author | wenzelm |
Sat, 05 Jan 2019 17:24:33 +0100 | |
changeset 69597 | ff784d5a5bfb |
parent 66453 | cc19f7ca2ed6 |
child 70443 | a21a96eda033 |
permissions | -rw-r--r-- |
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(* Title: HOL/Proofs/ex/XML_Data.thy |
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Author: Makarius |
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Author: Stefan Berghofer |
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XML data representation of proof terms. |
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*) |
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theory XML_Data |
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session-qualified theory imports: isabelle imports -U -i -d '~~/src/Benchmarks' -a;
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imports "HOL-Isar_Examples.Drinker" |
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begin |
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subsection \<open>Export and re-import of global proof terms\<close> |
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ML \<open> |
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fun export_proof ctxt thm = |
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Proofterm.encode (Reconstruct.clean_proof_of ctxt true thm); |
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fun import_proof thy xml = |
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let |
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wenzelm
parents:
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val prf = Proofterm.decode xml; |
fe411c1dc180
more robust proof export / import due to Stefan Berghofer;
wenzelm
parents:
52424
diff
changeset
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val (prf', _) = Proofterm.freeze_thaw_prf prf; |
fe411c1dc180
more robust proof export / import due to Stefan Berghofer;
wenzelm
parents:
52424
diff
changeset
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in Drule.export_without_context (Proof_Checker.thm_of_proof thy prf') end; |
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\<close> |
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subsection \<open>Examples\<close> |
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ML \<open>val thy1 = \<^theory>\<close> |
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lemma ex: "A \<longrightarrow> A" .. |
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ML_val \<open> |
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val xml = export_proof \<^context> @{thm ex}; |
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val thm = import_proof thy1 xml; |
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\<close> |
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ML_val \<open> |
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val xml = export_proof \<^context> @{thm de_Morgan}; |
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more robust proof export / import due to Stefan Berghofer;
wenzelm
parents:
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val thm = import_proof thy1 xml; |
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\<close> |
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more robust proof export / import due to Stefan Berghofer;
wenzelm
parents:
52424
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changeset
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ML_val \<open> |
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val xml = export_proof \<^context> @{thm Drinker's_Principle}; |
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more robust proof export / import due to Stefan Berghofer;
wenzelm
parents:
52424
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val thm = import_proof thy1 xml; |
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\<close> |
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wenzelm
parents:
52424
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text \<open>Some fairly large proof:\<close> |
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more robust proof export / import due to Stefan Berghofer;
wenzelm
parents:
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ML_val \<open> |
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val xml = export_proof \<^context> @{thm abs_less_iff}; |
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more robust proof export / import due to Stefan Berghofer;
wenzelm
parents:
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val thm = import_proof thy1 xml; |
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\<^assert> (size (YXML.string_of_body xml) > 1000000); |
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\<close> |
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parents:
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end |