src/HOL/Proofs/Extraction/Warshall.thy
Mon, 25 Feb 2013 12:17:50 +0100 wenzelm prefer stateless 'ML_val' for tests;
Mon, 06 Sep 2010 14:18:16 +0200 wenzelm more explicit HOL-Proofs sessions, including former ex/Hilbert_Classical.thy which works in parallel mode without the antiquotation option "margin" (which is still critical);
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