src/ZF/Arith.ML
1993-11-18 lcp 1993-11-18 Misc modifs such as expandshort
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
1993-09-30 lcp 1993-09-30 ex/{bin.ML,comb.ML,prop.ML}: replaced NewSext by Syntax.simple_sext domrange/image_subset,vimage_subset: deleted needless premise! misc: This slightly simplifies two proofs in Schroeder-Bernstein Theorem ind-syntax/rule_concl: recoded to avoid exceptions intr-elim: now checks conclusions of introduction rules func/fun_disjoint_Un: now uses ex_ex1I list-fn/hd,tl,drop: new simpdata/bquant_simps: new list/list_case_type: restored! bool.thy: changed 1 from a "def" to a translation Removed occurreces of one_def in bool.ML, nat.ML, univ.ML, ex/integ.ML nat/succ_less_induct: new induction principle arith/add_mono: new results about monotonicity simpdata/mem_simps: removed the ones for succ and cons; added succI1, consI2 to ZF_ss upair/succ_iff: new, for use with simp_tac (cons_iff already existed) ordinal/Ord_0_in_succ: renamed from Ord_0_mem_succ nat/nat_0_in_succ: new ex/prop-log/hyps_thms_if: split up the fast_tac call for more speed
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