2009-09-29 wenzelm 2009-09-29 explicit indication of Unsynchronized.ref;
2009-08-28 wenzelm 2009-08-28 modernized messages -- eliminated ctyp/cterm operations;
2009-07-15 wenzelm 2009-07-15 more antiquotations;
2008-09-17 wenzelm 2008-09-17 back to dynamic the_context(), because static @{theory} is invalidated if ML environment changes within the same code block;
2008-05-18 wenzelm 2008-05-18 moved global pretty/string_of functions from Sign to Syntax;
2008-05-17 wenzelm 2008-05-17 structure Display: less pervasive operations;
2008-03-29 wenzelm 2008-03-29 replaced 'ML_setup' by 'ML';
2008-02-11 krauss 2008-02-11 Made theory names in ZF disjoint from HOL theory names to allow loading both developments in a single session (but not merge them).