author | wenzelm |
Wed, 11 Aug 2010 17:37:04 +0200 | |
changeset 38333 | 3f4fadad9497 |
parent 38218 | 1408f753bd75 |
child 38721 | ca8b14fa0d0d |
permissions | -rw-r--r-- |
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(* Title: Pure/Isar/proof.ML |
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Author: Markus Wenzel, TU Muenchen |
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The Isar/VM proof language interpreter: maintains a structured flow of |
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context elements, goals, refinements, and facts. |
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*) |
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signature PROOF = |
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sig |
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type context = Proof.context |
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type method = Method.method |
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type state |
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val init: context -> state |
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val level: state -> int |
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val assert_bottom: bool -> state -> state |
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val context_of: state -> context |
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val theory_of: state -> theory |
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val map_context: (context -> context) -> state -> state |
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val map_contexts: (context -> context) -> state -> state |
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val propagate_ml_env: state -> state |
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val bind_terms: (indexname * term option) list -> state -> state |
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val put_thms: bool -> string * thm list option -> state -> state |
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val the_facts: state -> thm list |
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val the_fact: state -> thm |
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val put_facts: thm list option -> state -> state |
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val assert_forward: state -> state |
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val assert_chain: state -> state |
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val assert_forward_or_chain: state -> state |
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val assert_backward: state -> state |
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val assert_no_chain: state -> state |
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val enter_forward: state -> state |
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val goal_message: (unit -> Pretty.T) -> state -> state |
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val show_main_goal: bool Unsynchronized.ref |
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val verbose: bool Unsynchronized.ref |
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val pretty_state: int -> state -> Pretty.T list |
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val pretty_goals: bool -> state -> Pretty.T list |
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val refine: Method.text -> state -> state Seq.seq |
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val refine_end: Method.text -> state -> state Seq.seq |
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val refine_insert: thm list -> state -> state |
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val goal_tac: thm -> int -> tactic |
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val refine_goals: (context -> thm -> unit) -> context -> thm list -> state -> state Seq.seq |
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val raw_goal: state -> {context: context, facts: thm list, goal: thm} |
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val goal: state -> {context: context, facts: thm list, goal: thm} |
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val simple_goal: state -> {context: context, goal: thm} |
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val let_bind: (term list * term) list -> state -> state |
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val let_bind_cmd: (string list * string) list -> state -> state |
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val write: Syntax.mode -> (term * mixfix) list -> state -> state |
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val write_cmd: Syntax.mode -> (string * mixfix) list -> state -> state |
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val fix: (binding * typ option * mixfix) list -> state -> state |
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val fix_cmd: (binding * string option * mixfix) list -> state -> state |
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val assm: Assumption.export -> |
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(Thm.binding * (term * term list) list) list -> state -> state |
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val assm_cmd: Assumption.export -> |
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type Attrib.binding abbreviates Name.binding without attributes;
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(Attrib.binding * (string * string list) list) list -> state -> state |
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val assume: (Thm.binding * (term * term list) list) list -> state -> state |
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val assume_cmd: (Attrib.binding * (string * string list) list) list -> state -> state |
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val presume: (Thm.binding * (term * term list) list) list -> state -> state |
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val presume_cmd: (Attrib.binding * (string * string list) list) list -> state -> state |
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val def: (Thm.binding * ((binding * mixfix) * (term * term list))) list -> state -> state |
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val def_cmd: (Attrib.binding * ((binding * mixfix) * (string * string list))) list -> state -> state |
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val chain: state -> state |
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val chain_facts: thm list -> state -> state |
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val note_thmss: (Thm.binding * (thm list * attribute list) list) list -> state -> state |
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val note_thmss_cmd: (Attrib.binding * (Facts.ref * Attrib.src list) list) list -> state -> state |
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val from_thmss: ((thm list * attribute list) list) list -> state -> state |
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val from_thmss_cmd: ((Facts.ref * Attrib.src list) list) list -> state -> state |
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val with_thmss: ((thm list * attribute list) list) list -> state -> state |
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val with_thmss_cmd: ((Facts.ref * Attrib.src list) list) list -> state -> state |
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val using: ((thm list * attribute list) list) list -> state -> state |
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val using_cmd: ((Facts.ref * Attrib.src list) list) list -> state -> state |
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val unfolding: ((thm list * attribute list) list) list -> state -> state |
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val unfolding_cmd: ((Facts.ref * Attrib.src list) list) list -> state -> state |
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val invoke_case: string * string option list * attribute list -> state -> state |
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val invoke_case_cmd: string * string option list * Attrib.src list -> state -> state |
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val begin_block: state -> state |
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val next_block: state -> state |
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val end_block: state -> state |
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val proof: Method.text option -> state -> state Seq.seq |
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val defer: int option -> state -> state Seq.seq |
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val prefer: int -> state -> state Seq.seq |
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val apply: Method.text -> state -> state Seq.seq |
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val apply_end: Method.text -> state -> state Seq.seq |
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val local_goal: (context -> ((string * string) * (string * thm list) list) -> unit) -> |
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(theory -> 'a -> attribute) -> |
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(context * 'b list -> context * (term list list * (context -> context))) -> |
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string -> Method.text option -> (thm list list -> state -> state) -> |
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((binding * 'a list) * 'b) list -> state -> state |
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val local_qed: Method.text option * bool -> state -> state |
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val theorem: Method.text option -> (thm list list -> context -> context) -> |
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(term * term list) list list -> context -> state |
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val theorem_cmd: Method.text option -> (thm list list -> context -> context) -> |
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(string * string list) list list -> context -> state |
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val global_qed: Method.text option * bool -> state -> context |
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val local_terminal_proof: Method.text * Method.text option -> state -> state |
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val local_default_proof: state -> state |
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val local_immediate_proof: state -> state |
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val local_skip_proof: bool -> state -> state |
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val local_done_proof: state -> state |
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val global_terminal_proof: Method.text * Method.text option -> state -> context |
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val global_default_proof: state -> context |
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val global_immediate_proof: state -> context |
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val global_skip_proof: bool -> state -> context |
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val global_done_proof: state -> context |
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val have: Method.text option -> (thm list list -> state -> state) -> |
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(Thm.binding * (term * term list) list) list -> bool -> state -> state |
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val have_cmd: Method.text option -> (thm list list -> state -> state) -> |
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type Attrib.binding abbreviates Name.binding without attributes;
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(Attrib.binding * (string * string list) list) list -> bool -> state -> state |
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val show: Method.text option -> (thm list list -> state -> state) -> |
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(Thm.binding * (term * term list) list) list -> bool -> state -> state |
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val show_cmd: Method.text option -> (thm list list -> state -> state) -> |
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type Attrib.binding abbreviates Name.binding without attributes;
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(Attrib.binding * (string * string list) list) list -> bool -> state -> state |
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val schematic_goal: state -> bool |
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val is_relevant: state -> bool |
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val local_future_proof: (state -> ('a * state) Future.future) -> |
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state -> 'a Future.future * state |
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val global_future_proof: (state -> ('a * Proof.context) Future.future) -> |
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state -> 'a Future.future * context |
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val local_future_terminal_proof: Method.text * Method.text option -> bool -> state -> state |
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val global_future_terminal_proof: Method.text * Method.text option -> bool -> state -> context |
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end; |
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structure Proof: PROOF = |
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struct |
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type context = Proof.context; |
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type method = Method.method; |
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(** proof state **) |
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(* datatype state *) |
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datatype mode = Forward | Chain | Backward; |
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datatype state = |
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State of node Stack.T |
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and node = |
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Node of |
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{context: context, |
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facts: thm list option, |
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mode: mode, |
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goal: goal option} |
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and goal = |
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Goal of |
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{statement: (string * Position.T) * term list list * term, |
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(*goal kind and statement (starting with vars), initial proposition*) |
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messages: (unit -> Pretty.T) list, (*persistent messages (hints etc.)*) |
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using: thm list, (*goal facts*) |
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goal: thm, (*subgoals ==> statement*) |
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before_qed: Method.text option, |
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after_qed: |
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(thm list list -> state -> state) * |
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(thm list list -> context -> context)}; |
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fun make_goal (statement, messages, using, goal, before_qed, after_qed) = |
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Goal {statement = statement, messages = messages, using = using, goal = goal, |
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before_qed = before_qed, after_qed = after_qed}; |
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fun make_node (context, facts, mode, goal) = |
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Node {context = context, facts = facts, mode = mode, goal = goal}; |
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fun map_node f (Node {context, facts, mode, goal}) = |
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make_node (f (context, facts, mode, goal)); |
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val init_context = |
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ProofContext.set_stmt true #> |
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ProofContext.map_naming (K ProofContext.local_naming); |
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fun init ctxt = |
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State (Stack.init (make_node (init_context ctxt, NONE, Forward, NONE))); |
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fun current (State st) = Stack.top st |> (fn Node node => node); |
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fun map_current f (State st) = State (Stack.map_top (map_node f) st); |
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fun map_all f (State st) = State (Stack.map_all (map_node f) st); |
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(** basic proof state operations **) |
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(* block structure *) |
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fun open_block (State st) = State (Stack.push st); |
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fun close_block (State st) = State (Stack.pop st) |
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handle Empty => error "Unbalanced block parentheses"; |
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fun level (State st) = Stack.level st; |
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fun assert_bottom b state = |
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let val b' = (level state <= 2) in |
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if b andalso not b' then error "Not at bottom of proof!" |
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else if not b andalso b' then error "Already at bottom of proof!" |
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else state |
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end; |
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(* context *) |
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val context_of = #context o current; |
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val theory_of = ProofContext.theory_of o context_of; |
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fun map_context f = |
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map_current (fn (ctxt, facts, mode, goal) => (f ctxt, facts, mode, goal)); |
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fun map_context_result f state = |
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f (context_of state) ||> (fn ctxt => map_context (K ctxt) state); |
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fun map_contexts f = map_all (fn (ctxt, facts, mode, goal) => (f ctxt, facts, mode, goal)); |
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fun propagate_ml_env state = map_contexts |
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wenzelm
parents:
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diff
changeset
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(Context.proof_map (ML_Env.inherit (Context.Proof (context_of state)))) state; |
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val bind_terms = map_context o ProofContext.bind_terms; |
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val put_thms = map_context oo ProofContext.put_thms; |
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(* facts *) |
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val get_facts = #facts o current; |
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fun the_facts state = |
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(case get_facts state of SOME facts => facts |
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| NONE => error "No current facts available"); |
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fun the_fact state = |
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(case the_facts state of [thm] => thm |
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| _ => error "Single theorem expected"); |
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fun put_facts facts = |
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map_current (fn (ctxt, _, mode, goal) => (ctxt, facts, mode, goal)) #> |
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put_thms true (Auto_Bind.thisN, facts); |
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|
17359 | 233 |
fun these_factss more_facts (named_factss, state) = |
19482
9f11af8f7ef9
tuned basic list operators (flat, maps, map_filter);
wenzelm
parents:
19475
diff
changeset
|
234 |
(named_factss, state |> put_facts (SOME (maps snd named_factss @ more_facts))); |
5820 | 235 |
|
17359 | 236 |
fun export_facts inner outer = |
237 |
(case get_facts inner of |
|
20309 | 238 |
NONE => put_facts NONE outer |
17359 | 239 |
| SOME thms => |
240 |
thms |
|
20309 | 241 |
|> ProofContext.export (context_of inner) (context_of outer) |
242 |
|> (fn ths => put_facts (SOME ths) outer)); |
|
5820 | 243 |
|
244 |
||
245 |
(* mode *) |
|
246 |
||
17359 | 247 |
val get_mode = #mode o current; |
5820 | 248 |
fun put_mode mode = map_current (fn (ctxt, facts, _, goal) => (ctxt, facts, mode, goal)); |
249 |
||
17359 | 250 |
val mode_name = (fn Forward => "state" | Chain => "chain" | Backward => "prove"); |
5820 | 251 |
|
252 |
fun assert_mode pred state = |
|
253 |
let val mode = get_mode state in |
|
254 |
if pred mode then state |
|
18678 | 255 |
else error ("Illegal application of proof command in " ^ quote (mode_name mode) ^ " mode") |
5820 | 256 |
end; |
257 |
||
19308 | 258 |
val assert_forward = assert_mode (fn mode => mode = Forward); |
259 |
val assert_chain = assert_mode (fn mode => mode = Chain); |
|
260 |
val assert_forward_or_chain = assert_mode (fn mode => mode = Forward orelse mode = Chain); |
|
261 |
val assert_backward = assert_mode (fn mode => mode = Backward); |
|
262 |
val assert_no_chain = assert_mode (fn mode => mode <> Chain); |
|
5820 | 263 |
|
17359 | 264 |
val enter_forward = put_mode Forward; |
265 |
val enter_chain = put_mode Chain; |
|
266 |
val enter_backward = put_mode Backward; |
|
5820 | 267 |
|
17359 | 268 |
|
269 |
(* current goal *) |
|
270 |
||
271 |
fun current_goal state = |
|
272 |
(case current state of |
|
273 |
{context, goal = SOME (Goal goal), ...} => (context, goal) |
|
18678 | 274 |
| _ => error "No current goal!"); |
5820 | 275 |
|
17359 | 276 |
fun assert_current_goal g state = |
277 |
let val g' = can current_goal state in |
|
18678 | 278 |
if g andalso not g' then error "No goal in this block!" |
279 |
else if not g andalso g' then error "Goal present in this block!" |
|
17359 | 280 |
else state |
281 |
end; |
|
6776 | 282 |
|
17359 | 283 |
fun put_goal goal = map_current (fn (ctxt, using, mode, _) => (ctxt, using, mode, goal)); |
284 |
||
17859 | 285 |
val before_qed = #before_qed o #2 o current_goal; |
286 |
||
17359 | 287 |
|
288 |
(* nested goal *) |
|
5820 | 289 |
|
17359 | 290 |
fun map_goal f g (State (Node {context, facts, mode, goal = SOME goal}, nodes)) = |
291 |
let |
|
24543 | 292 |
val Goal {statement, messages, using, goal, before_qed, after_qed} = goal; |
293 |
val goal' = make_goal (g (statement, messages, using, goal, before_qed, after_qed)); |
|
17359 | 294 |
in State (make_node (f context, facts, mode, SOME goal'), nodes) end |
295 |
| map_goal f g (State (nd, node :: nodes)) = |
|
296 |
let val State (node', nodes') = map_goal f g (State (node, nodes)) |
|
297 |
in map_context f (State (nd, node' :: nodes')) end |
|
298 |
| map_goal _ _ state = state; |
|
5820 | 299 |
|
24556 | 300 |
fun set_goal goal = map_goal I (fn (statement, _, using, _, before_qed, after_qed) => |
301 |
(statement, [], using, goal, before_qed, after_qed)); |
|
19188 | 302 |
|
24543 | 303 |
fun goal_message msg = map_goal I (fn (statement, messages, using, goal, before_qed, after_qed) => |
304 |
(statement, msg :: messages, using, goal, before_qed, after_qed)); |
|
305 |
||
24556 | 306 |
fun using_facts using = map_goal I (fn (statement, _, _, goal, before_qed, after_qed) => |
307 |
(statement, [], using, goal, before_qed, after_qed)); |
|
17359 | 308 |
|
309 |
local |
|
310 |
fun find i state = |
|
311 |
(case try current_goal state of |
|
312 |
SOME (ctxt, goal) => (ctxt, (i, goal)) |
|
18678 | 313 |
| NONE => find (i + 1) (close_block state handle ERROR _ => error "No goal present")); |
17359 | 314 |
in val find_goal = find 0 end; |
315 |
||
316 |
fun get_goal state = |
|
317 |
let val (ctxt, (_, {using, goal, ...})) = find_goal state |
|
318 |
in (ctxt, (using, goal)) end; |
|
5820 | 319 |
|
320 |
||
321 |
||
12423 | 322 |
(** pretty_state **) |
5820 | 323 |
|
32738 | 324 |
val show_main_goal = Unsynchronized.ref false; |
16539 | 325 |
val verbose = ProofContext.verbose; |
13698 | 326 |
|
15531 | 327 |
fun pretty_facts _ _ NONE = [] |
328 |
| pretty_facts s ctxt (SOME ths) = |
|
32091
30e2ffbba718
proper context for Display.pretty_thm etc. or old-style versions Display.pretty_thm_global, Display.pretty_thm_without_context etc.;
wenzelm
parents:
32089
diff
changeset
|
329 |
[Pretty.big_list (s ^ "this:") (map (Display.pretty_thm ctxt) ths), Pretty.str ""]; |
6756 | 330 |
|
17359 | 331 |
fun pretty_state nr state = |
5820 | 332 |
let |
17359 | 333 |
val {context, facts, mode, goal = _} = current state; |
5820 | 334 |
|
335 |
fun levels_up 0 = "" |
|
17359 | 336 |
| levels_up 1 = "1 level up" |
337 |
| levels_up i = string_of_int i ^ " levels up"; |
|
5820 | 338 |
|
11556 | 339 |
fun subgoals 0 = "" |
17359 | 340 |
| subgoals 1 = "1 subgoal" |
341 |
| subgoals n = string_of_int n ^ " subgoals"; |
|
342 |
||
343 |
fun description strs = |
|
28375 | 344 |
(case filter_out (fn s => s = "") strs of [] => "" |
17359 | 345 |
| strs' => enclose " (" ")" (commas strs')); |
12146 | 346 |
|
29416 | 347 |
fun prt_goal (SOME (ctxt, (i, |
348 |
{statement = ((_, pos), _, _), messages, using, goal, before_qed = _, after_qed = _}))) = |
|
17359 | 349 |
pretty_facts "using " ctxt |
350 |
(if mode <> Backward orelse null using then NONE else SOME using) @ |
|
21442 | 351 |
[Pretty.str ("goal" ^ |
352 |
description [levels_up (i div 2), subgoals (Thm.nprems_of goal)] ^ ":")] @ |
|
32187 | 353 |
Goal_Display.pretty_goals ctxt |
32167
d32817dda0e6
Display_Goal.pretty_goals: always Markup.subgoal, clarified options;
wenzelm
parents:
32145
diff
changeset
|
354 |
{total = true, main = ! show_main_goal, maxgoals = ! Display.goals_limit} goal @ |
25958 | 355 |
(map (fn msg => Position.setmp_thread_data pos msg ()) (rev messages)) |
17359 | 356 |
| prt_goal NONE = []; |
6848 | 357 |
|
17359 | 358 |
val prt_ctxt = |
359 |
if ! verbose orelse mode = Forward then ProofContext.pretty_context context |
|
18670 | 360 |
else if mode = Backward then ProofContext.pretty_ctxt context |
7575 | 361 |
else []; |
17359 | 362 |
in |
363 |
[Pretty.str ("proof (" ^ mode_name mode ^ "): step " ^ string_of_int nr ^ |
|
364 |
(if ! verbose then ", depth " ^ string_of_int (level state div 2 - 1) else "")), |
|
365 |
Pretty.str ""] @ |
|
366 |
(if null prt_ctxt then [] else prt_ctxt @ [Pretty.str ""]) @ |
|
367 |
(if ! verbose orelse mode = Forward then |
|
368 |
pretty_facts "" context facts @ prt_goal (try find_goal state) |
|
369 |
else if mode = Chain then pretty_facts "picking " context facts |
|
370 |
else prt_goal (try find_goal state)) |
|
371 |
end; |
|
5820 | 372 |
|
12085 | 373 |
fun pretty_goals main state = |
32167
d32817dda0e6
Display_Goal.pretty_goals: always Markup.subgoal, clarified options;
wenzelm
parents:
32145
diff
changeset
|
374 |
let val (ctxt, (_, goal)) = get_goal state in |
32187 | 375 |
Goal_Display.pretty_goals ctxt |
32167
d32817dda0e6
Display_Goal.pretty_goals: always Markup.subgoal, clarified options;
wenzelm
parents:
32145
diff
changeset
|
376 |
{total = false, main = main, maxgoals = ! Display.goals_limit} goal |
d32817dda0e6
Display_Goal.pretty_goals: always Markup.subgoal, clarified options;
wenzelm
parents:
32145
diff
changeset
|
377 |
end; |
10320 | 378 |
|
5820 | 379 |
|
380 |
||
381 |
(** proof steps **) |
|
382 |
||
17359 | 383 |
(* refine via method *) |
5820 | 384 |
|
8234 | 385 |
local |
386 |
||
16146 | 387 |
fun goalN i = "goal" ^ string_of_int i; |
388 |
fun goals st = map goalN (1 upto Thm.nprems_of st); |
|
389 |
||
390 |
fun no_goal_cases st = map (rpair NONE) (goals st); |
|
391 |
||
392 |
fun goal_cases st = |
|
34916
f625d8d6fcf3
Eliminated is_open option of Rule_Cases.make_nested/make_common;
berghofe
parents:
34239
diff
changeset
|
393 |
Rule_Cases.make_common (Thm.theory_of_thm st, Thm.prop_of st) (map (rpair []) (goals st)); |
16146 | 394 |
|
32193
c314b4836031
basic method application: avoid Position.setmp_thread_data_seq, which destroys transaction context;
wenzelm
parents:
32187
diff
changeset
|
395 |
fun apply_method current_context meth state = |
6848 | 396 |
let |
24556 | 397 |
val (goal_ctxt, (_, {statement, messages = _, using, goal, before_qed, after_qed})) = |
24543 | 398 |
find_goal state; |
25958 | 399 |
val ctxt = if current_context then context_of state else goal_ctxt; |
16146 | 400 |
in |
32193
c314b4836031
basic method application: avoid Position.setmp_thread_data_seq, which destroys transaction context;
wenzelm
parents:
32187
diff
changeset
|
401 |
Method.apply meth ctxt using goal |> Seq.map (fn (meth_cases, goal') => |
6848 | 402 |
state |
16146 | 403 |
|> map_goal |
18475 | 404 |
(ProofContext.add_cases false (no_goal_cases goal @ goal_cases goal') #> |
405 |
ProofContext.add_cases true meth_cases) |
|
24556 | 406 |
(K (statement, [], using, goal', before_qed, after_qed))) |
16146 | 407 |
end; |
5820 | 408 |
|
19188 | 409 |
fun select_goals n meth state = |
19224 | 410 |
state |
411 |
|> (#2 o #2 o get_goal) |
|
21687 | 412 |
|> ALLGOALS Goal.conjunction_tac |
19224 | 413 |
|> Seq.maps (fn goal => |
19188 | 414 |
state |
21687 | 415 |
|> Seq.lift set_goal (Goal.extract 1 n goal |> Seq.maps (Goal.conjunction_tac 1)) |
19188 | 416 |
|> Seq.maps meth |
417 |
|> Seq.maps (fn state' => state' |
|
418 |
|> Seq.lift set_goal (Goal.retrofit 1 n (#2 (#2 (get_goal state'))) goal)) |
|
32193
c314b4836031
basic method application: avoid Position.setmp_thread_data_seq, which destroys transaction context;
wenzelm
parents:
32187
diff
changeset
|
419 |
|> Seq.maps (apply_method true (K Method.succeed))); |
19188 | 420 |
|
17112 | 421 |
fun apply_text cc text state = |
422 |
let |
|
423 |
val thy = theory_of state; |
|
424 |
||
32193
c314b4836031
basic method application: avoid Position.setmp_thread_data_seq, which destroys transaction context;
wenzelm
parents:
32187
diff
changeset
|
425 |
fun eval (Method.Basic m) = apply_method cc m |
c314b4836031
basic method application: avoid Position.setmp_thread_data_seq, which destroys transaction context;
wenzelm
parents:
32187
diff
changeset
|
426 |
| eval (Method.Source src) = apply_method cc (Method.method thy src) |
c314b4836031
basic method application: avoid Position.setmp_thread_data_seq, which destroys transaction context;
wenzelm
parents:
32187
diff
changeset
|
427 |
| eval (Method.Source_i src) = apply_method cc (Method.method_i thy src) |
17112 | 428 |
| eval (Method.Then txts) = Seq.EVERY (map eval txts) |
429 |
| eval (Method.Orelse txts) = Seq.FIRST (map eval txts) |
|
430 |
| eval (Method.Try txt) = Seq.TRY (eval txt) |
|
19188 | 431 |
| eval (Method.Repeat1 txt) = Seq.REPEAT1 (eval txt) |
432 |
| eval (Method.SelectGoals (n, txt)) = select_goals n (eval txt); |
|
17112 | 433 |
in eval text state end; |
434 |
||
8234 | 435 |
in |
436 |
||
17112 | 437 |
val refine = apply_text true; |
438 |
val refine_end = apply_text false; |
|
32856
92d9555ac790
clarified Proof.refine_insert -- always "refine" to apply standard method treatment (of conjunctions);
wenzelm
parents:
32786
diff
changeset
|
439 |
fun refine_insert ths = Seq.hd o refine (Method.Basic (K (Method.insert ths))); |
18908 | 440 |
|
8234 | 441 |
end; |
442 |
||
5820 | 443 |
|
17359 | 444 |
(* refine via sub-proof *) |
445 |
||
30557
a28d83e903ce
goal_tac: finish marked assumptions from left to right -- corresponds better with the strategy of etac, with significant performance gains in some situations;
wenzelm
parents:
30510
diff
changeset
|
446 |
fun finish_tac 0 = K all_tac |
a28d83e903ce
goal_tac: finish marked assumptions from left to right -- corresponds better with the strategy of etac, with significant performance gains in some situations;
wenzelm
parents:
30510
diff
changeset
|
447 |
| finish_tac n = |
a28d83e903ce
goal_tac: finish marked assumptions from left to right -- corresponds better with the strategy of etac, with significant performance gains in some situations;
wenzelm
parents:
30510
diff
changeset
|
448 |
Goal.norm_hhf_tac THEN' |
a28d83e903ce
goal_tac: finish marked assumptions from left to right -- corresponds better with the strategy of etac, with significant performance gains in some situations;
wenzelm
parents:
30510
diff
changeset
|
449 |
SUBGOAL (fn (goal, i) => |
a28d83e903ce
goal_tac: finish marked assumptions from left to right -- corresponds better with the strategy of etac, with significant performance gains in some situations;
wenzelm
parents:
30510
diff
changeset
|
450 |
if can Logic.unprotect (Logic.strip_assums_concl goal) then |
a28d83e903ce
goal_tac: finish marked assumptions from left to right -- corresponds better with the strategy of etac, with significant performance gains in some situations;
wenzelm
parents:
30510
diff
changeset
|
451 |
Tactic.etac Drule.protectI i THEN finish_tac (n - 1) i |
a28d83e903ce
goal_tac: finish marked assumptions from left to right -- corresponds better with the strategy of etac, with significant performance gains in some situations;
wenzelm
parents:
30510
diff
changeset
|
452 |
else finish_tac (n - 1) (i + 1)); |
a28d83e903ce
goal_tac: finish marked assumptions from left to right -- corresponds better with the strategy of etac, with significant performance gains in some situations;
wenzelm
parents:
30510
diff
changeset
|
453 |
|
20208 | 454 |
fun goal_tac rule = |
30557
a28d83e903ce
goal_tac: finish marked assumptions from left to right -- corresponds better with the strategy of etac, with significant performance gains in some situations;
wenzelm
parents:
30510
diff
changeset
|
455 |
Goal.norm_hhf_tac THEN' |
a28d83e903ce
goal_tac: finish marked assumptions from left to right -- corresponds better with the strategy of etac, with significant performance gains in some situations;
wenzelm
parents:
30510
diff
changeset
|
456 |
Tactic.rtac rule THEN' |
a28d83e903ce
goal_tac: finish marked assumptions from left to right -- corresponds better with the strategy of etac, with significant performance gains in some situations;
wenzelm
parents:
30510
diff
changeset
|
457 |
finish_tac (Thm.nprems_of rule); |
11816 | 458 |
|
19915 | 459 |
fun refine_goals print_rule inner raw_rules state = |
460 |
let |
|
461 |
val (outer, (_, goal)) = get_goal state; |
|
20208 | 462 |
fun refine rule st = (print_rule outer rule; FINDGOAL (goal_tac rule) st); |
19915 | 463 |
in |
464 |
raw_rules |
|
20309 | 465 |
|> ProofContext.goal_export inner outer |
466 |
|> (fn rules => Seq.lift set_goal (EVERY (map refine rules) goal) state) |
|
19915 | 467 |
end; |
17359 | 468 |
|
6932 | 469 |
|
17359 | 470 |
(* conclude_goal *) |
6932 | 471 |
|
28627
63663cfa297c
conclude_goal: precise goal context, include all sorts from context into statement, check shyps of result;
wenzelm
parents:
28458
diff
changeset
|
472 |
fun conclude_goal ctxt goal propss = |
5820 | 473 |
let |
28627
63663cfa297c
conclude_goal: precise goal context, include all sorts from context into statement, check shyps of result;
wenzelm
parents:
28458
diff
changeset
|
474 |
val thy = ProofContext.theory_of ctxt; |
24920 | 475 |
val string_of_term = Syntax.string_of_term ctxt; |
32091
30e2ffbba718
proper context for Display.pretty_thm etc. or old-style versions Display.pretty_thm_global, Display.pretty_thm_without_context etc.;
wenzelm
parents:
32089
diff
changeset
|
476 |
val string_of_thm = Display.string_of_thm ctxt; |
5820 | 477 |
|
17359 | 478 |
val ngoals = Thm.nprems_of goal; |
19774
5fe7731d0836
allow non-trivial schematic goals (via embedded term vars);
wenzelm
parents:
19585
diff
changeset
|
479 |
val _ = ngoals = 0 orelse error (Pretty.string_of (Pretty.chunks |
32187 | 480 |
(Goal_Display.pretty_goals ctxt |
32167
d32817dda0e6
Display_Goal.pretty_goals: always Markup.subgoal, clarified options;
wenzelm
parents:
32145
diff
changeset
|
481 |
{total = true, main = ! show_main_goal, maxgoals = ! Display.goals_limit} goal @ |
23639 | 482 |
[Pretty.str (string_of_int ngoals ^ " unsolved goal(s)!")]))); |
20224
9c40a144ee0e
moved basic assumption operations from structure ProofContext to Assumption;
wenzelm
parents:
20208
diff
changeset
|
483 |
|
9c40a144ee0e
moved basic assumption operations from structure ProofContext to Assumption;
wenzelm
parents:
20208
diff
changeset
|
484 |
val extra_hyps = Assumption.extra_hyps ctxt goal; |
9c40a144ee0e
moved basic assumption operations from structure ProofContext to Assumption;
wenzelm
parents:
20208
diff
changeset
|
485 |
val _ = null extra_hyps orelse |
9c40a144ee0e
moved basic assumption operations from structure ProofContext to Assumption;
wenzelm
parents:
20208
diff
changeset
|
486 |
error ("Additional hypotheses:\n" ^ cat_lines (map string_of_term extra_hyps)); |
5820 | 487 |
|
23418 | 488 |
fun lost_structure () = error ("Lost goal structure:\n" ^ string_of_thm goal); |
489 |
||
23782
4dd0ba632e40
Proof terms for meta-conjunctions are now normalized before
berghofe
parents:
23639
diff
changeset
|
490 |
val th = Goal.conclude |
23806 | 491 |
(if length (flat propss) > 1 then Thm.norm_proof goal else goal) |
23782
4dd0ba632e40
Proof terms for meta-conjunctions are now normalized before
berghofe
parents:
23639
diff
changeset
|
492 |
handle THM _ => lost_structure (); |
23418 | 493 |
val goal_propss = filter_out null propss; |
494 |
val results = |
|
495 |
Conjunction.elim_balanced (length goal_propss) th |
|
496 |
|> map2 Conjunction.elim_balanced (map length goal_propss) |
|
497 |
handle THM _ => lost_structure (); |
|
498 |
val _ = Unify.matches_list thy (flat goal_propss) (map Thm.prop_of (flat results)) orelse |
|
19774
5fe7731d0836
allow non-trivial schematic goals (via embedded term vars);
wenzelm
parents:
19585
diff
changeset
|
499 |
error ("Proved a different theorem:\n" ^ string_of_thm th); |
28627
63663cfa297c
conclude_goal: precise goal context, include all sorts from context into statement, check shyps of result;
wenzelm
parents:
28458
diff
changeset
|
500 |
val _ = Thm.check_shyps (Variable.sorts_of ctxt) th; |
23418 | 501 |
|
502 |
fun recover_result ([] :: pss) thss = [] :: recover_result pss thss |
|
503 |
| recover_result (_ :: pss) (ths :: thss) = ths :: recover_result pss thss |
|
504 |
| recover_result [] [] = [] |
|
505 |
| recover_result _ _ = lost_structure (); |
|
506 |
in recover_result propss results end; |
|
5820 | 507 |
|
508 |
||
33288
bd3f30da7bc1
replaced slightly odd get_goal/flat_goal by explicit goal views that correspond to the usual method categories;
wenzelm
parents:
33165
diff
changeset
|
509 |
(* goal views -- corresponding to methods *) |
bd3f30da7bc1
replaced slightly odd get_goal/flat_goal by explicit goal views that correspond to the usual method categories;
wenzelm
parents:
33165
diff
changeset
|
510 |
|
bd3f30da7bc1
replaced slightly odd get_goal/flat_goal by explicit goal views that correspond to the usual method categories;
wenzelm
parents:
33165
diff
changeset
|
511 |
fun raw_goal state = |
bd3f30da7bc1
replaced slightly odd get_goal/flat_goal by explicit goal views that correspond to the usual method categories;
wenzelm
parents:
33165
diff
changeset
|
512 |
let val (ctxt, (facts, goal)) = get_goal state |
bd3f30da7bc1
replaced slightly odd get_goal/flat_goal by explicit goal views that correspond to the usual method categories;
wenzelm
parents:
33165
diff
changeset
|
513 |
in {context = ctxt, facts = facts, goal = goal} end; |
bd3f30da7bc1
replaced slightly odd get_goal/flat_goal by explicit goal views that correspond to the usual method categories;
wenzelm
parents:
33165
diff
changeset
|
514 |
|
bd3f30da7bc1
replaced slightly odd get_goal/flat_goal by explicit goal views that correspond to the usual method categories;
wenzelm
parents:
33165
diff
changeset
|
515 |
val goal = raw_goal o refine_insert []; |
bd3f30da7bc1
replaced slightly odd get_goal/flat_goal by explicit goal views that correspond to the usual method categories;
wenzelm
parents:
33165
diff
changeset
|
516 |
|
bd3f30da7bc1
replaced slightly odd get_goal/flat_goal by explicit goal views that correspond to the usual method categories;
wenzelm
parents:
33165
diff
changeset
|
517 |
fun simple_goal state = |
bd3f30da7bc1
replaced slightly odd get_goal/flat_goal by explicit goal views that correspond to the usual method categories;
wenzelm
parents:
33165
diff
changeset
|
518 |
let |
bd3f30da7bc1
replaced slightly odd get_goal/flat_goal by explicit goal views that correspond to the usual method categories;
wenzelm
parents:
33165
diff
changeset
|
519 |
val (_, (facts, _)) = get_goal state; |
bd3f30da7bc1
replaced slightly odd get_goal/flat_goal by explicit goal views that correspond to the usual method categories;
wenzelm
parents:
33165
diff
changeset
|
520 |
val (ctxt, (_, goal)) = get_goal (refine_insert facts state); |
bd3f30da7bc1
replaced slightly odd get_goal/flat_goal by explicit goal views that correspond to the usual method categories;
wenzelm
parents:
33165
diff
changeset
|
521 |
in {context = ctxt, goal = goal} end; |
bd3f30da7bc1
replaced slightly odd get_goal/flat_goal by explicit goal views that correspond to the usual method categories;
wenzelm
parents:
33165
diff
changeset
|
522 |
|
bd3f30da7bc1
replaced slightly odd get_goal/flat_goal by explicit goal views that correspond to the usual method categories;
wenzelm
parents:
33165
diff
changeset
|
523 |
|
5820 | 524 |
|
525 |
(*** structured proof commands ***) |
|
526 |
||
17112 | 527 |
(** context elements **) |
5820 | 528 |
|
36324 | 529 |
(* let bindings *) |
5820 | 530 |
|
16813 | 531 |
local |
532 |
||
17359 | 533 |
fun gen_bind bind args state = |
5820 | 534 |
state |
535 |
|> assert_forward |
|
36324 | 536 |
|> map_context (bind true args #> snd) |
17359 | 537 |
|> put_facts NONE; |
5820 | 538 |
|
16813 | 539 |
in |
540 |
||
36324 | 541 |
val let_bind = gen_bind ProofContext.match_bind_i; |
542 |
val let_bind_cmd = gen_bind ProofContext.match_bind; |
|
5820 | 543 |
|
16813 | 544 |
end; |
545 |
||
5820 | 546 |
|
36505
79c1d2bbe5a9
ProofContext.read_const: allow for type constraint (for fixed variable);
wenzelm
parents:
36354
diff
changeset
|
547 |
(* concrete syntax *) |
79c1d2bbe5a9
ProofContext.read_const: allow for type constraint (for fixed variable);
wenzelm
parents:
36354
diff
changeset
|
548 |
|
79c1d2bbe5a9
ProofContext.read_const: allow for type constraint (for fixed variable);
wenzelm
parents:
36354
diff
changeset
|
549 |
local |
79c1d2bbe5a9
ProofContext.read_const: allow for type constraint (for fixed variable);
wenzelm
parents:
36354
diff
changeset
|
550 |
|
36507
c966a1aab860
'write': actually observe the proof structure (like 'let' or 'fix');
wenzelm
parents:
36505
diff
changeset
|
551 |
fun gen_write prep_arg mode args = |
c966a1aab860
'write': actually observe the proof structure (like 'let' or 'fix');
wenzelm
parents:
36505
diff
changeset
|
552 |
assert_forward |
c966a1aab860
'write': actually observe the proof structure (like 'let' or 'fix');
wenzelm
parents:
36505
diff
changeset
|
553 |
#> map_context (fn ctxt => ctxt |> ProofContext.notation true mode (map (prep_arg ctxt) args)) |
c966a1aab860
'write': actually observe the proof structure (like 'let' or 'fix');
wenzelm
parents:
36505
diff
changeset
|
554 |
#> put_facts NONE; |
36505
79c1d2bbe5a9
ProofContext.read_const: allow for type constraint (for fixed variable);
wenzelm
parents:
36354
diff
changeset
|
555 |
|
79c1d2bbe5a9
ProofContext.read_const: allow for type constraint (for fixed variable);
wenzelm
parents:
36354
diff
changeset
|
556 |
in |
79c1d2bbe5a9
ProofContext.read_const: allow for type constraint (for fixed variable);
wenzelm
parents:
36354
diff
changeset
|
557 |
|
79c1d2bbe5a9
ProofContext.read_const: allow for type constraint (for fixed variable);
wenzelm
parents:
36354
diff
changeset
|
558 |
val write = gen_write (K I); |
79c1d2bbe5a9
ProofContext.read_const: allow for type constraint (for fixed variable);
wenzelm
parents:
36354
diff
changeset
|
559 |
|
79c1d2bbe5a9
ProofContext.read_const: allow for type constraint (for fixed variable);
wenzelm
parents:
36354
diff
changeset
|
560 |
val write_cmd = |
79c1d2bbe5a9
ProofContext.read_const: allow for type constraint (for fixed variable);
wenzelm
parents:
36354
diff
changeset
|
561 |
gen_write (fn ctxt => fn (c, mx) => |
79c1d2bbe5a9
ProofContext.read_const: allow for type constraint (for fixed variable);
wenzelm
parents:
36354
diff
changeset
|
562 |
(ProofContext.read_const ctxt false (Syntax.mixfixT mx) c, mx)); |
79c1d2bbe5a9
ProofContext.read_const: allow for type constraint (for fixed variable);
wenzelm
parents:
36354
diff
changeset
|
563 |
|
79c1d2bbe5a9
ProofContext.read_const: allow for type constraint (for fixed variable);
wenzelm
parents:
36354
diff
changeset
|
564 |
end; |
79c1d2bbe5a9
ProofContext.read_const: allow for type constraint (for fixed variable);
wenzelm
parents:
36354
diff
changeset
|
565 |
|
79c1d2bbe5a9
ProofContext.read_const: allow for type constraint (for fixed variable);
wenzelm
parents:
36354
diff
changeset
|
566 |
|
17359 | 567 |
(* fix *) |
9196 | 568 |
|
12714 | 569 |
local |
570 |
||
30763
6976521b4263
renamed ProofContext.add_fixes_i to ProofContext.add_fixes, eliminated obsolete external version;
wenzelm
parents:
30761
diff
changeset
|
571 |
fun gen_fix prep_vars args = |
17359 | 572 |
assert_forward |
30763
6976521b4263
renamed ProofContext.add_fixes_i to ProofContext.add_fixes, eliminated obsolete external version;
wenzelm
parents:
30761
diff
changeset
|
573 |
#> map_context (fn ctxt => snd (ProofContext.add_fixes (prep_vars ctxt args) ctxt)) |
17359 | 574 |
#> put_facts NONE; |
5820 | 575 |
|
16813 | 576 |
in |
577 |
||
36323
655e2d74de3a
modernized naming conventions of main Isar proof elements;
wenzelm
parents:
36322
diff
changeset
|
578 |
val fix = gen_fix (K I); |
655e2d74de3a
modernized naming conventions of main Isar proof elements;
wenzelm
parents:
36322
diff
changeset
|
579 |
val fix_cmd = gen_fix (fn ctxt => fn args => fst (ProofContext.read_vars args ctxt)); |
5820 | 580 |
|
16813 | 581 |
end; |
582 |
||
5820 | 583 |
|
17359 | 584 |
(* assume etc. *) |
5820 | 585 |
|
16813 | 586 |
local |
587 |
||
17112 | 588 |
fun gen_assume asm prep_att exp args state = |
5820 | 589 |
state |
590 |
|> assert_forward |
|
17112 | 591 |
|> map_context_result (asm exp (Attrib.map_specs (prep_att (theory_of state)) args)) |
17359 | 592 |
|> these_factss [] |> #2; |
6932 | 593 |
|
16813 | 594 |
in |
595 |
||
36323
655e2d74de3a
modernized naming conventions of main Isar proof elements;
wenzelm
parents:
36322
diff
changeset
|
596 |
val assm = gen_assume ProofContext.add_assms_i (K I); |
655e2d74de3a
modernized naming conventions of main Isar proof elements;
wenzelm
parents:
36322
diff
changeset
|
597 |
val assm_cmd = gen_assume ProofContext.add_assms Attrib.attribute; |
655e2d74de3a
modernized naming conventions of main Isar proof elements;
wenzelm
parents:
36322
diff
changeset
|
598 |
val assume = assm Assumption.assume_export; |
655e2d74de3a
modernized naming conventions of main Isar proof elements;
wenzelm
parents:
36322
diff
changeset
|
599 |
val assume_cmd = assm_cmd Assumption.assume_export; |
655e2d74de3a
modernized naming conventions of main Isar proof elements;
wenzelm
parents:
36322
diff
changeset
|
600 |
val presume = assm Assumption.presume_export; |
655e2d74de3a
modernized naming conventions of main Isar proof elements;
wenzelm
parents:
36322
diff
changeset
|
601 |
val presume_cmd = assm_cmd Assumption.presume_export; |
5820 | 602 |
|
16813 | 603 |
end; |
604 |
||
7271 | 605 |
|
17359 | 606 |
(* def *) |
11891 | 607 |
|
16813 | 608 |
local |
609 |
||
20913 | 610 |
fun gen_def prep_att prep_vars prep_binds args state = |
11891 | 611 |
let |
612 |
val _ = assert_forward state; |
|
17112 | 613 |
val thy = theory_of state; |
11891 | 614 |
|
20913 | 615 |
val (raw_name_atts, (raw_vars, raw_rhss)) = args |> split_list ||> split_list; |
616 |
val name_atts = map (apsnd (map (prep_att thy))) raw_name_atts; |
|
11891 | 617 |
in |
20913 | 618 |
state |
619 |
|> map_context_result (prep_vars (map (fn (x, mx) => (x, NONE, mx)) raw_vars)) |
|
620 |
|>> map (fn (x, _, mx) => (x, mx)) |
|
621 |
|-> (fn vars => |
|
622 |
map_context_result (prep_binds false (map swap raw_rhss)) |
|
35624 | 623 |
#-> (fn rhss => map_context_result (Local_Defs.add_defs (vars ~~ (name_atts ~~ rhss))))) |
20913 | 624 |
|-> (put_facts o SOME o map (#2 o #2)) |
11891 | 625 |
end; |
626 |
||
16813 | 627 |
in |
628 |
||
36323
655e2d74de3a
modernized naming conventions of main Isar proof elements;
wenzelm
parents:
36322
diff
changeset
|
629 |
val def = gen_def (K I) ProofContext.cert_vars ProofContext.match_bind_i; |
655e2d74de3a
modernized naming conventions of main Isar proof elements;
wenzelm
parents:
36322
diff
changeset
|
630 |
val def_cmd = gen_def Attrib.attribute ProofContext.read_vars ProofContext.match_bind; |
11891 | 631 |
|
16813 | 632 |
end; |
633 |
||
11891 | 634 |
|
8374 | 635 |
|
17112 | 636 |
(** facts **) |
5820 | 637 |
|
17359 | 638 |
(* chain *) |
5820 | 639 |
|
24011 | 640 |
fun clean_facts ctxt = |
24050 | 641 |
put_facts (SOME (filter_out Thm.is_dummy (the_facts ctxt))) ctxt; |
24011 | 642 |
|
17359 | 643 |
val chain = |
644 |
assert_forward |
|
24011 | 645 |
#> clean_facts |
17359 | 646 |
#> enter_chain; |
5820 | 647 |
|
17359 | 648 |
fun chain_facts facts = |
649 |
put_facts (SOME facts) |
|
650 |
#> chain; |
|
5820 | 651 |
|
652 |
||
17359 | 653 |
(* note etc. *) |
17112 | 654 |
|
28965 | 655 |
fun no_binding args = map (pair (Binding.empty, [])) args; |
17112 | 656 |
|
657 |
local |
|
658 |
||
30760
0fffc66b10d7
simplified references to facts, eliminated external note_thmss;
wenzelm
parents:
30757
diff
changeset
|
659 |
fun gen_thmss more_facts opt_chain opt_result prep_atts prep_fact args state = |
17112 | 660 |
state |
661 |
|> assert_forward |
|
30761
ac7570d80c3d
renamed ProofContext.note_thmss_i to ProofContext.note_thmss, eliminated obsolete external version;
wenzelm
parents:
30760
diff
changeset
|
662 |
|> map_context_result (ProofContext.note_thmss "" |
30760
0fffc66b10d7
simplified references to facts, eliminated external note_thmss;
wenzelm
parents:
30757
diff
changeset
|
663 |
(Attrib.map_facts_refs (prep_atts (theory_of state)) (prep_fact (context_of state)) args)) |
17112 | 664 |
|> these_factss (more_facts state) |
17359 | 665 |
||> opt_chain |
666 |
|> opt_result; |
|
17112 | 667 |
|
668 |
in |
|
669 |
||
36323
655e2d74de3a
modernized naming conventions of main Isar proof elements;
wenzelm
parents:
36322
diff
changeset
|
670 |
val note_thmss = gen_thmss (K []) I #2 (K I) (K I); |
655e2d74de3a
modernized naming conventions of main Isar proof elements;
wenzelm
parents:
36322
diff
changeset
|
671 |
val note_thmss_cmd = gen_thmss (K []) I #2 Attrib.attribute ProofContext.get_fact; |
17112 | 672 |
|
36323
655e2d74de3a
modernized naming conventions of main Isar proof elements;
wenzelm
parents:
36322
diff
changeset
|
673 |
val from_thmss = gen_thmss (K []) chain #2 (K I) (K I) o no_binding; |
655e2d74de3a
modernized naming conventions of main Isar proof elements;
wenzelm
parents:
36322
diff
changeset
|
674 |
val from_thmss_cmd = gen_thmss (K []) chain #2 Attrib.attribute ProofContext.get_fact o no_binding; |
17359 | 675 |
|
36323
655e2d74de3a
modernized naming conventions of main Isar proof elements;
wenzelm
parents:
36322
diff
changeset
|
676 |
val with_thmss = gen_thmss the_facts chain #2 (K I) (K I) o no_binding; |
655e2d74de3a
modernized naming conventions of main Isar proof elements;
wenzelm
parents:
36322
diff
changeset
|
677 |
val with_thmss_cmd = gen_thmss the_facts chain #2 Attrib.attribute ProofContext.get_fact o no_binding; |
30760
0fffc66b10d7
simplified references to facts, eliminated external note_thmss;
wenzelm
parents:
30757
diff
changeset
|
678 |
|
0fffc66b10d7
simplified references to facts, eliminated external note_thmss;
wenzelm
parents:
30757
diff
changeset
|
679 |
val local_results = gen_thmss (K []) I I (K I) (K I) o map (apsnd Thm.simple_fact); |
17359 | 680 |
|
17112 | 681 |
end; |
682 |
||
683 |
||
18548 | 684 |
(* using/unfolding *) |
17112 | 685 |
|
686 |
local |
|
687 |
||
30760
0fffc66b10d7
simplified references to facts, eliminated external note_thmss;
wenzelm
parents:
30757
diff
changeset
|
688 |
fun gen_using f g prep_atts prep_fact args state = |
17112 | 689 |
state |
690 |
|> assert_backward |
|
21442 | 691 |
|> map_context_result |
30761
ac7570d80c3d
renamed ProofContext.note_thmss_i to ProofContext.note_thmss, eliminated obsolete external version;
wenzelm
parents:
30760
diff
changeset
|
692 |
(ProofContext.note_thmss "" |
30760
0fffc66b10d7
simplified references to facts, eliminated external note_thmss;
wenzelm
parents:
30757
diff
changeset
|
693 |
(Attrib.map_facts_refs (prep_atts (theory_of state)) (prep_fact (context_of state)) |
0fffc66b10d7
simplified references to facts, eliminated external note_thmss;
wenzelm
parents:
30757
diff
changeset
|
694 |
(no_binding args))) |
18843 | 695 |
|> (fn (named_facts, state') => |
24556 | 696 |
state' |> map_goal I (fn (statement, _, using, goal, before_qed, after_qed) => |
18843 | 697 |
let |
698 |
val ctxt = context_of state'; |
|
19482
9f11af8f7ef9
tuned basic list operators (flat, maps, map_filter);
wenzelm
parents:
19475
diff
changeset
|
699 |
val ths = maps snd named_facts; |
24556 | 700 |
in (statement, [], f ctxt ths using, g ctxt ths goal, before_qed, after_qed) end)); |
18548 | 701 |
|
24050 | 702 |
fun append_using _ ths using = using @ filter_out Thm.is_dummy ths; |
35624 | 703 |
fun unfold_using ctxt ths = map (Local_Defs.unfold ctxt ths); |
704 |
val unfold_goals = Local_Defs.unfold_goals; |
|
17112 | 705 |
|
706 |
in |
|
707 |
||
36323
655e2d74de3a
modernized naming conventions of main Isar proof elements;
wenzelm
parents:
36322
diff
changeset
|
708 |
val using = gen_using append_using (K (K I)) (K I) (K I); |
655e2d74de3a
modernized naming conventions of main Isar proof elements;
wenzelm
parents:
36322
diff
changeset
|
709 |
val using_cmd = gen_using append_using (K (K I)) Attrib.attribute ProofContext.get_fact; |
655e2d74de3a
modernized naming conventions of main Isar proof elements;
wenzelm
parents:
36322
diff
changeset
|
710 |
val unfolding = gen_using unfold_using unfold_goals (K I) (K I); |
655e2d74de3a
modernized naming conventions of main Isar proof elements;
wenzelm
parents:
36322
diff
changeset
|
711 |
val unfolding_cmd = gen_using unfold_using unfold_goals Attrib.attribute ProofContext.get_fact; |
17112 | 712 |
|
713 |
end; |
|
714 |
||
715 |
||
716 |
(* case *) |
|
717 |
||
718 |
local |
|
719 |
||
30419
c944e299eaf9
invoke_case: proper qualification of name binding, avoiding old no_base_names;
wenzelm
parents:
30279
diff
changeset
|
720 |
fun qualified_binding a = |
c944e299eaf9
invoke_case: proper qualification of name binding, avoiding old no_base_names;
wenzelm
parents:
30279
diff
changeset
|
721 |
Binding.qualify true (Long_Name.qualifier a) (Binding.name (Long_Name.base_name a)); |
c944e299eaf9
invoke_case: proper qualification of name binding, avoiding old no_base_names;
wenzelm
parents:
30279
diff
changeset
|
722 |
|
17112 | 723 |
fun gen_invoke_case prep_att (name, xs, raw_atts) state = |
724 |
let |
|
725 |
val atts = map (prep_att (theory_of state)) raw_atts; |
|
19078 | 726 |
val (asms, state') = state |> map_context_result (fn ctxt => |
727 |
ctxt |> ProofContext.apply_case (ProofContext.get_case ctxt name xs)); |
|
30419
c944e299eaf9
invoke_case: proper qualification of name binding, avoiding old no_base_names;
wenzelm
parents:
30279
diff
changeset
|
728 |
val assumptions = asms |> map (fn (a, ts) => ((qualified_binding a, atts), map (rpair []) ts)); |
17112 | 729 |
in |
730 |
state' |
|
36323
655e2d74de3a
modernized naming conventions of main Isar proof elements;
wenzelm
parents:
36322
diff
changeset
|
731 |
|> assume assumptions |
33386 | 732 |
|> bind_terms Auto_Bind.no_facts |
36323
655e2d74de3a
modernized naming conventions of main Isar proof elements;
wenzelm
parents:
36322
diff
changeset
|
733 |
|> `the_facts |-> (fn thms => note_thmss [((Binding.name name, []), [(thms, [])])]) |
17112 | 734 |
end; |
735 |
||
736 |
in |
|
737 |
||
36323
655e2d74de3a
modernized naming conventions of main Isar proof elements;
wenzelm
parents:
36322
diff
changeset
|
738 |
val invoke_case = gen_invoke_case (K I); |
655e2d74de3a
modernized naming conventions of main Isar proof elements;
wenzelm
parents:
36322
diff
changeset
|
739 |
val invoke_case_cmd = gen_invoke_case Attrib.attribute; |
17112 | 740 |
|
741 |
end; |
|
742 |
||
743 |
||
744 |
||
17359 | 745 |
(** proof structure **) |
746 |
||
747 |
(* blocks *) |
|
748 |
||
749 |
val begin_block = |
|
750 |
assert_forward |
|
751 |
#> open_block |
|
752 |
#> put_goal NONE |
|
753 |
#> open_block; |
|
754 |
||
755 |
val next_block = |
|
756 |
assert_forward |
|
757 |
#> close_block |
|
758 |
#> open_block |
|
759 |
#> put_goal NONE |
|
760 |
#> put_facts NONE; |
|
761 |
||
762 |
fun end_block state = |
|
763 |
state |
|
764 |
|> assert_forward |
|
765 |
|> close_block |
|
766 |
|> assert_current_goal false |
|
767 |
|> close_block |
|
768 |
|> export_facts state; |
|
769 |
||
770 |
||
771 |
(* sub-proofs *) |
|
772 |
||
773 |
fun proof opt_text = |
|
774 |
assert_backward |
|
17859 | 775 |
#> refine (the_default Method.default_text opt_text) |
17359 | 776 |
#> Seq.map (using_facts [] #> enter_forward); |
777 |
||
23360 | 778 |
fun end_proof bot txt state = |
779 |
state |
|
780 |
|> assert_forward |
|
781 |
|> assert_bottom bot |
|
782 |
|> close_block |
|
783 |
|> assert_current_goal true |
|
784 |
|> using_facts [] |
|
785 |
|> `before_qed |-> (refine o the_default Method.succeed_text) |
|
32193
c314b4836031
basic method application: avoid Position.setmp_thread_data_seq, which destroys transaction context;
wenzelm
parents:
32187
diff
changeset
|
786 |
|> Seq.maps (refine (Method.finish_text txt)); |
17359 | 787 |
|
29383 | 788 |
fun check_result msg sq = |
789 |
(case Seq.pull sq of |
|
790 |
NONE => error msg |
|
791 |
| SOME (s, _) => s); |
|
792 |
||
793 |
fun check_finish sq = check_result "Failed to finish proof" sq; |
|
794 |
||
17359 | 795 |
|
796 |
(* unstructured refinement *) |
|
797 |
||
32193
c314b4836031
basic method application: avoid Position.setmp_thread_data_seq, which destroys transaction context;
wenzelm
parents:
32187
diff
changeset
|
798 |
fun defer i = assert_no_chain #> refine (Method.Basic (K (Method.defer i))); |
c314b4836031
basic method application: avoid Position.setmp_thread_data_seq, which destroys transaction context;
wenzelm
parents:
32187
diff
changeset
|
799 |
fun prefer i = assert_no_chain #> refine (Method.Basic (K (Method.prefer i))); |
17359 | 800 |
|
801 |
fun apply text = assert_backward #> refine text #> Seq.map (using_facts []); |
|
802 |
fun apply_end text = assert_forward #> refine_end text; |
|
803 |
||
804 |
||
805 |
||
17112 | 806 |
(** goals **) |
807 |
||
17359 | 808 |
(* generic goals *) |
809 |
||
19774
5fe7731d0836
allow non-trivial schematic goals (via embedded term vars);
wenzelm
parents:
19585
diff
changeset
|
810 |
local |
5fe7731d0836
allow non-trivial schematic goals (via embedded term vars);
wenzelm
parents:
19585
diff
changeset
|
811 |
|
36322
81cba3921ba5
goals: simplified handling of implicit variables -- removed obsolete warning;
wenzelm
parents:
35624
diff
changeset
|
812 |
val is_var = |
81cba3921ba5
goals: simplified handling of implicit variables -- removed obsolete warning;
wenzelm
parents:
35624
diff
changeset
|
813 |
can (dest_TVar o Logic.dest_type o Logic.dest_term) orf |
81cba3921ba5
goals: simplified handling of implicit variables -- removed obsolete warning;
wenzelm
parents:
35624
diff
changeset
|
814 |
can (dest_Var o Logic.dest_term); |
81cba3921ba5
goals: simplified handling of implicit variables -- removed obsolete warning;
wenzelm
parents:
35624
diff
changeset
|
815 |
|
81cba3921ba5
goals: simplified handling of implicit variables -- removed obsolete warning;
wenzelm
parents:
35624
diff
changeset
|
816 |
fun implicit_vars props = |
19846 | 817 |
let |
36354 | 818 |
val (var_props, _) = take_prefix is_var props; |
36322
81cba3921ba5
goals: simplified handling of implicit variables -- removed obsolete warning;
wenzelm
parents:
35624
diff
changeset
|
819 |
val explicit_vars = fold Term.add_vars var_props []; |
81cba3921ba5
goals: simplified handling of implicit variables -- removed obsolete warning;
wenzelm
parents:
35624
diff
changeset
|
820 |
val vars = filter_out (member (op =) explicit_vars) (fold Term.add_vars props []); |
81cba3921ba5
goals: simplified handling of implicit variables -- removed obsolete warning;
wenzelm
parents:
35624
diff
changeset
|
821 |
in map (Logic.mk_term o Var) vars end; |
19774
5fe7731d0836
allow non-trivial schematic goals (via embedded term vars);
wenzelm
parents:
19585
diff
changeset
|
822 |
|
5fe7731d0836
allow non-trivial schematic goals (via embedded term vars);
wenzelm
parents:
19585
diff
changeset
|
823 |
fun refine_terms n = |
30510
4120fc59dd85
unified type Proof.method and pervasive METHOD combinators;
wenzelm
parents:
30419
diff
changeset
|
824 |
refine (Method.Basic (K (RAW_METHOD |
19774
5fe7731d0836
allow non-trivial schematic goals (via embedded term vars);
wenzelm
parents:
19585
diff
changeset
|
825 |
(K (HEADGOAL (PRECISE_CONJUNCTS n |
32193
c314b4836031
basic method application: avoid Position.setmp_thread_data_seq, which destroys transaction context;
wenzelm
parents:
32187
diff
changeset
|
826 |
(HEADGOAL (CONJUNCTS (ALLGOALS (rtac Drule.termI)))))))))) |
19774
5fe7731d0836
allow non-trivial schematic goals (via embedded term vars);
wenzelm
parents:
19585
diff
changeset
|
827 |
#> Seq.hd; |
5fe7731d0836
allow non-trivial schematic goals (via embedded term vars);
wenzelm
parents:
19585
diff
changeset
|
828 |
|
5fe7731d0836
allow non-trivial schematic goals (via embedded term vars);
wenzelm
parents:
19585
diff
changeset
|
829 |
in |
17359 | 830 |
|
17859 | 831 |
fun generic_goal prepp kind before_qed after_qed raw_propp state = |
5820 | 832 |
let |
17359 | 833 |
val thy = theory_of state; |
23418 | 834 |
val cert = Thm.cterm_of thy; |
17359 | 835 |
val chaining = can assert_chain state; |
25958 | 836 |
val pos = Position.thread_data (); |
17359 | 837 |
|
838 |
val ((propss, after_ctxt), goal_state) = |
|
5936 | 839 |
state |
840 |
|> assert_forward_or_chain |
|
841 |
|> enter_forward |
|
17359 | 842 |
|> open_block |
17859 | 843 |
|> map_context_result (fn ctxt => swap (prepp (ctxt, raw_propp))); |
19482
9f11af8f7ef9
tuned basic list operators (flat, maps, map_filter);
wenzelm
parents:
19475
diff
changeset
|
844 |
val props = flat propss; |
15703 | 845 |
|
36322
81cba3921ba5
goals: simplified handling of implicit variables -- removed obsolete warning;
wenzelm
parents:
35624
diff
changeset
|
846 |
val vars = implicit_vars props; |
81cba3921ba5
goals: simplified handling of implicit variables -- removed obsolete warning;
wenzelm
parents:
35624
diff
changeset
|
847 |
val propss' = vars :: propss; |
23418 | 848 |
val goal_propss = filter_out null propss'; |
29346
fe6843aa4f5f
more precise is_relevant: requires original main goal, not initial goal state;
wenzelm
parents:
29090
diff
changeset
|
849 |
val goal = |
fe6843aa4f5f
more precise is_relevant: requires original main goal, not initial goal state;
wenzelm
parents:
29090
diff
changeset
|
850 |
cert (Logic.mk_conjunction_balanced (map Logic.mk_conjunction_balanced goal_propss)) |
28627
63663cfa297c
conclude_goal: precise goal context, include all sorts from context into statement, check shyps of result;
wenzelm
parents:
28458
diff
changeset
|
851 |
|> Thm.weaken_sorts (Variable.sorts_of (context_of goal_state)); |
29346
fe6843aa4f5f
more precise is_relevant: requires original main goal, not initial goal state;
wenzelm
parents:
29090
diff
changeset
|
852 |
val statement = ((kind, pos), propss', Thm.term_of goal); |
18124 | 853 |
val after_qed' = after_qed |>> (fn after_local => |
854 |
fn results => map_context after_ctxt #> after_local results); |
|
5820 | 855 |
in |
17359 | 856 |
goal_state |
21727 | 857 |
|> map_context (init_context #> Variable.set_body true) |
28410 | 858 |
|> put_goal (SOME (make_goal (statement, [], [], Goal.init goal, before_qed, after_qed'))) |
17359 | 859 |
|> map_context (ProofContext.auto_bind_goal props) |
21565 | 860 |
|> chaining ? (`the_facts #-> using_facts) |
17359 | 861 |
|> put_facts NONE |
862 |
|> open_block |
|
863 |
|> put_goal NONE |
|
5820 | 864 |
|> enter_backward |
23418 | 865 |
|> not (null vars) ? refine_terms (length goal_propss) |
32193
c314b4836031
basic method application: avoid Position.setmp_thread_data_seq, which destroys transaction context;
wenzelm
parents:
32187
diff
changeset
|
866 |
|> null props ? (refine (Method.Basic Method.assumption) #> Seq.hd) |
5820 | 867 |
end; |
868 |
||
29090
bbfac5fd8d78
global_qed: refrain from ProofContext.auto_bind_facts, to avoid
wenzelm
parents:
28981
diff
changeset
|
869 |
fun generic_qed after_ctxt state = |
12503 | 870 |
let |
36354 | 871 |
val (goal_ctxt, {statement = (_, stmt, _), goal, after_qed, ...}) = current_goal state; |
8617
33e2bd53aec3
support Hindley-Milner polymorphisms in binds and facts;
wenzelm
parents:
8582
diff
changeset
|
872 |
val outer_state = state |> close_block; |
33e2bd53aec3
support Hindley-Milner polymorphisms in binds and facts;
wenzelm
parents:
8582
diff
changeset
|
873 |
val outer_ctxt = context_of outer_state; |
33e2bd53aec3
support Hindley-Milner polymorphisms in binds and facts;
wenzelm
parents:
8582
diff
changeset
|
874 |
|
18503
841137f20307
goal/qed: proper treatment of two levels of conjunctions;
wenzelm
parents:
18475
diff
changeset
|
875 |
val props = |
19774
5fe7731d0836
allow non-trivial schematic goals (via embedded term vars);
wenzelm
parents:
19585
diff
changeset
|
876 |
flat (tl stmt) |
19915 | 877 |
|> Variable.exportT_terms goal_ctxt outer_ctxt; |
17359 | 878 |
val results = |
28627
63663cfa297c
conclude_goal: precise goal context, include all sorts from context into statement, check shyps of result;
wenzelm
parents:
28458
diff
changeset
|
879 |
tl (conclude_goal goal_ctxt goal stmt) |
20309 | 880 |
|> burrow (ProofContext.export goal_ctxt outer_ctxt); |
17359 | 881 |
in |
882 |
outer_state |
|
29090
bbfac5fd8d78
global_qed: refrain from ProofContext.auto_bind_facts, to avoid
wenzelm
parents:
28981
diff
changeset
|
883 |
|> map_context (after_ctxt props) |
34239
e18b0f7b9902
after_qed: refrain from Position.setmp_thread_data, which causes duplication of results with several independent proof attempts;
wenzelm
parents:
33389
diff
changeset
|
884 |
|> pair (after_qed, results) |
17359 | 885 |
end; |
886 |
||
19774
5fe7731d0836
allow non-trivial schematic goals (via embedded term vars);
wenzelm
parents:
19585
diff
changeset
|
887 |
end; |
5fe7731d0836
allow non-trivial schematic goals (via embedded term vars);
wenzelm
parents:
19585
diff
changeset
|
888 |
|
9469 | 889 |
|
17359 | 890 |
(* local goals *) |
891 |
||
17859 | 892 |
fun local_goal print_results prep_att prepp kind before_qed after_qed stmt state = |
17359 | 893 |
let |
21362
3a2ab1dce297
simplified Proof.theorem(_i) interface -- removed target support;
wenzelm
parents:
21274
diff
changeset
|
894 |
val thy = theory_of state; |
3a2ab1dce297
simplified Proof.theorem(_i) interface -- removed target support;
wenzelm
parents:
21274
diff
changeset
|
895 |
val ((names, attss), propp) = |
3a2ab1dce297
simplified Proof.theorem(_i) interface -- removed target support;
wenzelm
parents:
21274
diff
changeset
|
896 |
Attrib.map_specs (prep_att thy) stmt |> split_list |>> split_list; |
17359 | 897 |
|
18124 | 898 |
fun after_qed' results = |
18808 | 899 |
local_results ((names ~~ attss) ~~ results) |
17359 | 900 |
#-> (fn res => tap (fn st => print_results (context_of st) ((kind, ""), res) : unit)) |
18124 | 901 |
#> after_qed results; |
5820 | 902 |
in |
17359 | 903 |
state |
21362
3a2ab1dce297
simplified Proof.theorem(_i) interface -- removed target support;
wenzelm
parents:
21274
diff
changeset
|
904 |
|> generic_goal prepp kind before_qed (after_qed', K I) propp |
19900
21a99d88d925
ProofContext: moved variable operations to struct Variable;
wenzelm
parents:
19862
diff
changeset
|
905 |
|> tap (Variable.warn_extra_tfrees (context_of state) o context_of) |
5820 | 906 |
end; |
907 |
||
29383 | 908 |
fun local_qeds txt = |
909 |
end_proof false txt |
|
910 |
#> Seq.map (generic_qed ProofContext.auto_bind_facts #-> |
|
29090
bbfac5fd8d78
global_qed: refrain from ProofContext.auto_bind_facts, to avoid
wenzelm
parents:
28981
diff
changeset
|
911 |
(fn ((after_qed, _), results) => after_qed results)); |
5820 | 912 |
|
29383 | 913 |
fun local_qed txt = local_qeds txt #> check_finish; |
914 |
||
5820 | 915 |
|
17359 | 916 |
(* global goals *) |
917 |
||
21442 | 918 |
fun global_goal prepp before_qed after_qed propp ctxt = |
21362
3a2ab1dce297
simplified Proof.theorem(_i) interface -- removed target support;
wenzelm
parents:
21274
diff
changeset
|
919 |
init ctxt |
29383 | 920 |
|> generic_goal (prepp #> ProofContext.auto_fixes) "" before_qed (K I, after_qed) propp; |
17359 | 921 |
|
36323
655e2d74de3a
modernized naming conventions of main Isar proof elements;
wenzelm
parents:
36322
diff
changeset
|
922 |
val theorem = global_goal ProofContext.bind_propp_schematic_i; |
655e2d74de3a
modernized naming conventions of main Isar proof elements;
wenzelm
parents:
36322
diff
changeset
|
923 |
val theorem_cmd = global_goal ProofContext.bind_propp_schematic; |
12065 | 924 |
|
17359 | 925 |
fun global_qeds txt = |
926 |
end_proof true txt |
|
29090
bbfac5fd8d78
global_qed: refrain from ProofContext.auto_bind_facts, to avoid
wenzelm
parents:
28981
diff
changeset
|
927 |
#> Seq.map (generic_qed (K I) #> (fn (((_, after_qed), results), state) => |
29383 | 928 |
after_qed results (context_of state))); |
17112 | 929 |
|
29383 | 930 |
fun global_qed txt = global_qeds txt #> check_finish; |
12959 | 931 |
|
5820 | 932 |
|
17359 | 933 |
(* concluding steps *) |
17112 | 934 |
|
29383 | 935 |
fun terminal_proof qed initial terminal = |
936 |
proof (SOME initial) #> Seq.maps (qed terminal) #> check_finish; |
|
17112 | 937 |
|
29383 | 938 |
fun local_terminal_proof (text, opt_text) = terminal_proof local_qeds text (opt_text, true); |
17112 | 939 |
val local_default_proof = local_terminal_proof (Method.default_text, NONE); |
940 |
val local_immediate_proof = local_terminal_proof (Method.this_text, NONE); |
|
17359 | 941 |
fun local_skip_proof int = local_terminal_proof (Method.sorry_text int, NONE); |
29383 | 942 |
val local_done_proof = terminal_proof local_qeds Method.done_text (NONE, false); |
17112 | 943 |
|
29383 | 944 |
fun global_terminal_proof (text, opt_text) = terminal_proof global_qeds text (opt_text, true); |
17112 | 945 |
val global_default_proof = global_terminal_proof (Method.default_text, NONE); |
946 |
val global_immediate_proof = global_terminal_proof (Method.this_text, NONE); |
|
17359 | 947 |
fun global_skip_proof int = global_terminal_proof (Method.sorry_text int, NONE); |
29383 | 948 |
val global_done_proof = terminal_proof global_qeds Method.done_text (NONE, false); |
5820 | 949 |
|
6896 | 950 |
|
17359 | 951 |
(* common goal statements *) |
952 |
||
953 |
local |
|
954 |
||
17859 | 955 |
fun gen_have prep_att prepp before_qed after_qed stmt int = |
33389 | 956 |
local_goal (Proof_Display.print_results int) prep_att prepp "have" before_qed after_qed stmt; |
6896 | 957 |
|
17859 | 958 |
fun gen_show prep_att prepp before_qed after_qed stmt int state = |
17359 | 959 |
let |
32738 | 960 |
val testing = Unsynchronized.ref false; |
961 |
val rule = Unsynchronized.ref (NONE: thm option); |
|
17359 | 962 |
fun fail_msg ctxt = |
29383 | 963 |
"Local statement will fail to refine any pending goal" :: |
33389 | 964 |
(case ! rule of NONE => [] | SOME th => [Proof_Display.string_of_rule ctxt "Failed" th]) |
17359 | 965 |
|> cat_lines; |
6896 | 966 |
|
17359 | 967 |
fun print_results ctxt res = |
33389 | 968 |
if ! testing then () else Proof_Display.print_results int ctxt res; |
17359 | 969 |
fun print_rule ctxt th = |
970 |
if ! testing then rule := SOME th |
|
33389 | 971 |
else if int then priority (Proof_Display.string_of_rule ctxt "Successful" th) |
17359 | 972 |
else (); |
973 |
val test_proof = |
|
29383 | 974 |
try (local_skip_proof true) |
28289 | 975 |
|> setmp_noncritical testing true |
23963
c2ee97a963db
moved exception capture/release to structure Exn;
wenzelm
parents:
23806
diff
changeset
|
976 |
|> Exn.capture; |
6896 | 977 |
|
18124 | 978 |
fun after_qed' results = |
19482
9f11af8f7ef9
tuned basic list operators (flat, maps, map_filter);
wenzelm
parents:
19475
diff
changeset
|
979 |
refine_goals print_rule (context_of state) (flat results) |
29383 | 980 |
#> check_result "Failed to refine any pending goal" |
981 |
#> after_qed results; |
|
17359 | 982 |
in |
983 |
state |
|
17859 | 984 |
|> local_goal print_results prep_att prepp "show" before_qed after_qed' stmt |
21565 | 985 |
|> int ? (fn goal_state => |
17359 | 986 |
(case test_proof goal_state of |
23963
c2ee97a963db
moved exception capture/release to structure Exn;
wenzelm
parents:
23806
diff
changeset
|
987 |
Exn.Result (SOME _) => goal_state |
c2ee97a963db
moved exception capture/release to structure Exn;
wenzelm
parents:
23806
diff
changeset
|
988 |
| Exn.Result NONE => error (fail_msg (context_of goal_state)) |
28443 | 989 |
| Exn.Exn Exn.Interrupt => raise Exn.Interrupt |
28458 | 990 |
| Exn.Exn exn => raise Exn.EXCEPTIONS ([exn, ERROR (fail_msg (context_of goal_state))]))) |
17359 | 991 |
end; |
992 |
||
993 |
in |
|
994 |
||
36323
655e2d74de3a
modernized naming conventions of main Isar proof elements;
wenzelm
parents:
36322
diff
changeset
|
995 |
val have = gen_have (K I) ProofContext.bind_propp_i; |
655e2d74de3a
modernized naming conventions of main Isar proof elements;
wenzelm
parents:
36322
diff
changeset
|
996 |
val have_cmd = gen_have Attrib.attribute ProofContext.bind_propp; |
655e2d74de3a
modernized naming conventions of main Isar proof elements;
wenzelm
parents:
36322
diff
changeset
|
997 |
val show = gen_show (K I) ProofContext.bind_propp_i; |
655e2d74de3a
modernized naming conventions of main Isar proof elements;
wenzelm
parents:
36322
diff
changeset
|
998 |
val show_cmd = gen_show Attrib.attribute ProofContext.bind_propp; |
6896 | 999 |
|
5820 | 1000 |
end; |
17359 | 1001 |
|
28410 | 1002 |
|
29385
c96b91bab2e6
future_proof: refined version covers local_future_proof and global_future_proof;
wenzelm
parents:
29383
diff
changeset
|
1003 |
|
c96b91bab2e6
future_proof: refined version covers local_future_proof and global_future_proof;
wenzelm
parents:
29383
diff
changeset
|
1004 |
(** future proofs **) |
c96b91bab2e6
future_proof: refined version covers local_future_proof and global_future_proof;
wenzelm
parents:
29383
diff
changeset
|
1005 |
|
c96b91bab2e6
future_proof: refined version covers local_future_proof and global_future_proof;
wenzelm
parents:
29383
diff
changeset
|
1006 |
(* relevant proof states *) |
c96b91bab2e6
future_proof: refined version covers local_future_proof and global_future_proof;
wenzelm
parents:
29383
diff
changeset
|
1007 |
|
c96b91bab2e6
future_proof: refined version covers local_future_proof and global_future_proof;
wenzelm
parents:
29383
diff
changeset
|
1008 |
fun is_schematic t = |
c96b91bab2e6
future_proof: refined version covers local_future_proof and global_future_proof;
wenzelm
parents:
29383
diff
changeset
|
1009 |
Term.exists_subterm Term.is_Var t orelse |
c96b91bab2e6
future_proof: refined version covers local_future_proof and global_future_proof;
wenzelm
parents:
29383
diff
changeset
|
1010 |
Term.exists_type (Term.exists_subtype Term.is_TVar) t; |
c96b91bab2e6
future_proof: refined version covers local_future_proof and global_future_proof;
wenzelm
parents:
29383
diff
changeset
|
1011 |
|
c96b91bab2e6
future_proof: refined version covers local_future_proof and global_future_proof;
wenzelm
parents:
29383
diff
changeset
|
1012 |
fun schematic_goal state = |
c96b91bab2e6
future_proof: refined version covers local_future_proof and global_future_proof;
wenzelm
parents:
29383
diff
changeset
|
1013 |
let val (_, (_, {statement = (_, _, prop), ...})) = find_goal state |
c96b91bab2e6
future_proof: refined version covers local_future_proof and global_future_proof;
wenzelm
parents:
29383
diff
changeset
|
1014 |
in is_schematic prop end; |
c96b91bab2e6
future_proof: refined version covers local_future_proof and global_future_proof;
wenzelm
parents:
29383
diff
changeset
|
1015 |
|
c96b91bab2e6
future_proof: refined version covers local_future_proof and global_future_proof;
wenzelm
parents:
29383
diff
changeset
|
1016 |
fun is_relevant state = |
c96b91bab2e6
future_proof: refined version covers local_future_proof and global_future_proof;
wenzelm
parents:
29383
diff
changeset
|
1017 |
(case try find_goal state of |
c96b91bab2e6
future_proof: refined version covers local_future_proof and global_future_proof;
wenzelm
parents:
29383
diff
changeset
|
1018 |
NONE => true |
c96b91bab2e6
future_proof: refined version covers local_future_proof and global_future_proof;
wenzelm
parents:
29383
diff
changeset
|
1019 |
| SOME (_, (_, {statement = (_, _, prop), goal, ...})) => |
c96b91bab2e6
future_proof: refined version covers local_future_proof and global_future_proof;
wenzelm
parents:
29383
diff
changeset
|
1020 |
is_schematic prop orelse not (Logic.protect prop aconv Thm.concl_of goal)); |
c96b91bab2e6
future_proof: refined version covers local_future_proof and global_future_proof;
wenzelm
parents:
29383
diff
changeset
|
1021 |
|
c96b91bab2e6
future_proof: refined version covers local_future_proof and global_future_proof;
wenzelm
parents:
29383
diff
changeset
|
1022 |
|
c96b91bab2e6
future_proof: refined version covers local_future_proof and global_future_proof;
wenzelm
parents:
29383
diff
changeset
|
1023 |
(* full proofs *) |
28410 | 1024 |
|
29346
fe6843aa4f5f
more precise is_relevant: requires original main goal, not initial goal state;
wenzelm
parents:
29090
diff
changeset
|
1025 |
local |
fe6843aa4f5f
more precise is_relevant: requires original main goal, not initial goal state;
wenzelm
parents:
29090
diff
changeset
|
1026 |
|
29385
c96b91bab2e6
future_proof: refined version covers local_future_proof and global_future_proof;
wenzelm
parents:
29383
diff
changeset
|
1027 |
fun future_proof done get_context fork_proof state = |
28410 | 1028 |
let |
29381
45d77aeb1608
future_terminal_proof: no fork for interactive mode, assert_backward;
wenzelm
parents:
29364
diff
changeset
|
1029 |
val _ = assert_backward state; |
28410 | 1030 |
val (goal_ctxt, (_, goal)) = find_goal state; |
32786 | 1031 |
val {statement as (kind, _, prop), messages, using, goal, before_qed, after_qed} = goal; |
32062
457f5bcd3d76
Proof.future_proof: declare all assumptions as well;
wenzelm
parents:
32061
diff
changeset
|
1032 |
val goal_txt = prop :: map Thm.term_of (Assumption.all_assms_of goal_ctxt); |
28410 | 1033 |
|
29383 | 1034 |
val _ = is_relevant state andalso error "Cannot fork relevant proof"; |
1035 |
||
29346
fe6843aa4f5f
more precise is_relevant: requires original main goal, not initial goal state;
wenzelm
parents:
29090
diff
changeset
|
1036 |
val prop' = Logic.protect prop; |
fe6843aa4f5f
more precise is_relevant: requires original main goal, not initial goal state;
wenzelm
parents:
29090
diff
changeset
|
1037 |
val statement' = (kind, [[], [prop']], prop'); |
fe6843aa4f5f
more precise is_relevant: requires original main goal, not initial goal state;
wenzelm
parents:
29090
diff
changeset
|
1038 |
val goal' = Thm.adjust_maxidx_thm (Thm.maxidx_of goal) |
fe6843aa4f5f
more precise is_relevant: requires original main goal, not initial goal state;
wenzelm
parents:
29090
diff
changeset
|
1039 |
(Drule.comp_no_flatten (goal, Thm.nprems_of goal) 1 Drule.protectI); |
29385
c96b91bab2e6
future_proof: refined version covers local_future_proof and global_future_proof;
wenzelm
parents:
29383
diff
changeset
|
1040 |
|
33386 | 1041 |
fun after_local' [[th]] = put_thms false (Auto_Bind.thisN, SOME [th]); |
1042 |
fun after_global' [[th]] = ProofContext.put_thms false (Auto_Bind.thisN, SOME [th]); |
|
29385
c96b91bab2e6
future_proof: refined version covers local_future_proof and global_future_proof;
wenzelm
parents:
29383
diff
changeset
|
1043 |
val after_qed' = (after_local', after_global'); |
33386 | 1044 |
val this_name = ProofContext.full_name goal_ctxt (Binding.name Auto_Bind.thisN); |
28410 | 1045 |
|
28973
c549650d1442
future proofs: pass actual futures to facilitate composite computations;
wenzelm
parents:
28627
diff
changeset
|
1046 |
val result_ctxt = |
c549650d1442
future proofs: pass actual futures to facilitate composite computations;
wenzelm
parents:
28627
diff
changeset
|
1047 |
state |
32062
457f5bcd3d76
Proof.future_proof: declare all assumptions as well;
wenzelm
parents:
32061
diff
changeset
|
1048 |
|> map_contexts (fold Variable.declare_term goal_txt) |
29385
c96b91bab2e6
future_proof: refined version covers local_future_proof and global_future_proof;
wenzelm
parents:
29383
diff
changeset
|
1049 |
|> map_goal I (K (statement', messages, using, goal', before_qed, after_qed')) |
29346
fe6843aa4f5f
more precise is_relevant: requires original main goal, not initial goal state;
wenzelm
parents:
29090
diff
changeset
|
1050 |
|> fork_proof; |
28973
c549650d1442
future proofs: pass actual futures to facilitate composite computations;
wenzelm
parents:
28627
diff
changeset
|
1051 |
|
29385
c96b91bab2e6
future_proof: refined version covers local_future_proof and global_future_proof;
wenzelm
parents:
29383
diff
changeset
|
1052 |
val future_thm = result_ctxt |> Future.map (fn (_, x) => |
c96b91bab2e6
future_proof: refined version covers local_future_proof and global_future_proof;
wenzelm
parents:
29383
diff
changeset
|
1053 |
ProofContext.get_fact_single (get_context x) (Facts.named this_name)); |
32062
457f5bcd3d76
Proof.future_proof: declare all assumptions as well;
wenzelm
parents:
32061
diff
changeset
|
1054 |
val finished_goal = Goal.future_result goal_ctxt future_thm prop'; |
28973
c549650d1442
future proofs: pass actual futures to facilitate composite computations;
wenzelm
parents:
28627
diff
changeset
|
1055 |
val state' = |
c549650d1442
future proofs: pass actual futures to facilitate composite computations;
wenzelm
parents:
28627
diff
changeset
|
1056 |
state |
c549650d1442
future proofs: pass actual futures to facilitate composite computations;
wenzelm
parents:
28627
diff
changeset
|
1057 |
|> map_goal I (K (statement, messages, using, finished_goal, NONE, after_qed)) |
29385
c96b91bab2e6
future_proof: refined version covers local_future_proof and global_future_proof;
wenzelm
parents:
29383
diff
changeset
|
1058 |
|> done; |
28973
c549650d1442
future proofs: pass actual futures to facilitate composite computations;
wenzelm
parents:
28627
diff
changeset
|
1059 |
in (Future.map #1 result_ctxt, state') end; |
28410 | 1060 |
|
29385
c96b91bab2e6
future_proof: refined version covers local_future_proof and global_future_proof;
wenzelm
parents:
29383
diff
changeset
|
1061 |
in |
c96b91bab2e6
future_proof: refined version covers local_future_proof and global_future_proof;
wenzelm
parents:
29383
diff
changeset
|
1062 |
|
c96b91bab2e6
future_proof: refined version covers local_future_proof and global_future_proof;
wenzelm
parents:
29383
diff
changeset
|
1063 |
fun local_future_proof x = future_proof local_done_proof context_of x; |
c96b91bab2e6
future_proof: refined version covers local_future_proof and global_future_proof;
wenzelm
parents:
29383
diff
changeset
|
1064 |
fun global_future_proof x = future_proof global_done_proof I x; |
c96b91bab2e6
future_proof: refined version covers local_future_proof and global_future_proof;
wenzelm
parents:
29383
diff
changeset
|
1065 |
|
17359 | 1066 |
end; |
29346
fe6843aa4f5f
more precise is_relevant: requires original main goal, not initial goal state;
wenzelm
parents:
29090
diff
changeset
|
1067 |
|
29385
c96b91bab2e6
future_proof: refined version covers local_future_proof and global_future_proof;
wenzelm
parents:
29383
diff
changeset
|
1068 |
|
c96b91bab2e6
future_proof: refined version covers local_future_proof and global_future_proof;
wenzelm
parents:
29383
diff
changeset
|
1069 |
(* terminal proofs *) |
c96b91bab2e6
future_proof: refined version covers local_future_proof and global_future_proof;
wenzelm
parents:
29383
diff
changeset
|
1070 |
|
c96b91bab2e6
future_proof: refined version covers local_future_proof and global_future_proof;
wenzelm
parents:
29383
diff
changeset
|
1071 |
local |
c96b91bab2e6
future_proof: refined version covers local_future_proof and global_future_proof;
wenzelm
parents:
29383
diff
changeset
|
1072 |
|
c96b91bab2e6
future_proof: refined version covers local_future_proof and global_future_proof;
wenzelm
parents:
29383
diff
changeset
|
1073 |
fun future_terminal_proof proof1 proof2 meths int state = |
38218
1408f753bd75
removed obsolete Goal.local_future_enforced: Toplevel.run_command is no longer interactive, so Goal.local_future_enabled is sufficient (cf. 349e9223c685 and e07dacec79e7);
wenzelm
parents:
37949
diff
changeset
|
1074 |
if int orelse is_relevant state orelse not (Goal.local_future_enabled ()) |
29385
c96b91bab2e6
future_proof: refined version covers local_future_proof and global_future_proof;
wenzelm
parents:
29383
diff
changeset
|
1075 |
then proof1 meths state |
37186
349e9223c685
explicit markup for forked goals, as indicated by Goal.fork;
wenzelm
parents:
36507
diff
changeset
|
1076 |
else snd (proof2 (fn state' => Goal.fork (fn () => ((), proof1 meths state'))) state); |
29385
c96b91bab2e6
future_proof: refined version covers local_future_proof and global_future_proof;
wenzelm
parents:
29383
diff
changeset
|
1077 |
|
c96b91bab2e6
future_proof: refined version covers local_future_proof and global_future_proof;
wenzelm
parents:
29383
diff
changeset
|
1078 |
in |
c96b91bab2e6
future_proof: refined version covers local_future_proof and global_future_proof;
wenzelm
parents:
29383
diff
changeset
|
1079 |
|
c96b91bab2e6
future_proof: refined version covers local_future_proof and global_future_proof;
wenzelm
parents:
29383
diff
changeset
|
1080 |
fun local_future_terminal_proof x = |
c96b91bab2e6
future_proof: refined version covers local_future_proof and global_future_proof;
wenzelm
parents:
29383
diff
changeset
|
1081 |
future_terminal_proof local_terminal_proof local_future_proof x; |
c96b91bab2e6
future_proof: refined version covers local_future_proof and global_future_proof;
wenzelm
parents:
29383
diff
changeset
|
1082 |
|
c96b91bab2e6
future_proof: refined version covers local_future_proof and global_future_proof;
wenzelm
parents:
29383
diff
changeset
|
1083 |
fun global_future_terminal_proof x = |
c96b91bab2e6
future_proof: refined version covers local_future_proof and global_future_proof;
wenzelm
parents:
29383
diff
changeset
|
1084 |
future_terminal_proof global_terminal_proof global_future_proof x; |
29350 | 1085 |
|
29346
fe6843aa4f5f
more precise is_relevant: requires original main goal, not initial goal state;
wenzelm
parents:
29090
diff
changeset
|
1086 |
end; |
fe6843aa4f5f
more precise is_relevant: requires original main goal, not initial goal state;
wenzelm
parents:
29090
diff
changeset
|
1087 |
|
29385
c96b91bab2e6
future_proof: refined version covers local_future_proof and global_future_proof;
wenzelm
parents:
29383
diff
changeset
|
1088 |
end; |
c96b91bab2e6
future_proof: refined version covers local_future_proof and global_future_proof;
wenzelm
parents:
29383
diff
changeset
|
1089 |