Sun, 25 Oct 2009 19:17:42 +0100 wenzelm more direct access to naming;
Sun, 25 Oct 2009 19:14:46 +0100 wenzelm Name_Space.naming: maintain group and theory_name as well;
Sun, 25 Oct 2009 19:14:25 +0100 wenzelm export is_concealed;
Sun, 25 Oct 2009 19:14:11 +0100 wenzelm merge_list: no exception DUP here;
Sun, 25 Oct 2009 13:20:31 +0100 wenzelm merged
Sun, 25 Oct 2009 13:14:00 +0100 wenzelm more uniform ISABELLE_USEDIR_OPTIONS;
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