Wed, 03 Oct 2012 17:12:08 +0200 wenzelm more error positions;
Wed, 03 Oct 2012 16:59:58 +0200 wenzelm more explicit show_type_constraint, show_sort_constraint;
Wed, 03 Oct 2012 16:59:20 +0200 wenzelm recovered print translation after 'a => bool to 'a set change;
Wed, 03 Oct 2012 16:43:41 +0200 wenzelm tuned;
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