1996-03-06 ago Added 'section' commands
1996-02-09 ago Added qed_spec_mp to avoid renaming of bound vars in 'th RS spec'
1996-01-30 ago expanded tabs
1995-10-04 ago added local simpsets; removed IOA from 'make test'
1995-03-31 ago Defined addss to perform simplification in a claset.
1995-03-20 ago changed syntax of "if"
1995-03-08 ago Enforced partial evaluation of mk_case_split_tac
1995-03-03 ago new version of HOL with curried function application