1996-02-06 clasohm 1996-02-06 expanded tabs
1995-12-09 clasohm 1995-12-09 removed quotes from consts and syntax sections
1994-11-29 lcp 1994-11-29 replaced "rules" by "defs"
1993-11-16 clasohm 1993-11-16 made pseudo theories for all ML files; documented dependencies between all thy and ML files
1993-10-05 lcp 1993-10-05 ordinal: DEFINITION of < and le to replace : and <= on ordinals! Many changes epsilon,arith: many changes ordinal/succ_mem_succI/E: deleted; use succ_leI/E nat/nat_0_in_succ: deleted; use nat_0_le univ/Vset_rankI: deleted; use VsetI
1993-09-17 lcp 1993-09-17 Installation of new simplifier for ZF. Deleted all congruence rules not involving local assumptions. NB the congruence rules for Sigma and Pi (dependent type constructions) cause difficulties and are not used by default.
1993-09-16 clasohm 1993-09-16 Initial revision