provide dummy thread structures, including proper Thread.getLocal/setLocal; moved task/schedule to Concurrent/schedule.ML;

Thread.getLocal/setLocal;

Scheduling -- multiple threads working on a queue of tasks. formerly in ML-Systems/multithreading_polyml.ML; simplified -- less tracing; use regular Isabelle/ML functions instead of NJ stuff;

added Concurrent/schedule.ML;

update tags

use /home/isabelle/mercurial/bin/hg wrapper;

exclude large .mov files;

simplified add_axiom: no hyps;

discontinued local axioms -- too difficult to implement, too easy to produce nonsense;

axiomatization is now global-only;

added const_decl;

simplified specify_const: canonical args, global deps;

declare_const: Name.binding, store/report position;

Sign.declare_const: Name.binding;

removed ex/Puzzle

added qualified: string -> binding -> binding;

Name.qualified;

theorem dependency hook: check previous state;

added pos_of;

-> AFP

simplified Toplevel.add_hook: cover successful transactions only;

retired Ben Porter's DenumRat in favour of the shorter proof in Real/Rational.thy

made SML/NJ happy;

refined theorem dependency output: previous state needs to contain a theory (not empty toplevel); new_thms_deps: explicity theory values;

* Generic Toplevel.add_hook interface allows to analyze the result of transactions (including failed ones). For example, see src/Pure/ProofGeneral/proof_general_pgip.ML for theorem dependency output of transactions resulting in a new theory state.

Replaced Library/NatPair by Nat_Int_Bij.

added new_thms_deps (operates on global facts, some name_hint approximation); theorem dependency output: Toplevel.add_hook, ProofGeneralPgip.new_thms_deps;

theorem dependency output: Toplevel.add_hook, ProofGeneralPgip.new_thms_deps;