adding eval option to quickcheck

handling a quite restricted set of functions in Quickcheck_Narrowing by an easy transformation

adding minimalistic setup and transformation to handle functions as data to enable naive function generation for Quickcheck_Narrowing

adding a simple datatype for representing functions in Quickcheck_Narrowing

extending code_int type more; adding narrowing instance for type int; added test case for int instance

translating bash output in quickcheck_narrowing to handle special characters; adding simple test cases

adding size as static argument in quickcheck_narrowing compilation

modernized specifications;

dropped unused structure aliases;

tuned;

NEWS: structure Timing provides various operations for timing;

simplified various cpu_time clones (!): eliminated odd Exn.capture/Exn.release (no need to "stop" timing);

pure Timing.timing, without any exception handling; clarified cond_timeit: propagate interrupt without side-effect;

structure Timing: covers former start_timing/end_timing and Output.timeit etc; explicit Timing.message function; eliminated Output.timing flag, cf. Toplevel.timing; tuned;

pervasive cond_timeit;

eliminated dead code;

parallel preparation of document variants, within separate directories;

Present.init/finish/no_document are not thread-safe -- eliminated futile CRITICAL sections; tuned;

eliminated redundant doc_prefix1; tuned;

renamed doc_prefix2 to dump_prefix;

tuned;

tuned terminology for document variants;

replaced File.check by specific File.check_file, File.check_dir; clarified File.full_path -- include parts of former Thy_Load.get_file; simplified Thy_Load.check_file -- do not read/digest yet; merged Thy_Load.check_thy/deps_thy -- always read text and parse header; clarified Thy_Header.read -- NB: partial Path.explode outside of args parser combinator; Thy_Info.check_deps etc.: File.read exactly once;

tuned;

preencode value of "need" selectors in Kodkod bounds as an optimization

ignore "need" axioms for "nat"-like types

added "simp:", "intro:", and "elim:" to "try" command

optimize Kodkod axioms further w.r.t. "need" option

optimize Kodkod bounds of nat-like datatypes

more optimizations of bounds for "need"

optimize Kodkod bounds when "need" is specified

always destroy constructor patterns, since this seems to be always useful

reintroduced "show_skolems" option -- useful when too many Skolems are displayed

reword Nitpick's wording concerning potential counterexamples

prevent an exception if "card" is empty (e.g., "nitpick [card]")

add option to function to keep trivial ATP formulas, needed for some experiments

add option to relevance filter's "all_facts" function to really get all facts (needed for some experiments)

tuned lemma

added lemmas

added lemma

support non-ground "need" values

recover Isabelle symlink for public distribution, notably website;

standardized headers;

merged

reworked Probability theory: measures are not type restricted to positive extended reals

split Extended_Reals into parts for Library and Multivariate_Analysis

lemmas about addition, SUP on countable sets and infinite sums for extreal

add infinite sums and power on extreal

introduce setsum on extreal

use abs_extreal

simplified definition of open_extreal

use case_product for extrel[2,3]_cases

add Extended_Reals from AFP/Lower_Semicontinuous

add lemmas for monotone sequences

add lemmas for SUP and INF

generalize infinite sums

moved t2_spaces to HOL image

example settings for ISABELLE_GHC, ISABELLE_OCAML, ISABELLE_SWIPL;

isatest: fresh copy of settings avoids odd cumulative environment;

tuned exhaustive_generators