to underlie defer_tac and rotate_prems
paulson
parents:
7070
diff
changeset
|
1453 |
|
322151fe6f02
new primitive rule permute_prems to underlie defer_tac and rotate_prems
paulson
parents:
7070
diff
changeset
|
1454 |
|
44108
476a239d3e0e
rename_bvs now avoids introducing name clashes between schematic variables
berghofe
parents:
43795
diff
changeset
|
1455 |
(* strip_apply f B A strips off all assumptions/parameters from A |
0 | 1456 |
introduced by lifting over B, and applies f to remaining part of A*) |
1457 |
fun strip_apply f = |
|
56245 | 1458 |
let fun strip (Const ("Pure.imp", _) $ _ $ B1) |
1459 |
(Const ("Pure.imp", _) $ A2 $ B2) = Logic.mk_implies (A2, strip B1 B2) |
|
1460 |
| strip ((c as Const ("Pure.all", _)) $ Abs (_, _, t1)) |
|
1461 |
( Const ("Pure.all", _) $ Abs (a, T, t2)) = c $ Abs (a, T, strip t1 t2) |
|
44108
476a239d3e0e
rename_bvs now avoids introducing name clashes between schematic variables
berghofe
parents:
43795
diff
changeset
|
1462 |
| strip _ A = f A |
0 | 1463 |
in strip end; |
1464 |
||
56245 | 1465 |
fun strip_lifted (Const ("Pure.imp", _) $ _ $ B1) |
1466 |
(Const ("Pure.imp", _) $ _ $ B2) = strip_lifted B1 B2 |
|
1467 |
| strip_lifted (Const ("Pure.all", _) $ Abs (_, _, t1)) |
|
1468 |
(Const ("Pure.all", _) $ Abs (_, _, t2)) = strip_lifted t1 t2 |
|
44108
476a239d3e0e
rename_bvs now avoids introducing name clashes between schematic variables
berghofe
parents:
43795
diff
changeset
|
1469 |
| strip_lifted _ A = A; |
476a239d3e0e
rename_bvs now avoids introducing name clashes between schematic variables
berghofe
parents:
43795
diff
changeset
|
1470 |
|
0 | 1471 |
(*Use the alist to rename all bound variables and some unknowns in a term |
1472 |
dpairs = current disagreement pairs; tpairs = permanent ones (flexflex); |
|
1473 |
Preserves unknowns in tpairs and on lhs of dpairs. *) |
|
44108
476a239d3e0e
rename_bvs now avoids introducing name clashes between schematic variables
berghofe
parents:
43795
diff
changeset
|
1474 |
fun rename_bvs [] _ _ _ _ = K I |
476a239d3e0e
rename_bvs now avoids introducing name clashes between schematic variables
berghofe
parents:
43795
diff
changeset
|
1475 |
| rename_bvs al dpairs tpairs B As = |
20330 | 1476 |
let |
1477 |
val add_var = fold_aterms (fn Var ((x, _), _) => insert (op =) x | _ => I); |
|
1478 |
val vids = [] |
|
1479 |
|> fold (add_var o fst) dpairs |
|
1480 |
|> fold (add_var o fst) tpairs |
|
1481 |
|> fold (add_var o snd) tpairs; |
|
44108
476a239d3e0e
rename_bvs now avoids introducing name clashes between schematic variables
berghofe
parents:
43795
diff
changeset
|
1482 |
val vids' = fold (add_var o strip_lifted B) As []; |
250 | 1483 |
(*unknowns appearing elsewhere be preserved!*) |
59058
a78612c67ec0
renamed "pairself" to "apply2", in accordance to @{apply 2};
wenzelm
parents:
58950
diff
changeset
|
1484 |
val al' = distinct ((op =) o apply2 fst) |
44108
476a239d3e0e
rename_bvs now avoids introducing name clashes between schematic variables
berghofe
parents:
43795
diff
changeset
|
1485 |
(filter_out (fn (x, y) => |
476a239d3e0e
rename_bvs now avoids introducing name clashes between schematic variables
berghofe
parents:
43795
diff
changeset
|
1486 |
not (member (op =) vids' x) orelse |
476a239d3e0e
rename_bvs now avoids introducing name clashes between schematic variables
berghofe
parents:
43795
diff
changeset
|
1487 |
member (op =) vids x orelse member (op =) vids y) al); |
476a239d3e0e
rename_bvs now avoids introducing name clashes between schematic variables
berghofe
parents:
43795
diff
changeset
|
1488 |
val unchanged = filter_out (AList.defined (op =) al') vids'; |
476a239d3e0e
rename_bvs now avoids introducing name clashes between schematic variables
berghofe
parents:
43795
diff
changeset
|
1489 |
fun del_clashing clash xs _ [] qs = |
476a239d3e0e
rename_bvs now avoids introducing name clashes between schematic variables
berghofe
parents:
43795
diff
changeset
|
1490 |
if clash then del_clashing false xs xs qs [] else qs |
476a239d3e0e
rename_bvs now avoids introducing name clashes between schematic variables
berghofe
parents:
43795
diff
changeset
|
1491 |
| del_clashing clash xs ys ((p as (x, y)) :: ps) qs = |
476a239d3e0e
rename_bvs now avoids introducing name clashes between schematic variables
berghofe
parents:
43795
diff
changeset
|
1492 |
if member (op =) ys y |
476a239d3e0e
rename_bvs now avoids introducing name clashes between schematic variables
berghofe
parents:
43795
diff
changeset
|
1493 |
then del_clashing true (x :: xs) (x :: ys) ps qs |
476a239d3e0e
rename_bvs now avoids introducing name clashes between schematic variables
berghofe
parents:
43795
diff
changeset
|
1494 |
else del_clashing clash xs (y :: ys) ps (p :: qs); |
46497
89ccf66aa73d
renamed Thm.capply to Thm.apply, and Thm.cabs to Thm.lambda in conformance with similar operations in structure Term and Logic;
wenzelm
parents:
46475
diff
changeset
|
1495 |
val al'' = del_clashing false unchanged unchanged al' []; |
44108
476a239d3e0e
rename_bvs now avoids introducing name clashes between schematic variables
berghofe
parents:
43795
diff
changeset
|
1496 |
fun rename (t as Var ((x, i), T)) = |
476a239d3e0e
rename_bvs now avoids introducing name clashes between schematic variables
berghofe
parents:
43795
diff
changeset
|
1497 |
(case AList.lookup (op =) al'' x of |
476a239d3e0e
rename_bvs now avoids introducing name clashes between schematic variables
berghofe
parents:
43795
diff
changeset
|
1498 |
SOME y => Var ((y, i), T) |
476a239d3e0e
rename_bvs now avoids introducing name clashes between schematic variables
berghofe
parents:
43795
diff
changeset
|
1499 |
| NONE => t) |
476a239d3e0e
rename_bvs now avoids introducing name clashes between schematic variables
berghofe
parents:
43795
diff
changeset
|
1500 |
| rename (Abs (x, T, t)) = |
18944 | 1501 |
Abs (the_default x (AList.lookup (op =) al x), T, rename t) |
44108
476a239d3e0e
rename_bvs now avoids introducing name clashes between schematic variables
berghofe
parents:
43795
diff
changeset
|
1502 |
| rename (f $ t) = rename f $ rename t |
476a239d3e0e
rename_bvs now avoids introducing name clashes between schematic variables
berghofe
parents:
43795
diff
changeset
|
1503 |
| rename t = t; |
476a239d3e0e
rename_bvs now avoids introducing name clashes between schematic variables
berghofe
parents:
43795
diff
changeset
|
1504 |
fun strip_ren f Ai = f rename B Ai |
20330 | 1505 |
in strip_ren end; |
0 | 1506 |
|
1507 |
(*Function to rename bounds/unknowns in the argument, lifted over B*) |
|
44108
476a239d3e0e
rename_bvs now avoids introducing name clashes between schematic variables
berghofe
parents:
43795
diff
changeset
|
1508 |
fun rename_bvars dpairs = |
48263 | 1509 |
rename_bvs (fold_rev Term.match_bvars dpairs []) dpairs; |
0 | 1510 |
|
1511 |
||
1512 |
(*** RESOLUTION ***) |
|
1513 |
||
721
479832ff2d29
Pure/thm/norm_term_skip: new, for skipping normalization of the context
lcp
parents:
678
diff
changeset
|
1514 |
(** Lifting optimizations **) |
479832ff2d29
Pure/thm/norm_term_skip: new, for skipping normalization of the context
lcp
parents:
678
diff
changeset
|
1515 |
|
0 | 1516 |
(*strip off pairs of assumptions/parameters in parallel -- they are |
1517 |
identical because of lifting*) |
|
56245 | 1518 |
fun strip_assums2 (Const("Pure.imp", _) $ _ $ B1, |
1519 |
Const("Pure.imp", _) $ _ $ B2) = strip_assums2 (B1,B2) |
|
1520 |
| strip_assums2 (Const("Pure.all",_)$Abs(a,T,t1), |
|
1521 |
Const("Pure.all",_)$Abs(_,_,t2)) = |
|
0 | 1522 |
let val (B1,B2) = strip_assums2 (t1,t2) |
1523 |
in (Abs(a,T,B1), Abs(a,T,B2)) end |
|
1524 |
| strip_assums2 BB = BB; |
|
1525 |
||
1526 |
||
721
479832ff2d29
Pure/thm/norm_term_skip: new, for skipping normalization of the context
lcp
parents:
678
diff
changeset
|
1527 |
(*Faster normalization: skip assumptions that were lifted over*) |
479832ff2d29
Pure/thm/norm_term_skip: new, for skipping normalization of the context
lcp
parents:
678
diff
changeset
|
1528 |
fun norm_term_skip env 0 t = Envir.norm_term env t |
56245 | 1529 |
| norm_term_skip env n (Const ("Pure.all", _) $ Abs (a, T, t)) = |
32032 | 1530 |
let |
58946
3bf80312508e
proper Envir.norm_type for result of Unify.unifiers (amending 479832ff2d29 from 20 years ago);
wenzelm
parents:
58837
diff
changeset
|
1531 |
val T' = Envir.norm_type (Envir.type_env env) T |
32032 | 1532 |
(*Must instantiate types of parameters because they are flattened; |
1533 |
this could be a NEW parameter*) |
|
46217
7b19666f0e3d
renamed Term.all to Logic.all_const, in accordance to HOLogic.all_const;
wenzelm
parents:
45443
diff
changeset
|
1534 |
in Logic.all_const T' $ Abs (a, T', norm_term_skip env n t) end |
56245 | 1535 |
| norm_term_skip env n (Const ("Pure.imp", _) $ A $ B) = |
32032 | 1536 |
Logic.mk_implies (A, norm_term_skip env (n - 1) B) |
32784 | 1537 |
| norm_term_skip _ _ _ = error "norm_term_skip: too few assumptions??"; |
721
479832ff2d29
Pure/thm/norm_term_skip: new, for skipping normalization of the context
lcp
parents:
678
diff
changeset
|
1538 |
|
479832ff2d29
Pure/thm/norm_term_skip: new, for skipping normalization of the context
lcp
parents:
678
diff
changeset
|
1539 |
|
52222
0fa3b456a267
unify types of schematic variables in non-lifted case (i.e. "compose variants") -- allow schematic polymorphism, without revisiting HO-unification;
wenzelm
parents:
52131
diff
changeset
|
1540 |
(*unify types of schematic variables (non-lifted case)*) |
58950
d07464875dd4
optional proof context for unify operations, for the sake of proper local options;
wenzelm
parents:
58946
diff
changeset
|
1541 |
fun unify_var_types context (th1, th2) env = |
52222
0fa3b456a267
unify types of schematic variables in non-lifted case (i.e. "compose variants") -- allow schematic polymorphism, without revisiting HO-unification;
wenzelm
parents:
52131
diff
changeset
|
1542 |
let |
58950
d07464875dd4
optional proof context for unify operations, for the sake of proper local options;
wenzelm
parents:
58946
diff
changeset
|
1543 |
fun unify_vars (T :: Us) = fold (fn U => Pattern.unify_types context (T, U)) Us |
52222
0fa3b456a267
unify types of schematic variables in non-lifted case (i.e. "compose variants") -- allow schematic polymorphism, without revisiting HO-unification;
wenzelm
parents:
52131
diff
changeset
|
1544 |
| unify_vars _ = I; |
0fa3b456a267
unify types of schematic variables in non-lifted case (i.e. "compose variants") -- allow schematic polymorphism, without revisiting HO-unification;
wenzelm
parents:
52131
diff
changeset
|
1545 |
val add_vars = |
0fa3b456a267
unify types of schematic variables in non-lifted case (i.e. "compose variants") -- allow schematic polymorphism, without revisiting HO-unification;
wenzelm
parents:
52131
diff
changeset
|
1546 |
full_prop_of #> |
0fa3b456a267
unify types of schematic variables in non-lifted case (i.e. "compose variants") -- allow schematic polymorphism, without revisiting HO-unification;
wenzelm
parents:
52131
diff
changeset
|
1547 |
fold_aterms (fn Var v => Vartab.insert_list (op =) v | _ => I); |
0fa3b456a267
unify types of schematic variables in non-lifted case (i.e. "compose variants") -- allow schematic polymorphism, without revisiting HO-unification;
wenzelm
parents:
52131
diff
changeset
|
1548 |
val vars = Vartab.empty |> add_vars th1 |> add_vars th2; |
0fa3b456a267
unify types of schematic variables in non-lifted case (i.e. "compose variants") -- allow schematic polymorphism, without revisiting HO-unification;
wenzelm
parents:
52131
diff
changeset
|
1549 |
in SOME (Vartab.fold (unify_vars o #2) vars env) end |
0fa3b456a267
unify types of schematic variables in non-lifted case (i.e. "compose variants") -- allow schematic polymorphism, without revisiting HO-unification;
wenzelm
parents:
52131
diff
changeset
|
1550 |
handle Pattern.Unif => NONE; |
0fa3b456a267
unify types of schematic variables in non-lifted case (i.e. "compose variants") -- allow schematic polymorphism, without revisiting HO-unification;
wenzelm
parents:
52131
diff
changeset
|
1551 |
|
0 | 1552 |
(*Composition of object rule r=(A1...Am/B) with proof state s=(B1...Bn/C) |
250 | 1553 |
Unifies B with Bi, replacing subgoal i (1 <= i <= n) |
0 | 1554 |
If match then forbid instantiations in proof state |
1555 |
If lifted then shorten the dpair using strip_assums2. |
|
1556 |
If eres_flg then simultaneously proves A1 by assumption. |
|
250 | 1557 |
nsubgoal is the number of new subgoals (written m above). |
0 | 1558 |
Curried so that resolution calls dest_state only once. |
1559 |
*) |
|
4270 | 1560 |
local exception COMPOSE |
0 | 1561 |
in |
58950
d07464875dd4
optional proof context for unify operations, for the sake of proper local options;
wenzelm
parents:
58946
diff
changeset
|
1562 |
fun bicompose_aux opt_ctxt {flatten, match, incremented} (state, (stpairs, Bs, Bi, C), lifted) |
0 | 1563 |
(eres_flg, orule, nsubgoal) = |
28321
9f4499bf9384
type thm: fully internal derivation, no longer exported;
wenzelm
parents:
28290
diff
changeset
|
1564 |
let val Thm (sder, {maxidx=smax, shyps=sshyps, hyps=shyps, ...}) = state |
9f4499bf9384
type thm: fully internal derivation, no longer exported;
wenzelm
parents:
28290
diff
changeset
|
1565 |
and Thm (rder, {maxidx=rmax, shyps=rshyps, hyps=rhyps, |
9f4499bf9384
type thm: fully internal derivation, no longer exported;
wenzelm
parents:
28290
diff
changeset
|
1566 |
tpairs=rtpairs, prop=rprop,...}) = orule |
1529 | 1567 |
(*How many hyps to skip over during normalization*) |
21576 | 1568 |
and nlift = Logic.count_prems (strip_all_body Bi) + (if eres_flg then ~1 else 0) |
52788 | 1569 |
val thy = merge_thys2 state orule; |
58950
d07464875dd4
optional proof context for unify operations, for the sake of proper local options;
wenzelm
parents:
58946
diff
changeset
|
1570 |
val context = make_context opt_ctxt thy; |
0 | 1571 |
(** Add new theorem with prop = '[| Bs; As |] ==> C' to thq **) |
32032 | 1572 |
fun addth A (As, oldAs, rder', n) ((env, tpairs), thq) = |
250 | 1573 |
let val normt = Envir.norm_term env; |
1574 |
(*perform minimal copying here by examining env*) |
|
13658
c9ad3e64ddcf
Changed handling of flex-flex constraints: now stored in separate
berghofe
parents:
13642
diff
changeset
|
1575 |
val (ntpairs, normp) = |
c9ad3e64ddcf
Changed handling of flex-flex constraints: now stored in separate
berghofe
parents:
13642
diff
changeset
|
1576 |
if Envir.is_empty env then (tpairs, (Bs @ As, C)) |
250 | 1577 |
else |
59058
a78612c67ec0
renamed "pairself" to "apply2", in accordance to @{apply 2};
wenzelm
parents:
58950
diff
changeset
|
1578 |
let val ntps = map (apply2 normt) tpairs |
19861 | 1579 |
in if Envir.above env smax then |
1238 | 1580 |
(*no assignments in state; normalize the rule only*) |
1581 |
if lifted |
|
13658
c9ad3e64ddcf
Changed handling of flex-flex constraints: now stored in separate
berghofe
parents:
13642
diff
changeset
|
1582 |
then (ntps, (Bs @ map (norm_term_skip env nlift) As, C)) |
c9ad3e64ddcf
Changed handling of flex-flex constraints: now stored in separate
berghofe
parents:
13642
diff
changeset
|
1583 |
else (ntps, (Bs @ map normt As, C)) |
1529 | 1584 |
else if match then raise COMPOSE |
250 | 1585 |
else (*normalize the new rule fully*) |
13658
c9ad3e64ddcf
Changed handling of flex-flex constraints: now stored in separate
berghofe
parents:
13642
diff
changeset
|
1586 |
(ntps, (map normt (Bs @ As), normt C)) |
250 | 1587 |
end |
16601
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
1588 |
val th = |
52487
48bc24467008
backout dedd7952a62c: static "proofs" value within theory prevents later inferencing with different configuration;
wenzelm
parents:
52470
diff
changeset
|
1589 |
Thm (deriv_rule2 |
11518 | 1590 |
((if Envir.is_empty env then I |
19861 | 1591 |
else if Envir.above env smax then |
37309 | 1592 |
(fn f => fn der => f (Proofterm.norm_proof' env der)) |
11518 | 1593 |
else |
37309 | 1594 |
curry op oo (Proofterm.norm_proof' env)) |
1595 |
(Proofterm.bicompose_proof flatten Bs oldAs As A n (nlift+1))) rder' sder, |
|
28321
9f4499bf9384
type thm: fully internal derivation, no longer exported;
wenzelm
parents:
28290
diff
changeset
|
1596 |
{tags = [], |
32032 | 1597 |
maxidx = Envir.maxidx_of env, |
26640
92e6d3ec91bd
simplified handling of sorts, removed unnecessary universal witness;
wenzelm
parents:
26631
diff
changeset
|
1598 |
shyps = Envir.insert_sorts env (Sorts.union rshyps sshyps), |
16601
ee8eefade568
more efficient treatment of shyps and hyps (use ordered lists);
wenzelm
parents:
16425
diff
changeset
|
1599 |
hyps = union_hyps rhyps shyps, |
13658
c9ad3e64ddcf
Changed handling of flex-flex constraints: now stored in separate
berghofe
parents:
13642
diff
changeset
|
1600 |
tpairs = ntpairs, |
24143
90a9a6fe0d01
replaced Theory.self_ref by Theory.check_thy, which now produces a checked ref;
wenzelm
parents:
23781
diff
changeset
|
1601 |
prop = Logic.list_implies normp, |
52788 | 1602 |
thy = thy}) |
19475 | 1603 |
in Seq.cons th thq end handle COMPOSE => thq; |
13658
c9ad3e64ddcf
Changed handling of flex-flex constraints: now stored in separate
berghofe
parents:
13642
diff
changeset
|
1604 |
val (rAs,B) = Logic.strip_prems(nsubgoal, [], rprop) |
0 | 1605 |
handle TERM _ => raise THM("bicompose: rule", 0, [orule,state]); |
1606 |
(*Modify assumptions, deleting n-th if n>0 for e-resolution*) |
|
1607 |
fun newAs(As0, n, dpairs, tpairs) = |
|
11518 | 1608 |
let val (As1, rder') = |
25939 | 1609 |
if not lifted then (As0, rder) |
44108
476a239d3e0e
rename_bvs now avoids introducing name clashes between schematic variables
berghofe
parents:
43795
diff
changeset
|
1610 |
else |
476a239d3e0e
rename_bvs now avoids introducing name clashes between schematic variables
berghofe
parents:
43795
diff
changeset
|
1611 |
let val rename = rename_bvars dpairs tpairs B As0 |
476a239d3e0e
rename_bvs now avoids introducing name clashes between schematic variables
berghofe
parents:
43795
diff
changeset
|
1612 |
in (map (rename strip_apply) As0, |
52487
48bc24467008
backout dedd7952a62c: static "proofs" value within theory prevents later inferencing with different configuration;
wenzelm
parents:
52470
diff
changeset
|
1613 |
deriv_rule1 (Proofterm.map_proof_terms (rename K) I) rder) |
44108
476a239d3e0e
rename_bvs now avoids introducing name clashes between schematic variables
berghofe
parents:
43795
diff
changeset
|
1614 |
end; |
18486 | 1615 |
in (map (if flatten then (Logic.flatten_params n) else I) As1, As1, rder', n) |
250 | 1616 |
handle TERM _ => |
1617 |
raise THM("bicompose: 1st premise", 0, [orule]) |
|
0 | 1618 |
end; |
1619 |
val BBi = if lifted then strip_assums2(B,Bi) else (B,Bi); |
|
1620 |
val dpairs = BBi :: (rtpairs@stpairs); |
|
30554
73f8bd5f0af8
substantial speedup of assumption and elim-resolution: Logic.assum_problems refrains from eager application of parameters, discriminate via Term.could_unify before invoking full unification (assumes terms in beta-normal form, as do higher term net operations anyway);
wenzelm
parents:
30466
diff
changeset
|
1621 |
|
73f8bd5f0af8
substantial speedup of assumption and elim-resolution: Logic.assum_problems refrains from eager application of parameters, discriminate via Term.could_unify before invoking full unification (assumes terms in beta-normal form, as do higher term net operations anyway);
wenzelm
parents:
30466
diff
changeset
|
1622 |
(*elim-resolution: try each assumption in turn*) |
52222
0fa3b456a267
unify types of schematic variables in non-lifted case (i.e. "compose variants") -- allow schematic polymorphism, without revisiting HO-unification;
wenzelm
parents:
52131
diff
changeset
|
1623 |
fun eres _ [] = raise THM ("bicompose: no premises", 0, [orule, state]) |
0fa3b456a267
unify types of schematic variables in non-lifted case (i.e. "compose variants") -- allow schematic polymorphism, without revisiting HO-unification;
wenzelm
parents:
52131
diff
changeset
|
1624 |
| eres env (A1 :: As) = |
30554
73f8bd5f0af8
substantial speedup of assumption and elim-resolution: Logic.assum_problems refrains from eager application of parameters, discriminate via Term.could_unify before invoking full unification (assumes terms in beta-normal form, as do higher term net operations anyway);
wenzelm
parents:
30466
diff
changeset
|
1625 |
let |
73f8bd5f0af8
substantial speedup of assumption and elim-resolution: Logic.assum_problems refrains from eager application of parameters, discriminate via Term.could_unify before invoking full unification (assumes terms in beta-normal form, as do higher term net operations anyway);
wenzelm
parents:
30466
diff
changeset
|
1626 |
val A = SOME A1; |
30556
7be15917f3fa
eq_assumption: slightly more efficient by checking (open) result of Logic.assum_problems directly;
wenzelm
parents:
30554
diff
changeset
|
1627 |
val (close, asms, concl) = Logic.assum_problems (nlift + 1, A1); |
7be15917f3fa
eq_assumption: slightly more efficient by checking (open) result of Logic.assum_problems directly;
wenzelm
parents:
30554
diff
changeset
|
1628 |
val concl' = close concl; |
30554
73f8bd5f0af8
substantial speedup of assumption and elim-resolution: Logic.assum_problems refrains from eager application of parameters, discriminate via Term.could_unify before invoking full unification (assumes terms in beta-normal form, as do higher term net operations anyway);
wenzelm
parents:
30466
diff
changeset
|
1629 |
fun tryasms [] _ = Seq.empty |
30556
7be15917f3fa
eq_assumption: slightly more efficient by checking (open) result of Logic.assum_problems directly;
wenzelm
parents:
30554
diff
changeset
|
1630 |
| tryasms (asm :: rest) n = |
7be15917f3fa
eq_assumption: slightly more efficient by checking (open) result of Logic.assum_problems directly;
wenzelm
parents:
30554
diff
changeset
|
1631 |
if Term.could_unify (asm, concl) then |
7be15917f3fa
eq_assumption: slightly more efficient by checking (open) result of Logic.assum_problems directly;
wenzelm
parents:
30554
diff
changeset
|
1632 |
let val asm' = close asm in |
58950
d07464875dd4
optional proof context for unify operations, for the sake of proper local options;
wenzelm
parents:
58946
diff
changeset
|
1633 |
(case Seq.pull (Unify.unifiers (context, env, (asm', concl') :: dpairs)) of |
30554
73f8bd5f0af8
substantial speedup of assumption and elim-resolution: Logic.assum_problems refrains from eager application of parameters, discriminate via Term.could_unify before invoking full unification (assumes terms in beta-normal form, as do higher term net operations anyway);
wenzelm
parents:
30466
diff
changeset
|
1634 |
NONE => tryasms rest (n + 1) |
73f8bd5f0af8
substantial speedup of assumption and elim-resolution: Logic.assum_problems refrains from eager application of parameters, discriminate via Term.could_unify before invoking full unification (assumes terms in beta-normal form, as do higher term net operations anyway);
wenzelm
parents:
30466
diff
changeset
|
1635 |
| cell as SOME ((_, tpairs), _) => |
30556
7be15917f3fa
eq_assumption: slightly more efficient by checking (open) result of Logic.assum_problems directly;
wenzelm
parents:
30554
diff
changeset
|
1636 |
Seq.it_right (addth A (newAs (As, n, [BBi, (concl', asm')], tpairs))) |
30554
73f8bd5f0af8
substantial speedup of assumption and elim-resolution: Logic.assum_problems refrains from eager application of parameters, discriminate via Term.could_unify before invoking full unification (assumes terms in beta-normal form, as do higher term net operations anyway);
wenzelm
parents:
30466
diff
changeset
|
1637 |
(Seq.make (fn () => cell), |
73f8bd5f0af8
substantial speedup of assumption and elim-resolution: Logic.assum_problems refrains from eager application of parameters, discriminate via Term.could_unify before invoking full unification (assumes terms in beta-normal form, as do higher term net operations anyway);
wenzelm
parents:
30466
diff
changeset
|
1638 |
Seq.make (fn () => Seq.pull (tryasms rest (n + 1))))) |
73f8bd5f0af8
substantial speedup of assumption and elim-resolution: Logic.assum_problems refrains from eager application of parameters, discriminate via Term.could_unify before invoking full unification (assumes terms in beta-normal form, as do higher term net operations anyway);
wenzelm
parents:
30466
diff
changeset
|
1639 |
end |
73f8bd5f0af8
substantial speedup of assumption and elim-resolution: Logic.assum_problems refrains from eager application of parameters, discriminate via Term.could_unify before invoking full unification (assumes terms in beta-normal form, as do higher term net operations anyway);
wenzelm
parents:
30466
diff
changeset
|
1640 |
else tryasms rest (n + 1); |
30556
7be15917f3fa
eq_assumption: slightly more efficient by checking (open) result of Logic.assum_problems directly;
wenzelm
parents:
30554
diff
changeset
|
1641 |
in tryasms asms 1 end; |
30554
73f8bd5f0af8
substantial speedup of assumption and elim-resolution: Logic.assum_problems refrains from eager application of parameters, discriminate via Term.could_unify before invoking full unification (assumes terms in beta-normal form, as do higher term net operations anyway);
wenzelm
parents:
30466
diff
changeset
|
1642 |
|
0 | 1643 |
(*ordinary resolution*) |
52222
0fa3b456a267
unify types of schematic variables in non-lifted case (i.e. "compose variants") -- allow schematic polymorphism, without revisiting HO-unification;
wenzelm
parents:
52131
diff
changeset
|
1644 |
fun res env = |
58950
d07464875dd4
optional proof context for unify operations, for the sake of proper local options;
wenzelm
parents:
58946
diff
changeset
|
1645 |
(case Seq.pull (Unify.unifiers (context, env, dpairs)) of |
30554
73f8bd5f0af8
substantial speedup of assumption and elim-resolution: Logic.assum_problems refrains from eager application of parameters, discriminate via Term.could_unify before invoking full unification (assumes terms in beta-normal form, as do higher term net operations anyway);
wenzelm
parents:
30466
diff
changeset
|
1646 |
NONE => Seq.empty |
73f8bd5f0af8
substantial speedup of assumption and elim-resolution: Logic.assum_problems refrains from eager application of parameters, discriminate via Term.could_unify before invoking full unification (assumes terms in beta-normal form, as do higher term net operations anyway);
wenzelm
parents:
30466
diff
changeset
|
1647 |
| cell as SOME ((_, tpairs), _) => |
73f8bd5f0af8
substantial speedup of assumption and elim-resolution: Logic.assum_problems refrains from eager application of parameters, discriminate via Term.could_unify before invoking full unification (assumes terms in beta-normal form, as do higher term net operations anyway);
wenzelm
parents:
30466
diff
changeset
|
1648 |
Seq.it_right (addth NONE (newAs (rev rAs, 0, [BBi], tpairs))) |
73f8bd5f0af8
substantial speedup of assumption and elim-resolution: Logic.assum_problems refrains from eager application of parameters, discriminate via Term.could_unify before invoking full unification (assumes terms in beta-normal form, as do higher term net operations anyway);
wenzelm
parents:
30466
diff
changeset
|
1649 |
(Seq.make (fn () => cell), Seq.empty)); |
52222
0fa3b456a267
unify types of schematic variables in non-lifted case (i.e. "compose variants") -- allow schematic polymorphism, without revisiting HO-unification;
wenzelm
parents:
52131
diff
changeset
|
1650 |
|
0fa3b456a267
unify types of schematic variables in non-lifted case (i.e. "compose variants") -- allow schematic polymorphism, without revisiting HO-unification;
wenzelm
parents:
52131
diff
changeset
|
1651 |
val env0 = Envir.empty (Int.max (rmax, smax)); |
30554
73f8bd5f0af8
substantial speedup of assumption and elim-resolution: Logic.assum_problems refrains from eager application of parameters, discriminate via Term.could_unify before invoking full unification (assumes terms in beta-normal form, as do higher term net operations anyway);
wenzelm
parents:
30466
diff
changeset
|
1652 |
in |
58950
d07464875dd4
optional proof context for unify operations, for the sake of proper local options;
wenzelm
parents:
58946
diff
changeset
|
1653 |
(case if incremented then SOME env0 else unify_var_types context (state, orule) env0 of |
52222
0fa3b456a267
unify types of schematic variables in non-lifted case (i.e. "compose variants") -- allow schematic polymorphism, without revisiting HO-unification;
wenzelm
parents:
52131
diff
changeset
|
1654 |
NONE => Seq.empty |
0fa3b456a267
unify types of schematic variables in non-lifted case (i.e. "compose variants") -- allow schematic polymorphism, without revisiting HO-unification;
wenzelm
parents:
52131
diff
changeset
|
1655 |
| SOME env => if eres_flg then eres env (rev rAs) else res env) |
0 | 1656 |
end; |
7528 | 1657 |
end; |
0 | 1658 |
|
58950
d07464875dd4
optional proof context for unify operations, for the sake of proper local options;
wenzelm
parents:
58946
diff
changeset
|
1659 |
fun bicompose opt_ctxt flags arg i state = |
d07464875dd4
optional proof context for unify operations, for the sake of proper local options;
wenzelm
parents:
58946
diff
changeset
|
1660 |
bicompose_aux opt_ctxt flags (state, dest_state (state,i), false) arg; |
0 | 1661 |
|
1662 |
(*Quick test whether rule is resolvable with the subgoal with hyps Hs |
|
1663 |
and conclusion B. If eres_flg then checks 1st premise of rule also*) |
|
1664 |
fun could_bires (Hs, B, eres_flg, rule) = |
|
29269
5c25a2012975
moved term order operations to structure TermOrd (cf. Pure/term_ord.ML);
wenzelm
parents:
29003
diff
changeset
|
1665 |
let fun could_reshyp (A1::_) = exists (fn H => Term.could_unify (A1, H)) Hs |
250 | 1666 |
| could_reshyp [] = false; (*no premise -- illegal*) |
29269
5c25a2012975
moved term order operations to structure TermOrd (cf. Pure/term_ord.ML);
wenzelm
parents:
29003
diff
changeset
|
1667 |
in Term.could_unify(concl_of rule, B) andalso |
250 | 1668 |
(not eres_flg orelse could_reshyp (prems_of rule)) |
0 | 1669 |
end; |
1670 |
||
1671 |
(*Bi-resolution of a state with a list of (flag,rule) pairs. |
|
1672 |
Puts the rule above: rule/state. Renames vars in the rules. *) |
|
58950
d07464875dd4
optional proof context for unify operations, for the sake of proper local options;
wenzelm
parents:
58946
diff
changeset
|
1673 |
fun biresolution opt_ctxt match brules i state = |
18035 | 1674 |
let val (stpairs, Bs, Bi, C) = dest_state(state,i); |
18145 | 1675 |
val lift = lift_rule (cprem_of state i); |
250 | 1676 |
val B = Logic.strip_assums_concl Bi; |
1677 |
val Hs = Logic.strip_assums_hyp Bi; |
|
52223
5bb6ae8acb87
tuned signature -- more explicit flags for low-level Thm.bicompose;
wenzelm
parents:
52222
diff
changeset
|
1678 |
val compose = |
58950
d07464875dd4
optional proof context for unify operations, for the sake of proper local options;
wenzelm
parents:
58946
diff
changeset
|
1679 |
bicompose_aux opt_ctxt {flatten = true, match = match, incremented = true} |
52223
5bb6ae8acb87
tuned signature -- more explicit flags for low-level Thm.bicompose;
wenzelm
parents:
52222
diff
changeset
|
1680 |
(state, (stpairs, Bs, Bi, C), true); |
4270 | 1681 |
fun res [] = Seq.empty |
250 | 1682 |
| res ((eres_flg, rule)::brules) = |
58950
d07464875dd4
optional proof context for unify operations, for the sake of proper local options;
wenzelm
parents:
58946
diff
changeset
|
1683 |
if Config.get_generic (make_context opt_ctxt (theory_of_thm state)) |
d07464875dd4
optional proof context for unify operations, for the sake of proper local options;
wenzelm
parents:
58946
diff
changeset
|
1684 |
Pattern.unify_trace_failure orelse could_bires (Hs, B, eres_flg, rule) |
4270 | 1685 |
then Seq.make (*delay processing remainder till needed*) |
22573 | 1686 |
(fn()=> SOME(compose (eres_flg, lift rule, nprems_of rule), |
250 | 1687 |
res brules)) |
1688 |
else res brules |
|
4270 | 1689 |
in Seq.flat (res brules) end; |
0 | 1690 |
|
1691 |
||
28321
9f4499bf9384
type thm: fully internal derivation, no longer exported;
wenzelm
parents:
28290
diff
changeset
|
1692 |
|
2509 | 1693 |
(*** Oracles ***) |
1694 |
||
28290 | 1695 |
(* oracle rule *) |
1696 |
||
52788 | 1697 |
fun invoke_oracle thy1 name oracle arg = |
1698 |
let val Cterm {thy = thy2, t = prop, T, maxidx, sorts} = oracle arg in |
|
28290 | 1699 |
if T <> propT then |
1700 |
raise THM ("Oracle's result must have type prop: " ^ name, 0, []) |
|
1701 |
else |
|
52487
48bc24467008
backout dedd7952a62c: static "proofs" value within theory prevents later inferencing with different configuration;
wenzelm
parents:
52470
diff
changeset
|
1702 |
let val (ora, prf) = Proofterm.oracle_proof name prop in |
32059
7991cdf10a54
support for arbitrarity nested future proofs -- replaced crude order by explicit normalization (which might loop for bad dependencies);
wenzelm
parents:
32035
diff
changeset
|
1703 |
Thm (make_deriv [] [ora] [] prf, |
52788 | 1704 |
{thy = Theory.merge (thy1, thy2), |
28804
5d3b1df16353
refined notion of derivation, consiting of promises and proof_body;
wenzelm
parents:
28675
diff
changeset
|
1705 |
tags = [], |
5d3b1df16353
refined notion of derivation, consiting of promises and proof_body;
wenzelm
parents:
28675
diff
changeset
|
1706 |
maxidx = maxidx, |
5d3b1df16353
refined notion of derivation, consiting of promises and proof_body;
wenzelm
parents:
28675
diff
changeset
|
1707 |
shyps = sorts, |
5d3b1df16353
refined notion of derivation, consiting of promises and proof_body;
wenzelm
parents:
28675
diff
changeset
|
1708 |
hyps = [], |
5d3b1df16353
refined notion of derivation, consiting of promises and proof_body;
wenzelm
parents:
28675
diff
changeset
|
1709 |
tpairs = [], |
5d3b1df16353
refined notion of derivation, consiting of promises and proof_body;
wenzelm
parents:
28675
diff
changeset
|
1710 |
prop = prop}) |
5d3b1df16353
refined notion of derivation, consiting of promises and proof_body;
wenzelm
parents:
28675
diff
changeset
|
1711 |
end |
3812 | 1712 |
end; |
1713 |
||
32590
95f4f08f950f
replaced opaque signature matching by plain old abstype (again, cf. ac4498f95d1c) -- this recovers pretty printing in SML/NJ and Poly/ML 5.3;
wenzelm
parents:
32198
diff
changeset
|
1714 |
end; |
95f4f08f950f
replaced opaque signature matching by plain old abstype (again, cf. ac4498f95d1c) -- this recovers pretty printing in SML/NJ and Poly/ML 5.3;
wenzelm
parents:
32198
diff
changeset
|
1715 |
end; |
95f4f08f950f
replaced opaque signature matching by plain old abstype (again, cf. ac4498f95d1c) -- this recovers pretty printing in SML/NJ and Poly/ML 5.3;
wenzelm
parents:
32198
diff
changeset
|
1716 |
end; |
95f4f08f950f
replaced opaque signature matching by plain old abstype (again, cf. ac4498f95d1c) -- this recovers pretty printing in SML/NJ and Poly/ML 5.3;
wenzelm
parents:
32198
diff
changeset
|
1717 |
|
28290 | 1718 |
|
1719 |
(* authentic derivation names *) |
|
1720 |
||
33522 | 1721 |
structure Oracles = Theory_Data |
28290 | 1722 |
( |
33095
bbd52d2f8696
renamed NameSpace to Name_Space -- also to emphasize its subtle change in semantics;
wenzelm
parents:
33092
diff
changeset
|
1723 |
type T = unit Name_Space.table; |
33159 | 1724 |
val empty : T = Name_Space.empty_table "oracle"; |
28290 | 1725 |
val extend = I; |
33522 | 1726 |
fun merge data : T = Name_Space.merge_tables data; |
28290 | 1727 |
); |
1728 |
||
59917
9830c944670f
more uniform "verbose" option to print name space;
wenzelm
parents:
59884
diff
changeset
|
1729 |
fun extern_oracles verbose ctxt = |
9830c944670f
more uniform "verbose" option to print name space;
wenzelm
parents:
59884
diff
changeset
|
1730 |
map #1 (Name_Space.markup_table verbose ctxt (Oracles.get (Proof_Context.theory_of ctxt))); |
28290 | 1731 |
|
30288
a32700e45ab3
Thm.add_oracle interface: replaced old bstring by binding;
wenzelm
parents:
29636
diff
changeset
|
1732 |
fun add_oracle (b, oracle) thy = |
28290 | 1733 |
let |
47005
421760a1efe7
maintain generic context naming in structure Name_Space (NB: empty = default_naming, init = local_naming);
wenzelm
parents:
46497
diff
changeset
|
1734 |
val (name, tab') = Name_Space.define (Context.Theory thy) true (b, ()) (Oracles.get thy); |
30288
a32700e45ab3
Thm.add_oracle interface: replaced old bstring by binding;
wenzelm
parents:
29636
diff
changeset
|
1735 |
val thy' = Oracles.put tab' thy; |
52788 | 1736 |
in ((name, invoke_oracle thy' name oracle), thy') end; |
28290 | 1737 |
|
0 | 1738 |
end; |
1503 | 1739 |
|
32104 | 1740 |
structure Basic_Thm: BASIC_THM = Thm; |
1741 |
open Basic_Thm; |