Wed, 13 Feb 2013 13:52:06 +0100 wenzelm more thorough error handling of load/save (see also c1be3072ea8f);
Wed, 13 Feb 2013 13:31:38 +0100 wenzelm file system operations for Graphics2D output;
Wed, 13 Feb 2013 12:42:59 +0100 wenzelm updated isabelle-release URLs;
Wed, 13 Feb 2013 13:38:52 +0100 haftmann combinator List.those;
Wed, 13 Feb 2013 13:38:52 +0100 haftmann explicit conversion integer_of_nat already in Code_Numeral_Types;
Wed, 13 Feb 2013 13:38:52 +0100 haftmann IArray ignorant of particular representation of nat
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