Tue, 03 Apr 2012 20:24:00 +0200 wenzelm avoid duplicate PIDE markup;
Tue, 03 Apr 2012 20:08:08 +0200 wenzelm less intrusive visibility;
Tue, 03 Apr 2012 19:49:14 +0200 wenzelm more robust re-import wrt. non-HHF assumptions;
Tue, 03 Apr 2012 19:33:46 +0200 wenzelm consider polyml-5.3.0 as "experimental" since it chokes on HOL-Codegenerator_Test, while 5.2.1 happens to work;
Tue, 03 Apr 2012 18:22:14 +0200 wenzelm close context elements via Expression.cert/read_declaration;
Tue, 03 Apr 2012 17:48:16 +0200 wenzelm merged
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