Thu, 14 Apr 2011 11:24:05 +0200 blanchet properly implemented definitional CNF for the new Skolemizer (and moved the code for the old Skolemizer -- tuning), removing big chunks for experimental/debugging code
Thu, 14 Apr 2011 11:24:05 +0200 blanchet remove experimental code added in 85bb6fbb8e6a
Thu, 14 Apr 2011 11:24:05 +0200 blanchet added examples of definitional CNF facts
Thu, 14 Apr 2011 11:24:05 +0200 blanchet "unify_first_prem_with_concl" (cf. 9ceb585c097a) sometimes throws an exception, but it is very rarely needed -- catch the exception for now
Thu, 14 Apr 2011 11:24:05 +0200 blanchet compile
Thu, 14 Apr 2011 11:24:05 +0200 blanchet handle case where the same Skolem name is given different types in different subgoals in the new Skolemizer (this can happen if several type-instances of the same fact are needed by Metis, cf. example in "Clausify.thy") -- the solution reintroduces old code removed in a6725f293377
Thu, 14 Apr 2011 11:24:04 +0200 blanchet removed obsolete Skolem counter in new Skolemizer
Thu, 14 Apr 2011 11:24:04 +0200 blanchet added outstanding issue to Metis example
Thu, 14 Apr 2011 11:24:04 +0200 blanchet use the list of actually used axioms to (correctly) precompute the "outer params", not all axioms
Thu, 14 Apr 2011 11:24:04 +0200 blanchet started clausifier examples
Thu, 14 Apr 2011 11:24:04 +0200 blanchet make new Skolemizer work also for "metisFT"
Thu, 14 Apr 2011 11:24:04 +0200 blanchet improve definitional CNF on goal by moving "not" past the quantifiers
Thu, 14 Apr 2011 11:24:04 +0200 blanchet experiment with definitional CNF
Thu, 14 Apr 2011 11:24:04 +0200 blanchet use old Skolemizer for Metis call that requires high unification bound (around 100) with the new Skolemizer
Thu, 14 Apr 2011 11:24:04 +0200 blanchet try to repair out-of-sync situations in Metis
Thu, 14 Apr 2011 11:24:04 +0200 blanchet handle Vampire [predicate definition introduction] steps the same way as missing proof, since such steps do not report which axioms were used
Wed, 13 Apr 2011 21:38:00 +0200 noschinl Add YXML.parse_file to signature ...
Wed, 13 Apr 2011 21:23:30 +0200 noschinl Add YXML.parse_file to parse and process big data files
Wed, 13 Apr 2011 20:43:00 +0200 noschinl Generalized File.fold_lines to File.fold_fields
Mon, 11 Apr 2011 17:23:20 +0200 wenzelm more permissive run_command: identity execution for empty toplevel, e.g. after malformed theory header;
Mon, 11 Apr 2011 17:11:03 +0200 wenzelm Name_Space.entry_markup: keep def position as separate properties;
Sat, 09 Apr 2011 23:29:50 +0200 wenzelm some position reports for 'translations';
Sat, 09 Apr 2011 15:00:23 +0200 wenzelm made SML/NJ happy;
Sat, 09 Apr 2011 13:10:20 +0200 wenzelm merged
Fri, 08 Apr 2011 19:04:08 +0200 boehmes added SMT certificates
Fri, 08 Apr 2011 19:04:08 +0200 boehmes use unification instead of matching to find proper assertions (which might not match original assumptions due to lambda-lifting and introduction of fresh variables)
Fri, 08 Apr 2011 19:04:08 +0200 boehmes fixed eta-expansion: use correct order to apply new bound variables
Fri, 08 Apr 2011 19:04:08 +0200 boehmes check if negating the goal is possible (avoids CTERM exception for Pure propositions)
Fri, 08 Apr 2011 19:04:08 +0200 boehmes unfold and eta-contract let expressions before lambda-lifting to avoid bad terms
Fri, 08 Apr 2011 19:04:08 +0200 boehmes corrected order of steps in Z3 proof reconstruction for elimination of unused quantified variables: first try to eliminate unused variables, then skip over used variables
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