2013-12-14 wenzelm 2013-12-14 proper context for basic Simplifier operations: rewrite_rule, rewrite_goals_rule, rewrite_goals_tac etc.; clarified tool context in some boundary cases;
2013-08-23 wenzelm 2013-08-23 added Theory.setup convenience;
2013-07-30 wenzelm 2013-07-30 type theory is purely value-oriented;
2013-05-30 wenzelm 2013-05-30 standardized aliases;
2013-04-10 wenzelm 2013-04-10 more standard module name Axclass (according to file name);
2013-04-10 wenzelm 2013-04-10 formal proof context for axclass proofs; avoid global_simpset_of -- refer to simpset of proof context;
2013-01-08 wenzelm 2013-01-08 tuned;
2013-01-08 wenzelm 2013-01-08 tuned -- prefer high-level Table.merge with its slightly more conservative update;
2013-01-07 wenzelm 2013-01-07 more precise and complete transitive closure of proven_classrel, using existing Sorts.classes_of which is already closed; transfer theorems where they are picked from the theory; tuned;
2013-01-07 wenzelm 2013-01-07 tuned comment -- do not claim anything;
2011-08-20 wenzelm 2011-08-20 refined Graph implementation: more abstract/scalable Graph.Keys instead of plain lists -- order of adjacency is now standardized wrt. Key.ord;
2011-06-09 wenzelm 2011-06-09 tuned signature: Name.invent and Name.invent_names;
2011-04-18 wenzelm 2011-04-18 pass plain Proof.context for pretty printing;
2011-04-18 wenzelm 2011-04-18 simplified pretty printing context, which is only required for certain kernel operations; disentangled dependencies of structure Pretty;
2011-04-17 wenzelm 2011-04-17 report Name_Space.declare/define, relatively to context; added "global" variants of context-dependent declarations;
2011-04-16 wenzelm 2011-04-16 modernized structure Proof_Context;
2010-12-17 wenzelm 2010-12-17 renamed structure MetaSimplifier to raw_Simplifer, to emphasize its meaning;
2010-09-20 wenzelm 2010-09-20 renamed structure PureThy to Pure_Thy and moved most content to Global_Theory, to emphasize that this is global-only;
2010-09-05 wenzelm 2010-09-05 turned show_sorts/show_types into proper configuration options;
2010-09-05 wenzelm 2010-09-05 pretty printing: prefer regular Proof.context over Pretty.pp, which is mostly for special bootstrap purposes involving theory merge, for example;
2010-08-11 haftmann 2010-08-11 tuned whitespace
2010-06-01 haftmann 2010-06-01 avoid store flag in add_* operations
2010-06-01 haftmann 2010-06-01 do not expose store flag of AxClass.add_*
2010-06-01 berghofe 2010-06-01 classrel and arity theorems are now stored under proper name in theory. add_arity and add_classrel take extra boolean argument indicating whether theorems should be stored.
2010-05-15 wenzelm 2010-05-15 eliminated redundant runtime checks;
2010-05-15 krauss 2010-05-15 normalize atyp names after unconstrainT, which may rename atyps arbitrarily;
2010-05-13 wenzelm 2010-05-13 the_classrel/the_arity: avoid Thm.transfer for proofterm version -- theory might already have become stale within the proof_body future;
2010-05-09 wenzelm 2010-05-09 just one version of Thm.unconstrainT, which affects all variables; temporary workaround for Nbe.lift_triv_classes_conv;
2010-05-08 wenzelm 2010-05-08 back-patching of axclass proofs;
2010-05-03 wenzelm 2010-05-03 renamed ProofContext.init to ProofContext.init_global to emphasize that this is not the real thing;
2010-04-28 wenzelm 2010-04-28 made SML/NJ happy;
2010-04-27 wenzelm 2010-04-27 removed obsolete sanity check -- Sign.certify_sort is stable;
2010-04-27 wenzelm 2010-04-27 tuned signature;
2010-04-27 wenzelm 2010-04-27 tuned classrel completion -- bypass composition with reflexive edges;
2010-04-27 wenzelm 2010-04-27 tuned diff_classrels -- avoid slightly inefficient Symreltab.keys;
2010-04-27 wenzelm 2010-04-27 tuned aritiy completion -- slightly less intermediate data structures;
2010-04-27 wenzelm 2010-04-27 clarified proven results: store thm only and retrieve proof later via Thm.proof_of (this may also impact parallelism, because internal join_proofs is deferred);
2010-04-27 wenzelm 2010-04-27 misc tuning and simplification;
2010-04-26 wenzelm 2010-04-26 removed unused AxClass.class_intros;
2010-04-25 wenzelm 2010-04-25 renamed Drule.unconstrainTs to Thm.unconstrain_allTs to accomdate the version by krauss/schropp; less pervasive names;
2010-04-25 wenzelm 2010-04-25 more systematic treatment of data -- avoid slightly odd nested tuples here; tuned;
2010-04-25 wenzelm 2010-04-25 replaced Sorts.rep_algebra by slightly more abstract selectors classes_of/arities_of;
2010-04-25 wenzelm 2010-04-25 misc tuning and simplification;
2010-04-25 wenzelm 2010-04-25 simplified some private bindings;
2010-04-25 wenzelm 2010-04-25 classrel and arity completion by krauss/schropp;
2010-04-11 wenzelm 2010-04-11 Thm.add_axiom/add_def: return internal name of foundational axiom;
2010-03-25 wenzelm 2010-03-25 Sorts.of_sort_derivation: do not use slow Graph.irreducible_paths here, which not always needed (SUBTLE CHANGE IN SEMANTICS); officially export weaken as Sorts.classrel_derivation; tuned comments;
2010-03-25 wenzelm 2010-03-25 removed unused AxClass.of_sort derivation;
2010-03-22 wenzelm 2010-03-22 inlined version of old-style Drule.add_axioms -- Specification.axiom is not bootstrapped yet;
2010-03-22 wenzelm 2010-03-22 replaced PureThy.add_axioms by more basic Drule.add_axiom, which is old-style nonetheless;
2010-03-21 wenzelm 2010-03-21 Logic.mk_of_sort convenience;
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;
2010-03-09 wenzelm 2010-03-09 added ProofContext.tsig_of -- proforma version for local name space only, not logical content; added ProofContext.read_type_name_proper; localized ProofContext.read_class/read_arity/cert_arity; localized ProofContext.class_space/type_space etc.;
2010-02-19 wenzelm 2010-02-19 Thm.def_binding;
2010-02-18 wenzelm 2010-02-18 axclass: more precise treatment of naming vs. binding;
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;
2010-01-04 wenzelm 2010-01-04 discontinued old TheoryDataFun, but retain Theory_Data_PP with is Pretty.pp argument to merge (still required in exotic situations -- hard to get rid of);
2010-01-04 haftmann 2010-01-04 dropped copy operation for legacy TheoryDataFun
2009-11-30 haftmann 2009-11-30 dropped some unused bindings
2009-10-29 wenzelm 2009-10-29 eliminated obsolete/unused Thm.kind_internal/is_internal etc.;