2010-09-02 wenzelm 2010-09-02 just one refute.ML;
2010-09-02 wenzelm 2010-09-02 use existing Integer.pow, despite its slightly odd argument order;
2010-09-02 wenzelm 2010-09-02 tuned whitespace and indentation, emphasizing the logical structure of this long text;
2010-08-28 haftmann 2010-08-28 formerly unnamed infix equality now named HOL.eq
2010-08-27 haftmann 2010-08-27 formerly unnamed infix conjunction and disjunction now named HOL.conj and HOL.disj
2010-08-26 haftmann 2010-08-26 formerly unnamed infix impliciation now named HOL.implies
2010-08-19 haftmann 2010-08-19 use HOLogic.boolT and @{typ bool} more pervasively
2010-07-01 haftmann 2010-07-01 qualified constants Set.member and Set.Collect
2010-06-28 haftmann 2010-06-28 avoid List.all
2010-06-11 haftmann 2010-06-11 avoid references to old constdefs
2010-06-10 haftmann 2010-06-10 tuned quotes, antiquotations and whitespace
2010-06-08 haftmann 2010-06-08 tuned quotes, antiquotations and whitespace
2010-05-31 blanchet 2010-05-31 move SAT solver warning from every invocation of SAT solver to the tool, Refute, that uses it; "size_change" rarely needs anything beyond "dpll", so this warning is annoying at best, and when "size_change" is called from Nitpick the warning confuses users, who then think that Nitpick is using "dpll" when it's really using MiniSat or some other fast solver
2010-05-25 wenzelm 2010-05-25 eliminated various catch-all exception patterns, guessing at the concrete exeptions that are intended here;
2010-05-05 haftmann 2010-05-05 farewell to old-style mem infixes -- type inference in situations with mem_int and mem_string should provide enough information to resolve the type of (op =)
2010-04-29 blanchet 2010-04-29 expand combinators in Isar proofs constructed by Sledgehammer; this requires shuffling around a couple of functions previously defined in Refute
2010-04-23 blanchet 2010-04-23 remove debugging code
2010-04-13 blanchet 2010-04-13 commented out unsound "lfp"/"gfp" handling + fixed set output syntax; the "lfp"/"gfp" bug can be reproduced by looking for a counterexample to lemma "(A \<union> B)^+ = A^+ \<union> B^+" Refute incorrectly finds a countermodel for cardinality 1 (the smallest counterexample requires cardinality 2).
2010-03-13 wenzelm 2010-03-13 more antiquotations;
2010-02-19 haftmann 2010-02-19 moved remaning class operations from Algebras.thy to Groups.thy
2010-02-10 haftmann 2010-02-10 moved less_eq, less to Orderings.thy; moved abs, sgn to Groups.thy
2010-01-28 haftmann 2010-01-28 new theory Algebras.thy for generic algebraic structures
2009-12-14 blanchet 2009-12-14 added "no_assms" option to Refute, and include structured proof assumptions by default; will do the same for Quickcheck unless there are objections
2009-12-07 blanchet 2009-12-07 better error message in Refute when specifying a non-existing SAT solver
2009-11-30 haftmann 2009-11-30 modernized structures and tuned headers of datatype package modules; joined former datatype.ML and datatype_rep_proofs.ML
2009-11-24 haftmann 2009-11-24 curried take/drop
2009-11-08 wenzelm 2009-11-08 adapted Theory_Data; tuned;
2009-10-29 wenzelm 2009-10-29 eliminated some old folds;
2009-10-29 wenzelm 2009-10-29 standardized filter/filter_out;
2009-10-27 wenzelm 2009-10-27 eliminated some old folds;
2009-10-27 wenzelm 2009-10-27 normalized basic type abbreviations;
2009-10-22 haftmann 2009-10-22 map_range (and map_index) combinator
2009-10-21 blanchet 2009-10-21 merged
2009-10-21 blanchet 2009-10-21 fixed the "expect" mechanism of Refute in the face of timeouts
2009-10-21 haftmann 2009-10-21 curried union as canonical list operation
2009-10-21 haftmann 2009-10-21 merged
2009-10-21 haftmann 2009-10-21 dropped redundant gen_ prefix
2009-10-20 haftmann 2009-10-20 replaced old_style infixes eq_set, subset, union, inter and variants by generic versions
2009-10-21 wenzelm 2009-10-21 standardized basic operations on type option;
2009-10-19 wenzelm 2009-10-19 uniform use of Integer.add/mult/sum/prod;
2009-10-15 wenzelm 2009-10-15 replaced String.concat by implode; replaced String.concatWith by space_implode; replaced (Seq.flat o by Seq.maps; replaced List.mapPartial by map_filter; replaced List.concat by flat; replaced (flat o map) by maps, which produces less garbage;
2009-10-15 wenzelm 2009-10-15 normalized aliases of Output operations;
2009-10-02 wenzelm 2009-10-02 Refute.refute_goal: canonical goal addresses from 1 (renamed from refute_subgoal to clarify change in semantics); command 'refute': Proof.flat_goal provides standard view on internally structured Isar goal, suitable for (semi)automated tools;
2009-07-10 haftmann 2009-07-10 dropped find_index_eq
2009-07-06 wenzelm 2009-07-06 renamed inclass/Inclass to of_class/OfClass, in accordance to of_sort;
2009-06-23 haftmann 2009-06-23 tuned interfaces of datatype module
2009-06-21 haftmann 2009-06-21 simplified names of common datatype types
2009-06-19 haftmann 2009-06-19 discontinued ancient tradition to suffix certain ML module names with "_package"
2009-03-11 haftmann 2009-03-11 HOLogic.mk_set, HOLogic.dest_set
2009-03-07 blanchet 2009-03-07 Added a second timeout mechanism to Refute. For some reason, TimeLimit.timeLimit often does not work, and it leaves Refute running forever, making any evaluation using Mutabelle or Mirabelle impossible. The redundant timeout seems to do the trick.
2009-03-07 blanchet 2009-03-07 Refute: Distinguish between "genuine" and "potential" in the newly added "expect" option.
2009-03-06 blanchet 2009-03-06 Added "expect" option to Refute, like in Nitpick, that allows to write regression tests. Also replaced calls to "Output.immediate_output" with "priority" or "tracing", because "immediate_output" causes some problems (as explained by Makarius to Sascha).
2009-03-06 blanchet 2009-03-06 Fix remaining occurrences of "'a set" in Refute, by using "'a => bool" instead. I tested the affected symbols (card, finite, lfp, and gfp), and Refute now works better than before (i.e., more precision and more speed).
2009-03-06 haftmann 2009-03-06 merged
2009-03-05 haftmann 2009-03-05 merged
2009-03-05 haftmann 2009-03-05 set operations Int, Un, INTER, UNION, Inter, Union, empty, UNIV are now proper qualified constants with authentic syntax
2009-03-05 blanchet 2009-03-05 Reintroduced previous changes: Made "Refute.norm_rhs" public and simplified the configuration of the BerkMin and zChaff SAT solvers.
2009-03-04 blanchet 2009-03-04 Merge.
2009-03-04 blanchet 2009-03-04 Merge.
2009-03-04 blanchet 2009-03-04 Made Refute.norm_rhs public, so I can use it in Nitpick.