author | wenzelm |
Sun, 11 Jan 2009 21:49:59 +0100 | |
changeset 29450 | ac7f67be7f1f |
parent 29448 | 34b9652b2f45 |
child 29606 | fedb8be05f24 |
permissions | -rw-r--r-- |
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skip_proof feature 'sorry' (for quick_and_dirty mode only);
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(* Title: Pure/Isar/skip_proof.ML |
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skip_proof feature 'sorry' (for quick_and_dirty mode only);
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ID: $Id$ |
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Author: Markus Wenzel, TU Muenchen |
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skip_proof feature 'sorry' (for quick_and_dirty mode only);
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Skipping proofs -- quick_and_dirty mode. |
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*) |
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signature SKIP_PROOF = |
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sig |
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val make_thm: theory -> term -> thm |
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val cheat_tac: theory -> tactic |
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val prove: Proof.context -> string list -> term list -> term -> |
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({prems: thm list, context: Proof.context} -> tactic) -> thm |
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val prove_global: theory -> string list -> term list -> term -> |
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({prems: thm list, context: Proof.context} -> tactic) -> thm |
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end; |
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skip_proof feature 'sorry' (for quick_and_dirty mode only);
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parents:
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structure SkipProof: SKIP_PROOF = |
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struct |
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(* oracle setup *) |
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val (_, skip_proof) = Context.>>> (Context.map_theory_result |
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(Thm.add_oracle ("skip_proof", fn (thy, prop) => |
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if ! quick_and_dirty then Thm.cterm_of thy prop |
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else error "Proof may be skipped in quick_and_dirty mode only!"))); |
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skip_proof feature 'sorry' (for quick_and_dirty mode only);
wenzelm
parents:
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(* basic cheating *) |
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fun make_thm thy prop = skip_proof (thy, prop); |
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fun cheat_tac thy st = |
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ALLGOALS (Tactic.rtac (make_thm thy (Var (("A", 0), propT)))) st; |
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fun prove ctxt xs asms prop tac = |
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(if Goal.future_enabled () then Goal.prove_future else Goal.prove) ctxt xs asms prop |
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(fn args => fn st => |
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if ! quick_and_dirty |
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then setmp quick_and_dirty true (cheat_tac (ProofContext.theory_of ctxt)) st |
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else tac args st); |
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fun prove_global thy xs asms prop tac = |
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Drule.standard (prove (ProofContext.init thy) xs asms prop tac); |
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end; |