author | wenzelm |
Sun, 25 Apr 2010 16:10:05 +0200 | |
changeset 36324 | 7cd5057a5bb8 |
parent 36323 | 655e2d74de3a |
child 36354 | bbd742107f56 |
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 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 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 get_thmss_cmd: state -> (Facts.ref * Attrib.src list) list -> thm list |
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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 |
655e2d74de3a
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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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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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fun these_factss more_facts (named_factss, state) = |
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(named_factss, state |> put_facts (SOME (maps snd named_factss @ more_facts))); |
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fun export_facts inner outer = |
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(case get_facts inner of |
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NONE => put_facts NONE outer |
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| SOME thms => |
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thms |
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|> ProofContext.export (context_of inner) (context_of outer) |
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|> (fn ths => put_facts (SOME ths) outer)); |
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(* mode *) |
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val get_mode = #mode o current; |
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fun put_mode mode = map_current (fn (ctxt, facts, _, goal) => (ctxt, facts, mode, goal)); |
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||
17359 | 245 |
val mode_name = (fn Forward => "state" | Chain => "chain" | Backward => "prove"); |
5820 | 246 |
|
247 |
fun assert_mode pred state = |
|
248 |
let val mode = get_mode state in |
|
249 |
if pred mode then state |
|
18678 | 250 |
else error ("Illegal application of proof command in " ^ quote (mode_name mode) ^ " mode") |
5820 | 251 |
end; |
252 |
||
19308 | 253 |
val assert_forward = assert_mode (fn mode => mode = Forward); |
254 |
val assert_chain = assert_mode (fn mode => mode = Chain); |
|
255 |
val assert_forward_or_chain = assert_mode (fn mode => mode = Forward orelse mode = Chain); |
|
256 |
val assert_backward = assert_mode (fn mode => mode = Backward); |
|
257 |
val assert_no_chain = assert_mode (fn mode => mode <> Chain); |
|
5820 | 258 |
|
17359 | 259 |
val enter_forward = put_mode Forward; |
260 |
val enter_chain = put_mode Chain; |
|
261 |
val enter_backward = put_mode Backward; |
|
5820 | 262 |
|
17359 | 263 |
|
264 |
(* current goal *) |
|
265 |
||
266 |
fun current_goal state = |
|
267 |
(case current state of |
|
268 |
{context, goal = SOME (Goal goal), ...} => (context, goal) |
|
18678 | 269 |
| _ => error "No current goal!"); |
5820 | 270 |
|
17359 | 271 |
fun assert_current_goal g state = |
272 |
let val g' = can current_goal state in |
|
18678 | 273 |
if g andalso not g' then error "No goal in this block!" |
274 |
else if not g andalso g' then error "Goal present in this block!" |
|
17359 | 275 |
else state |
276 |
end; |
|
6776 | 277 |
|
17359 | 278 |
fun put_goal goal = map_current (fn (ctxt, using, mode, _) => (ctxt, using, mode, goal)); |
279 |
||
17859 | 280 |
val before_qed = #before_qed o #2 o current_goal; |
281 |
||
17359 | 282 |
|
283 |
(* nested goal *) |
|
5820 | 284 |
|
17359 | 285 |
fun map_goal f g (State (Node {context, facts, mode, goal = SOME goal}, nodes)) = |
286 |
let |
|
24543 | 287 |
val Goal {statement, messages, using, goal, before_qed, after_qed} = goal; |
288 |
val goal' = make_goal (g (statement, messages, using, goal, before_qed, after_qed)); |
|
17359 | 289 |
in State (make_node (f context, facts, mode, SOME goal'), nodes) end |
290 |
| map_goal f g (State (nd, node :: nodes)) = |
|
291 |
let val State (node', nodes') = map_goal f g (State (node, nodes)) |
|
292 |
in map_context f (State (nd, node' :: nodes')) end |
|
293 |
| map_goal _ _ state = state; |
|
5820 | 294 |
|
24556 | 295 |
fun set_goal goal = map_goal I (fn (statement, _, using, _, before_qed, after_qed) => |
296 |
(statement, [], using, goal, before_qed, after_qed)); |
|
19188 | 297 |
|
24543 | 298 |
fun goal_message msg = map_goal I (fn (statement, messages, using, goal, before_qed, after_qed) => |
299 |
(statement, msg :: messages, using, goal, before_qed, after_qed)); |
|
300 |
||
24556 | 301 |
fun using_facts using = map_goal I (fn (statement, _, _, goal, before_qed, after_qed) => |
302 |
(statement, [], using, goal, before_qed, after_qed)); |
|
17359 | 303 |
|
304 |
local |
|
305 |
fun find i state = |
|
306 |
(case try current_goal state of |
|
307 |
SOME (ctxt, goal) => (ctxt, (i, goal)) |
|
18678 | 308 |
| NONE => find (i + 1) (close_block state handle ERROR _ => error "No goal present")); |
17359 | 309 |
in val find_goal = find 0 end; |
310 |
||
311 |
fun get_goal state = |
|
312 |
let val (ctxt, (_, {using, goal, ...})) = find_goal state |
|
313 |
in (ctxt, (using, goal)) end; |
|
5820 | 314 |
|
315 |
||
316 |
||
12423 | 317 |
(** pretty_state **) |
5820 | 318 |
|
32738 | 319 |
val show_main_goal = Unsynchronized.ref false; |
16539 | 320 |
val verbose = ProofContext.verbose; |
13698 | 321 |
|
15531 | 322 |
fun pretty_facts _ _ NONE = [] |
323 |
| 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
|
324 |
[Pretty.big_list (s ^ "this:") (map (Display.pretty_thm ctxt) ths), Pretty.str ""]; |
6756 | 325 |
|
17359 | 326 |
fun pretty_state nr state = |
5820 | 327 |
let |
17359 | 328 |
val {context, facts, mode, goal = _} = current state; |
5820 | 329 |
|
330 |
fun levels_up 0 = "" |
|
17359 | 331 |
| levels_up 1 = "1 level up" |
332 |
| levels_up i = string_of_int i ^ " levels up"; |
|
5820 | 333 |
|
11556 | 334 |
fun subgoals 0 = "" |
17359 | 335 |
| subgoals 1 = "1 subgoal" |
336 |
| subgoals n = string_of_int n ^ " subgoals"; |
|
337 |
||
338 |
fun description strs = |
|
28375 | 339 |
(case filter_out (fn s => s = "") strs of [] => "" |
17359 | 340 |
| strs' => enclose " (" ")" (commas strs')); |
12146 | 341 |
|
29416 | 342 |
fun prt_goal (SOME (ctxt, (i, |
343 |
{statement = ((_, pos), _, _), messages, using, goal, before_qed = _, after_qed = _}))) = |
|
17359 | 344 |
pretty_facts "using " ctxt |
345 |
(if mode <> Backward orelse null using then NONE else SOME using) @ |
|
21442 | 346 |
[Pretty.str ("goal" ^ |
347 |
description [levels_up (i div 2), subgoals (Thm.nprems_of goal)] ^ ":")] @ |
|
32187 | 348 |
Goal_Display.pretty_goals ctxt |
32167
d32817dda0e6
Display_Goal.pretty_goals: always Markup.subgoal, clarified options;
wenzelm
parents:
32145
diff
changeset
|
349 |
{total = true, main = ! show_main_goal, maxgoals = ! Display.goals_limit} goal @ |
25958 | 350 |
(map (fn msg => Position.setmp_thread_data pos msg ()) (rev messages)) |
17359 | 351 |
| prt_goal NONE = []; |
6848 | 352 |
|
17359 | 353 |
val prt_ctxt = |
354 |
if ! verbose orelse mode = Forward then ProofContext.pretty_context context |
|
18670 | 355 |
else if mode = Backward then ProofContext.pretty_ctxt context |
7575 | 356 |
else []; |
17359 | 357 |
in |
358 |
[Pretty.str ("proof (" ^ mode_name mode ^ "): step " ^ string_of_int nr ^ |
|
359 |
(if ! verbose then ", depth " ^ string_of_int (level state div 2 - 1) else "")), |
|
360 |
Pretty.str ""] @ |
|
361 |
(if null prt_ctxt then [] else prt_ctxt @ [Pretty.str ""]) @ |
|
362 |
(if ! verbose orelse mode = Forward then |
|
363 |
pretty_facts "" context facts @ prt_goal (try find_goal state) |
|
364 |
else if mode = Chain then pretty_facts "picking " context facts |
|
365 |
else prt_goal (try find_goal state)) |
|
366 |
end; |
|
5820 | 367 |
|
12085 | 368 |
fun pretty_goals main state = |
32167
d32817dda0e6
Display_Goal.pretty_goals: always Markup.subgoal, clarified options;
wenzelm
parents:
32145
diff
changeset
|
369 |
let val (ctxt, (_, goal)) = get_goal state in |
32187 | 370 |
Goal_Display.pretty_goals ctxt |
32167
d32817dda0e6
Display_Goal.pretty_goals: always Markup.subgoal, clarified options;
wenzelm
parents:
32145
diff
changeset
|
371 |
{total = false, main = main, maxgoals = ! Display.goals_limit} goal |
d32817dda0e6
Display_Goal.pretty_goals: always Markup.subgoal, clarified options;
wenzelm
parents:
32145
diff
changeset
|
372 |
end; |
10320 | 373 |
|
5820 | 374 |
|
375 |
||
376 |
(** proof steps **) |
|
377 |
||
17359 | 378 |
(* refine via method *) |
5820 | 379 |
|
8234 | 380 |
local |
381 |
||
16146 | 382 |
fun goalN i = "goal" ^ string_of_int i; |
383 |
fun goals st = map goalN (1 upto Thm.nprems_of st); |
|
384 |
||
385 |
fun no_goal_cases st = map (rpair NONE) (goals st); |
|
386 |
||
387 |
fun goal_cases st = |
|
34916
f625d8d6fcf3
Eliminated is_open option of Rule_Cases.make_nested/make_common;
berghofe
parents:
34239
diff
changeset
|
388 |
Rule_Cases.make_common (Thm.theory_of_thm st, Thm.prop_of st) (map (rpair []) (goals st)); |
16146 | 389 |
|
32193
c314b4836031
basic method application: avoid Position.setmp_thread_data_seq, which destroys transaction context;
wenzelm
parents:
32187
diff
changeset
|
390 |
fun apply_method current_context meth state = |
6848 | 391 |
let |
24556 | 392 |
val (goal_ctxt, (_, {statement, messages = _, using, goal, before_qed, after_qed})) = |
24543 | 393 |
find_goal state; |
25958 | 394 |
val ctxt = if current_context then context_of state else goal_ctxt; |
16146 | 395 |
in |
32193
c314b4836031
basic method application: avoid Position.setmp_thread_data_seq, which destroys transaction context;
wenzelm
parents:
32187
diff
changeset
|
396 |
Method.apply meth ctxt using goal |> Seq.map (fn (meth_cases, goal') => |
6848 | 397 |
state |
16146 | 398 |
|> map_goal |
18475 | 399 |
(ProofContext.add_cases false (no_goal_cases goal @ goal_cases goal') #> |
400 |
ProofContext.add_cases true meth_cases) |
|
24556 | 401 |
(K (statement, [], using, goal', before_qed, after_qed))) |
16146 | 402 |
end; |
5820 | 403 |
|
19188 | 404 |
fun select_goals n meth state = |
19224 | 405 |
state |
406 |
|> (#2 o #2 o get_goal) |
|
21687 | 407 |
|> ALLGOALS Goal.conjunction_tac |
19224 | 408 |
|> Seq.maps (fn goal => |
19188 | 409 |
state |
21687 | 410 |
|> Seq.lift set_goal (Goal.extract 1 n goal |> Seq.maps (Goal.conjunction_tac 1)) |
19188 | 411 |
|> Seq.maps meth |
412 |
|> Seq.maps (fn state' => state' |
|
413 |
|> 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
|
414 |
|> Seq.maps (apply_method true (K Method.succeed))); |
19188 | 415 |
|
17112 | 416 |
fun apply_text cc text state = |
417 |
let |
|
418 |
val thy = theory_of state; |
|
419 |
||
32193
c314b4836031
basic method application: avoid Position.setmp_thread_data_seq, which destroys transaction context;
wenzelm
parents:
32187
diff
changeset
|
420 |
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
|
421 |
| 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
|
422 |
| eval (Method.Source_i src) = apply_method cc (Method.method_i thy src) |
17112 | 423 |
| eval (Method.Then txts) = Seq.EVERY (map eval txts) |
424 |
| eval (Method.Orelse txts) = Seq.FIRST (map eval txts) |
|
425 |
| eval (Method.Try txt) = Seq.TRY (eval txt) |
|
19188 | 426 |
| eval (Method.Repeat1 txt) = Seq.REPEAT1 (eval txt) |
427 |
| eval (Method.SelectGoals (n, txt)) = select_goals n (eval txt); |
|
17112 | 428 |
in eval text state end; |
429 |
||
8234 | 430 |
in |
431 |
||
17112 | 432 |
val refine = apply_text true; |
433 |
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
|
434 |
fun refine_insert ths = Seq.hd o refine (Method.Basic (K (Method.insert ths))); |
18908 | 435 |
|
8234 | 436 |
end; |
437 |
||
5820 | 438 |
|
17359 | 439 |
(* refine via sub-proof *) |
440 |
||
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
|
441 |
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
|
442 |
| 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
|
443 |
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
|
444 |
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
|
445 |
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
|
446 |
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
|
447 |
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
|
448 |
|
20208 | 449 |
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
|
450 |
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
|
451 |
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
|
452 |
finish_tac (Thm.nprems_of rule); |
11816 | 453 |
|
19915 | 454 |
fun refine_goals print_rule inner raw_rules state = |
455 |
let |
|
456 |
val (outer, (_, goal)) = get_goal state; |
|
20208 | 457 |
fun refine rule st = (print_rule outer rule; FINDGOAL (goal_tac rule) st); |
19915 | 458 |
in |
459 |
raw_rules |
|
20309 | 460 |
|> ProofContext.goal_export inner outer |
461 |
|> (fn rules => Seq.lift set_goal (EVERY (map refine rules) goal) state) |
|
19915 | 462 |
end; |
17359 | 463 |
|
6932 | 464 |
|
17359 | 465 |
(* conclude_goal *) |
6932 | 466 |
|
28627
63663cfa297c
conclude_goal: precise goal context, include all sorts from context into statement, check shyps of result;
wenzelm
parents:
28458
diff
changeset
|
467 |
fun conclude_goal ctxt goal propss = |
5820 | 468 |
let |
28627
63663cfa297c
conclude_goal: precise goal context, include all sorts from context into statement, check shyps of result;
wenzelm
parents:
28458
diff
changeset
|
469 |
val thy = ProofContext.theory_of ctxt; |
24920 | 470 |
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
|
471 |
val string_of_thm = Display.string_of_thm ctxt; |
5820 | 472 |
|
17359 | 473 |
val ngoals = Thm.nprems_of goal; |
19774
5fe7731d0836
allow non-trivial schematic goals (via embedded term vars);
wenzelm
parents:
19585
diff
changeset
|
474 |
val _ = ngoals = 0 orelse error (Pretty.string_of (Pretty.chunks |
32187 | 475 |
(Goal_Display.pretty_goals ctxt |
32167
d32817dda0e6
Display_Goal.pretty_goals: always Markup.subgoal, clarified options;
wenzelm
parents:
32145
diff
changeset
|
476 |
{total = true, main = ! show_main_goal, maxgoals = ! Display.goals_limit} goal @ |
23639 | 477 |
[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
|
478 |
|
9c40a144ee0e
moved basic assumption operations from structure ProofContext to Assumption;
wenzelm
parents:
20208
diff
changeset
|
479 |
val extra_hyps = Assumption.extra_hyps ctxt goal; |
9c40a144ee0e
moved basic assumption operations from structure ProofContext to Assumption;
wenzelm
parents:
20208
diff
changeset
|
480 |
val _ = null extra_hyps orelse |
9c40a144ee0e
moved basic assumption operations from structure ProofContext to Assumption;
wenzelm
parents:
20208
diff
changeset
|
481 |
error ("Additional hypotheses:\n" ^ cat_lines (map string_of_term extra_hyps)); |
5820 | 482 |
|
23418 | 483 |
fun lost_structure () = error ("Lost goal structure:\n" ^ string_of_thm goal); |
484 |
||
23782
4dd0ba632e40
Proof terms for meta-conjunctions are now normalized before
berghofe
parents:
23639
diff
changeset
|
485 |
val th = Goal.conclude |
23806 | 486 |
(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
|
487 |
handle THM _ => lost_structure (); |
23418 | 488 |
val goal_propss = filter_out null propss; |
489 |
val results = |
|
490 |
Conjunction.elim_balanced (length goal_propss) th |
|
491 |
|> map2 Conjunction.elim_balanced (map length goal_propss) |
|
492 |
handle THM _ => lost_structure (); |
|
493 |
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
|
494 |
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
|
495 |
val _ = Thm.check_shyps (Variable.sorts_of ctxt) th; |
23418 | 496 |
|
497 |
fun recover_result ([] :: pss) thss = [] :: recover_result pss thss |
|
498 |
| recover_result (_ :: pss) (ths :: thss) = ths :: recover_result pss thss |
|
499 |
| recover_result [] [] = [] |
|
500 |
| recover_result _ _ = lost_structure (); |
|
501 |
in recover_result propss results end; |
|
5820 | 502 |
|
503 |
||
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
|
504 |
(* 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
|
505 |
|
bd3f30da7bc1
replaced slightly odd get_goal/flat_goal by explicit goal views that correspond to the usual method categories;
wenzelm
parents:
33165
diff
changeset
|
506 |
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
|
507 |
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
|
508 |
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
|
509 |
|
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 |
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
|
511 |
|
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 |
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
|
513 |
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
|
514 |
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
|
515 |
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
|
516 |
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
|
517 |
|
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 |
|
5820 | 519 |
|
520 |
(*** structured proof commands ***) |
|
521 |
||
17112 | 522 |
(** context elements **) |
5820 | 523 |
|
36324 | 524 |
(* let bindings *) |
5820 | 525 |
|
16813 | 526 |
local |
527 |
||
17359 | 528 |
fun gen_bind bind args state = |
5820 | 529 |
state |
530 |
|> assert_forward |
|
36324 | 531 |
|> map_context (bind true args #> snd) |
17359 | 532 |
|> put_facts NONE; |
5820 | 533 |
|
16813 | 534 |
in |
535 |
||
36324 | 536 |
val let_bind = gen_bind ProofContext.match_bind_i; |
537 |
val let_bind_cmd = gen_bind ProofContext.match_bind; |
|
5820 | 538 |
|
16813 | 539 |
end; |
540 |
||
5820 | 541 |
|
17359 | 542 |
(* fix *) |
9196 | 543 |
|
12714 | 544 |
local |
545 |
||
30763
6976521b4263
renamed ProofContext.add_fixes_i to ProofContext.add_fixes, eliminated obsolete external version;
wenzelm
parents:
30761
diff
changeset
|
546 |
fun gen_fix prep_vars args = |
17359 | 547 |
assert_forward |
30763
6976521b4263
renamed ProofContext.add_fixes_i to ProofContext.add_fixes, eliminated obsolete external version;
wenzelm
parents:
30761
diff
changeset
|
548 |
#> map_context (fn ctxt => snd (ProofContext.add_fixes (prep_vars ctxt args) ctxt)) |
17359 | 549 |
#> put_facts NONE; |
5820 | 550 |
|
16813 | 551 |
in |
552 |
||
36323
655e2d74de3a
modernized naming conventions of main Isar proof elements;
wenzelm
parents:
36322
diff
changeset
|
553 |
val fix = gen_fix (K I); |
655e2d74de3a
modernized naming conventions of main Isar proof elements;
wenzelm
parents:
36322
diff
changeset
|
554 |
val fix_cmd = gen_fix (fn ctxt => fn args => fst (ProofContext.read_vars args ctxt)); |
5820 | 555 |
|
16813 | 556 |
end; |
557 |
||
5820 | 558 |
|
17359 | 559 |
(* assume etc. *) |
5820 | 560 |
|
16813 | 561 |
local |
562 |
||
17112 | 563 |
fun gen_assume asm prep_att exp args state = |
5820 | 564 |
state |
565 |
|> assert_forward |
|
17112 | 566 |
|> map_context_result (asm exp (Attrib.map_specs (prep_att (theory_of state)) args)) |
17359 | 567 |
|> these_factss [] |> #2; |
6932 | 568 |
|
16813 | 569 |
in |
570 |
||
36323
655e2d74de3a
modernized naming conventions of main Isar proof elements;
wenzelm
parents:
36322
diff
changeset
|
571 |
val assm = gen_assume ProofContext.add_assms_i (K I); |
655e2d74de3a
modernized naming conventions of main Isar proof elements;
wenzelm
parents:
36322
diff
changeset
|
572 |
val assm_cmd = gen_assume ProofContext.add_assms Attrib.attribute; |
655e2d74de3a
modernized naming conventions of main Isar proof elements;
wenzelm
parents:
36322
diff
changeset
|
573 |
val assume = assm Assumption.assume_export; |
655e2d74de3a
modernized naming conventions of main Isar proof elements;
wenzelm
parents:
36322
diff
changeset
|
574 |
val assume_cmd = assm_cmd Assumption.assume_export; |
655e2d74de3a
modernized naming conventions of main Isar proof elements;
wenzelm
parents:
36322
diff
changeset
|
575 |
val presume = assm Assumption.presume_export; |
655e2d74de3a
modernized naming conventions of main Isar proof elements;
wenzelm
parents:
36322
diff
changeset
|
576 |
val presume_cmd = assm_cmd Assumption.presume_export; |
5820 | 577 |
|
16813 | 578 |
end; |
579 |
||
7271 | 580 |
|
17359 | 581 |
(* def *) |
11891 | 582 |
|
16813 | 583 |
local |
584 |
||
20913 | 585 |
fun gen_def prep_att prep_vars prep_binds args state = |
11891 | 586 |
let |
587 |
val _ = assert_forward state; |
|
17112 | 588 |
val thy = theory_of state; |
11891 | 589 |
|
20913 | 590 |
val (raw_name_atts, (raw_vars, raw_rhss)) = args |> split_list ||> split_list; |
591 |
val name_atts = map (apsnd (map (prep_att thy))) raw_name_atts; |
|
11891 | 592 |
in |
20913 | 593 |
state |
594 |
|> map_context_result (prep_vars (map (fn (x, mx) => (x, NONE, mx)) raw_vars)) |
|
595 |
|>> map (fn (x, _, mx) => (x, mx)) |
|
596 |
|-> (fn vars => |
|
597 |
map_context_result (prep_binds false (map swap raw_rhss)) |
|
35624 | 598 |
#-> (fn rhss => map_context_result (Local_Defs.add_defs (vars ~~ (name_atts ~~ rhss))))) |
20913 | 599 |
|-> (put_facts o SOME o map (#2 o #2)) |
11891 | 600 |
end; |
601 |
||
16813 | 602 |
in |
603 |
||
36323
655e2d74de3a
modernized naming conventions of main Isar proof elements;
wenzelm
parents:
36322
diff
changeset
|
604 |
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
|
605 |
val def_cmd = gen_def Attrib.attribute ProofContext.read_vars ProofContext.match_bind; |
11891 | 606 |
|
16813 | 607 |
end; |
608 |
||
11891 | 609 |
|
8374 | 610 |
|
17112 | 611 |
(** facts **) |
5820 | 612 |
|
17359 | 613 |
(* chain *) |
5820 | 614 |
|
24011 | 615 |
fun clean_facts ctxt = |
24050 | 616 |
put_facts (SOME (filter_out Thm.is_dummy (the_facts ctxt))) ctxt; |
24011 | 617 |
|
17359 | 618 |
val chain = |
619 |
assert_forward |
|
24011 | 620 |
#> clean_facts |
17359 | 621 |
#> enter_chain; |
5820 | 622 |
|
17359 | 623 |
fun chain_facts facts = |
624 |
put_facts (SOME facts) |
|
625 |
#> chain; |
|
5820 | 626 |
|
627 |
||
17359 | 628 |
(* note etc. *) |
17112 | 629 |
|
28965 | 630 |
fun no_binding args = map (pair (Binding.empty, [])) args; |
17112 | 631 |
|
632 |
local |
|
633 |
||
30760
0fffc66b10d7
simplified references to facts, eliminated external note_thmss;
wenzelm
parents:
30757
diff
changeset
|
634 |
fun gen_thmss more_facts opt_chain opt_result prep_atts prep_fact args state = |
17112 | 635 |
state |
636 |
|> assert_forward |
|
30761
ac7570d80c3d
renamed ProofContext.note_thmss_i to ProofContext.note_thmss, eliminated obsolete external version;
wenzelm
parents:
30760
diff
changeset
|
637 |
|> map_context_result (ProofContext.note_thmss "" |
30760
0fffc66b10d7
simplified references to facts, eliminated external note_thmss;
wenzelm
parents:
30757
diff
changeset
|
638 |
(Attrib.map_facts_refs (prep_atts (theory_of state)) (prep_fact (context_of state)) args)) |
17112 | 639 |
|> these_factss (more_facts state) |
17359 | 640 |
||> opt_chain |
641 |
|> opt_result; |
|
17112 | 642 |
|
643 |
in |
|
644 |
||
36323
655e2d74de3a
modernized naming conventions of main Isar proof elements;
wenzelm
parents:
36322
diff
changeset
|
645 |
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
|
646 |
val note_thmss_cmd = gen_thmss (K []) I #2 Attrib.attribute ProofContext.get_fact; |
17112 | 647 |
|
36323
655e2d74de3a
modernized naming conventions of main Isar proof elements;
wenzelm
parents:
36322
diff
changeset
|
648 |
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
|
649 |
val from_thmss_cmd = gen_thmss (K []) chain #2 Attrib.attribute ProofContext.get_fact o no_binding; |
17359 | 650 |
|
36323
655e2d74de3a
modernized naming conventions of main Isar proof elements;
wenzelm
parents:
36322
diff
changeset
|
651 |
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
|
652 |
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
|
653 |
|
0fffc66b10d7
simplified references to facts, eliminated external note_thmss;
wenzelm
parents:
30757
diff
changeset
|
654 |
val local_results = gen_thmss (K []) I I (K I) (K I) o map (apsnd Thm.simple_fact); |
17359 | 655 |
|
36323
655e2d74de3a
modernized naming conventions of main Isar proof elements;
wenzelm
parents:
36322
diff
changeset
|
656 |
fun get_thmss_cmd state srcs = the_facts (note_thmss_cmd [((Binding.empty, []), srcs)] state); |
17112 | 657 |
|
658 |
end; |
|
659 |
||
660 |
||
18548 | 661 |
(* using/unfolding *) |
17112 | 662 |
|
663 |
local |
|
664 |
||
30760
0fffc66b10d7
simplified references to facts, eliminated external note_thmss;
wenzelm
parents:
30757
diff
changeset
|
665 |
fun gen_using f g prep_atts prep_fact args state = |
17112 | 666 |
state |
667 |
|> assert_backward |
|
21442 | 668 |
|> map_context_result |
30761
ac7570d80c3d
renamed ProofContext.note_thmss_i to ProofContext.note_thmss, eliminated obsolete external version;
wenzelm
parents:
30760
diff
changeset
|
669 |
(ProofContext.note_thmss "" |
30760
0fffc66b10d7
simplified references to facts, eliminated external note_thmss;
wenzelm
parents:
30757
diff
changeset
|
670 |
(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
|
671 |
(no_binding args))) |
18843 | 672 |
|> (fn (named_facts, state') => |
24556 | 673 |
state' |> map_goal I (fn (statement, _, using, goal, before_qed, after_qed) => |
18843 | 674 |
let |
675 |
val ctxt = context_of state'; |
|
19482
9f11af8f7ef9
tuned basic list operators (flat, maps, map_filter);
wenzelm
parents:
19475
diff
changeset
|
676 |
val ths = maps snd named_facts; |
24556 | 677 |
in (statement, [], f ctxt ths using, g ctxt ths goal, before_qed, after_qed) end)); |
18548 | 678 |
|
24050 | 679 |
fun append_using _ ths using = using @ filter_out Thm.is_dummy ths; |
35624 | 680 |
fun unfold_using ctxt ths = map (Local_Defs.unfold ctxt ths); |
681 |
val unfold_goals = Local_Defs.unfold_goals; |
|
17112 | 682 |
|
683 |
in |
|
684 |
||
36323
655e2d74de3a
modernized naming conventions of main Isar proof elements;
wenzelm
parents:
36322
diff
changeset
|
685 |
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
|
686 |
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
|
687 |
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
|
688 |
val unfolding_cmd = gen_using unfold_using unfold_goals Attrib.attribute ProofContext.get_fact; |
17112 | 689 |
|
690 |
end; |
|
691 |
||
692 |
||
693 |
(* case *) |
|
694 |
||
695 |
local |
|
696 |
||
30419
c944e299eaf9
invoke_case: proper qualification of name binding, avoiding old no_base_names;
wenzelm
parents:
30279
diff
changeset
|
697 |
fun qualified_binding a = |
c944e299eaf9
invoke_case: proper qualification of name binding, avoiding old no_base_names;
wenzelm
parents:
30279
diff
changeset
|
698 |
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
|
699 |
|
17112 | 700 |
fun gen_invoke_case prep_att (name, xs, raw_atts) state = |
701 |
let |
|
702 |
val atts = map (prep_att (theory_of state)) raw_atts; |
|
19078 | 703 |
val (asms, state') = state |> map_context_result (fn ctxt => |
704 |
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
|
705 |
val assumptions = asms |> map (fn (a, ts) => ((qualified_binding a, atts), map (rpair []) ts)); |
17112 | 706 |
in |
707 |
state' |
|
36323
655e2d74de3a
modernized naming conventions of main Isar proof elements;
wenzelm
parents:
36322
diff
changeset
|
708 |
|> assume assumptions |
33386 | 709 |
|> bind_terms Auto_Bind.no_facts |
36323
655e2d74de3a
modernized naming conventions of main Isar proof elements;
wenzelm
parents:
36322
diff
changeset
|
710 |
|> `the_facts |-> (fn thms => note_thmss [((Binding.name name, []), [(thms, [])])]) |
17112 | 711 |
end; |
712 |
||
713 |
in |
|
714 |
||
36323
655e2d74de3a
modernized naming conventions of main Isar proof elements;
wenzelm
parents:
36322
diff
changeset
|
715 |
val invoke_case = gen_invoke_case (K I); |
655e2d74de3a
modernized naming conventions of main Isar proof elements;
wenzelm
parents:
36322
diff
changeset
|
716 |
val invoke_case_cmd = gen_invoke_case Attrib.attribute; |
17112 | 717 |
|
718 |
end; |
|
719 |
||
720 |
||
721 |
||
17359 | 722 |
(** proof structure **) |
723 |
||
724 |
(* blocks *) |
|
725 |
||
726 |
val begin_block = |
|
727 |
assert_forward |
|
728 |
#> open_block |
|
729 |
#> put_goal NONE |
|
730 |
#> open_block; |
|
731 |
||
732 |
val next_block = |
|
733 |
assert_forward |
|
734 |
#> close_block |
|
735 |
#> open_block |
|
736 |
#> put_goal NONE |
|
737 |
#> put_facts NONE; |
|
738 |
||
739 |
fun end_block state = |
|
740 |
state |
|
741 |
|> assert_forward |
|
742 |
|> close_block |
|
743 |
|> assert_current_goal false |
|
744 |
|> close_block |
|
745 |
|> export_facts state; |
|
746 |
||
747 |
||
748 |
(* sub-proofs *) |
|
749 |
||
750 |
fun proof opt_text = |
|
751 |
assert_backward |
|
17859 | 752 |
#> refine (the_default Method.default_text opt_text) |
17359 | 753 |
#> Seq.map (using_facts [] #> enter_forward); |
754 |
||
23360 | 755 |
fun end_proof bot txt state = |
756 |
state |
|
757 |
|> assert_forward |
|
758 |
|> assert_bottom bot |
|
759 |
|> close_block |
|
760 |
|> assert_current_goal true |
|
761 |
|> using_facts [] |
|
762 |
|> `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
|
763 |
|> Seq.maps (refine (Method.finish_text txt)); |
17359 | 764 |
|
29383 | 765 |
fun check_result msg sq = |
766 |
(case Seq.pull sq of |
|
767 |
NONE => error msg |
|
768 |
| SOME (s, _) => s); |
|
769 |
||
770 |
fun check_finish sq = check_result "Failed to finish proof" sq; |
|
771 |
||
17359 | 772 |
|
773 |
(* unstructured refinement *) |
|
774 |
||
32193
c314b4836031
basic method application: avoid Position.setmp_thread_data_seq, which destroys transaction context;
wenzelm
parents:
32187
diff
changeset
|
775 |
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
|
776 |
fun prefer i = assert_no_chain #> refine (Method.Basic (K (Method.prefer i))); |
17359 | 777 |
|
778 |
fun apply text = assert_backward #> refine text #> Seq.map (using_facts []); |
|
779 |
fun apply_end text = assert_forward #> refine_end text; |
|
780 |
||
781 |
||
782 |
||
17112 | 783 |
(** goals **) |
784 |
||
17359 | 785 |
(* generic goals *) |
786 |
||
19774
5fe7731d0836
allow non-trivial schematic goals (via embedded term vars);
wenzelm
parents:
19585
diff
changeset
|
787 |
local |
5fe7731d0836
allow non-trivial schematic goals (via embedded term vars);
wenzelm
parents:
19585
diff
changeset
|
788 |
|
36322
81cba3921ba5
goals: simplified handling of implicit variables -- removed obsolete warning;
wenzelm
parents:
35624
diff
changeset
|
789 |
val is_var = |
81cba3921ba5
goals: simplified handling of implicit variables -- removed obsolete warning;
wenzelm
parents:
35624
diff
changeset
|
790 |
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
|
791 |
can (dest_Var o Logic.dest_term); |
81cba3921ba5
goals: simplified handling of implicit variables -- removed obsolete warning;
wenzelm
parents:
35624
diff
changeset
|
792 |
|
81cba3921ba5
goals: simplified handling of implicit variables -- removed obsolete warning;
wenzelm
parents:
35624
diff
changeset
|
793 |
fun implicit_vars props = |
19846 | 794 |
let |
36322
81cba3921ba5
goals: simplified handling of implicit variables -- removed obsolete warning;
wenzelm
parents:
35624
diff
changeset
|
795 |
val (var_props, props') = take_prefix is_var props; |
81cba3921ba5
goals: simplified handling of implicit variables -- removed obsolete warning;
wenzelm
parents:
35624
diff
changeset
|
796 |
val explicit_vars = fold Term.add_vars var_props []; |
81cba3921ba5
goals: simplified handling of implicit variables -- removed obsolete warning;
wenzelm
parents:
35624
diff
changeset
|
797 |
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
|
798 |
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
|
799 |
|
5fe7731d0836
allow non-trivial schematic goals (via embedded term vars);
wenzelm
parents:
19585
diff
changeset
|
800 |
fun refine_terms n = |
30510
4120fc59dd85
unified type Proof.method and pervasive METHOD combinators;
wenzelm
parents:
30419
diff
changeset
|
801 |
refine (Method.Basic (K (RAW_METHOD |
19774
5fe7731d0836
allow non-trivial schematic goals (via embedded term vars);
wenzelm
parents:
19585
diff
changeset
|
802 |
(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
|
803 |
(HEADGOAL (CONJUNCTS (ALLGOALS (rtac Drule.termI)))))))))) |
19774
5fe7731d0836
allow non-trivial schematic goals (via embedded term vars);
wenzelm
parents:
19585
diff
changeset
|
804 |
#> Seq.hd; |
5fe7731d0836
allow non-trivial schematic goals (via embedded term vars);
wenzelm
parents:
19585
diff
changeset
|
805 |
|
5fe7731d0836
allow non-trivial schematic goals (via embedded term vars);
wenzelm
parents:
19585
diff
changeset
|
806 |
in |
17359 | 807 |
|
17859 | 808 |
fun generic_goal prepp kind before_qed after_qed raw_propp state = |
5820 | 809 |
let |
17359 | 810 |
val thy = theory_of state; |
23418 | 811 |
val cert = Thm.cterm_of thy; |
17359 | 812 |
val chaining = can assert_chain state; |
25958 | 813 |
val pos = Position.thread_data (); |
17359 | 814 |
|
815 |
val ((propss, after_ctxt), goal_state) = |
|
5936 | 816 |
state |
817 |
|> assert_forward_or_chain |
|
818 |
|> enter_forward |
|
17359 | 819 |
|> open_block |
17859 | 820 |
|> 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
|
821 |
val props = flat propss; |
15703 | 822 |
|
36322
81cba3921ba5
goals: simplified handling of implicit variables -- removed obsolete warning;
wenzelm
parents:
35624
diff
changeset
|
823 |
val vars = implicit_vars props; |
81cba3921ba5
goals: simplified handling of implicit variables -- removed obsolete warning;
wenzelm
parents:
35624
diff
changeset
|
824 |
val propss' = vars :: propss; |
23418 | 825 |
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
|
826 |
val goal = |
fe6843aa4f5f
more precise is_relevant: requires original main goal, not initial goal state;
wenzelm
parents:
29090
diff
changeset
|
827 |
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
|
828 |
|> 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
|
829 |
val statement = ((kind, pos), propss', Thm.term_of goal); |
18124 | 830 |
val after_qed' = after_qed |>> (fn after_local => |
831 |
fn results => map_context after_ctxt #> after_local results); |
|
5820 | 832 |
in |
17359 | 833 |
goal_state |
21727 | 834 |
|> map_context (init_context #> Variable.set_body true) |
28410 | 835 |
|> put_goal (SOME (make_goal (statement, [], [], Goal.init goal, before_qed, after_qed'))) |
17359 | 836 |
|> map_context (ProofContext.auto_bind_goal props) |
21565 | 837 |
|> chaining ? (`the_facts #-> using_facts) |
17359 | 838 |
|> put_facts NONE |
839 |
|> open_block |
|
840 |
|> put_goal NONE |
|
5820 | 841 |
|> enter_backward |
23418 | 842 |
|> 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
|
843 |
|> null props ? (refine (Method.Basic Method.assumption) #> Seq.hd) |
5820 | 844 |
end; |
845 |
||
29090
bbfac5fd8d78
global_qed: refrain from ProofContext.auto_bind_facts, to avoid
wenzelm
parents:
28981
diff
changeset
|
846 |
fun generic_qed after_ctxt state = |
12503 | 847 |
let |
25958 | 848 |
val (goal_ctxt, {statement, goal, after_qed, ...}) = current_goal state; |
8617
33e2bd53aec3
support Hindley-Milner polymorphisms in binds and facts;
wenzelm
parents:
8582
diff
changeset
|
849 |
val outer_state = state |> close_block; |
33e2bd53aec3
support Hindley-Milner polymorphisms in binds and facts;
wenzelm
parents:
8582
diff
changeset
|
850 |
val outer_ctxt = context_of outer_state; |
33e2bd53aec3
support Hindley-Milner polymorphisms in binds and facts;
wenzelm
parents:
8582
diff
changeset
|
851 |
|
28410 | 852 |
val ((_, pos), stmt, _) = statement; |
18503
841137f20307
goal/qed: proper treatment of two levels of conjunctions;
wenzelm
parents:
18475
diff
changeset
|
853 |
val props = |
19774
5fe7731d0836
allow non-trivial schematic goals (via embedded term vars);
wenzelm
parents:
19585
diff
changeset
|
854 |
flat (tl stmt) |
19915 | 855 |
|> Variable.exportT_terms goal_ctxt outer_ctxt; |
17359 | 856 |
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
|
857 |
tl (conclude_goal goal_ctxt goal stmt) |
20309 | 858 |
|> burrow (ProofContext.export goal_ctxt outer_ctxt); |
17359 | 859 |
in |
860 |
outer_state |
|
29090
bbfac5fd8d78
global_qed: refrain from ProofContext.auto_bind_facts, to avoid
wenzelm
parents:
28981
diff
changeset
|
861 |
|> 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
|
862 |
|> pair (after_qed, results) |
17359 | 863 |
end; |
864 |
||
19774
5fe7731d0836
allow non-trivial schematic goals (via embedded term vars);
wenzelm
parents:
19585
diff
changeset
|
865 |
end; |
5fe7731d0836
allow non-trivial schematic goals (via embedded term vars);
wenzelm
parents:
19585
diff
changeset
|
866 |
|
9469 | 867 |
|
17359 | 868 |
(* local goals *) |
869 |
||
17859 | 870 |
fun local_goal print_results prep_att prepp kind before_qed after_qed stmt state = |
17359 | 871 |
let |
21362
3a2ab1dce297
simplified Proof.theorem(_i) interface -- removed target support;
wenzelm
parents:
21274
diff
changeset
|
872 |
val thy = theory_of state; |
3a2ab1dce297
simplified Proof.theorem(_i) interface -- removed target support;
wenzelm
parents:
21274
diff
changeset
|
873 |
val ((names, attss), propp) = |
3a2ab1dce297
simplified Proof.theorem(_i) interface -- removed target support;
wenzelm
parents:
21274
diff
changeset
|
874 |
Attrib.map_specs (prep_att thy) stmt |> split_list |>> split_list; |
17359 | 875 |
|
18124 | 876 |
fun after_qed' results = |
18808 | 877 |
local_results ((names ~~ attss) ~~ results) |
17359 | 878 |
#-> (fn res => tap (fn st => print_results (context_of st) ((kind, ""), res) : unit)) |
18124 | 879 |
#> after_qed results; |
5820 | 880 |
in |
17359 | 881 |
state |
21362
3a2ab1dce297
simplified Proof.theorem(_i) interface -- removed target support;
wenzelm
parents:
21274
diff
changeset
|
882 |
|> 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
|
883 |
|> tap (Variable.warn_extra_tfrees (context_of state) o context_of) |
5820 | 884 |
end; |
885 |
||
29383 | 886 |
fun local_qeds txt = |
887 |
end_proof false txt |
|
888 |
#> 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
|
889 |
(fn ((after_qed, _), results) => after_qed results)); |
5820 | 890 |
|
29383 | 891 |
fun local_qed txt = local_qeds txt #> check_finish; |
892 |
||
5820 | 893 |
|
17359 | 894 |
(* global goals *) |
895 |
||
21442 | 896 |
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
|
897 |
init ctxt |
29383 | 898 |
|> generic_goal (prepp #> ProofContext.auto_fixes) "" before_qed (K I, after_qed) propp; |
17359 | 899 |
|
36323
655e2d74de3a
modernized naming conventions of main Isar proof elements;
wenzelm
parents:
36322
diff
changeset
|
900 |
val theorem = global_goal ProofContext.bind_propp_schematic_i; |
655e2d74de3a
modernized naming conventions of main Isar proof elements;
wenzelm
parents:
36322
diff
changeset
|
901 |
val theorem_cmd = global_goal ProofContext.bind_propp_schematic; |
12065 | 902 |
|
17359 | 903 |
fun global_qeds txt = |
904 |
end_proof true txt |
|
29090
bbfac5fd8d78
global_qed: refrain from ProofContext.auto_bind_facts, to avoid
wenzelm
parents:
28981
diff
changeset
|
905 |
#> Seq.map (generic_qed (K I) #> (fn (((_, after_qed), results), state) => |
29383 | 906 |
after_qed results (context_of state))); |
17112 | 907 |
|
29383 | 908 |
fun global_qed txt = global_qeds txt #> check_finish; |
12959 | 909 |
|
5820 | 910 |
|
17359 | 911 |
(* concluding steps *) |
17112 | 912 |
|
29383 | 913 |
fun terminal_proof qed initial terminal = |
914 |
proof (SOME initial) #> Seq.maps (qed terminal) #> check_finish; |
|
17112 | 915 |
|
29383 | 916 |
fun local_terminal_proof (text, opt_text) = terminal_proof local_qeds text (opt_text, true); |
17112 | 917 |
val local_default_proof = local_terminal_proof (Method.default_text, NONE); |
918 |
val local_immediate_proof = local_terminal_proof (Method.this_text, NONE); |
|
17359 | 919 |
fun local_skip_proof int = local_terminal_proof (Method.sorry_text int, NONE); |
29383 | 920 |
val local_done_proof = terminal_proof local_qeds Method.done_text (NONE, false); |
17112 | 921 |
|
29383 | 922 |
fun global_terminal_proof (text, opt_text) = terminal_proof global_qeds text (opt_text, true); |
17112 | 923 |
val global_default_proof = global_terminal_proof (Method.default_text, NONE); |
924 |
val global_immediate_proof = global_terminal_proof (Method.this_text, NONE); |
|
17359 | 925 |
fun global_skip_proof int = global_terminal_proof (Method.sorry_text int, NONE); |
29383 | 926 |
val global_done_proof = terminal_proof global_qeds Method.done_text (NONE, false); |
5820 | 927 |
|
6896 | 928 |
|
17359 | 929 |
(* common goal statements *) |
930 |
||
931 |
local |
|
932 |
||
17859 | 933 |
fun gen_have prep_att prepp before_qed after_qed stmt int = |
33389 | 934 |
local_goal (Proof_Display.print_results int) prep_att prepp "have" before_qed after_qed stmt; |
6896 | 935 |
|
17859 | 936 |
fun gen_show prep_att prepp before_qed after_qed stmt int state = |
17359 | 937 |
let |
32738 | 938 |
val testing = Unsynchronized.ref false; |
939 |
val rule = Unsynchronized.ref (NONE: thm option); |
|
17359 | 940 |
fun fail_msg ctxt = |
29383 | 941 |
"Local statement will fail to refine any pending goal" :: |
33389 | 942 |
(case ! rule of NONE => [] | SOME th => [Proof_Display.string_of_rule ctxt "Failed" th]) |
17359 | 943 |
|> cat_lines; |
6896 | 944 |
|
17359 | 945 |
fun print_results ctxt res = |
33389 | 946 |
if ! testing then () else Proof_Display.print_results int ctxt res; |
17359 | 947 |
fun print_rule ctxt th = |
948 |
if ! testing then rule := SOME th |
|
33389 | 949 |
else if int then priority (Proof_Display.string_of_rule ctxt "Successful" th) |
17359 | 950 |
else (); |
951 |
val test_proof = |
|
29383 | 952 |
try (local_skip_proof true) |
28289 | 953 |
|> setmp_noncritical testing true |
23963
c2ee97a963db
moved exception capture/release to structure Exn;
wenzelm
parents:
23806
diff
changeset
|
954 |
|> Exn.capture; |
6896 | 955 |
|
18124 | 956 |
fun after_qed' results = |
19482
9f11af8f7ef9
tuned basic list operators (flat, maps, map_filter);
wenzelm
parents:
19475
diff
changeset
|
957 |
refine_goals print_rule (context_of state) (flat results) |
29383 | 958 |
#> check_result "Failed to refine any pending goal" |
959 |
#> after_qed results; |
|
17359 | 960 |
in |
961 |
state |
|
17859 | 962 |
|> local_goal print_results prep_att prepp "show" before_qed after_qed' stmt |
21565 | 963 |
|> int ? (fn goal_state => |
17359 | 964 |
(case test_proof goal_state of |
23963
c2ee97a963db
moved exception capture/release to structure Exn;
wenzelm
parents:
23806
diff
changeset
|
965 |
Exn.Result (SOME _) => goal_state |
c2ee97a963db
moved exception capture/release to structure Exn;
wenzelm
parents:
23806
diff
changeset
|
966 |
| Exn.Result NONE => error (fail_msg (context_of goal_state)) |
28443 | 967 |
| Exn.Exn Exn.Interrupt => raise Exn.Interrupt |
28458 | 968 |
| Exn.Exn exn => raise Exn.EXCEPTIONS ([exn, ERROR (fail_msg (context_of goal_state))]))) |
17359 | 969 |
end; |
970 |
||
971 |
in |
|
972 |
||
36323
655e2d74de3a
modernized naming conventions of main Isar proof elements;
wenzelm
parents:
36322
diff
changeset
|
973 |
val have = gen_have (K I) ProofContext.bind_propp_i; |
655e2d74de3a
modernized naming conventions of main Isar proof elements;
wenzelm
parents:
36322
diff
changeset
|
974 |
val have_cmd = gen_have Attrib.attribute ProofContext.bind_propp; |
655e2d74de3a
modernized naming conventions of main Isar proof elements;
wenzelm
parents:
36322
diff
changeset
|
975 |
val show = gen_show (K I) ProofContext.bind_propp_i; |
655e2d74de3a
modernized naming conventions of main Isar proof elements;
wenzelm
parents:
36322
diff
changeset
|
976 |
val show_cmd = gen_show Attrib.attribute ProofContext.bind_propp; |
6896 | 977 |
|
5820 | 978 |
end; |
17359 | 979 |
|
28410 | 980 |
|
29385
c96b91bab2e6
future_proof: refined version covers local_future_proof and global_future_proof;
wenzelm
parents:
29383
diff
changeset
|
981 |
|
c96b91bab2e6
future_proof: refined version covers local_future_proof and global_future_proof;
wenzelm
parents:
29383
diff
changeset
|
982 |
(** future proofs **) |
c96b91bab2e6
future_proof: refined version covers local_future_proof and global_future_proof;
wenzelm
parents:
29383
diff
changeset
|
983 |
|
c96b91bab2e6
future_proof: refined version covers local_future_proof and global_future_proof;
wenzelm
parents:
29383
diff
changeset
|
984 |
(* relevant proof states *) |
c96b91bab2e6
future_proof: refined version covers local_future_proof and global_future_proof;
wenzelm
parents:
29383
diff
changeset
|
985 |
|
c96b91bab2e6
future_proof: refined version covers local_future_proof and global_future_proof;
wenzelm
parents:
29383
diff
changeset
|
986 |
fun is_schematic t = |
c96b91bab2e6
future_proof: refined version covers local_future_proof and global_future_proof;
wenzelm
parents:
29383
diff
changeset
|
987 |
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
|
988 |
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
|
989 |
|
c96b91bab2e6
future_proof: refined version covers local_future_proof and global_future_proof;
wenzelm
parents:
29383
diff
changeset
|
990 |
fun schematic_goal state = |
c96b91bab2e6
future_proof: refined version covers local_future_proof and global_future_proof;
wenzelm
parents:
29383
diff
changeset
|
991 |
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
|
992 |
in is_schematic prop end; |
c96b91bab2e6
future_proof: refined version covers local_future_proof and global_future_proof;
wenzelm
parents:
29383
diff
changeset
|
993 |
|
c96b91bab2e6
future_proof: refined version covers local_future_proof and global_future_proof;
wenzelm
parents:
29383
diff
changeset
|
994 |
fun is_relevant state = |
c96b91bab2e6
future_proof: refined version covers local_future_proof and global_future_proof;
wenzelm
parents:
29383
diff
changeset
|
995 |
(case try find_goal state of |
c96b91bab2e6
future_proof: refined version covers local_future_proof and global_future_proof;
wenzelm
parents:
29383
diff
changeset
|
996 |
NONE => true |
c96b91bab2e6
future_proof: refined version covers local_future_proof and global_future_proof;
wenzelm
parents:
29383
diff
changeset
|
997 |
| SOME (_, (_, {statement = (_, _, prop), goal, ...})) => |
c96b91bab2e6
future_proof: refined version covers local_future_proof and global_future_proof;
wenzelm
parents:
29383
diff
changeset
|
998 |
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
|
999 |
|
c96b91bab2e6
future_proof: refined version covers local_future_proof and global_future_proof;
wenzelm
parents:
29383
diff
changeset
|
1000 |
|
c96b91bab2e6
future_proof: refined version covers local_future_proof and global_future_proof;
wenzelm
parents:
29383
diff
changeset
|
1001 |
(* full proofs *) |
28410 | 1002 |
|
29346
fe6843aa4f5f
more precise is_relevant: requires original main goal, not initial goal state;
wenzelm
parents:
29090
diff
changeset
|
1003 |
local |
fe6843aa4f5f
more precise is_relevant: requires original main goal, not initial goal state;
wenzelm
parents:
29090
diff
changeset
|
1004 |
|
29385
c96b91bab2e6
future_proof: refined version covers local_future_proof and global_future_proof;
wenzelm
parents:
29383
diff
changeset
|
1005 |
fun future_proof done get_context fork_proof state = |
28410 | 1006 |
let |
29381
45d77aeb1608
future_terminal_proof: no fork for interactive mode, assert_backward;
wenzelm
parents:
29364
diff
changeset
|
1007 |
val _ = assert_backward state; |
28410 | 1008 |
val (goal_ctxt, (_, goal)) = find_goal state; |
32786 | 1009 |
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
|
1010 |
val goal_txt = prop :: map Thm.term_of (Assumption.all_assms_of goal_ctxt); |
28410 | 1011 |
|
29383 | 1012 |
val _ = is_relevant state andalso error "Cannot fork relevant proof"; |
1013 |
||
29346
fe6843aa4f5f
more precise is_relevant: requires original main goal, not initial goal state;
wenzelm
parents:
29090
diff
changeset
|
1014 |
val prop' = Logic.protect prop; |
fe6843aa4f5f
more precise is_relevant: requires original main goal, not initial goal state;
wenzelm
parents:
29090
diff
changeset
|
1015 |
val statement' = (kind, [[], [prop']], prop'); |
fe6843aa4f5f
more precise is_relevant: requires original main goal, not initial goal state;
wenzelm
parents:
29090
diff
changeset
|
1016 |
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
|
1017 |
(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
|
1018 |
|
33386 | 1019 |
fun after_local' [[th]] = put_thms false (Auto_Bind.thisN, SOME [th]); |
1020 |
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
|
1021 |
val after_qed' = (after_local', after_global'); |
33386 | 1022 |
val this_name = ProofContext.full_name goal_ctxt (Binding.name Auto_Bind.thisN); |
28410 | 1023 |
|
28973
c549650d1442
future proofs: pass actual futures to facilitate composite computations;
wenzelm
parents:
28627
diff
changeset
|
1024 |
val result_ctxt = |
c549650d1442
future proofs: pass actual futures to facilitate composite computations;
wenzelm
parents:
28627
diff
changeset
|
1025 |
state |
32062
457f5bcd3d76
Proof.future_proof: declare all assumptions as well;
wenzelm
parents:
32061
diff
changeset
|
1026 |
|> 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
|
1027 |
|> 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
|
1028 |
|> fork_proof; |
28973
c549650d1442
future proofs: pass actual futures to facilitate composite computations;
wenzelm
parents:
28627
diff
changeset
|
1029 |
|
29385
c96b91bab2e6
future_proof: refined version covers local_future_proof and global_future_proof;
wenzelm
parents:
29383
diff
changeset
|
1030 |
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
|
1031 |
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
|
1032 |
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
|
1033 |
val state' = |
c549650d1442
future proofs: pass actual futures to facilitate composite computations;
wenzelm
parents:
28627
diff
changeset
|
1034 |
state |
c549650d1442
future proofs: pass actual futures to facilitate composite computations;
wenzelm
parents:
28627
diff
changeset
|
1035 |
|> 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
|
1036 |
|> done; |
28973
c549650d1442
future proofs: pass actual futures to facilitate composite computations;
wenzelm
parents:
28627
diff
changeset
|
1037 |
in (Future.map #1 result_ctxt, state') end; |
28410 | 1038 |
|
29385
c96b91bab2e6
future_proof: refined version covers local_future_proof and global_future_proof;
wenzelm
parents:
29383
diff
changeset
|
1039 |
in |
c96b91bab2e6
future_proof: refined version covers local_future_proof and global_future_proof;
wenzelm
parents:
29383
diff
changeset
|
1040 |
|
c96b91bab2e6
future_proof: refined version covers local_future_proof and global_future_proof;
wenzelm
parents:
29383
diff
changeset
|
1041 |
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
|
1042 |
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
|
1043 |
|
17359 | 1044 |
end; |
29346
fe6843aa4f5f
more precise is_relevant: requires original main goal, not initial goal state;
wenzelm
parents:
29090
diff
changeset
|
1045 |
|
29385
c96b91bab2e6
future_proof: refined version covers local_future_proof and global_future_proof;
wenzelm
parents:
29383
diff
changeset
|
1046 |
|
c96b91bab2e6
future_proof: refined version covers local_future_proof and global_future_proof;
wenzelm
parents:
29383
diff
changeset
|
1047 |
(* terminal proofs *) |
c96b91bab2e6
future_proof: refined version covers local_future_proof and global_future_proof;
wenzelm
parents:
29383
diff
changeset
|
1048 |
|
c96b91bab2e6
future_proof: refined version covers local_future_proof and global_future_proof;
wenzelm
parents:
29383
diff
changeset
|
1049 |
local |
c96b91bab2e6
future_proof: refined version covers local_future_proof and global_future_proof;
wenzelm
parents:
29383
diff
changeset
|
1050 |
|
c96b91bab2e6
future_proof: refined version covers local_future_proof and global_future_proof;
wenzelm
parents:
29383
diff
changeset
|
1051 |
fun future_terminal_proof proof1 proof2 meths int state = |
32061
11f8ee55662d
parallel_proofs: more fine-grained control with optional parallel checking of nested Isar proofs;
wenzelm
parents:
32058
diff
changeset
|
1052 |
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
|
1053 |
then proof1 meths state |
32062
457f5bcd3d76
Proof.future_proof: declare all assumptions as well;
wenzelm
parents:
32061
diff
changeset
|
1054 |
else snd (proof2 (fn state' => Future.fork_pri ~1 (fn () => ((), proof1 meths state'))) state); |
29385
c96b91bab2e6
future_proof: refined version covers local_future_proof and global_future_proof;
wenzelm
parents:
29383
diff
changeset
|
1055 |
|
c96b91bab2e6
future_proof: refined version covers local_future_proof and global_future_proof;
wenzelm
parents:
29383
diff
changeset
|
1056 |
in |
c96b91bab2e6
future_proof: refined version covers local_future_proof and global_future_proof;
wenzelm
parents:
29383
diff
changeset
|
1057 |
|
c96b91bab2e6
future_proof: refined version covers local_future_proof and global_future_proof;
wenzelm
parents:
29383
diff
changeset
|
1058 |
fun local_future_terminal_proof x = |
c96b91bab2e6
future_proof: refined version covers local_future_proof and global_future_proof;
wenzelm
parents:
29383
diff
changeset
|
1059 |
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
|
1060 |
|
c96b91bab2e6
future_proof: refined version covers local_future_proof and global_future_proof;
wenzelm
parents:
29383
diff
changeset
|
1061 |
fun global_future_terminal_proof x = |
c96b91bab2e6
future_proof: refined version covers local_future_proof and global_future_proof;
wenzelm
parents:
29383
diff
changeset
|
1062 |
future_terminal_proof global_terminal_proof global_future_proof x; |
29350 | 1063 |
|
29346
fe6843aa4f5f
more precise is_relevant: requires original main goal, not initial goal state;
wenzelm
parents:
29090
diff
changeset
|
1064 |
end; |
fe6843aa4f5f
more precise is_relevant: requires original main goal, not initial goal state;
wenzelm
parents:
29090
diff
changeset
|
1065 |
|
29385
c96b91bab2e6
future_proof: refined version covers local_future_proof and global_future_proof;
wenzelm
parents:
29383
diff
changeset
|
1066 |
end; |
c96b91bab2e6
future_proof: refined version covers local_future_proof and global_future_proof;
wenzelm
parents:
29383
diff
changeset
|
1067 |