src/HOL/Tools/ATP/atp_translate.ML
Wed, 20 Jul 2011 00:37:42 +0200 blanchet generate slightly less type information -- this should be sound since type arguments should keep things cleanly apart
Wed, 20 Jul 2011 00:37:42 +0200 blanchet avoid calling "Term.is_first_order" (indirectly) on a term with loose de Bruijns -- this is not necessary anyway because of the Abs check in "simple_translate_lambdas"
Sun, 17 Jul 2011 14:21:19 +0200 blanchet fixed lambda-liftg: must ensure the formulas are in close form
Sun, 17 Jul 2011 14:12:45 +0200 blanchet ensure that the lambda translation procedure is called only once with all the facts, which is necessary for soundness of lambda-lifting (freshness of new names)
Sun, 17 Jul 2011 14:11:35 +0200 blanchet pass kind to lambda-translation function
Sun, 17 Jul 2011 14:11:35 +0200 blanchet more refactoring of preprocessing
Sun, 17 Jul 2011 14:11:35 +0200 blanchet more refactoring of preprocessing, so as to be able to centralize it
Sun, 17 Jul 2011 14:11:35 +0200 blanchet renamed internal data structure
Sun, 17 Jul 2011 14:11:35 +0200 blanchet simplify code -- there are no lambdas in helpers anyway
Sun, 17 Jul 2011 14:11:35 +0200 blanchet added lambda-lifting to Sledgehammer (rough)
Sun, 17 Jul 2011 14:11:34 +0200 blanchet move more lambda-handling logic to Sledgehammer, from ATP module, for formal dependency reasons
Thu, 14 Jul 2011 17:29:30 +0200 blanchet move error logic closer to user
Thu, 14 Jul 2011 16:50:05 +0200 blanchet move lambda translation option from ATP to Sledgehammer, to avoid accidentally breaking Metis (its reconstruction code can only deal with combinators)
Thu, 14 Jul 2011 16:50:05 +0200 blanchet added option to control which lambda translation to use (for experiments)
Wed, 06 Jul 2011 17:19:34 +0100 blanchet make SML/NJ happier
Wed, 06 Jul 2011 17:19:34 +0100 blanchet make SML/NJ happy + tuning
Tue, 05 Jul 2011 17:09:59 +0100 nik improved translation of lambdas in THF
Tue, 05 Jul 2011 17:09:59 +0100 nik added generation of lambdas in THF
Tue, 05 Jul 2011 17:09:59 +0100 nik add support for lambdas in TPTP THF generator + killed an unsound type encoding (because the monotonicity calculus assumes first-order)
Fri, 01 Jul 2011 15:53:38 +0200 blanchet further repair "mangled_tags", now that tags are also mangled
Fri, 01 Jul 2011 15:53:38 +0200 blanchet renamed "type_sys" to "type_enc", which is more accurate
Fri, 01 Jul 2011 15:53:37 +0200 blanchet cleaner handling of higher-order simple types, so that it's also possible to use first-order simple types with LEO-II and company
Fri, 01 Jul 2011 15:53:37 +0200 blanchet mangle "ti" tags
Fri, 01 Jul 2011 15:53:37 +0200 blanchet tuning
Mon, 27 Jun 2011 14:56:28 +0200 blanchet added "sound" option to force Sledgehammer to be pedantically sound
Tue, 21 Jun 2011 17:17:39 +0200 blanchet don't change the way helpers are generated for the exporter's sake
Tue, 21 Jun 2011 17:17:39 +0200 blanchet remove historical bloat -- another benefit of merging Metis's and Sledgehammer's translations
Tue, 21 Jun 2011 17:17:39 +0200 blanchet avoid double ASCII-fication
Tue, 21 Jun 2011 17:17:39 +0200 blanchet generate type predicates for existentials/skolems, otherwise some problems might not be provable
Thu, 16 Jun 2011 13:50:35 +0200 blanchet gave up an optimization that sometimes lead to unsound proofs -- in short, facts talking about a schematic type variable can encode a cardinality constraint and be consistent with HOL, e.g. "card (UNIV::?'a set) = 1 ==> ALL x y. x = y"
Thu, 16 Jun 2011 13:50:35 +0200 blanchet fixed soundness bug related to extensionality
Wed, 15 Jun 2011 14:36:41 +0200 blanchet fixed soundness bug made more visible by previous change
Wed, 15 Jun 2011 14:36:41 +0200 blanchet type arguments now (unlike back when fa2cf11d6351 was done) normally carry enough information to reconstruct the type of an applied constant, so no need to constraint the argument types in those cases
Fri, 10 Jun 2011 17:52:09 +0200 blanchet name tuning
Fri, 10 Jun 2011 17:52:09 +0200 blanchet revived the lightweight "poly_tags_{query,bang}" type encodings by fixing their soundness bug
Thu, 09 Jun 2011 16:34:49 +0200 wenzelm discontinued Name.variant to emphasize that this is old-style / indirect;
Thu, 09 Jun 2011 00:16:28 +0200 blanchet cleaner fact freshening, which also works in corner cases, e.g. if two backquoted facts have the same name (but have different variable indices)
Wed, 08 Jun 2011 22:13:49 +0200 wenzelm merged
Wed, 08 Jun 2011 16:20:19 +0200 blanchet pass Metis facts and negated conjecture as facts, with (almost) correctly set localities, so that the correct encoding is used for nonmonotonic occurrences of infinite types
Wed, 08 Jun 2011 16:20:18 +0200 blanchet made "query" type systes a bit more sound -- local facts, e.g. the negated conjecture, may make invalid the infinity check, e.g. if we are proving that there exists two values of an infinite type, we can use the negated conjecture that there is only one value to derive unsound proofs unless the type is properly encoded
Wed, 08 Jun 2011 16:20:18 +0200 blanchet fixed format selection logic for Waldmeister
Wed, 08 Jun 2011 17:49:01 +0200 wenzelm updated headers;
Wed, 08 Jun 2011 15:56:57 +0200 wenzelm more robust exception pattern General.Subscript;
Wed, 08 Jun 2011 08:47:43 +0200 blanchet minor optimization
Wed, 08 Jun 2011 08:47:43 +0200 blanchet don't needlessly extensionalize
Wed, 08 Jun 2011 08:47:43 +0200 blanchet don't needlessly presimplify -- makes ATP problem preparation much faster
Wed, 08 Jun 2011 08:47:43 +0200 blanchet tuned
Wed, 08 Jun 2011 08:47:43 +0200 blanchet killed "explicit_apply" option in Sledgehammer -- the "smart" default is about as lightweight as "false" and just as complete as "true"
Wed, 08 Jun 2011 08:47:43 +0200 blanchet slightly faster/cleaner accumulation of polymorphic consts
Tue, 07 Jun 2011 14:17:35 +0200 blanchet more suitable implementation of "schematic_consts_of" for monomorphizer, for ATPs
Tue, 07 Jun 2011 06:58:52 +0200 blanchet pass props not thms to ATP translator
Mon, 06 Jun 2011 20:56:06 +0200 blanchet removed old optimization that isn't one anyone
Mon, 06 Jun 2011 20:56:06 +0200 blanchet generate less type information in polymorphic case
Mon, 06 Jun 2011 20:36:35 +0200 blanchet made "explicit_apply"'s smart mode (more) complete
Mon, 06 Jun 2011 20:36:35 +0200 blanchet change var name as a workaround for rare issue in Metis's reconstruction code -- namely, "find_var" fails because "X = X" is wrongly mirrorred as "A = A"
Mon, 06 Jun 2011 20:36:35 +0200 blanchet make "smart" mode of "explicit_apply" smarter, by also detecting the other kind of higher-order quantification, namely "bool"s
Mon, 06 Jun 2011 20:36:35 +0200 blanchet whitespace tuning
Mon, 06 Jun 2011 20:36:35 +0200 blanchet fixed type helper indices in new Metis
Mon, 06 Jun 2011 20:36:35 +0200 blanchet improved ATP clausifier so it can deal with "x => (y <=> z)"
Mon, 06 Jun 2011 20:36:35 +0200 blanchet avoid renumbering hypotheses
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