2012-04-10 wenzelm 2012-04-10 tuned future priorities: print 0, goal ~1, execute ~2;
2011-11-11 wenzelm 2011-11-11 depth-first proof forking for improved locality (wrt. cancellation and overall memory usage);
2011-11-05 wenzelm 2011-11-05 added Logic.varify_types_global/unvarify_types_global, which avoids somewhat expensive Term.map_types; tuned;
2011-08-19 wenzelm 2011-08-19 tuned;
2011-08-10 wenzelm 2011-08-10 Goal.forked: clarified handling of interrupts;
2011-08-10 wenzelm 2011-08-10 future_job: explicit indication of interrupts;
2011-04-27 wenzelm 2011-04-27 clarified Variable.focus vs. Variable.focus_cterm -- eliminated clone;
2011-04-16 wenzelm 2011-04-16 enable PARALLEL_GOALS more liberally, unlike forked proofs (cf. 34b9652b2f45);
2011-04-16 wenzelm 2011-04-16 refined PARALLEL_GOALS;
2011-04-16 wenzelm 2011-04-16 modernized structure Proof_Context;
2011-02-22 wenzelm 2011-02-22 scale parallel_proofs_threshold with max_threads_value to improve saturation of cores;
2011-02-18 wenzelm 2011-02-18 less verbose tracing;
2011-02-04 wenzelm 2011-02-04 parallelization of nested Isar proofs is subject to Goal.parallel_proofs_threshold;
2011-02-02 wenzelm 2011-02-02 maintain within Task_Queue.task; Task_Queue.dummy_task: id = 0 in accordance to Document.no_id etc.; tuned signature;
2011-01-31 wenzelm 2011-01-31 more specific Goal.fork_name;
2011-01-31 wenzelm 2011-01-31 tuned signature; tuned vacous forks;
2011-01-31 wenzelm 2011-01-31 support named tasks, for improved tracing;
2010-12-17 wenzelm 2010-12-17 renamed structure MetaSimplifier to raw_Simplifer, to emphasize its meaning;
2010-09-03 wenzelm 2010-09-03 pretty_goals: turned some global references and function arguments into configuration options (goals_limit = 10, goals_total = true, show_main_goal = false) depending on the context;
2010-08-30 wenzelm 2010-08-30 tuned messages: discontinued spurious full-stops (messages are occasionally composed unexpectedly);
2010-08-08 wenzelm 2010-08-08 explicitly distinguish Output.status (essential feedback) vs. (useful markup);
2010-08-06 wenzelm 2010-08-06 removed obsolete Goal.local_future_enforced: Toplevel.run_command is no longer interactive, so Goal.local_future_enabled is sufficient (cf. 349e9223c685 and e07dacec79e7);
2010-07-04 wenzelm 2010-07-04 general -- also for Toplevel.async_state;
2010-05-29 wenzelm 2010-05-29 explicit markup for forked goals, as indicated by Goal.fork; accumulate pending forks within command state and hilight accordingly; Isabelle_Process: enforce future_terminal_proof, which gives some impression of non-linear/parallel checking;
2010-05-03 wenzelm 2010-05-03 simplified primitive Thm.future: more direct theory check, do not hardwire strip_shyps here;
2010-05-03 wenzelm 2010-05-03 renamed ProofContext.init to ProofContext.init_global to emphasize that this is not the real thing;
2010-03-20 wenzelm 2010-03-20 renamed varify/unvarify operations to varify_global/unvarify_global to emphasize that these only work in a global situation;
2010-02-07 wenzelm 2010-02-07 renamed old-style Drule.standard to Drule.export_without_context, to emphasize that this is in no way a standard operation;
2009-11-19 wenzelm 2009-11-19 future_result: purge flexflex pairs, which should normally be trivial anyway -- prevent Thm.future_result from complaining about tpairs;
2009-09-30 wenzelm 2009-09-30 PARALLEL_GOALS: proper scope for exception FAILED, with dummy argument to prevent its interpretation as variable;
2009-09-29 wenzelm 2009-09-29 explicit indication of Unsynchronized.ref;
2009-08-12 wenzelm 2009-08-12 added PARALLEL_CHOICE, PARALLEL_GOALS;
2009-07-28 wenzelm 2009-07-28 eliminated separate Future.enabled -- let Future.join fail explicitly in critical section, instead of entering sequential mode silently;
2009-07-26 wenzelm 2009-07-26 Goal.finish: explicit context for printing;
2009-07-25 wenzelm 2009-07-25 renamed structure Display_Goal to Goal_Display;
2009-07-23 wenzelm 2009-07-23 clarified pretty_goals, pretty_thm_aux: plain context; explicit pretty_goals_without_context, print_goals_without_context; tuned;
2009-07-20 wenzelm 2009-07-20 moved pretty_goals etc. to Display_Goal (required by tracing tacticals); load display.ML after assumption.ML, to accomodate proper contextual theorem display;
2009-07-20 wenzelm 2009-07-20 Proof.future_proof: declare all assumptions as well; Proof.future_proof: removed spurious exception_trace (which might cause crash-by-interrupt); replaced Future.fork_local by Future.fork_pri (again, until group exceptions are propagated properly);
2009-07-19 wenzelm 2009-07-19 parallel_proofs: more fine-grained control with optional parallel checking of nested Isar proofs;
2009-07-19 wenzelm 2009-07-19 more abstract Future.is_worker; Future.fork_local: inherit from worker (if available);
2009-07-19 wenzelm 2009-07-19 future_result: explicitly impose Variable.sorts_of again;
2009-03-12 wenzelm 2009-03-12 Assumption.all_prems_of, Assumption.all_assms_of;
2009-01-11 wenzelm 2009-01-11 added Goal.future_enabled abstraction -- now also checks that this is already a future task, which excludes interactive commands of the old toplevel;
2009-01-10 wenzelm 2009-01-10 added parallel_proofs flag (default true, cf. usedir option -Q), which can be disabled in low-memory situations;
2009-01-04 wenzelm 2009-01-04 tuned protect, conclude: Drule.comp_no_flatten;
2009-01-04 wenzelm 2009-01-04 future proofs: back to Future.fork_pri ~1 for improved parallelism;
2008-12-16 wenzelm 2008-12-16 future proofs: Future.fork_pri 1 minimizes queue length and pending promises -- slight improvement of throughput, at the cost of a bit of parallelism;
2008-12-16 wenzelm 2008-12-16 Future.fork_pri;
2008-12-12 wenzelm 2008-12-12 future proofs: more robust check via Future.enabled;
2008-12-04 wenzelm 2008-12-04 future proofs: pass actual futures to facilitate composite computations;
2008-10-16 wenzelm 2008-10-16 prove_common: include all sorts from context into statement, check shyps of result; Drule.norm_hhf_eqs;
2008-10-01 wenzelm 2008-10-01 renamed promise to future, tuned related interfaces;
2008-09-25 wenzelm 2008-09-25 simplified Thm.promise; prove_common: proper context for promise_result;
2008-09-25 wenzelm 2008-09-25 prove: error with original thread position;
2008-09-23 wenzelm 2008-09-23 prove_multi: immediate;
2008-09-23 wenzelm 2008-09-23 added promise_result, prove_promise;
2008-06-14 wenzelm 2008-06-14 prove: full Variable.declare_term, including constraints;
2008-05-18 wenzelm 2008-05-18 moved global pretty/string_of functions from Sign to Syntax;
2008-04-17 wenzelm 2008-04-17 prove_global: Variable.set_body true, pass context;
2008-04-12 wenzelm 2008-04-12 replaced Drule.close_derivation/Goal.close_result by Thm.close_derivation (removed obsolete compression);