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Pure/Thy/syntax.ML
removed {parse,print}_{pre,post}_proc;
removed 'val ax = ..';

Pure/ROOT.ML
cleaned comments;
removed extraneous 'print_depth 1';
replaced Basic_Syntax by BasicSyntax
added 'use "install_pp.ML"';
Pure/README
fixed comments;
Pure/POLY.ML
Pure/NJ.ML
make_pp: added fbrk;
Pure/install_pp.ML
replaced "Ast" by "Syntax";
Pure/sign.ML
added 'quote' to some error msgs;

lots of internal cleaning and tuning;
removed {parse,print}_{pre,post}_proc;
new lexer: now human readable due to scanner combinators;
new parser installed, but still inactive (due to grammar ambiguities);
added Syntax.test_read;
typ_of_term: sorts now made distinct and sorted;
mixfix: added forced line breaks (//);
PROP now printed before subterm of type prop with non-const head;

asm_full_simp_tac now fails when applied to a state w/o subgoals.

ex/{bin.ML,comb.ML,prop.ML}: replaced NewSext by Syntax.simple_sext
ex/prop-log/hyps_thms_if: split up the fast_tac call for more speed
called expandshort

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

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

Added example from Avron: Gentzen-Type Systems, Resolution and Tableaux, JAR 10

Added ex_ex1I: new introduction rule for the EX! quantifier.

Added MRS, MRL from ZF/ROOT.ML. These support forward proof, resolving a
rule's premises against a list of other proofs.

This commit should not have been necessary. For some reason, the previous
commit did not update genrec.ML. There were still occurrences of SIMP_TAC.
Was the commit perhaps interrupted??

make-all now has set +e so that New Jersey runs will continue even if some
logic fails. change_simp added to help change to new simplifier.

Mon, 20 Sep 1993 17:02:11 +0200
Installation of new simplfier. Previously appeared to set up the old

Installation of new simplfier. Previously appeared to set up the old
simplifier to rewrite with the partial ordering [=, something not possible
with the new simplifier. But such rewriting appears not to have actually
been used, and there were few complications. In terms.ML setloop was used
to avoid infinite rewriting with the letrec rule. Congruence rules were
deleted, and an occasional SIMP_TAC had to become asm_simp_tac.

Installation of new simplifier for ZF/ex. The hom_ss example in misc.ML is
particularly delicate. There is a variable renaming problem in
ramsey.ML/pigeon2_lemma. In some cases, rewriting by typechecking rules
had to be replaced by setsolver type_auto_tac... because only the solver
can instantiate variables.

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.

test commit

added header

defined local addcongs

moved use of Thy/ROOT.ML to end of file because Thy/read.ML needs Thm

changed addcongs to addeqcongs in simplifier.ML

Initial revision