more visibility flags on background naming;

support for explicit scope of private entries;

subtle change of long-standing name space policy: unknown entries are treated as hidden, consequently "private" is understood in the strict sense;

tuned signature;

tuned signature;

tuned -- avoid exotic Name_Space.defined_entry;

tuned;

clarified role of naming for background theory: transform_binding (e.g. for "concealed" flag) uses naming of hypothetical context;

tuned;

tuned message;

more standard Long_Name operations;

tuned;

tuned;

tuned signature;

simplified code

Theorem "arctan" is no longer a default simprule

John Harrison's example: a 32-bit approximation to pi. SLOW

HOL Light Libraries for complex Arctan, Arcsin, Arccos

arcsin and arccos lemmas

NEWS

given up separate type classes demanding `inverse 0 = 0`

Merge

rationalised and generalised some theorems concerning abs and x^2.

added lemmas

Merge

New material and binomial fix

tuned doc

merged

tuned signature;

support for strictly private name space entries; tuned signature;

tuned signature;

export more low-level theorems in data structure (partly for 'corec')

tuned;

merged

more uniform syntax for named instantiations;

merged

added locale for semirings

exposed approximation in ML

clarified NEWS (cf. 97872c658a44);

clarified equality of formal entities;

merged

tuned signature;

ind_cases: clarified preparation of arguments;

support for minimal specifications, with usual treatment of fixes and dummies;

tuned;

tuned;

tuned signature;

proper local Proof_Context.arity_sorts;

more standard Sign.typ_match: sorts should be alright in result of Syntax.check_terms;

avoid low-level tsig operations;

tuned;

clarified context;

rule_insts_schematic is considered legacy and false by default;

tuned;

clarified no_zero_devisors: makes only sense in a semiring; actually turn linorder_semidom into a integral domain

dropped long-outdated comments

merged

clarified goal context;

clarified goal context;

prefer Variable.focus, despite subtle differences of Logic.strip_params vs. Term.strip_all_vars;

proper Rule_Insts.read_term, e.g. to enable case_tac using "_";

tuned signature;

clarified goal context;

clarified doc

more graceful failure if some of the involved BNFs have no data

sort BNFs in output

preserve order of type arguments in pre-FP BNF typedef

register pre-fixpoint BNFs in database to enable lookup later (e.g. in 'corec')

store low-level (un)fold constants

export more functions

restored broken metis proof

distributivity of partial minus establishes desired properties of dvd in semirings

explicit commutative additive inverse operation; more explicit focal point for commutative monoids with an inverse operation

modernized

more multiset theorems

semantic completion for @{system_option};

clarified position;

HOL-SPARK .prv files are subject to system option spark_prv; tuned;

tuned signature;

NEWS;

prefer local fixes;

proper signature; tuned;

dummies may depend on goal params as well;

merged

proper comparison of blobs_info (amending illtyped equality from 86a76300137e) -- avoid redundant update of unchanged commands;

clarified case_tac fixes and context;

clarified name;

option to control old-style schematic mode;

clarified role of Name.uu_, which happens to be the internal replacement of the first underscore under certain assumptions about the context;

tuned;

tuned proof;

admit dummy patterns in instantiations; clarified context;

clarified input source;

tuning

reordered properties

NEWS;