2001-05-20 nipkow 2001-05-20 added (no)_type_brackets
2000-12-01 wenzelm 2000-12-01 no_brackets mode;
2000-06-14 wenzelm 2000-06-14 tuned tappl syntax;
2000-05-21 wenzelm 2000-05-21 added sort_of_term; export sortT;
1999-09-07 wenzelm 1999-09-07 logtypes: pretend "dummy" is one;
1999-07-06 wenzelm 1999-07-06 export term_of_typ;
1998-10-20 wenzelm 1998-10-20 no open;
1997-10-10 wenzelm 1997-10-10 added longid syntax;
1997-10-06 wenzelm 1997-10-06 fixed raw_term_sorts (again!); eliminated raise_ast;
1997-02-28 wenzelm 1997-02-28 term_of_... now mark class, tfree, tvar;
1997-02-24 wenzelm 1997-02-24 added "_" syntax for dummyT;
1997-02-06 wenzelm 1997-02-06 improved comments; raw_term_sorts: improved handling of sort constraints (consistency); added term_of_sort; renamed "_emptysort" to "_topsort"; preparations for marking of class idts;
1996-12-18 oheimb 1996-12-18 little improvement for the handling of sort constraints: two non-identical explicit constriants are considered equal if they give the same set in different enumerations, e.g. {term,ord,ord} = {ord,term}
1996-02-16 paulson 1996-02-16 Elimination of fully-functorial style. Type tactic changed to a type abbrevation (from a datatype). Constructor tactic and function apply deleted.
1994-12-08 clasohm 1994-12-08 changed Pure's grammar and the way types are converted to nonterminals
1994-10-12 wenzelm 1994-10-12 removed old comment;
1994-10-04 clasohm 1994-10-04 made major changes to grammar; added call of Type.infer_types to automatically eliminate ambiguities
1994-08-19 wenzelm 1994-08-19 added raw_term_sorts and changed typ_of_term accordingly (part of fix of the typevar-sort-constraint BUG); various minor internal changes;
1994-05-02 wenzelm 1994-05-02 changed translation of type applications according to new grammar;
1994-04-22 clasohm 1994-04-22 changed the way a grammar is generated to allow the new parser to work; also made a lot of changes in parser.ML and minor ones elsewhere
1994-02-03 wenzelm 1994-02-03 minor internal changes;
1994-01-19 wenzelm 1994-01-19 minor internal changes;
1993-10-04 wenzelm 1993-10-04 lots of internal cleaning and tuning; removed {parse,print}_{pre,post}_proc; new lexer: now human readable due to scanner combinators; new parser installed, but still inactive (due to grammar ambiguities); added Syntax.test_read; typ_of_term: sorts now made distinct and sorted; mixfix: added forced line breaks (//); PROP now printed before subterm of type prop with non-const head;
1993-09-16 clasohm 1993-09-16 Initial revision