Swing_Thread.now: volatile result to make double-sure;

Document_Model.token_marker: misc tuning and simplification;

added Document.Snapshot.select_markup, which includes command iteration, range conversion etc.; Markup_Tree.select: plain Iterator; misc tuning and simplification;

XML.Cache: intern property keys once and for all (again);

more careful locking of jEdit buffer;

avoid application crash due to wrong requirement -- result is joined, but change not necessarily finished due to extra map;

include Document.History in Document.State -- just one universal session state maintained by main actor; Session.command_change_buffer: thread actor ensures asynchronous dispatch; misc tuning;

volatile variables (in Scala);

non-critical output primitives -- depending on thread-safe TextIO, while races wrt. flushing should not matter;

modernized specifications;

discontinued separate Pure-ProofGeneral keywords session -- protocol commands are already defined in Pure;

discontinued broken no_warnings_CRITICAL -- global output channels must not be changed after startup initialization;

eliminated broken Output.no_warnings_CRITICAL -- context visibility does the job; modernized attribute setup;

more careful treatment of context visibility flag wrt. spurious warnings; misc tuning;

eliminated obsolete Output.no_warnings, where no warnings were produced anyway;

eliminated broken Output.no_warnings_CRITICAL -- context visibility does the job;

more careful treatment of context visibility flag wrt. spurious warnings;

merged

merged

turn off experimental feature per default + avoid exception on "theory constant"

extended relevance filter with first-order term matching

drop chained facts

rename and simplify

cosmetics

renaming + treat "TFree" better in "pattern_for_type"

fix threshold computation + remove "op =" from relevant constants

avoid needless "that" fact

add nameless chained facts to the pool of things known to Sledgehammer

if the goal contains no constants or frees, fall back on chained facts, then on local facts, etc., instead of generating a trivial ATP problem

improve SPASS hack, when a clause comes from several facts

fix Vampire version numbers

lower penalty for Skolem constants

merged

official support for Scala

updated generated files

tuned whitespace

more xsymbols

re-added accidental omission

proper namespace administration for hierarchical modules

more antiquotations;

eliminated Unsynchronized.ref in favour of configuration option; proper naming of thy: theory vs. ctxt: Proof.context; recovered some Isabelle/ML indendation style;

more appropriate name for configuration option "meson_max_clauses" (cf. output of 'pront_configs');

Sum_Of_Squares: proper configuration options;

tuned printed type names, according to ML;

eliminated unnecessary ref;

clarified iter_deepen_limit vs meson (cf. 7c5896919eb8) -- eliminated global ref;

disposed some old debugging tools;

proper configuration option "show_proofs"; modernized syntax translation;

structure Unsynchronized is never opened and set/reset/toggle have been discontinued; retain Unsynchronized.change alias for Proof General;

expanded some aliases from structure Unsynchronized;

merged, resolving some minor conflicts in src/HOL/Tools/Predicate_Compile/code_prolog.ML;

merged

formerly unnamed infix conjunction and disjunction now named HOL.conj and HOL.disj

tuned fact reference

merged

added support for yet another prolog system (yap); generate has only one option ensure_groundness; added one example of yap invocation in example theory

adapted examples; tuned

moving options; tuned

added generation of predicates for size-limited enumeration of values

NEWS

merged

formerly unnamed infix impliciation now named HOL.implies

merged

proper passing of optional module name

For sublocale it is sufficient to reconsider ancestors of the target.

only print qualified implicits

merged

stub for (later) correct deresolving of class method names

tuned serializer interface

private version of commas, cf. printmode

merged

merged

re-added accidental omission

tuned includes

prevent line breaks after Scala symbolic operators

corrected semantics of presentation_stmt_names; do not print includes on presentation selection

code_include Scala: qualify module nmae

merged

preliminary implementation of hierarchical module name space

tuned

proper context for various Thy_Output options, via official configuration options in ML and Isar;

Thy_Output: options based on proper context, although Thy_Output.add_wrapper still allows to maintain old-style wrapper combinators (setmp_CRITICAL etc.);

eliminated old 'local' command;

more uniform descriptions, which end up in the collective output of 'print_attributes' for example;

Fast_Lin_Arith.number_of: more conventional merge that prefers the left side -- note that former ordering wrt. serial numbers makes it depend on accidental load order;

slightly more abstract data handling in Fast_Lin_Arith;

theory data merge: prefer left side uniformly;

tuned;

simplification/standardization of some theory data;

misc tuning and simplification, notably theory data;

renamed Local_Theory.theory(_result) to Local_Theory.background_theory(_result) to emphasize that this belongs to the infrastructure and is rarely appropriate in user-space tools;

renamed ProofContext.theory(_result) to ProofContext.background_theory(_result) to emphasize that this belongs to the infrastructure and is rarely appropriate in user-space tools;

standardized Context.copy_thy to Theory.copy alias, with slightly more direct way of using it;

merged

merged

consider "locality" when assigning weights to facts

add a bonus for chained facts, since they are likely to be relevant; (especially in a Mirabelle run!) -- chained facts used to be included forcibly, then were treated as any other fact; the current approach seems more flexible

merged

add a penalty for lambda-abstractions; the penalty will kick in only when the goal contains no lambdas, in which case Sledgehammer previously totally disallowed any higher-order construct; this was too drastic; lambdas are dangerous because they rapidly lead to unsound proofs; e.g. COMBI_def COMBS_def not_Cons_self2 with explicit_apply

renaming

fiddle with relevance filter

update docs

reorganize options regarding to the relevance threshold and decay

make relevance filter work in term of a "max_relevant" option + use Vampire SOS; "max_relevant" is more reliable than "max_relevant_per_iter"; also made sure that the option is monotone -- larger values should lead to more axioms -- which wasn't always the case before; SOS for Vampire makes a difference of about 3% (i.e. 3% more proofs are found)

simplify more code

cosmetics

get rid of "defs_relevant" feature; nobody uses it and it works poorly

make SML/NJ happy

renamed "relevance_convergence" to "relevance_decay"

make sure that "undo_ascii_of" is the inverse of "ascii_of", also for non-printable characters -- and avoid those in ``-style facts

better workaround for E's off-by-one-second issue

merged

renaming variables to conform to prolog names

changing hotel trace definition; adding simple handling of numerals on natural numbers

added quickcheck generator for prolog generation; first example of counterexample search with prolog for hotel key card system

moving preprocessing to values in prolog generation

invocation of values for prolog execution does not require invocation of code_pred anymore

adding hotel keycard example for prolog generation

improving output of set comprehensions; adding style_check flags

improving ensure_groundness in prolog generation; added further example