src/ZF/Bool.ML
1998-12-28 paulson 1998-12-28 new inductive, datatype and primrec packages, etc.
1998-08-06 paulson 1998-08-06 even more tidying of Goal commands
1998-07-13 paulson 1998-07-13 Huge tidy-up: removal of leading \!\! addsplits split_tac[split_if] now default nat_succI now included by default
1998-06-22 wenzelm 1998-06-22 isatool fixgoal;
1997-11-03 wenzelm 1997-11-03 isatool fixclasimp;
1997-01-08 paulson 1997-01-08 Removal of sum_cs and eq_cs
1997-01-03 paulson 1997-01-03 Implicit simpsets and clasets for FOL and ZF
1996-01-30 clasohm 1996-01-30 expanded tabs
1994-12-07 clasohm 1994-12-07 added qed and qed_goal[w]
1993-11-19 lcp 1993-11-19 expandshort and other trivial changes
1993-11-15 lcp 1993-11-15 boolE: changed to have equality assumptions instead of P(c); proved many boolean laws
1993-10-07 lcp 1993-10-07 added ~: for "not in"
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