1996-12-10 ago fixed pris of binder syntax;
1996-11-27 ago symbol names changes;
1996-11-18 ago added symbolfont syntax;
1995-11-07 ago removed quotes from types in consts section
1995-10-05 ago corrected title
1995-03-07 ago Moved declaration of ~= to a syntax section
1994-03-17 ago adapted type definition to new syntax
1993-10-25 ago added white-space;
1993-10-07 ago ifol.thy: added ~= for "not equals"
1993-09-16 ago Initial revision