src/HOL/Proofs.thy
author wenzelm
Sat, 23 May 2015 17:19:37 +0200
changeset 60299 5ae2a2e74c93
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clarified NEWS: document_files are officially required since Isabelle2014, but the absence was tolerated as legacy feature;
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theory Proofs
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imports Pure
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begin
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ML "Proofterm.proofs := 2"
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end
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