use oracle flag from derivation;

rep_thm: 'der' field has additional bool for oracles;

minor corrections

isa: do not touch_all_thys on startup;

coercion "intify" to remove type constraints from integer algebraic laws

tidying and speeding up proofs

*** empty log message ***

*** empty log message ***

used natify with div and mod; also put in the divide-by-zero trick

natify, a coercion to reduce the number of type constraints in arithmetic

tuned msg;

* blast(_tac) now handles actual object-logic rules as assumptions; note that auto(_tac) uses blast(_tac) internally, too; tuned;

added all_eq, imp_eq (for blast);

improved comments; added all_eq, imp_eq (for blast); basic calculational rules;

handle actual object-logic rules by atomizing the goal;

added atomize_goal / atomize_tac;

(un)fold: CHANGED; added atomize_tac;

added has_meta_prems;

tuned;

tuned;

updated 'obtain';

Removed Quot

Never used and not relevant.

obtain;

added split_bind_asm, bind_splits;

adapted obtain; tuned;

removed equalityCE;

added atomic_Trueprop;

updated ObtainFun;

'def': no constraint on variable;

exporter setup for context elements;

export RANGE, hard_asm_tac, soft_asm_tac; export is_chain, assert_forward_or_chain; added the_fact; updated ProofContext.export_wrt;

turned into plain context element; exporter setup;

local_def(_i): no constraint on var; exporter setup;

local_def(_i): no constraint on var;

def: no constraint on var;

added is_judgment; removed atomic_thesis;

ObtainFun (generalized existence reasoning);

ThmDeps.enable;

added sign_of_cterm;

Logic.goal_const;

replaced "Sessions" by "Root";

apply. -> by

* HOL/While

added theory While;

export has_internal; tag some rules as internal;

added thm_deps;

added enter_forward_proof;

export write_graph;

begin_theory: store *copy* of initial theory;

tuned;

intro_elim_tac: bimatch_from;

While functional for defining tail-recursive functions

*** empty log message ***

tuned msg;

Corrected example which still used old primrec syntax.

Replaced force by fast because force may now take forever to fail (due to a recend change of David's)

new constant same_fst

by (CLASIMPSET auto_tac);

added clarify method; removed unofficial improper methods;

added clarsimp method;

tuned;

removed slow, slow_best methods; added clarify, clarsimp methods;

* Isar/Provers: intro/elim/dest attributes: changed intro/intro!/intro!! flags to intro!/intro/intro? (in most cases, one should have to change intro!! to intro? only);

rearranged setup of arithmetic procedures, avoiding global reference values;

lemmas [arith_split] = abs_split (*belongs to theory RealAbs*);

do nat pass theory value, but sg_ref;

avoid referencing thy value; rename_numerals: use implicit theory context; eliminated some simpset_of Int.thy (why needed anyway?);

avoid referencing thy value; rename_numerals: use implicit theory context;

tuned deps;

tuned;

changed deps;

rename_numerals: use implicit theory context;

avoid referencing thy value; lemma_prat_add_mult_mono moved to PRat.ML;

avoid referencing thy value; lemma_prat_add_mult_mono moved here;

avoid referencing thy value; rename_numerals: use implicit theory context; avoid some simpset_of Int.thy (why needed anyway?);

simpset_of NatDef.thy (why anyway?);

avoid referencing thy value; rename_numerals: use implicit theory context;

avoid referencing thy value;

tuned comment;

avoid global references;

do not pass theory values, but sg_ref;

Drule.merge_rules;

get_names: topologically sorted;

removed all_sessions.graph; improved graph 'directories'; tuned;

removed all_sessions;

disallow duplicates in session identifiers;

assimilated;

tuned HeapFun;

tuned ThmHeap;

removed selector syntax -- improper tuples are broken beyond repair :-(

elim?;

classical atts now intro! / intro / intro?;

renamed "Directories" to "Sessions";

tuned;

improved error msg; thm foo.cases;

added ex_someI

much tidying in connection with the 2nd UNITY paper

strengthened force_tac by using new first_best_tac

removed safe_asm_full_simp_tac

added map_upd_nonempty, also to simpset

removed weaker variant of subset_insert_iff

removed safe_asm_full_simp_tac, added generic_simp_tac

Updating of some comments

*** empty log message ***

Univ no longer requires Arith (really it never did)

tuned;

corrected header

changed / to // for quotienting

changed / to // for quotienting; general tidying

renamed // to / (which is what we want anyway) to avoid clash with the new use of // for quotienting

deleted redundant proof

// change; also moved entry for AddIffs

addsplits [split_if];

theorems foo.splits = foo.split foo.split_asm;

removed obsolete expand_if = split_if;

* HOL: removed obsolete expand_if = split_if; theorems if_splits = split_if split_if_asm;

* HOL: removed obsolete expand_if = split_if; theorems if_splits = split_if split_if_asm; datatype package provides theorems foo.splits = foo.split foo.split_asm for each datatype;

replaced arities by instance;

MicroJava structure changed