NEWS
author wenzelm
Sun May 24 21:01:51 2020 +0200 (2 months ago)
changeset 71884 2bf0283fc975
parent 71845 b8d7b623e274
child 71901 0408f6814224
permissions -rw-r--r--
proper stack_limit;
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Isabelle NEWS -- history of user-relevant changes
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=================================================
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(Note: Isabelle/jEdit shows a tree-view of the NEWS file in Sidekick.)
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New in this Isabelle version
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----------------------------
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*** System ***
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* The command-line tool "isabelle console" now supports interrupts
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properly (on Linux and macOS).
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* The command-line tool "isabelle sessions" explores the structure of
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Isabelle sessions and prints result names in topological order (on
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stdout).
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* The Isabelle/Scala "Progress" interface changed slightly and
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"No_Progress" has been discontinued. INCOMPATIBILITY, use "new Progress"
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instead.
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* General support for Isabelle/Scala system services, configured via the
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shell function "isabelle_scala_service" in etc/settings (e.g. of an
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Isabelle component); see implementations of class
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Isabelle_System.Service in Isabelle/Scala. This supersedes former
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"isabelle_scala_tools" and "isabelle_file_format": minor
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INCOMPATIBILITY.
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* Isabelle/Phabricator setup has been updated to follow ongoing
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development: libphutil has been discontinued. Minor INCOMPATIBILITY:
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existing server installations should remove libphutil from
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/usr/local/bin/isabelle-phabricator-upgrade and each installation root
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directory (e.g. /var/www/phabricator-vcs/libphutil).
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*** Pure ***
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* Definitions in locales produce rule which can be added as congruence
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rule to protect foundational terms during simplification.
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*** HOL ***
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* New constant "power_int" for exponentiation with integer exponent,
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written as "x powi n".
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* Added the "at most 1" quantifier, Uniq.
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* For the natural numbers, Sup{} = 0.
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*** FOL ***
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* Added the "at most 1" quantifier, Uniq, as in HOL.
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New in Isabelle2020 (April 2020)
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--------------------------------
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*** General ***
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* Session ROOT files need to specify explicit 'directories' for import
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of theory files. Directories cannot be shared by different sessions.
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(Recall that import of theories from other sessions works via
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session-qualified theory names, together with suitable 'sessions'
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declarations in the ROOT.)
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* Internal derivations record dependencies on oracles and other theorems
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accurately, including the implicit type-class reasoning wrt. proven
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class relations and type arities. In particular, the formal tagging with
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"Pure.skip_proofs" of results stemming from "instance ... sorry" is now
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propagated properly to theorems depending on such type instances.
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* Command 'sorry' (oracle "Pure.skip_proofs") is more precise about the
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actual proposition that is assumed in the goal and proof context. This
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requires at least Proofterm.proofs = 1 to show up in theorem
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dependencies.
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* Command 'thm_oracles' prints all oracles used in given theorems,
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covering the full graph of transitive dependencies.
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* Command 'thm_deps' prints immediate theorem dependencies of the given
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facts. The former graph visualization has been discontinued, because it
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was hardly usable.
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* Refined treatment of proof terms, including type-class proofs for
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minor object-logics (FOL, FOLP, Sequents).
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* The inference kernel is now confined to one main module: structure
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Thm, without the former circular dependency on structure Axclass.
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* Mixfix annotations may use "' " (single quote followed by space) to
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separate delimiters (as documented in the isar-ref manual), without
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requiring an auxiliary empty block. A literal single quote needs to be
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escaped properly. Minor INCOMPATIBILITY.
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*** Isar ***
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* The proof method combinator (subproofs m) applies the method
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expression m consecutively to each subgoal, constructing individual
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subproofs internally. This impacts the internal construction of proof
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terms: it makes a cascade of let-expressions within the derivation tree
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and may thus improve scalability.
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* Attribute "trace_locales" activates tracing of locale instances during
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roundup. It replaces the diagnostic command 'print_dependencies', which
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has been discontinued.
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*** Isabelle/jEdit Prover IDE ***
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* Prover IDE startup is now much faster, because theory dependencies are
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no longer explored in advance. The overall session structure with its
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declarations of 'directories' is sufficient to locate theory files. Thus
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the "session focus" of option "isabelle jedit -S" has become obsolete
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(likewise for "isabelle vscode_server -S"). Existing option "-R" is both
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sufficient and more convenient to start editing a particular session.
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* Actions isabelle.tooltip (CS+b) and isabelle.message (CS+m) display
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tooltip message popups, corresponding to mouse hovering with/without the
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CONTROL/COMMAND key pressed.
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* The following actions allow to navigate errors within the current
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document snapshot:
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  isabelle.first-error (CS+a)
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  isabelle.last-error (CS+z)
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  isabelle.next-error (CS+n)
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  isabelle.prev-error (CS+p)
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* Support more brackets: \<llangle> \<rrangle> (intended for implicit argument syntax).
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* Action isabelle.jconsole (menu item Plugins / Isabelle / Java/VM
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Monitor) applies the jconsole tool on the running Isabelle/jEdit
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process. This allows to monitor resource usage etc.
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* More adequate default font sizes for Linux on HD / UHD displays:
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automatic font scaling is usually absent on Linux, in contrast to
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Windows and macOS.
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* The default value for the jEdit property "view.antiAlias" (menu item
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Utilities / Global Options / Text Area / Anti Aliased smooth text) is
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now "subpixel HRGB", instead of former "standard". Especially on Linux
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this often leads to faster text rendering, but can also cause problems
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with odd color shades. An alternative is to switch back to "standard"
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here, and set the following Java system property:
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    isabelle jedit -Dsun.java2d.opengl=true
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This can be made persistent via JEDIT_JAVA_OPTIONS in
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$ISABELLE_HOME_USER/etc/settings. For the "Isabelle2020" desktop
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application there is a corresponding options file in the same directory.
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*** Isabelle/VSCode Prover IDE ***
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* Update of State and Preview panels to use new WebviewPanel API of
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VSCode.
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*** HOL ***
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* Improvements of the 'lift_bnf' command:
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  - Add support for quotient types.
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  - Generate transfer rules for the lifted map/set/rel/pred constants
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    (theorems "<type>.<constant>_transfer_raw").
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* Term_XML.Encode/Decode.term uses compact representation of Const
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"typargs" from the given declaration environment. This also makes more
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sense for translations to lambda-calculi with explicit polymorphism.
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INCOMPATIBILITY, use Term_XML.Encode/Decode.term_raw in special
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applications.
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* ASCII membership syntax concerning big operators for infimum and
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supremum has been discontinued. INCOMPATIBILITY.
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* Removed multiplicativity assumption from class
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"normalization_semidom". Introduced various new intermediate classes
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with the multiplicativity assumption; many theorem statements
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(especially involving GCD/LCM) had to be adapted. This allows for a more
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natural instantiation of the algebraic typeclasses for e.g. Gaussian
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integers. INCOMPATIBILITY.
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* Clear distinction between types for bits (False / True) and Z2 (0 /
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1): theory HOL-Library.Bit has been renamed accordingly.
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INCOMPATIBILITY.
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* Dynamic facts "algebra_split_simps" and "field_split_simps" correspond
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to algebra_simps and field_simps but contain more aggressive rules
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potentially splitting goals; algebra_split_simps roughly replaces
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sign_simps and field_split_simps can be used instead of divide_simps.
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INCOMPATIBILITY.
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* Theory HOL.Complete_Lattices:
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renamed Inf_Sup -> Inf_eq_Sup and Sup_Inf -> Sup_eq_Inf
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* Theory HOL-Library.Monad_Syntax: infix operation "bind" (\<bind>)
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associates to the left now as is customary.
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* Theory HOL-Library.Ramsey: full finite Ramsey's theorem with
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multiple colours and arbitrary exponents.
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* Session HOL-Proofs: build faster thanks to better treatment of proof
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terms in Isabelle/Pure.
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* Session HOL-Word: bitwise NOT-operator has proper prefix syntax. Minor
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INCOMPATIBILITY.
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* Session HOL-Analysis: proof method "metric" implements a decision
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procedure for simple linear statements in metric spaces.
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* Session HOL-Complex_Analysis has been split off from HOL-Analysis.
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*** ML ***
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* Theory construction may be forked internally, the operation
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Theory.join_theory recovers a single result theory. See also the example
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in theory "HOL-ex.Join_Theory".
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* Antiquotation @{oracle_name} inlines a formally checked oracle name.
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* Minimal support for a soft-type system within the Isabelle logical
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framework (module Soft_Type_System).
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* Former Variable.auto_fixes has been replaced by slightly more general
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Proof_Context.augment: it is subject to an optional soft-type system of
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the underlying object-logic. Minor INCOMPATIBILITY.
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* More scalable Export.export using XML.tree to avoid premature string
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allocations, with convenient shortcut XML.blob. Minor INCOMPATIBILITY.
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* Prover IDE support for the underlying Poly/ML compiler (not the basis
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library). Open $ML_SOURCES/ROOT.ML in Isabelle/jEdit to browse the
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implementation with full markup.
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*** System ***
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* Standard rendering for more Isabelle symbols: \<llangle> \<rrangle> \<bbar> \<sqdot>
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* The command-line tool "isabelle scala_project" creates a Gradle
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project configuration for Isabelle/Scala/jEdit, to support Scala IDEs
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such as IntelliJ IDEA.
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* The command-line tool "isabelle phabricator_setup" facilitates
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self-hosting of the Phabricator software-development platform, with
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support for Git, Mercurial, Subversion repositories. This helps to avoid
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monoculture and to escape the gravity of centralized version control by
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Github and/or Bitbucket. For further documentation, see chapter
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"Phabricator server administration" in the "system" manual. A notable
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example installation is https://isabelle-dev.sketis.net/.
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* The command-line tool "isabelle hg_setup" simplifies the setup of
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Mercurial repositories, with hosting via Phabricator or SSH file server
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access.
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* The command-line tool "isabelle imports" has been discontinued: strict
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checking of session directories enforces session-qualified theory names
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in applications -- users are responsible to specify session ROOT entries
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properly.
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* The command-line tool "isabelle dump" and its underlying
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Isabelle/Scala module isabelle.Dump has become more scalable, by
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splitting sessions and supporting a base logic image. Minor
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INCOMPATIBILITY in options and parameters.
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* The command-line tool "isabelle build_docker" has been slightly
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improved: it is now properly documented in the "system" manual.
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* Isabelle/Scala support for the Linux platform (Ubuntu): packages,
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users, system services.
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* Isabelle/Scala support for proof terms (with full type/term
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information) in module isabelle.Term.
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* Isabelle/Scala: more scalable output of YXML files, e.g. relevant for
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"isabelle dump".
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* Theory export via Isabelle/Scala has been reworked. The former "fact"
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name space is now split into individual "thm" items: names are
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potentially indexed, such as "foo" for singleton facts, or "bar(1)",
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"bar(2)", "bar(3)" for multi-facts. Theorem dependencies are now
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exported as well: this spans an overall dependency graph of internal
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inferences; it might help to reconstruct the formal structure of theory
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libraries. See also the module isabelle.Export_Theory in Isabelle/Scala.
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* Theory export of structured specifications, based on internal
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declarations of Spec_Rules by packages like 'definition', 'inductive',
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'primrec', 'function'.
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* Old settings variables ISABELLE_PLATFORM and ISABELLE_WINDOWS_PLATFORM
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have been discontinued -- deprecated since Isabelle2018.
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* More complete x86_64 platform support on macOS, notably Catalina where
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old x86 has been discontinued.
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* Update to GHC stack 2.1.3 with stackage lts-13.19/ghc-8.6.4.
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* Update to OCaml Opam 2.0.6 (using ocaml 4.05.0 as before).
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New in Isabelle2019 (June 2019)
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-------------------------------
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*** General ***
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* The font collection "Isabelle DejaVu" is systematically derived from
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the existing "DejaVu" fonts, with variants "Sans Mono", "Sans", "Serif"
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and styles "Normal", "Bold", "Italic/Oblique", "Bold-Italic/Oblique".
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The DejaVu base fonts are retricted to well-defined Unicode ranges and
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augmented by special Isabelle symbols, taken from the former
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"IsabelleText" font (which is no longer provided separately). The line
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metrics and overall rendering quality is closer to original DejaVu.
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INCOMPATIBILITY with display configuration expecting the old
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"IsabelleText" font: use e.g. "Isabelle DejaVu Sans Mono" instead.
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* The Isabelle fonts render "\<inverse>" properly as superscript "-1".
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* Old-style inner comments (* ... *) within the term language are no
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longer supported (legacy feature in Isabelle2018).
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* Old-style {* verbatim *} tokens are explicitly marked as legacy
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feature and will be removed soon. Use \<open>cartouche\<close> syntax instead, e.g.
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via "isabelle update_cartouches -t" (available since Isabelle2015).
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* Infix operators that begin or end with a "*" are now parenthesized
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without additional spaces, e.g. "(*)" instead of "( * )". Minor
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INCOMPATIBILITY.
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* Mixfix annotations may use cartouches instead of old-style double
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quotes, e.g. (infixl \<open>+\<close> 60). The command-line tool "isabelle update -u
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mixfix_cartouches" allows to update existing theory sources
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automatically.
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* ML setup commands (e.g. 'setup', 'method_setup', 'parse_translation')
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need to provide a closed expression -- without trailing semicolon. Minor
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INCOMPATIBILITY.
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* Commands 'generate_file', 'export_generated_files', and
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'compile_generated_files' support a stateless (PIDE-conformant) model
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for generated sources and compiled binaries of other languages. The
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compilation process is managed in Isabelle/ML, and results exported to
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the session database for further use (e.g. with "isabelle export" or
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"isabelle build -e").
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*** Isabelle/jEdit Prover IDE ***
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* Fonts for the text area, gutter, GUI elements etc. use the "Isabelle
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DejaVu" collection by default, which provides uniform rendering quality
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with the usual Isabelle symbols. Line spacing no longer needs to be
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adjusted: properties for the old IsabelleText font had "Global Options /
wenzelm@70069
   354
Text Area / Extra vertical line spacing (in pixels): -2", it now
wenzelm@70069
   355
defaults to 1, but 0 works as well.
wenzelm@70023
   356
wenzelm@69780
   357
* The jEdit File Browser is more prominent in the default GUI layout of
wenzelm@69780
   358
Isabelle/jEdit: various virtual file-systems provide access to Isabelle
wenzelm@69780
   359
resources, notably via "favorites:" (or "Edit Favorites").
wenzelm@69780
   360
wenzelm@70061
   361
* Further markup and rendering for "plain text" (e.g. informal prose)
wenzelm@70061
   362
and "raw text" (e.g. verbatim sources). This improves the visual
wenzelm@70061
   363
appearance of formal comments inside the term language, or in general
wenzelm@70061
   364
for repeated alternation of formal and informal text.
wenzelm@70061
   365
wenzelm@69643
   366
* Action "isabelle-export-browser" points the File Browser to the theory
wenzelm@69764
   367
exports of the current buffer, based on the "isabelle-export:" virtual
wenzelm@69764
   368
file-system. The directory view needs to be reloaded manually to follow
wenzelm@69764
   369
ongoing document processing.
wenzelm@69764
   370
wenzelm@69764
   371
* Action "isabelle-session-browser" points the File Browser to session
wenzelm@69764
   372
information, based on the "isabelle-session:" virtual file-system. Its
wenzelm@69764
   373
entries are structured according to chapter / session names, the open
wenzelm@69764
   374
operation is redirected to the session ROOT file.
wenzelm@69643
   375
wenzelm@69273
   376
* Support for user-defined file-formats via class isabelle.File_Format
wenzelm@69277
   377
in Isabelle/Scala (e.g. see isabelle.Bibtex.File_Format), configured via
wenzelm@69277
   378
the shell function "isabelle_file_format" in etc/settings (e.g. of an
wenzelm@69277
   379
Isabelle component).
wenzelm@69273
   380
wenzelm@70023
   381
* System option "jedit_text_overview" allows to disable the text
wenzelm@70023
   382
overview column.
wenzelm@70023
   383
wenzelm@69854
   384
* Command-line options "-s" and "-u" of "isabelle jedit" override the
wenzelm@69854
   385
default for system option "system_heaps" that determines the heap
wenzelm@69854
   386
storage directory for "isabelle build". Option "-n" is now clearly
wenzelm@69854
   387
separated from option "-s".
wenzelm@69854
   388
wenzelm@70105
   389
* The Isabelle/jEdit desktop application uses the same options as
wenzelm@70105
   390
"isabelle jedit" for its internal "isabelle build" process: the implicit
wenzelm@70105
   391
option "-o system_heaps" (or "-s") has been discontinued. This reduces
wenzelm@70105
   392
the potential for surprise wrt. command-line tools.
wenzelm@70105
   393
wenzelm@70105
   394
* The official download of the Isabelle/jEdit application already
wenzelm@70105
   395
contains heap images for Isabelle/HOL within its main directory: thus
wenzelm@70105
   396
the first encounter becomes faster and more robust (e.g. when run from a
wenzelm@70105
   397
read-only directory).
wenzelm@70105
   398
wenzelm@70072
   399
* Isabelle DejaVu fonts are available with hinting by default, which is
wenzelm@70072
   400
relevant for low-resolution displays. This may be disabled via system
wenzelm@70072
   401
option "isabelle_fonts_hinted = false" in
wenzelm@70075
   402
$ISABELLE_HOME_USER/etc/preferences -- it occasionally yields better
wenzelm@70072
   403
results.
wenzelm@70072
   404
wenzelm@70031
   405
* OpenJDK 11 has quite different font rendering, with better glyph
wenzelm@70031
   406
shapes and improved sub-pixel anti-aliasing. In some situations results
wenzelm@70072
   407
might be *worse* than Oracle Java 8, though -- a proper HiDPI / UHD
wenzelm@70072
   408
display is recommended.
wenzelm@70023
   409
wenzelm@70258
   410
* OpenJDK 11 supports GTK version 2.2 and 3 (according to system
wenzelm@70258
   411
property jdk.gtk.version). The factory default is version 3, but
wenzelm@70258
   412
ISABELLE_JAVA_SYSTEM_OPTIONS includes "-Djdk.gtk.version=2.2" to make
wenzelm@70258
   413
this more conservative (as in Java 8). Depending on the GTK theme
wenzelm@70258
   414
configuration, "-Djdk.gtk.version=3" might work better or worse.
wenzelm@70258
   415
wenzelm@69189
   416
wenzelm@69962
   417
*** Document preparation ***
wenzelm@69962
   418
wenzelm@69962
   419
* Document markers are formal comments of the form \<^marker>\<open>marker_body\<close> that
wenzelm@69962
   420
are stripped from document output: the effect is to modify the semantic
wenzelm@69962
   421
presentation context or to emit markup to the PIDE document. Some
wenzelm@69962
   422
predefined markers are taken from the Dublin Core Metadata Initiative,
wenzelm@69962
   423
e.g. \<^marker>\<open>contributor arg\<close> or \<^marker>\<open>license arg\<close> and produce PIDE markup that
wenzelm@70281
   424
can be retrieved from the document database.
wenzelm@69962
   425
wenzelm@70140
   426
* Old-style command tags %name are re-interpreted as markers with
wenzelm@70140
   427
proof-scope \<^marker>\<open>tag (proof) name\<close> and produce LaTeX environments as
wenzelm@70140
   428
before. Potential INCOMPATIBILITY: multiple markers are composed in
wenzelm@70140
   429
canonical order, resulting in a reversed list of tags in the
wenzelm@70140
   430
presentation context.
wenzelm@70140
   431
wenzelm@70140
   432
* Marker \<^marker>\<open>tag name\<close> does not apply to the proof of a top-level goal
wenzelm@70140
   433
statement by default (e.g. 'theorem', 'lemma'). This is a subtle change
wenzelm@70140
   434
of semantics wrt. old-style %name.
wenzelm@69962
   435
wenzelm@70143
   436
* In Isabelle/jEdit, the string "\tag" may be completed to a "\<^marker>\<open>tag \<close>"
wenzelm@70143
   437
template.
wenzelm@70143
   438
wenzelm@70121
   439
* Document antiquotation option "cartouche" indicates if the output
wenzelm@70121
   440
should be delimited as cartouche; this takes precedence over the
wenzelm@70121
   441
analogous option "quotes".
wenzelm@70121
   442
wenzelm@70122
   443
* Many document antiquotations are internally categorized as "embedded"
wenzelm@70122
   444
and expect one cartouche argument, which is typically used with the
wenzelm@70122
   445
\<^control>\<open>cartouche\<close> notation (e.g. \<^term>\<open>\<lambda>x y. x\<close>). The cartouche
wenzelm@70122
   446
delimiters are stripped in output of the source (antiquotation option
wenzelm@70122
   447
"source"), but it is possible to enforce delimiters via option
wenzelm@70122
   448
"source_cartouche", e.g. @{term [source_cartouche] \<open>\<lambda>x y. x\<close>}.
wenzelm@70122
   449
wenzelm@69962
   450
wenzelm@68879
   451
*** Isar ***
wenzelm@68879
   452
wenzelm@69045
   453
* Implicit cases goal1, goal2, goal3, etc. have been discontinued
wenzelm@69045
   454
(legacy feature since Isabelle2016).
wenzelm@69045
   455
wenzelm@70023
   456
* More robust treatment of structural errors: begin/end blocks take
wenzelm@70023
   457
precedence over goal/proof. This is particularly relevant for the
wenzelm@70023
   458
headless PIDE session and server.
wenzelm@70023
   459
wenzelm@70023
   460
* Command keywords of kind thy_decl / thy_goal may be more specifically
wenzelm@70023
   461
fit into the traditional document model of "definition-statement-proof"
wenzelm@70023
   462
via thy_defn / thy_stmt / thy_goal_defn / thy_goal_stmt.
wenzelm@70023
   463
wenzelm@69045
   464
haftmann@68796
   465
*** HOL ***
haftmann@68796
   466
eberlm@71836
   467
* Simproc 'datatype_no_proper_subterm' rewrites equalities 'lhs = rhs'
eberlm@71836
   468
on datatypes to 'False' if either side is a proper subexpression of the
eberlm@71836
   469
other (for any datatype with a reasonable size function).
eberlm@71836
   470
wenzelm@70009
   471
* Command 'export_code' produces output as logical files within the
wenzelm@70011
   472
theory context, as well as formal session exports that can be
wenzelm@70011
   473
materialized via command-line tools "isabelle export" or "isabelle build
wenzelm@70011
   474
-e" (with 'export_files' in the session ROOT). Isabelle/jEdit also
wenzelm@70011
   475
provides a virtual file-system "isabelle-export:" that can be explored
wenzelm@70011
   476
in the regular file-browser. A 'file_prefix' argument allows to specify
wenzelm@70011
   477
an explicit name prefix for the target file (SML, OCaml, Scala) or
wenzelm@70011
   478
directory (Haskell); the default is "export" with a consecutive number
wenzelm@70011
   479
within each theory.
wenzelm@70009
   480
wenzelm@70009
   481
* Command 'export_code': the 'file' argument is now legacy and will be
wenzelm@70009
   482
removed soon: writing to the physical file-system is not well-defined in
wenzelm@70011
   483
a reactive/parallel application like Isabelle. The empty 'file' argument
wenzelm@70011
   484
has been discontinued already: it is superseded by the file-browser in
wenzelm@70011
   485
Isabelle/jEdit on "isabelle-export:". Minor INCOMPATIBILITY.
haftmann@69624
   486
wenzelm@70022
   487
* Command 'code_reflect' no longer supports the 'file' argument: it has
wenzelm@70022
   488
been superseded by 'file_prefix' for stateless file management as in
wenzelm@70022
   489
'export_code'. Minor INCOMPATIBILITY.
wenzelm@70022
   490
haftmann@69743
   491
* Code generation for OCaml: proper strings are used for literals.
haftmann@69743
   492
Minor INCOMPATIBILITY.
haftmann@69743
   493
wenzelm@69926
   494
* Code generation for OCaml: Zarith supersedes Nums as library for
wenzelm@69926
   495
proper integer arithmetic. The library is located via standard
wenzelm@69926
   496
invocations of "ocamlfind" (via ISABELLE_OCAMLFIND settings variable).
wenzelm@69926
   497
The environment provided by "isabelle ocaml_setup" already contains this
wenzelm@69926
   498
tool and the required packages. Minor INCOMPATIBILITY.
haftmann@69906
   499
haftmann@69690
   500
* Code generation for Haskell: code includes for Haskell must contain
haftmann@69690
   501
proper module frame, nothing is added magically any longer.
haftmann@69690
   502
INCOMPATIBILITY.
haftmann@69690
   503
wenzelm@70023
   504
* Code generation: slightly more conventional syntax for 'code_stmts'
wenzelm@70023
   505
antiquotation. Minor INCOMPATIBILITY.
wenzelm@70023
   506
wenzelm@70023
   507
* Theory List: the precedence of the list_update operator has changed:
wenzelm@70023
   508
"f a [n := x]" now needs to be written "(f a)[n := x]".
wenzelm@70023
   509
wenzelm@70023
   510
* The functions \<Union>, \<Inter>, \<Squnion>, \<Sqinter> (not the corresponding binding operators)
wenzelm@70023
   511
now have the same precedence as any other prefix function symbol. Minor
wenzelm@70023
   512
INCOMPATIBILITY.
haftmann@69861
   513
haftmann@68796
   514
* Simplified syntax setup for big operators under image. In rare
haftmann@68796
   515
situations, type conversions are not inserted implicitly any longer
haftmann@68796
   516
and need to be given explicitly. Auxiliary abbreviations INFIMUM,
haftmann@68796
   517
SUPREMUM, UNION, INTER should now rarely occur in output and are just
haftmann@70237
   518
retained as migration auxiliary. Abbreviations MINIMUM and MAXIMUM
haftmann@70237
   519
are gone INCOMPATIBILITY.
haftmann@68796
   520
wenzelm@70023
   521
* The simplifier uses image_cong_simp as a congruence rule. The historic
wenzelm@70023
   522
and not really well-formed congruence rules INF_cong*, SUP_cong*, are
wenzelm@70023
   523
not used by default any longer. INCOMPATIBILITY; consider using declare
wenzelm@70023
   524
image_cong_simp [cong del] in extreme situations.
wenzelm@70023
   525
wenzelm@70023
   526
* INF_image and SUP_image are no default simp rules any longer.
wenzelm@70023
   527
INCOMPATIBILITY, prefer image_comp as simp rule if needed.
haftmann@68938
   528
nipkow@69164
   529
* Strong congruence rules (with =simp=> in the premises) for constant f
haftmann@69546
   530
are now uniformly called f_cong_simp, in accordance with congruence
haftmann@69546
   531
rules produced for mappers by the datatype package. INCOMPATIBILITY.
nipkow@69164
   532
wenzelm@70023
   533
* Retired lemma card_Union_image; use the simpler card_UN_disjoint
wenzelm@70023
   534
instead. INCOMPATIBILITY.
wenzelm@70023
   535
wenzelm@70023
   536
* Facts sum_mset.commute and prod_mset.commute have been renamed to
wenzelm@70023
   537
sum_mset.swap and prod_mset.swap, similarly to sum.swap and prod.swap.
wenzelm@70023
   538
INCOMPATIBILITY.
wenzelm@70023
   539
wenzelm@70023
   540
* ML structure Inductive: slightly more conventional naming schema.
wenzelm@70023
   541
Minor INCOMPATIBILITY.
wenzelm@70023
   542
wenzelm@70023
   543
* ML: Various _global variants of specification tools have been removed.
wenzelm@70023
   544
Minor INCOMPATIBILITY, prefer combinators
wenzelm@70023
   545
Named_Target.theory_map[_result] to lift specifications to the global
wenzelm@70023
   546
theory level.
wenzelm@70023
   547
wenzelm@70023
   548
* Theory HOL-Library.Simps_Case_Conv: 'case_of_simps' now supports
wenzelm@70023
   549
overlapping and non-exhaustive patterns and handles arbitrarily nested
wenzelm@70023
   550
patterns. It uses on the same algorithm as HOL-Library.Code_Lazy, which
wenzelm@70023
   551
assumes sequential left-to-right pattern matching. The generated
Andreas@69568
   552
equation no longer tuples the arguments on the right-hand side.
Andreas@69568
   553
INCOMPATIBILITY.
Andreas@69568
   554
wenzelm@70297
   555
* Theory HOL-Library.Multiset: the \<Union># operator now has the same
wenzelm@70023
   556
precedence as any other prefix function symbol.
wenzelm@70023
   557
traytel@70080
   558
* Theory HOL-Library.Cardinal_Notations has been discontinued in favor
wenzelm@70168
   559
of the bundle cardinal_syntax (available in theory Main). Minor
wenzelm@70168
   560
INCOMPATIBILITY.
traytel@70080
   561
wenzelm@70023
   562
* Session HOL-Library and HOL-Number_Theory: Exponentiation by squaring,
wenzelm@70023
   563
used for computing powers in class "monoid_mult" and modular
wenzelm@70023
   564
exponentiation.
wenzelm@70023
   565
wenzelm@70023
   566
* Session HOL-Computational_Algebra: Formal Laurent series and overhaul
wenzelm@70023
   567
of Formal power series.
wenzelm@70023
   568
wenzelm@70023
   569
* Session HOL-Number_Theory: More material on residue rings in
wenzelm@70023
   570
Carmichael's function, primitive roots, more properties for "ord".
wenzelm@70023
   571
lp15@70125
   572
* Session HOL-Analysis: Better organization and much more material
lp15@70125
   573
at the level of abstract topological spaces.
lp15@70125
   574
lp15@70164
   575
* Session HOL-Algebra: Free abelian groups, etc., ported from HOL Light;
lp15@70215
   576
 algebraic closure of a field by de Vilhena and Baillon.
wenzelm@70032
   577
wenzelm@70168
   578
* Session HOL-Homology has been added. It is a port of HOL Light's
wenzelm@70168
   579
homology library, with new proofs of "invariance of domain" and related
wenzelm@70168
   580
results.
wenzelm@70168
   581
wenzelm@69099
   582
* Session HOL-SPARK: .prv files are no longer written to the
wenzelm@69099
   583
file-system, but exported to the session database. Results may be
wenzelm@70026
   584
retrieved via "isabelle build -e HOL-SPARK-Examples" on the
wenzelm@70026
   585
command-line.
wenzelm@69099
   586
wenzelm@70023
   587
* Sledgehammer:
wenzelm@70023
   588
  - The URL for SystemOnTPTP, which is used by remote provers, has been
wenzelm@70023
   589
    updated.
wenzelm@70023
   590
  - The machine-learning-based filter MaSh has been optimized to take
wenzelm@70023
   591
    less time (in most cases).
wenzelm@70023
   592
wenzelm@70023
   593
* SMT: reconstruction is now possible using the SMT solver veriT.
wenzelm@70023
   594
haftmann@70174
   595
* Session HOL-Word:
haftmann@70174
   596
  * New theory More_Word as comprehensive entrance point.
haftmann@70175
   597
  * Merged type class bitss into type class bits.
haftmann@70174
   598
  INCOMPATIBILITY.
haftmann@70174
   599
haftmann@68796
   600
wenzelm@68803
   601
*** ML ***
wenzelm@68803
   602
wenzelm@70023
   603
* Command 'generate_file' allows to produce sources for other languages,
wenzelm@70023
   604
with antiquotations in the Isabelle context (only the control-cartouche
wenzelm@70023
   605
form). The default "cartouche" antiquotation evaluates an ML expression
wenzelm@70023
   606
of type string and inlines the result as a string literal of the target
wenzelm@70023
   607
language. For example, this works for Haskell as follows:
wenzelm@70023
   608
wenzelm@70023
   609
  generate_file "Pure.hs" = \<open>
wenzelm@70023
   610
  module Isabelle.Pure where
wenzelm@70023
   611
    allConst, impConst, eqConst :: String
wenzelm@70023
   612
    allConst = \<open>\<^const_name>\<open>Pure.all\<close>\<close>
wenzelm@70023
   613
    impConst = \<open>\<^const_name>\<open>Pure.imp\<close>\<close>
wenzelm@70023
   614
    eqConst = \<open>\<^const_name>\<open>Pure.eq\<close>\<close>
wenzelm@70023
   615
  \<close>
wenzelm@70023
   616
wenzelm@70082
   617
See also commands 'export_generated_files' and 'compile_generated_files'
wenzelm@70082
   618
to use the results.
wenzelm@68803
   619
wenzelm@70260
   620
* ML evaluation (notably via command 'ML' or 'ML_file') is subject to
wenzelm@68824
   621
option ML_environment to select a named environment, such as "Isabelle"
wenzelm@70260
   622
for Isabelle/ML, or "SML" for official Standard ML.
wenzelm@68803
   623
wenzelm@69381
   624
* ML antiquotation @{master_dir} refers to the master directory of the
wenzelm@69381
   625
underlying theory, i.e. the directory of the theory file.
wenzelm@69381
   626
wenzelm@69470
   627
* ML antiquotation @{verbatim} inlines its argument as string literal,
wenzelm@69470
   628
preserving newlines literally. The short form \<^verbatim>\<open>abc\<close> is particularly
wenzelm@69470
   629
useful.
wenzelm@69470
   630
wenzelm@70023
   631
* Local_Theory.reset is no longer available in user space. Regular
wenzelm@70023
   632
definitional packages should use balanced blocks of
wenzelm@70023
   633
Local_Theory.open_target versus Local_Theory.close_target instead, or
wenzelm@70023
   634
the Local_Theory.subtarget(_result) combinator. Rare INCOMPATIBILITY.
wenzelm@70023
   635
wenzelm@70023
   636
* Original PolyML.pointerEq is retained as a convenience for tools that
wenzelm@70023
   637
don't use Isabelle/ML (where this is called "pointer_eq").
wenzelm@69381
   638
wenzelm@69282
   639
wenzelm@68883
   640
*** System ***
wenzelm@68883
   641
wenzelm@70031
   642
* Update to OpenJDK 11: the current long-term support version of Java.
wenzelm@70023
   643
wenzelm@70023
   644
* Update to Poly/ML 5.8 allows to use the native x86_64 platform without
wenzelm@70023
   645
the full overhead of 64-bit values everywhere. This special x86_64_32
wenzelm@70023
   646
mode provides up to 16GB ML heap, while program code and stacks are
wenzelm@70023
   647
allocated elsewhere. Thus approx. 5 times more memory is available for
wenzelm@70023
   648
applications compared to old x86 mode (which is no longer used by
wenzelm@70023
   649
Isabelle). The switch to the x86_64 CPU architecture also avoids
wenzelm@70023
   650
compatibility problems with Linux and macOS, where 32-bit applications
wenzelm@70023
   651
are gradually phased out.
wenzelm@70023
   652
wenzelm@70023
   653
* System option "checkpoint" has been discontinued: obsolete thanks to
wenzelm@70023
   654
improved memory management in Poly/ML.
wenzelm@70023
   655
wenzelm@70023
   656
* System option "system_heaps" determines where to store the session
wenzelm@69854
   657
image of "isabelle build" (and other tools using that internally).
wenzelm@69854
   658
Former option "-s" is superseded by option "-o system_heaps".
wenzelm@69854
   659
INCOMPATIBILITY in command-line syntax.
wenzelm@69854
   660
wenzelm@70023
   661
* Session directory $ISABELLE_HOME/src/Tools/Haskell provides some
wenzelm@70023
   662
source modules for Isabelle tools implemented in Haskell, notably for
wenzelm@70023
   663
Isabelle/PIDE.
wenzelm@70023
   664
wenzelm@70023
   665
* The command-line tool "isabelle build -e" retrieves theory exports
wenzelm@70023
   666
from the session build database, using 'export_files' in session ROOT
wenzelm@70023
   667
entries.
wenzelm@70023
   668
wenzelm@69585
   669
* The command-line tool "isabelle update" uses Isabelle/PIDE in
wenzelm@69585
   670
batch-mode to update theory sources based on semantic markup produced in
wenzelm@69609
   671
Isabelle/ML. Actual updates depend on system options that may be enabled
wenzelm@69588
   672
via "-u OPT" (for "update_OPT"), see also $ISABELLE_HOME/etc/options
wenzelm@69588
   673
section "Theory update". Theory sessions are specified as in "isabelle
wenzelm@69585
   674
dump".
wenzelm@69585
   675
wenzelm@69592
   676
* The command-line tool "isabelle update -u control_cartouches" changes
wenzelm@69592
   677
antiquotations into control-symbol format (where possible): @{NAME}
wenzelm@69592
   678
becomes \<^NAME> and @{NAME ARG} becomes \<^NAME>\<open>ARG\<close>.
wenzelm@69592
   679
wenzelm@69277
   680
* Support for Isabelle command-line tools defined in Isabelle/Scala.
wenzelm@69277
   681
Instances of class Isabelle_Scala_Tools may be configured via the shell
wenzelm@69277
   682
function "isabelle_scala_tools" in etc/settings (e.g. of an Isabelle
wenzelm@69277
   683
component).
wenzelm@69277
   684
wenzelm@70023
   685
* Isabelle Server command "use_theories" supports "nodes_status_delay"
wenzelm@69044
   686
for continuous output of node status information. The time interval is
wenzelm@69044
   687
specified in seconds; a negative value means it is disabled (default).
wenzelm@69044
   688
wenzelm@69044
   689
* Isabelle Server command "use_theories" terminates more robustly in the
wenzelm@68883
   690
presence of structurally broken sources: full consolidation of theories
wenzelm@68883
   691
is no longer required.
wenzelm@68883
   692
wenzelm@69926
   693
* OCaml tools and libraries are now accesed via ISABELLE_OCAMLFIND,
wenzelm@69926
   694
which needs to point to a suitable version of "ocamlfind" (e.g. via
wenzelm@69926
   695
OPAM, see below). INCOMPATIBILITY: settings variables ISABELLE_OCAML and
wenzelm@69926
   696
ISABELLE_OCAMLC are no longer supported.
wenzelm@69926
   697
wenzelm@69268
   698
* Support for managed installations of Glasgow Haskell Compiler and
wenzelm@69268
   699
OCaml via the following command-line tools:
wenzelm@69268
   700
wenzelm@69268
   701
  isabelle ghc_setup
wenzelm@69268
   702
  isabelle ghc_stack
wenzelm@69268
   703
wenzelm@69268
   704
  isabelle ocaml_setup
wenzelm@69268
   705
  isabelle ocaml_opam
wenzelm@69268
   706
wenzelm@69268
   707
The global installation state is determined by the following settings
wenzelm@69268
   708
(and corresponding directory contents):
wenzelm@69268
   709
wenzelm@69268
   710
  ISABELLE_STACK_ROOT
wenzelm@69268
   711
  ISABELLE_STACK_RESOLVER
wenzelm@69268
   712
  ISABELLE_GHC_VERSION
wenzelm@69268
   713
wenzelm@69268
   714
  ISABELLE_OPAM_ROOT
wenzelm@69268
   715
  ISABELLE_OCAML_VERSION
wenzelm@69268
   716
wenzelm@69268
   717
After setup, the following Isabelle settings are automatically
wenzelm@69268
   718
redirected (overriding existing user settings):
wenzelm@69268
   719
wenzelm@69269
   720
  ISABELLE_GHC
wenzelm@69269
   721
wenzelm@69926
   722
  ISABELLE_OCAMLFIND
wenzelm@69268
   723
wenzelm@69268
   724
The old meaning of these settings as locally installed executables may
wenzelm@69268
   725
be recovered by purging the directories ISABELLE_STACK_ROOT /
wenzelm@69926
   726
ISABELLE_OPAM_ROOT, or by resetting these variables in
wenzelm@69926
   727
$ISABELLE_HOME_USER/etc/settings.
wenzelm@69189
   728
wenzelm@69822
   729
wenzelm@68883
   730
wenzelm@68391
   731
New in Isabelle2018 (August 2018)
wenzelm@68391
   732
---------------------------------
wenzelm@66651
   733
wenzelm@66712
   734
*** General ***
wenzelm@66712
   735
wenzelm@68393
   736
* Session-qualified theory names are mandatory: it is no longer possible
wenzelm@68393
   737
to refer to unqualified theories from the parent session.
wenzelm@68393
   738
INCOMPATIBILITY for old developments that have not been updated to
wenzelm@68393
   739
Isabelle2017 yet (using the "isabelle imports" tool).
wenzelm@68393
   740
wenzelm@68393
   741
* Only the most fundamental theory names are global, usually the entry
wenzelm@68393
   742
points to major logic sessions: Pure, Main, Complex_Main, HOLCF, IFOL,
wenzelm@68393
   743
FOL, ZF, ZFC etc. INCOMPATIBILITY, need to use qualified names for
wenzelm@68393
   744
formerly global "HOL-Probability.Probability" and "HOL-SPARK.SPARK".
wenzelm@68393
   745
wenzelm@68558
   746
* Global facts need to be closed: no free variables and no hypotheses.
wenzelm@68558
   747
Rare INCOMPATIBILITY.
wenzelm@68540
   748
wenzelm@68661
   749
* Facts stemming from locale interpretation are subject to lazy
wenzelm@68661
   750
evaluation for improved performance. Rare INCOMPATIBILITY: errors
wenzelm@68661
   751
stemming from interpretation morphisms might be deferred and thus
wenzelm@68661
   752
difficult to locate; enable system option "strict_facts" temporarily to
wenzelm@68661
   753
avoid this.
wenzelm@68661
   754
wenzelm@67446
   755
* Marginal comments need to be written exclusively in the new-style form
wenzelm@67446
   756
"\<comment> \<open>text\<close>", old ASCII variants like "-- {* ... *}" are no longer
wenzelm@67446
   757
supported. INCOMPATIBILITY, use the command-line tool "isabelle
wenzelm@67446
   758
update_comments" to update existing theory files.
wenzelm@67446
   759
wenzelm@67507
   760
* Old-style inner comments (* ... *) within the term language are legacy
wenzelm@67507
   761
and will be discontinued soon: use formal comments "\<comment> \<open>...\<close>" or "\<^cancel>\<open>...\<close>"
wenzelm@67507
   762
instead.
wenzelm@67507
   763
nipkow@67402
   764
* The "op <infix-op>" syntax for infix operators has been replaced by
nipkow@67400
   765
"(<infix-op>)". If <infix-op> begins or ends with a "*", there needs to
nipkow@67400
   766
be a space between the "*" and the corresponding parenthesis.
wenzelm@68543
   767
INCOMPATIBILITY, use the command-line tool "isabelle update_op" to
wenzelm@68543
   768
convert theory and ML files to the new syntax. Because it is based on
wenzelm@68543
   769
regular expression matching, the result may need a bit of manual
wenzelm@68543
   770
postprocessing. Invoking "isabelle update_op" converts all files in the
wenzelm@68543
   771
current directory (recursively). In case you want to exclude conversion
wenzelm@68543
   772
of ML files (because the tool frequently also converts ML's "op"
wenzelm@68543
   773
syntax), use option "-m".
nipkow@67398
   774
wenzelm@67013
   775
* Theory header 'abbrevs' specifications need to be separated by 'and'.
wenzelm@67013
   776
INCOMPATIBILITY.
wenzelm@67013
   777
wenzelm@66757
   778
* Command 'external_file' declares the formal dependency on the given
wenzelm@66757
   779
file name, such that the Isabelle build process knows about it, but
wenzelm@66757
   780
without specific Prover IDE management.
wenzelm@66757
   781
wenzelm@66759
   782
* Session ROOT entries no longer allow specification of 'files'. Rare
wenzelm@66759
   783
INCOMPATIBILITY, use command 'external_file' within a proper theory
wenzelm@66759
   784
context.
wenzelm@66759
   785
wenzelm@66764
   786
* Session root directories may be specified multiple times: each
wenzelm@66764
   787
accessible ROOT file is processed only once. This facilitates
wenzelm@66764
   788
specification of $ISABELLE_HOME_USER/ROOTS or command-line options like
wenzelm@66764
   789
-d or -D for "isabelle build" and "isabelle jedit". Example:
wenzelm@66764
   790
wenzelm@66764
   791
  isabelle build -D '~~/src/ZF'
wenzelm@66764
   792
wenzelm@67263
   793
* The command 'display_drafts' has been discontinued. INCOMPATIBILITY,
wenzelm@67263
   794
use action "isabelle.draft" (or "print") in Isabelle/jEdit instead.
wenzelm@67263
   795
wenzelm@68393
   796
* In HTML output, the Isabelle symbol "\<hyphen>" is rendered as explicit
wenzelm@68393
   797
Unicode hyphen U+2010, to avoid unclear meaning of the old "soft hyphen"
wenzelm@68393
   798
U+00AD. Rare INCOMPATIBILITY, e.g. copy-paste of historic Isabelle HTML
wenzelm@68393
   799
output.
wenzelm@67305
   800
wenzelm@66712
   801
wenzelm@67261
   802
*** Isabelle/jEdit Prover IDE ***
wenzelm@66768
   803
wenzelm@68393
   804
* The command-line tool "isabelle jedit" provides more flexible options
wenzelm@68393
   805
for session management:
wenzelm@68393
   806
wenzelm@68472
   807
  - option -R builds an auxiliary logic image with all theories from
wenzelm@68472
   808
    other sessions that are not already present in its parent
wenzelm@68393
   809
wenzelm@68393
   810
  - option -S is like -R, with a focus on the selected session and its
wenzelm@68393
   811
    descendants (this reduces startup time for big projects like AFP)
wenzelm@68393
   812
wenzelm@68472
   813
  - option -A specifies an alternative ancestor session for options -R
wenzelm@68472
   814
    and -S
wenzelm@68472
   815
wenzelm@68541
   816
  - option -i includes additional sessions into the name-space of
wenzelm@68541
   817
    theories
wenzelm@68541
   818
wenzelm@68393
   819
  Examples:
wenzelm@68393
   820
    isabelle jedit -R HOL-Number_Theory
wenzelm@68393
   821
    isabelle jedit -R HOL-Number_Theory -A HOL
wenzelm@68393
   822
    isabelle jedit -d '$AFP' -S Formal_SSA -A HOL
wenzelm@68393
   823
    isabelle jedit -d '$AFP' -S Formal_SSA -A HOL-Analysis
wenzelm@68541
   824
    isabelle jedit -d '$AFP' -S Formal_SSA -A HOL-Analysis -i CryptHOL
wenzelm@68393
   825
wenzelm@68393
   826
* PIDE markup for session ROOT files: allows to complete session names,
wenzelm@68393
   827
follow links to theories and document files etc.
wenzelm@68393
   828
wenzelm@68393
   829
* Completion supports theory header imports, using theory base name.
wenzelm@68393
   830
E.g. "Prob" may be completed to "HOL-Probability.Probability".
wenzelm@68393
   831
wenzelm@68393
   832
* Named control symbols (without special Unicode rendering) are shown as
wenzelm@68393
   833
bold-italic keyword. This is particularly useful for the short form of
wenzelm@68393
   834
antiquotations with control symbol: \<^name>\<open>argument\<close>. The action
wenzelm@68393
   835
"isabelle.antiquoted_cartouche" turns an antiquotation with 0 or 1
wenzelm@68393
   836
arguments into this format.
wenzelm@68393
   837
wenzelm@68393
   838
* Completion provides templates for named symbols with arguments,
wenzelm@68393
   839
e.g. "\<comment> \<open>ARGUMENT\<close>" or "\<^emph>\<open>ARGUMENT\<close>".
wenzelm@68393
   840
wenzelm@68368
   841
* Slightly more parallel checking, notably for high priority print
wenzelm@68368
   842
functions (e.g. State output).
wenzelm@68368
   843
wenzelm@68080
   844
* The view title is set dynamically, according to the Isabelle
wenzelm@68080
   845
distribution and the logic session name. The user can override this via
wenzelm@68080
   846
set-view-title (stored persistently in $JEDIT_SETTINGS/perspective.xml).
wenzelm@68080
   847
wenzelm@67395
   848
* System options "spell_checker_include" and "spell_checker_exclude"
wenzelm@67395
   849
supersede former "spell_checker_elements" to determine regions of text
wenzelm@67395
   850
that are subject to spell-checking. Minor INCOMPATIBILITY.
wenzelm@67395
   851
wenzelm@67248
   852
* Action "isabelle.preview" is able to present more file formats,
wenzelm@67266
   853
notably bibtex database files and ML files.
wenzelm@67246
   854
wenzelm@67262
   855
* Action "isabelle.draft" is similar to "isabelle.preview", but shows a
wenzelm@68067
   856
plain-text document draft. Both are available via the menu "Plugins /
wenzelm@68067
   857
Isabelle".
wenzelm@67262
   858
wenzelm@67304
   859
* When loading text files, the Isabelle symbols encoding UTF-8-Isabelle
wenzelm@67304
   860
is only used if there is no conflict with existing Unicode sequences in
wenzelm@67304
   861
the file. Otherwise, the fallback encoding is plain UTF-8 and Isabelle
wenzelm@67304
   862
symbols remain in literal \<symbol> form. This avoids accidental loss of
wenzelm@67304
   863
Unicode content when saving the file.
wenzelm@67304
   864
wenzelm@68545
   865
* Bibtex database files (.bib) are semantically checked.
wenzelm@68545
   866
wenzelm@67993
   867
* Update to jedit-5.5.0, the latest release.
wenzelm@67993
   868
wenzelm@67246
   869
wenzelm@67261
   870
*** Isabelle/VSCode Prover IDE ***
wenzelm@67261
   871
wenzelm@67261
   872
* HTML preview of theories and other file-formats similar to
wenzelm@67261
   873
Isabelle/jEdit.
wenzelm@67261
   874
wenzelm@68690
   875
* Command-line tool "isabelle vscode_server" accepts the same options
wenzelm@68690
   876
-A, -R, -S, -i for session selection as "isabelle jedit". This is
wenzelm@68690
   877
relevant for isabelle.args configuration settings in VSCode. The former
wenzelm@68690
   878
option -A (explore all known session files) has been discontinued: it is
wenzelm@68690
   879
enabled by default, unless option -S is used to focus on a particular
wenzelm@68690
   880
spot in the session structure. INCOMPATIBILITY.
wenzelm@68690
   881
wenzelm@66768
   882
wenzelm@67140
   883
*** Document preparation ***
wenzelm@67140
   884
wenzelm@67448
   885
* Formal comments work uniformly in outer syntax, inner syntax (term
wenzelm@67448
   886
language), Isabelle/ML and some other embedded languages of Isabelle.
wenzelm@67448
   887
See also "Document comments" in the isar-ref manual. The following forms
wenzelm@67448
   888
are supported:
wenzelm@67448
   889
wenzelm@67448
   890
  - marginal text comment: \<comment> \<open>\<dots>\<close>
wenzelm@67448
   891
  - canceled source: \<^cancel>\<open>\<dots>\<close>
wenzelm@67448
   892
  - raw LaTeX: \<^latex>\<open>\<dots>\<close>
wenzelm@67413
   893
wenzelm@67381
   894
* Outside of the inner theory body, the default presentation context is
wenzelm@67381
   895
theory Pure. Thus elementary antiquotations may be used in markup
wenzelm@67381
   896
commands (e.g. 'chapter', 'section', 'text') and formal comments.
wenzelm@67381
   897
wenzelm@68513
   898
* System option "document_tags" specifies alternative command tags. This
wenzelm@68513
   899
is occasionally useful to control the global visibility of commands via
wenzelm@68513
   900
session options (e.g. in ROOT).
wenzelm@67140
   901
wenzelm@67140
   902
* Document markup commands ('section', 'text' etc.) are implicitly
wenzelm@67140
   903
tagged as "document" and visible by default. This avoids the application
wenzelm@67140
   904
of option "document_tags" to these commands.
wenzelm@67140
   905
wenzelm@67145
   906
* Isabelle names are mangled into LaTeX macro names to allow the full
wenzelm@67145
   907
identifier syntax with underscore, prime, digits. This is relevant for
wenzelm@67145
   908
antiquotations in control symbol notation, e.g. \<^const_name> becomes
wenzelm@67145
   909
\isactrlconstUNDERSCOREname.
wenzelm@67145
   910
wenzelm@68393
   911
* Document preparation with skip_proofs option now preserves the content
wenzelm@68393
   912
more accurately: only terminal proof steps ('by' etc.) are skipped.
wenzelm@67297
   913
wenzelm@68484
   914
* Document antiquotation @{theory name} requires the long
wenzelm@68484
   915
session-qualified theory name: this is what users reading the text
wenzelm@68484
   916
normally need to import.
wenzelm@68484
   917
wenzelm@67219
   918
* Document antiquotation @{session name} checks and prints the given
wenzelm@67219
   919
session name verbatim.
wenzelm@67219
   920
wenzelm@68393
   921
* Document antiquotation @{cite} now checks the given Bibtex entries
wenzelm@68393
   922
against the Bibtex database files -- only in batch-mode session builds.
wenzelm@67157
   923
wenzelm@67176
   924
* Command-line tool "isabelle document" has been re-implemented in
wenzelm@67194
   925
Isabelle/Scala, with simplified arguments and explicit errors from the
wenzelm@67203
   926
latex and bibtex process. Minor INCOMPATIBILITY.
wenzelm@67173
   927
wenzelm@68393
   928
* Session ROOT entry: empty 'document_files' means there is no document
wenzelm@68393
   929
for this session. There is no need to specify options [document = false]
wenzelm@68393
   930
anymore.
wenzelm@68393
   931
wenzelm@67140
   932
wenzelm@67702
   933
*** Isar ***
wenzelm@67702
   934
wenzelm@67702
   935
* Command 'interpret' no longer exposes resulting theorems as literal
wenzelm@67702
   936
facts, notably for the \<open>prop\<close> notation or the "fact" proof method. This
wenzelm@67702
   937
improves modularity of proofs and scalability of locale interpretation.
wenzelm@67702
   938
Rare INCOMPATIBILITY, need to refer to explicitly named facts instead
wenzelm@67702
   939
(e.g. use 'find_theorems' or 'try' to figure this out).
wenzelm@67702
   940
wenzelm@68393
   941
* The old 'def' command has been discontinued (legacy since
wenzelm@68393
   942
Isbelle2016-1). INCOMPATIBILITY, use 'define' instead -- usually with
wenzelm@68393
   943
object-logic equality or equivalence.
wenzelm@68393
   944
wenzelm@68543
   945
wenzelm@68543
   946
*** Pure ***
wenzelm@68543
   947
wenzelm@68543
   948
* The inner syntax category "sort" now includes notation "_" for the
wenzelm@68543
   949
dummy sort: it is effectively ignored in type-inference.
wenzelm@68543
   950
ballarin@67740
   951
* Rewrites clauses (keyword 'rewrites') were moved into the locale
wenzelm@68393
   952
expression syntax, where they are part of locale instances. In
wenzelm@68393
   953
interpretation commands rewrites clauses now need to occur before 'for'
ballarin@68469
   954
and 'defines'. Rare INCOMPATIBILITY; definitions immediately subject to
ballarin@68469
   955
rewriting may need to be pulled up into the surrounding theory.
wenzelm@68393
   956
wenzelm@68393
   957
* For 'rewrites' clauses, if activating a locale instance fails, fall
wenzelm@68393
   958
back to reading the clause first. This helps avoid qualification of
ballarin@67764
   959
locale instances where the qualifier's sole purpose is avoiding
ballarin@67764
   960
duplicate constant declarations.
ballarin@67741
   961
wenzelm@68543
   962
* Proof method "simp" now supports a new modifier "flip:" followed by a
wenzelm@68543
   963
list of theorems. Each of these theorems is removed from the simpset
wenzelm@68543
   964
(without warning if it is not there) and the symmetric version of the
wenzelm@68543
   965
theorem (i.e. lhs and rhs exchanged) is added to the simpset. For "auto"
wenzelm@68543
   966
and friends the modifier is "simp flip:".
wenzelm@67718
   967
wenzelm@67718
   968
blanchet@66661
   969
*** HOL ***
blanchet@66661
   970
wenzelm@68568
   971
* Sledgehammer: bundled version of "vampire" (for non-commercial users)
wenzelm@68568
   972
helps to avoid fragility of "remote_vampire" service.
wenzelm@68568
   973
haftmann@68028
   974
* Clarified relationship of characters, strings and code generation:
haftmann@68028
   975
wenzelm@68393
   976
  - Type "char" is now a proper datatype of 8-bit values.
wenzelm@68393
   977
wenzelm@68393
   978
  - Conversions "nat_of_char" and "char_of_nat" are gone; use more
wenzelm@68393
   979
    general conversions "of_char" and "char_of" with suitable type
wenzelm@68393
   980
    constraints instead.
wenzelm@68393
   981
wenzelm@68393
   982
  - The zero character is just written "CHR 0x00", not "0" any longer.
wenzelm@68393
   983
wenzelm@68393
   984
  - Type "String.literal" (for code generation) is now isomorphic to
wenzelm@68393
   985
    lists of 7-bit (ASCII) values; concrete values can be written as
wenzelm@68393
   986
    "STR ''...''" for sequences of printable characters and "STR 0x..."
wenzelm@68393
   987
    for one single ASCII code point given as hexadecimal numeral.
wenzelm@68393
   988
wenzelm@68393
   989
  - Type "String.literal" supports concatenation "... + ..." for all
wenzelm@68393
   990
    standard target languages.
wenzelm@68393
   991
wenzelm@68393
   992
  - Theory HOL-Library.Code_Char is gone; study the explanations
wenzelm@68393
   993
    concerning "String.literal" in the tutorial on code generation to
wenzelm@68393
   994
    get an idea how target-language string literals can be converted to
wenzelm@68393
   995
    HOL string values and vice versa.
wenzelm@68393
   996
wenzelm@68393
   997
  - Session Imperative-HOL: operation "raise" directly takes a value of
wenzelm@68393
   998
    type "String.literal" as argument, not type "string".
wenzelm@68393
   999
wenzelm@68393
  1000
INCOMPATIBILITY.
wenzelm@68393
  1001
wenzelm@68393
  1002
* Code generation: Code generation takes an explicit option
wenzelm@68393
  1003
"case_insensitive" to accomodate case-insensitive file systems.
wenzelm@68393
  1004
wenzelm@68393
  1005
* Abstract bit operations as part of Main: push_bit, take_bit, drop_bit.
wenzelm@68393
  1006
wenzelm@68393
  1007
* New, more general, axiomatization of complete_distrib_lattice. The
wenzelm@68393
  1008
former axioms:
wenzelm@68393
  1009
wenzelm@68393
  1010
  "sup x (Inf X) = Inf (sup x ` X)" and "inf x (Sup X) = Sup (inf x ` X)"
wenzelm@68393
  1011
wenzelm@68393
  1012
are replaced by:
wenzelm@68393
  1013
wenzelm@68393
  1014
  "Inf (Sup ` A) <= Sup (Inf ` {f ` A | f . (! Y \<in> A . f Y \<in> Y)})"
wenzelm@68393
  1015
wenzelm@68393
  1016
The instantiations of sets and functions as complete_distrib_lattice are
wenzelm@68393
  1017
moved to Hilbert_Choice.thy because their proofs need the Hilbert choice
wenzelm@68393
  1018
operator. The dual of this property is also proved in theory
wenzelm@68393
  1019
HOL.Hilbert_Choice.
eberlm@67831
  1020
lp15@67999
  1021
* New syntax for the minimum/maximum of a function over a finite set:
wenzelm@68393
  1022
MIN x\<in>A. B and even MIN x. B (only useful for finite types), also MAX.
lp15@67999
  1023
haftmann@67525
  1024
* Clarifed theorem names:
haftmann@67525
  1025
haftmann@67525
  1026
  Min.antimono ~> Min.subset_imp
haftmann@67525
  1027
  Max.antimono ~> Max.subset_imp
haftmann@67525
  1028
haftmann@67525
  1029
Minor INCOMPATIBILITY.
haftmann@67525
  1030
blanchet@66661
  1031
* SMT module:
wenzelm@68393
  1032
blanchet@66661
  1033
  - The 'smt_oracle' option is now necessary when using the 'smt' method
blanchet@66662
  1034
    with a solver other than Z3. INCOMPATIBILITY.
wenzelm@68393
  1035
wenzelm@66844
  1036
  - The encoding to first-order logic is now more complete in the
wenzelm@66844
  1037
    presence of higher-order quantifiers. An 'smt_explicit_application'
wenzelm@66844
  1038
    option has been added to control this. INCOMPATIBILITY.
wenzelm@66844
  1039
haftmann@66804
  1040
* Facts sum.commute(_restrict) and prod.commute(_restrict) renamed to
wenzelm@66844
  1041
sum.swap(_restrict) and prod.swap(_restrict), to avoid name clashes on
wenzelm@66844
  1042
interpretation of abstract locales. INCOMPATIBILITY.
haftmann@66804
  1043
wenzelm@68393
  1044
* Predicate coprime is now a real definition, not a mere abbreviation.
wenzelm@68393
  1045
INCOMPATIBILITY.
wenzelm@68393
  1046
haftmann@66803
  1047
* Predicate pairwise_coprime abolished, use "pairwise coprime" instead.
haftmann@66803
  1048
INCOMPATIBILITY.
haftmann@66803
  1049
lp15@68373
  1050
* The relator rel_filter on filters has been strengthened to its
wenzelm@68393
  1051
canonical categorical definition with better properties.
wenzelm@68393
  1052
INCOMPATIBILITY.
Andreas@67616
  1053
immler@68072
  1054
* Generalized linear algebra involving linear, span, dependent, dim
immler@68072
  1055
from type class real_vector to locales module and vector_space.
immler@68072
  1056
Renamed:
wenzelm@68393
  1057
wenzelm@68393
  1058
  span_inc ~> span_superset
wenzelm@68393
  1059
  span_superset ~> span_base
wenzelm@68393
  1060
  span_eq ~> span_eq_iff
wenzelm@68393
  1061
wenzelm@68393
  1062
INCOMPATIBILITY.
wenzelm@66844
  1063
haftmann@66937
  1064
* Class linordered_semiring_1 covers zero_less_one also, ruling out
haftmann@66937
  1065
pathologic instances. Minor INCOMPATIBILITY.
haftmann@66937
  1066
wenzelm@68393
  1067
* Theory HOL.List: functions "sorted_wrt" and "sorted" now compare every
wenzelm@68393
  1068
element in a list to all following elements, not just the next one.
wenzelm@68393
  1069
wenzelm@68393
  1070
* Theory HOL.List syntax:
wenzelm@68393
  1071
wenzelm@68393
  1072
  - filter-syntax "[x <- xs. P]" is no longer output syntax, but only
wenzelm@68393
  1073
    input syntax
wenzelm@68393
  1074
wenzelm@68393
  1075
  - list comprehension syntax now supports tuple patterns in "pat <- xs"
nipkow@68249
  1076
nipkow@68450
  1077
* Theory Map: "empty" must now be qualified as "Map.empty".
nipkow@68450
  1078
haftmann@67051
  1079
* Removed nat-int transfer machinery. Rare INCOMPATIBILITY.
haftmann@67051
  1080
haftmann@68100
  1081
* Fact mod_mult_self4 (on nat) renamed to Suc_mod_mult_self3, to avoid
haftmann@68100
  1082
clash with fact mod_mult_self4 (on more generic semirings).
haftmann@68100
  1083
INCOMPATIBILITY.
haftmann@68100
  1084
haftmann@68100
  1085
* Eliminated some theorem aliasses:
haftmann@68100
  1086
  even_times_iff ~> even_mult_iff
haftmann@68100
  1087
  mod_2_not_eq_zero_eq_one_nat ~> not_mod_2_eq_0_eq_1
haftmann@68100
  1088
  even_of_nat ~> even_int_iff
haftmann@68100
  1089
haftmann@68100
  1090
INCOMPATIBILITY.
haftmann@68100
  1091
haftmann@68157
  1092
* Eliminated some theorem duplicate variations:
wenzelm@68393
  1093
wenzelm@68393
  1094
  - dvd_eq_mod_eq_0_numeral can be replaced by dvd_eq_mod_eq_0
wenzelm@68393
  1095
  - mod_Suc_eq_Suc_mod can be replaced by mod_Suc
wenzelm@68393
  1096
  - mod_Suc_eq_Suc_mod [symmetrict] can be replaced by mod_simps
wenzelm@68393
  1097
  - mod_eq_0_iff can be replaced by mod_eq_0_iff_dvd and dvd_def
wenzelm@68393
  1098
  - the witness of mod_eqD can be given directly as "_ div _"
haftmann@68157
  1099
haftmann@68157
  1100
INCOMPATIBILITY.
haftmann@68157
  1101
haftmann@68260
  1102
* Classical setup: Assumption "m mod d = 0" (for m d :: nat) is no
wenzelm@68393
  1103
longer aggresively destroyed to "\<exists>q. m = d * q". INCOMPATIBILITY, adding
wenzelm@68393
  1104
"elim!: dvd" to classical proof methods in most situations restores
wenzelm@68393
  1105
broken proofs.
wenzelm@68393
  1106
wenzelm@68393
  1107
* Theory HOL-Library.Conditional_Parametricity provides command
wenzelm@68393
  1108
'parametric_constant' for proving parametricity of non-recursive
wenzelm@68393
  1109
definitions. For constants that are not fully parametric the command
wenzelm@68393
  1110
will infer conditions on relations (e.g., bi_unique, bi_total, or type
wenzelm@68393
  1111
class conditions such as "respects 0") sufficient for parametricity. See
wenzelm@68393
  1112
theory HOL-ex.Conditional_Parametricity_Examples for some examples.
wenzelm@68393
  1113
wenzelm@68393
  1114
* Theory HOL-Library.Code_Lazy provides a new preprocessor for the code
wenzelm@68393
  1115
generator to generate code for algebraic types with lazy evaluation
Andreas@68639
  1116
semantics even in call-by-value target languages. See the theories
wenzelm@68647
  1117
HOL-ex.Code_Lazy_Demo and HOL-Codegenerator_Test.Code_Lazy_Test for some
wenzelm@68647
  1118
examples.
wenzelm@68393
  1119
wenzelm@68393
  1120
* Theory HOL-Library.Landau_Symbols has been moved here from AFP.
wenzelm@68393
  1121
wenzelm@68393
  1122
* Theory HOL-Library.Old_Datatype no longer provides the legacy command
wenzelm@68393
  1123
'old_datatype'. INCOMPATIBILITY.
wenzelm@68393
  1124
wenzelm@68393
  1125
* Theory HOL-Computational_Algebra.Polynomial_Factorial does not provide
wenzelm@68393
  1126
instances of rat, real, complex as factorial rings etc. Import
wenzelm@68393
  1127
HOL-Computational_Algebra.Field_as_Ring explicitly in case of need.
wenzelm@68393
  1128
INCOMPATIBILITY.
wenzelm@68393
  1129
wenzelm@68393
  1130
* Session HOL-Algebra: renamed (^) to [^] to avoid conflict with new
wenzelm@68393
  1131
infix/prefix notation.
wenzelm@68393
  1132
wenzelm@68543
  1133
* Session HOL-Algebra: revamped with much new material. The set of
wenzelm@68543
  1134
isomorphisms between two groups is now denoted iso rather than iso_set.
wenzelm@68543
  1135
INCOMPATIBILITY.
wenzelm@68543
  1136
wenzelm@68543
  1137
* Session HOL-Analysis: the Arg function now respects the same interval
wenzelm@68543
  1138
as Ln, namely (-pi,pi]; the old Arg function has been renamed Arg2pi.
lp15@68499
  1139
INCOMPATIBILITY.
lp15@68499
  1140
wenzelm@68548
  1141
* Session HOL-Analysis: the functions zorder, zer_poly, porder and
wenzelm@68548
  1142
pol_poly have been redefined. All related lemmas have been reworked.
wl302@68531
  1143
INCOMPATIBILITY.
wl302@68531
  1144
wenzelm@68393
  1145
* Session HOL-Analysis: infinite products, Moebius functions, the
wenzelm@68393
  1146
Riemann mapping theorem, the Vitali covering theorem,
wenzelm@68393
  1147
change-of-variables results for integration and measures.
haftmann@68260
  1148
wenzelm@68647
  1149
* Session HOL-Real_Asymp: proof method "real_asymp" proves asymptotics
wenzelm@68647
  1150
or real-valued functions (limits, "Big-O", etc.) automatically.
wenzelm@68681
  1151
See also ~~/src/HOL/Real_Asymp/Manual for some documentation.
wenzelm@68647
  1152
wenzelm@68545
  1153
* Session HOL-Types_To_Sets: more tool support (unoverload_type combines
wenzelm@68545
  1154
internalize_sorts and unoverload) and larger experimental application
wenzelm@68545
  1155
(type based linear algebra transferred to linear algebra on subspaces).
immler@68522
  1156
wenzelm@66651
  1157
wenzelm@68116
  1158
*** ML ***
wenzelm@68116
  1159
wenzelm@68116
  1160
* Operation Export.export emits theory exports (arbitrary blobs), which
wenzelm@69960
  1161
are stored persistently in the session build database.
wenzelm@68116
  1162
wenzelm@68276
  1163
* Command 'ML_export' exports ML toplevel bindings to the global
wenzelm@68276
  1164
bootstrap environment of the ML process. This allows ML evaluation
wenzelm@68276
  1165
without a formal theory context, e.g. in command-line tools like
wenzelm@68276
  1166
"isabelle process".
wenzelm@68276
  1167
wenzelm@68116
  1168
wenzelm@66729
  1169
*** System ***
wenzelm@66729
  1170
wenzelm@67088
  1171
* Mac OS X 10.10 Yosemite is now the baseline version; Mavericks is no
wenzelm@67088
  1172
longer supported.
wenzelm@67088
  1173
wenzelm@68393
  1174
* Linux and Windows/Cygwin is for x86_64 only, old 32bit platform
wenzelm@68393
  1175
support has been discontinued.
wenzelm@68393
  1176
wenzelm@66906
  1177
* Java runtime is for x86_64 only. Corresponding Isabelle settings have
wenzelm@66906
  1178
been renamed to ISABELLE_TOOL_JAVA_OPTIONS and JEDIT_JAVA_OPTIONS,
wenzelm@66906
  1179
instead of former 32/64 variants. INCOMPATIBILITY.
wenzelm@66906
  1180
wenzelm@68003
  1181
* Old settings ISABELLE_PLATFORM and ISABELLE_WINDOWS_PLATFORM should be
wenzelm@68003
  1182
phased out due to unclear preference of 32bit vs. 64bit architecture.
wenzelm@68003
  1183
Explicit GNU bash expressions are now preferred, for example (with
wenzelm@68003
  1184
quotes):
wenzelm@68003
  1185
wenzelm@68003
  1186
  #Posix executables (Unix or Cygwin), with preference for 64bit
wenzelm@68003
  1187
  "${ISABELLE_PLATFORM64:-$ISABELLE_PLATFORM32}"
wenzelm@68003
  1188
wenzelm@68003
  1189
  #native Windows or Unix executables, with preference for 64bit
wenzelm@68003
  1190
  "${ISABELLE_WINDOWS_PLATFORM64:-${ISABELLE_WINDOWS_PLATFORM32:-${ISABELLE_PLATFORM64:-$ISABELLE_PLATFORM32}}}"
wenzelm@68003
  1191
wenzelm@68003
  1192
  #native Windows (32bit) or Unix executables (preference for 64bit)
wenzelm@68003
  1193
  "${ISABELLE_WINDOWS_PLATFORM32:-${ISABELLE_PLATFORM64:-$ISABELLE_PLATFORM32}}"
wenzelm@68003
  1194
wenzelm@66745
  1195
* Command-line tool "isabelle build" supports new options:
wenzelm@66745
  1196
  - option -B NAME: include session NAME and all descendants
wenzelm@66745
  1197
  - option -S: only observe changes of sources, not heap images
wenzelm@66841
  1198
  - option -f: forces a fresh build
wenzelm@66737
  1199
wenzelm@68734
  1200
* Command-line tool "isabelle build" options -c -x -B refer to
wenzelm@68734
  1201
descendants wrt. the session parent or import graph. Subtle
wenzelm@68734
  1202
INCOMPATIBILITY: options -c -x used to refer to the session parent graph
wenzelm@68734
  1203
only.
wenzelm@68734
  1204
wenzelm@66843
  1205
* Command-line tool "isabelle build" takes "condition" options with the
wenzelm@66843
  1206
corresponding environment values into account, when determining the
wenzelm@66843
  1207
up-to-date status of a session.
wenzelm@66843
  1208
wenzelm@68393
  1209
* The command-line tool "dump" dumps information from the cumulative
wenzelm@68393
  1210
PIDE session database: many sessions may be loaded into a given logic
wenzelm@68393
  1211
image, results from all loaded theories are written to the output
wenzelm@68393
  1212
directory.
wenzelm@68393
  1213
wenzelm@66851
  1214
* Command-line tool "isabelle imports -I" also reports actual session
wenzelm@66851
  1215
imports. This helps to minimize the session dependency graph.
wenzelm@66851
  1216
wenzelm@69960
  1217
* The command-line tool "export" and 'export_files' in session ROOT
wenzelm@69960
  1218
entries retrieve theory exports from the session build database.
wenzelm@68393
  1219
wenzelm@68393
  1220
* The command-line tools "isabelle server" and "isabelle client" provide
wenzelm@68393
  1221
access to the Isabelle Server: it supports responsive session management
wenzelm@68393
  1222
and concurrent use of theories, based on Isabelle/PIDE infrastructure.
wenzelm@68393
  1223
See also the "system" manual.
wenzelm@68393
  1224
wenzelm@68393
  1225
* The command-line tool "isabelle update_comments" normalizes formal
wenzelm@68393
  1226
comments in outer syntax as follows: \<comment> \<open>text\<close> (whith a single space to
wenzelm@68393
  1227
approximate the appearance in document output). This is more specific
wenzelm@68393
  1228
than former "isabelle update_cartouches -c": the latter tool option has
wenzelm@68393
  1229
been discontinued.
wenzelm@68393
  1230
wenzelm@68393
  1231
* The command-line tool "isabelle mkroot" now always produces a document
wenzelm@68393
  1232
outline: its options have been adapted accordingly. INCOMPATIBILITY.
wenzelm@68393
  1233
wenzelm@68393
  1234
* The command-line tool "isabelle mkroot -I" initializes a Mercurial
wenzelm@68393
  1235
repository for the generated session files.
wenzelm@68393
  1236
wenzelm@68523
  1237
* Settings ISABELLE_HEAPS + ISABELLE_BROWSER_INFO (or
wenzelm@68523
  1238
ISABELLE_HEAPS_SYSTEM + ISABELLE_BROWSER_INFO_SYSTEM in "system build
wenzelm@68523
  1239
mode") determine the directory locations of the main build artefacts --
wenzelm@68523
  1240
instead of hard-wired directories in ISABELLE_HOME_USER (or
wenzelm@68523
  1241
ISABELLE_HOME).
wenzelm@68523
  1242
wenzelm@68393
  1243
* Settings ISABELLE_PATH and ISABELLE_OUTPUT have been discontinued:
wenzelm@68393
  1244
heap images and session databases are always stored in
wenzelm@68523
  1245
$ISABELLE_HEAPS/$ML_IDENTIFIER (command-line default) or
wenzelm@68523
  1246
$ISABELLE_HEAPS_SYSTEM/$ML_IDENTIFIER (main Isabelle application or
wenzelm@68393
  1247
"isabelle jedit -s" or "isabelle build -s").
wenzelm@67099
  1248
wenzelm@67199
  1249
* ISABELLE_LATEX and ISABELLE_PDFLATEX now include platform-specific
wenzelm@67199
  1250
options for improved error reporting. Potential INCOMPATIBILITY with
wenzelm@67199
  1251
unusual LaTeX installations, may have to adapt these settings.
wenzelm@67199
  1252
wenzelm@68393
  1253
* Update to Poly/ML 5.7.1 with slightly improved performance and PIDE
wenzelm@68393
  1254
markup for identifier bindings. It now uses The GNU Multiple Precision
wenzelm@67591
  1255
Arithmetic Library (libgmp) on all platforms, notably Mac OS X with
wenzelm@67591
  1256
32/64 bit.
wenzelm@67591
  1257
wenzelm@67099
  1258
wenzelm@66729
  1259
wenzelm@66472
  1260
New in Isabelle2017 (October 2017)
wenzelm@66472
  1261
----------------------------------
wenzelm@64439
  1262
wenzelm@64986
  1263
*** General ***
wenzelm@64986
  1264
wenzelm@66238
  1265
* Experimental support for Visual Studio Code (VSCode) as alternative
wenzelm@66238
  1266
Isabelle/PIDE front-end, see also
wenzelm@66599
  1267
https://marketplace.visualstudio.com/items?itemName=makarius.Isabelle2017
wenzelm@66238
  1268
wenzelm@66238
  1269
VSCode is a new type of application that continues the concepts of
wenzelm@66238
  1270
"programmer's editor" and "integrated development environment" towards
wenzelm@66238
  1271
fully semantic editing and debugging -- in a relatively light-weight
wenzelm@66238
  1272
manner. Thus it fits nicely on top of the Isabelle/PIDE infrastructure.
wenzelm@66238
  1273
Technically, VSCode is based on the Electron application framework
wenzelm@66238
  1274
(Node.js + Chromium browser + V8), which is implemented in JavaScript
wenzelm@66238
  1275
and TypeScript, while Isabelle/VSCode mainly consists of Isabelle/Scala
wenzelm@66238
  1276
modules around a Language Server implementation.
wenzelm@66238
  1277
wenzelm@65504
  1278
* Theory names are qualified by the session name that they belong to.
wenzelm@66454
  1279
This affects imports, but not the theory name space prefix (which is
wenzelm@66454
  1280
just the theory base name as before).
wenzelm@66454
  1281
wenzelm@66454
  1282
In order to import theories from other sessions, the ROOT file format
wenzelm@66454
  1283
provides a new 'sessions' keyword. In contrast, a theory that is
wenzelm@66454
  1284
imported in the old-fashioned manner via an explicit file-system path
wenzelm@66472
  1285
belongs to the current session, and might cause theory name conflicts
wenzelm@66454
  1286
later on. Theories that are imported from other sessions are excluded
wenzelm@66454
  1287
from the current session document. The command-line tool "isabelle
wenzelm@66454
  1288
imports" helps to update theory imports.
wenzelm@66454
  1289
wenzelm@65451
  1290
* The main theory entry points for some non-HOL sessions have changed,
wenzelm@65451
  1291
to avoid confusion with the global name "Main" of the session HOL. This
wenzelm@65451
  1292
leads to the follow renamings:
wenzelm@65451
  1293
wenzelm@65451
  1294
  CTT/Main.thy    ~>  CTT/CTT.thy
wenzelm@65451
  1295
  ZF/Main.thy     ~>  ZF/ZF.thy
wenzelm@65451
  1296
  ZF/Main_ZF.thy  ~>  ZF/ZF.thy
wenzelm@65451
  1297
  ZF/Main_ZFC.thy ~>  ZF/ZFC.thy
wenzelm@65451
  1298
  ZF/ZF.thy       ~>  ZF/ZF_Base.thy
wenzelm@65451
  1299
wenzelm@65451
  1300
INCOMPATIBILITY.
wenzelm@65451
  1301
wenzelm@66472
  1302
* Commands 'alias' and 'type_alias' introduce aliases for constants and
wenzelm@66472
  1303
type constructors, respectively. This allows adhoc changes to name-space
wenzelm@66472
  1304
accesses within global or local theory contexts, e.g. within a 'bundle'.
wenzelm@66472
  1305
wenzelm@64986
  1306
* Document antiquotations @{prf} and @{full_prf} output proof terms
wenzelm@64986
  1307
(again) in the same way as commands 'prf' and 'full_prf'.
wenzelm@64986
  1308
wenzelm@65055
  1309
* Computations generated by the code generator can be embedded directly
wenzelm@65055
  1310
into ML, alongside with @{code} antiquotations, using the following
wenzelm@65055
  1311
antiquotations:
wenzelm@65055
  1312
wenzelm@65055
  1313
  @{computation ... terms: ... datatypes: ...} :
wenzelm@65055
  1314
    ((term -> term) -> 'ml option -> 'a) -> Proof.context -> term -> 'a
wenzelm@65055
  1315
  @{computation_conv ... terms: ... datatypes: ...} :
wenzelm@65055
  1316
    (Proof.context -> 'ml -> conv) -> Proof.context -> conv
wenzelm@65045
  1317
  @{computation_check terms: ... datatypes: ...} : Proof.context -> conv
haftmann@65041
  1318
wenzelm@65055
  1319
See src/HOL/ex/Computations.thy,
wenzelm@65055
  1320
src/HOL/Decision_Procs/Commutative_Ring.thy and
wenzelm@65055
  1321
src/HOL/Decision_Procs/Reflective_Field.thy for examples and the
wenzelm@65055
  1322
tutorial on code generation.
haftmann@65041
  1323
wenzelm@64986
  1324
wenzelm@64602
  1325
*** Prover IDE -- Isabelle/Scala/jEdit ***
wenzelm@64602
  1326
wenzelm@66472
  1327
* Session-qualified theory imports allow the Prover IDE to process
wenzelm@66472
  1328
arbitrary theory hierarchies independently of the underlying logic
wenzelm@66472
  1329
session image (e.g. option "isabelle jedit -l"), but the directory
wenzelm@66472
  1330
structure needs to be known in advance (e.g. option "isabelle jedit -d"
wenzelm@66472
  1331
or a line in the file $ISABELLE_HOME_USER/ROOTS).
wenzelm@64602
  1332
wenzelm@64842
  1333
* The PIDE document model maintains file content independently of the
wenzelm@64842
  1334
status of jEdit editor buffers. Reloading jEdit buffers no longer causes
wenzelm@64842
  1335
changes of formal document content. Theory dependencies are always
wenzelm@64842
  1336
resolved internally, without the need for corresponding editor buffers.
wenzelm@64842
  1337
The system option "jedit_auto_load" has been discontinued: it is
wenzelm@64842
  1338
effectively always enabled.
wenzelm@64842
  1339
wenzelm@64867
  1340
* The Theories dockable provides a "Purge" button, in order to restrict
wenzelm@64867
  1341
the document model to theories that are required for open editor
wenzelm@64867
  1342
buffers.
wenzelm@64867
  1343
wenzelm@66424
  1344
* The Theories dockable indicates the overall status of checking of each
wenzelm@66424
  1345
entry. When all forked tasks of a theory are finished, the border is
wenzelm@66424
  1346
painted with thick lines; remaining errors in this situation are
wenzelm@66424
  1347
represented by a different border color.
wenzelm@66424
  1348
wenzelm@66472
  1349
* Automatic indentation is more careful to avoid redundant spaces in
wenzelm@66472
  1350
intermediate situations. Keywords are indented after input (via typed
wenzelm@66472
  1351
characters or completion); see also option "jedit_indent_input".
wenzelm@66472
  1352
wenzelm@66472
  1353
* Action "isabelle.preview" opens an HTML preview of the current theory
wenzelm@66472
  1354
document in the default web browser.
wenzelm@66472
  1355
wenzelm@66574
  1356
* Command-line invocation "isabelle jedit -R -l LOGIC" opens the ROOT
wenzelm@66574
  1357
entry of the specified logic session in the editor, while its parent is
wenzelm@66574
  1358
used for formal checking.
wenzelm@66472
  1359
wenzelm@66462
  1360
* The main Isabelle/jEdit plugin may be restarted manually (using the
wenzelm@66462
  1361
jEdit Plugin Manager), as long as the "Isabelle Base" plugin remains
wenzelm@66462
  1362
enabled at all times.
wenzelm@66462
  1363
wenzelm@66472
  1364
* Update to current jedit-5.4.0.
wenzelm@65329
  1365
wenzelm@64602
  1366
haftmann@66149
  1367
*** Pure ***
haftmann@66149
  1368
haftmann@66149
  1369
* Deleting the last code equations for a particular function using
haftmann@66149
  1370
[code del] results in function with no equations (runtime abort) rather
wenzelm@66472
  1371
than an unimplemented function (generation time abort). Use explicit
haftmann@66665
  1372
[[code drop:]] to enforce the latter. Minor INCOMPATIBILITY.
haftmann@66149
  1373
haftmann@66310
  1374
* Proper concept of code declarations in code.ML:
wenzelm@66472
  1375
  - Regular code declarations act only on the global theory level, being
wenzelm@66472
  1376
    ignored with warnings if syntactically malformed.
wenzelm@66472
  1377
  - Explicitly global code declarations yield errors if syntactically
wenzelm@66472
  1378
    malformed.
wenzelm@66472
  1379
  - Default code declarations are silently ignored if syntactically
wenzelm@66472
  1380
    malformed.
haftmann@66310
  1381
Minor INCOMPATIBILITY.
haftmann@66310
  1382
wenzelm@66472
  1383
* Clarified and standardized internal data bookkeeping of code
wenzelm@66472
  1384
declarations: history of serials allows to track potentially
wenzelm@66472
  1385
non-monotonous declarations appropriately. Minor INCOMPATIBILITY.
haftmann@66310
  1386
haftmann@66149
  1387
haftmann@64593
  1388
*** HOL ***
haftmann@64593
  1389
blanchet@66614
  1390
* The Nunchaku model finder is now part of "Main".
blanchet@66614
  1391
wenzelm@66472
  1392
* SMT module:
wenzelm@66472
  1393
  - A new option, 'smt_nat_as_int', has been added to translate 'nat' to
wenzelm@66472
  1394
    'int' and benefit from the SMT solver's theory reasoning. It is
wenzelm@66472
  1395
    disabled by default.
wenzelm@66472
  1396
  - The legacy module "src/HOL/Library/Old_SMT.thy" has been removed.
wenzelm@66472
  1397
  - Several small issues have been rectified in the 'smt' command.
wenzelm@66472
  1398
wenzelm@66472
  1399
* (Co)datatype package: The 'size_gen_o_map' lemma is no longer
wenzelm@66472
  1400
generated for datatypes with type class annotations. As a result, the
wenzelm@66472
  1401
tactic that derives it no longer fails on nested datatypes. Slight
wenzelm@66472
  1402
INCOMPATIBILITY.
eberlm@66450
  1403
haftmann@66345
  1404
* Command and antiquotation "value" with modified default strategy:
haftmann@66345
  1405
terms without free variables are always evaluated using plain evaluation
wenzelm@66472
  1406
only, with no fallback on normalization by evaluation. Minor
wenzelm@66472
  1407
INCOMPATIBILITY.
eberlm@65956
  1408
wenzelm@65552
  1409
* Theories "GCD" and "Binomial" are already included in "Main" (instead
wenzelm@65575
  1410
of "Complex_Main").
wenzelm@65552
  1411
haftmann@65170
  1412
* Constant "surj" is a full input/output abbreviation (again).
haftmann@65170
  1413
Minor INCOMPATIBILITY.
haftmann@65170
  1414
haftmann@64632
  1415
* Dropped aliasses RangeP, DomainP for Rangep, Domainp respectively.
haftmann@64632
  1416
INCOMPATIBILITY.
haftmann@64632
  1417
wenzelm@66472
  1418
* Renamed ii to imaginary_unit in order to free up ii as a variable
wenzelm@66472
  1419
name. The syntax \<i> remains available. INCOMPATIBILITY.
wenzelm@66472
  1420
wenzelm@66472
  1421
* Dropped abbreviations transP, antisymP, single_valuedP; use constants
wenzelm@66472
  1422
transp, antisymp, single_valuedp instead. INCOMPATIBILITY.
wenzelm@66472
  1423
wenzelm@66472
  1424
* Constant "subseq" in Topological_Spaces has been removed -- it is
wenzelm@66472
  1425
subsumed by "strict_mono". Some basic lemmas specific to "subseq" have
wenzelm@66472
  1426
been renamed accordingly, e.g. "subseq_o" -> "strict_mono_o" etc.
wenzelm@66472
  1427
wenzelm@66472
  1428
* Theory List: "sublist" renamed to "nths" in analogy with "nth", and
wenzelm@66472
  1429
"sublisteq" renamed to "subseq". Minor INCOMPATIBILITY.
wenzelm@66472
  1430
wenzelm@66472
  1431
* Theory List: new generic function "sorted_wrt".
wenzelm@66472
  1432
wenzelm@66472
  1433
* Named theorems mod_simps covers various congruence rules concerning
wenzelm@66472
  1434
mod, replacing former zmod_simps. INCOMPATIBILITY.
haftmann@64787
  1435
haftmann@64593
  1436
* Swapped orientation of congruence rules mod_add_left_eq,
haftmann@64593
  1437
mod_add_right_eq, mod_add_eq, mod_mult_left_eq, mod_mult_right_eq,
haftmann@64593
  1438
mod_mult_eq, mod_minus_eq, mod_diff_left_eq, mod_diff_right_eq,
wenzelm@66472
  1439
mod_diff_eq. INCOMPATIBILITY.
haftmann@64593
  1440
haftmann@64593
  1441
* Generalized some facts:
blanchet@64876
  1442
    measure_induct_rule
blanchet@64876
  1443
    measure_induct
haftmann@64593
  1444
    zminus_zmod ~> mod_minus_eq
haftmann@64593
  1445
    zdiff_zmod_left ~> mod_diff_left_eq
haftmann@64593
  1446
    zdiff_zmod_right ~> mod_diff_right_eq
haftmann@64593
  1447
    zmod_eq_dvd_iff ~> mod_eq_dvd_iff
haftmann@64593
  1448
INCOMPATIBILITY.
haftmann@64593
  1449
wenzelm@66472
  1450
* Algebraic type class hierarchy of euclidean (semi)rings in HOL:
wenzelm@66472
  1451
euclidean_(semi)ring, euclidean_(semi)ring_cancel,
wenzelm@66472
  1452
unique_euclidean_(semi)ring; instantiation requires provision of a
wenzelm@66472
  1453
euclidean size.
wenzelm@66472
  1454
wenzelm@66472
  1455
* Theory "HOL-Number_Theory.Euclidean_Algorithm" has been reworked:
wenzelm@66472
  1456
  - Euclidean induction is available as rule eucl_induct.
wenzelm@66472
  1457
  - Constants Euclidean_Algorithm.gcd, Euclidean_Algorithm.lcm,
wenzelm@66472
  1458
    Euclidean_Algorithm.Gcd and Euclidean_Algorithm.Lcm allow
wenzelm@66472
  1459
    easy instantiation of euclidean (semi)rings as GCD (semi)rings.
wenzelm@66472
  1460
  - Coefficients obtained by extended euclidean algorithm are
wenzelm@66472
  1461
    available as "bezout_coefficients".
wenzelm@66472
  1462
INCOMPATIBILITY.
wenzelm@66472
  1463
wenzelm@66472
  1464
* Theory "Number_Theory.Totient" introduces basic notions about Euler's
wenzelm@66472
  1465
totient function previously hidden as solitary example in theory
wenzelm@66472
  1466
Residues. Definition changed so that "totient 1 = 1" in agreement with
wenzelm@66472
  1467
the literature. Minor INCOMPATIBILITY.
wenzelm@66472
  1468
wenzelm@66542
  1469
* New styles in theory "HOL-Library.LaTeXsugar":
nipkow@66541
  1470
  - "dummy_pats" for printing equations with "_" on the lhs;
nipkow@66541
  1471
  - "eta_expand" for printing eta-expanded terms.
nipkow@66541
  1472
wenzelm@66472
  1473
* Theory "HOL-Library.Permutations": theorem bij_swap_ompose_bij has
wenzelm@66472
  1474
been renamed to bij_swap_compose_bij. INCOMPATIBILITY.
wenzelm@66472
  1475
lp15@66643
  1476
* New theory "HOL-Library.Going_To_Filter" providing the "f going_to F"
eberlm@66488
  1477
filter for describing points x such that f(x) is in the filter F.
eberlm@66488
  1478
eberlm@66480
  1479
* Theory "HOL-Library.Formal_Power_Series": constants X/E/L/F have been
eberlm@66480
  1480
renamed to fps_X/fps_exp/fps_ln/fps_hypergeo to avoid polluting the name
wenzelm@66472
  1481
space. INCOMPATIBILITY.
wenzelm@66472
  1482
wenzelm@66472
  1483
* Theory "HOL-Library.FinFun" has been moved to AFP (again).
wenzelm@66472
  1484
INCOMPATIBILITY.
wenzelm@66472
  1485
wenzelm@66472
  1486
* Theory "HOL-Library.FuncSet": some old and rarely used ASCII
wenzelm@66472
  1487
replacement syntax has been removed. INCOMPATIBILITY, standard syntax
wenzelm@66472
  1488
with symbols should be used instead. The subsequent commands help to
wenzelm@66472
  1489
reproduce the old forms, e.g. to simplify porting old theories:
wenzelm@66472
  1490
wenzelm@66472
  1491
syntax (ASCII)
wenzelm@66472
  1492
  "_PiE" :: "pttrn \<Rightarrow> 'a set \<Rightarrow> 'b set \<Rightarrow> ('a \<Rightarrow> 'b) set"  ("(3PIE _:_./ _)" 10)
wenzelm@66472
  1493
  "_Pi"  :: "pttrn \<Rightarrow> 'a set \<Rightarrow> 'b set \<Rightarrow> ('a \<Rightarrow> 'b) set"  ("(3PI _:_./ _)" 10)
wenzelm@66472
  1494
  "_lam" :: "pttrn \<Rightarrow> 'a set \<Rightarrow> 'a \<Rightarrow> 'b \<Rightarrow> ('a \<Rightarrow> 'b)"  ("(3%_:_./ _)" [0,0,3] 3)
wenzelm@66472
  1495
wenzelm@66472
  1496
* Theory "HOL-Library.Multiset": the simprocs on subsets operators of
wenzelm@66472
  1497
multisets have been renamed:
wenzelm@66472
  1498
wenzelm@66472
  1499
  msetless_cancel_numerals ~> msetsubset_cancel
wenzelm@66472
  1500
  msetle_cancel_numerals ~> msetsubset_eq_cancel
wenzelm@66472
  1501
wenzelm@66472
  1502
INCOMPATIBILITY.
wenzelm@66472
  1503
lars@66481
  1504
* Theory "HOL-Library.Pattern_Aliases" provides input and output syntax
lars@66481
  1505
for pattern aliases as known from Haskell, Scala and ML.
blanchet@65515
  1506
Andreas@66563
  1507
* Theory "HOL-Library.Uprod" formalizes the type of unordered pairs.
Andreas@66563
  1508
wenzelm@64898
  1509
* Session HOL-Analysis: more material involving arcs, paths, covering
wenzelm@66650
  1510
spaces, innessential maps, retracts, infinite products, simplicial
wenzelm@66650
  1511
complexes. Baire Category theorem. Major results include the Jordan
wenzelm@66650
  1512
Curve Theorem and the Great Picard Theorem.
wenzelm@66472
  1513
wenzelm@66472
  1514
* Session HOL-Algebra has been extended by additional lattice theory:
wenzelm@66472
  1515
the Knaster-Tarski fixed point theorem and Galois Connections.
wenzelm@66472
  1516
wenzelm@66472
  1517
* Sessions HOL-Computational_Algebra and HOL-Number_Theory: new notions
wenzelm@66472
  1518
of squarefreeness, n-th powers, and prime powers.
wenzelm@66472
  1519
wenzelm@66472
  1520
* Session "HOL-Computional_Algebra" covers many previously scattered
wenzelm@66472
  1521
theories, notably Euclidean_Algorithm, Factorial_Ring,
wenzelm@66472
  1522
Formal_Power_Series, Fraction_Field, Fundamental_Theorem_Algebra,
wenzelm@66472
  1523
Normalized_Fraction, Polynomial_FPS, Polynomial, Primes. Minor
wenzelm@66472
  1524
INCOMPATIBILITY.
Mathias@65027
  1525
wenzelm@60331
  1526
wenzelm@64844
  1527
*** System ***
wenzelm@64844
  1528
wenzelm@66474
  1529
* Isabelle/Scala: the SQL module supports access to relational
wenzelm@66474
  1530
databases, either as plain file (SQLite) or full-scale server
wenzelm@66474
  1531
(PostgreSQL via local port or remote ssh connection).
wenzelm@66474
  1532
wenzelm@66474
  1533
* Results of "isabelle build" are recorded as SQLite database (i.e.
wenzelm@66474
  1534
"Application File Format" in the sense of
wenzelm@66474
  1535
https://www.sqlite.org/appfileformat.html). This allows systematic
wenzelm@66474
  1536
access via operations from module Sessions.Store in Isabelle/Scala.
wenzelm@66474
  1537
wenzelm@66472
  1538
* System option "parallel_proofs" is 1 by default (instead of more
wenzelm@66472
  1539
aggressive 2). This requires less heap space and avoids burning parallel
wenzelm@66472
  1540
CPU cycles, while full subproof parallelization is enabled for repeated
wenzelm@66472
  1541
builds (according to parallel_subproofs_threshold).
wenzelm@65072
  1542
wenzelm@65448
  1543
* System option "record_proofs" allows to change the global
wenzelm@65448
  1544
Proofterm.proofs variable for a session. Regular values are are 0, 1, 2;
wenzelm@65448
  1545
a negative value means the current state in the ML heap image remains
wenzelm@65448
  1546
unchanged.
wenzelm@65448
  1547
wenzelm@66472
  1548
* Isabelle settings variable ISABELLE_SCALA_BUILD_OPTIONS has been
wenzelm@66472
  1549
renamed to ISABELLE_SCALAC_OPTIONS. Rare INCOMPATIBILITY.
wenzelm@66472
  1550
wenzelm@66472
  1551
* Isabelle settings variables ISABELLE_WINDOWS_PLATFORM,
wenzelm@66472
  1552
ISABELLE_WINDOWS_PLATFORM32, ISABELLE_WINDOWS_PLATFORM64 indicate the
wenzelm@66472
  1553
native Windows platform (independently of the Cygwin installation). This
wenzelm@66472
  1554
is analogous to ISABELLE_PLATFORM, ISABELLE_PLATFORM32,
wenzelm@66472
  1555
ISABELLE_PLATFORM64.
wenzelm@65557
  1556
wenzelm@66786
  1557
* Command-line tool "isabelle build_docker" builds a Docker image from
wenzelm@66786
  1558
the Isabelle application bundle for Linux. See also
wenzelm@66786
  1559
https://hub.docker.com/r/makarius/isabelle
wenzelm@66786
  1560
wenzelm@66473
  1561
* Command-line tool "isabelle vscode_server" provides a Language Server
wenzelm@66473
  1562
Protocol implementation, e.g. for the Visual Studio Code editor. It
wenzelm@66473
  1563
serves as example for alternative PIDE front-ends.
wenzelm@66473
  1564
wenzelm@66472
  1565
* Command-line tool "isabelle imports" helps to maintain theory imports
wenzelm@66671
  1566
wrt. session structure. Examples for the main Isabelle distribution:
wenzelm@66472
  1567
wenzelm@66472
  1568
  isabelle imports -I -a
wenzelm@66472
  1569
  isabelle imports -U -a
wenzelm@66472
  1570
  isabelle imports -U -i -a
wenzelm@66472
  1571
  isabelle imports -M -a -d '~~/src/Benchmarks'
wenzelm@66472
  1572
wenzelm@64844
  1573
wenzelm@67099
  1574
wenzelm@64072
  1575
New in Isabelle2016-1 (December 2016)
wenzelm@64072
  1576
-------------------------------------
wenzelm@62216
  1577
wenzelm@62440
  1578
*** General ***
wenzelm@62440
  1579
wenzelm@64390
  1580
* Splitter in proof methods "simp", "auto" and friends:
wenzelm@64390
  1581
  - The syntax "split add" has been discontinued, use plain "split",
wenzelm@64390
  1582
    INCOMPATIBILITY.
wenzelm@64390
  1583
  - For situations with many conditional or case expressions, there is
wenzelm@64390
  1584
    an alternative splitting strategy that can be much faster. It is
wenzelm@64390
  1585
    selected by writing "split!" instead of "split". It applies safe
wenzelm@64390
  1586
    introduction and elimination rules after each split rule. As a
wenzelm@64390
  1587
    result the subgoal may be split into several subgoals.
wenzelm@64390
  1588
wenzelm@63273
  1589
* Command 'bundle' provides a local theory target to define a bundle
wenzelm@63273
  1590
from the body of specification commands (such as 'declare',
wenzelm@63273
  1591
'declaration', 'notation', 'lemmas', 'lemma'). For example:
wenzelm@63273
  1592
wenzelm@63273
  1593
bundle foo
wenzelm@63273
  1594
begin
wenzelm@63273
  1595
  declare a [simp]
wenzelm@63273
  1596
  declare b [intro]
wenzelm@63273
  1597
end
wenzelm@63272
  1598
wenzelm@63282
  1599
* Command 'unbundle' is like 'include', but works within a local theory
wenzelm@63282
  1600
context. Unlike "context includes ... begin", the effect of 'unbundle'
wenzelm@63282
  1601
on the target context persists, until different declarations are given.
wenzelm@63282
  1602
wenzelm@63977
  1603
* Simplified outer syntax: uniform category "name" includes long
wenzelm@63977
  1604
identifiers. Former "xname" / "nameref" / "name reference" has been
wenzelm@63977
  1605
discontinued.
wenzelm@63977
  1606
wenzelm@63977
  1607
* Embedded content (e.g. the inner syntax of types, terms, props) may be
wenzelm@63977
  1608
delimited uniformly via cartouches. This works better than old-fashioned
wenzelm@63977
  1609
quotes when sub-languages are nested.
wenzelm@63977
  1610
wenzelm@63977
  1611
* Mixfix annotations support general block properties, with syntax
wenzelm@63977
  1612
"(\<open>x=a y=b z \<dots>\<close>". Notable property names are "indent", "consistent",
wenzelm@63977
  1613
"unbreakable", "markup". The existing notation "(DIGITS" is equivalent
wenzelm@63977
  1614
to "(\<open>indent=DIGITS\<close>". The former notation "(00" for unbreakable blocks
wenzelm@63977
  1615
is superseded by "(\<open>unbreabable\<close>" --- rare INCOMPATIBILITY.
nipkow@63650
  1616
wenzelm@63383
  1617
* Proof method "blast" is more robust wrt. corner cases of Pure
wenzelm@63383
  1618
statements without object-logic judgment.
wenzelm@63383
  1619
wenzelm@63624
  1620
* Commands 'prf' and 'full_prf' are somewhat more informative (again):
wenzelm@63977
  1621
proof terms are reconstructed and cleaned from administrative thm nodes.
wenzelm@63977
  1622
wenzelm@63977
  1623
* Code generator: config option "code_timing" triggers measurements of
wenzelm@63977
  1624
different phases of code generation. See src/HOL/ex/Code_Timing.thy for
wenzelm@63977
  1625
examples.
wenzelm@63977
  1626
wenzelm@63977
  1627
* Code generator: implicits in Scala (stemming from type class
wenzelm@63977
  1628
instances) are generated into companion object of corresponding type
wenzelm@63977
  1629
class, to resolve some situations where ambiguities may occur.
wenzelm@63977
  1630
wenzelm@64390
  1631
* Solve direct: option "solve_direct_strict_warnings" gives explicit
wenzelm@64390
  1632
warnings for lemma statements with trivial proofs.
haftmann@64013
  1633
wenzelm@64602
  1634
wenzelm@62904
  1635
*** Prover IDE -- Isabelle/Scala/jEdit ***
wenzelm@62904
  1636
wenzelm@64527
  1637
* More aggressive flushing of machine-generated input, according to
wenzelm@64527
  1638
system option editor_generated_input_delay (in addition to existing
wenzelm@64527
  1639
editor_input_delay for regular user edits). This may affect overall PIDE
wenzelm@64527
  1640
reactivity and CPU usage.
wenzelm@64527
  1641
wenzelm@64390
  1642
* Syntactic indentation according to Isabelle outer syntax. Action
wenzelm@64390
  1643
"indent-lines" (shortcut C+i) indents the current line according to
wenzelm@64390
  1644
command keywords and some command substructure. Action
wenzelm@64390
  1645
"isabelle.newline" (shortcut ENTER) indents the old and the new line
wenzelm@64390
  1646
according to command keywords only; see also option
wenzelm@64390
  1647
"jedit_indent_newline".
wenzelm@64390
  1648
wenzelm@64390
  1649
* Semantic indentation for unstructured proof scripts ('apply' etc.) via
wenzelm@64390
  1650
number of subgoals. This requires information of ongoing document
wenzelm@64390
  1651
processing and may thus lag behind, when the user is editing too
wenzelm@64390
  1652
quickly; see also option "jedit_script_indent" and
wenzelm@64390
  1653
"jedit_script_indent_limit".
wenzelm@64390
  1654
wenzelm@64390
  1655
* Refined folding mode "isabelle" based on Isar syntax: 'next' and 'qed'
wenzelm@64390
  1656
are treated as delimiters for fold structure; 'begin' and 'end'
wenzelm@64390
  1657
structure of theory specifications is treated as well.
wenzelm@64390
  1658
wenzelm@64390
  1659
* Command 'proof' provides information about proof outline with cases,
wenzelm@64390
  1660
e.g. for proof methods "cases", "induct", "goal_cases".
wenzelm@64390
  1661
wenzelm@64390
  1662
* Completion templates for commands involving "begin ... end" blocks,
wenzelm@64390
  1663
e.g. 'context', 'notepad'.
wenzelm@64390
  1664
wenzelm@64390
  1665
* Sidekick parser "isabelle-context" shows nesting of context blocks
wenzelm@64390
  1666
according to 'begin' and 'end' structure.
wenzelm@64390
  1667
wenzelm@63977
  1668
* Highlighting of entity def/ref positions wrt. cursor.
wenzelm@63977
  1669
wenzelm@63977
  1670
* Action "isabelle.select-entity" (shortcut CS+ENTER) selects all
wenzelm@64514
  1671
occurrences of the formal entity at the caret position. This facilitates
wenzelm@63977
  1672
systematic renaming.
wenzelm@63977
  1673
wenzelm@63977
  1674
* PIDE document markup works across multiple Isar commands, e.g. the
wenzelm@63977
  1675
results established at the end of a proof are properly identified in the
wenzelm@63977
  1676
theorem statement.
wenzelm@63977
  1677
wenzelm@63977
  1678
* Cartouche abbreviations work both for " and ` to accomodate typical
wenzelm@63977
  1679
situations where old ASCII notation may be updated.
wenzelm@63977
  1680
wenzelm@63875
  1681
* Dockable window "Symbols" also provides access to 'abbrevs' from the
wenzelm@63875
  1682
outer syntax of the current theory buffer. This provides clickable
wenzelm@63875
  1683
syntax templates, including entries with empty abbrevs name (which are
wenzelm@63875
  1684
inaccessible via keyboard completion).
wenzelm@63875
  1685
wenzelm@63022
  1686
* IDE support for the Isabelle/Pure bootstrap process, with the
wenzelm@63022
  1687
following independent stages:
wenzelm@63022
  1688
wenzelm@63022
  1689
  src/Pure/ROOT0.ML
wenzelm@63022
  1690
  src/Pure/ROOT.ML
wenzelm@63022
  1691
  src/Pure/Pure.thy
wenzelm@63022
  1692
  src/Pure/ML_Bootstrap.thy
wenzelm@63022
  1693
wenzelm@63022
  1694
The ML ROOT files act like quasi-theories in the context of theory
wenzelm@63022
  1695
ML_Bootstrap: this allows continuous checking of all loaded ML files.
wenzelm@63022
  1696
The theory files are presented with a modified header to import Pure
wenzelm@63022
  1697
from the running Isabelle instance. Results from changed versions of
wenzelm@63022
  1698
each stage are *not* propagated to the next stage, and isolated from the
wenzelm@63022
  1699
actual Isabelle/Pure that runs the IDE itself. The sequential
wenzelm@63307
  1700
dependencies of the above files are only observed for batch build.
wenzelm@62904
  1701
wenzelm@63977
  1702
* Isabelle/ML and Standard ML files are presented in Sidekick with the
wenzelm@63977
  1703
tree structure of section headings: this special comment format is
wenzelm@63977
  1704
described in "implementation" chapter 0, e.g. (*** section ***).
wenzelm@63461
  1705
wenzelm@63581
  1706
* Additional abbreviations for syntactic completion may be specified
wenzelm@63871
  1707
within the theory header as 'abbrevs'. The theory syntax for 'keywords'
wenzelm@63871
  1708
has been simplified accordingly: optional abbrevs need to go into the
wenzelm@63871
  1709
new 'abbrevs' section.
wenzelm@63871
  1710
wenzelm@63871
  1711
* Global abbreviations via $ISABELLE_HOME/etc/abbrevs and
wenzelm@63871
  1712
$ISABELLE_HOME_USER/etc/abbrevs are no longer supported. Minor
wenzelm@63871
  1713
INCOMPATIBILITY, use 'abbrevs' within theory header instead.
wenzelm@63579
  1714
wenzelm@64390
  1715
* Action "isabelle.keymap-merge" asks the user to resolve pending
wenzelm@64390
  1716
Isabelle keymap changes that are in conflict with the current jEdit
wenzelm@64390
  1717
keymap; non-conflicting changes are always applied implicitly. This
wenzelm@64390
  1718
action is automatically invoked on Isabelle/jEdit startup and thus
wenzelm@64390
  1719
increases chances that users see new keyboard shortcuts when re-using
wenzelm@64390
  1720
old keymaps.
wenzelm@64390
  1721
wenzelm@63675
  1722
* ML and document antiquotations for file-systems paths are more uniform
wenzelm@63675
  1723
and diverse:
wenzelm@63675
  1724
wenzelm@63675
  1725
  @{path NAME}   -- no file-system check
wenzelm@63675
  1726
  @{file NAME}   -- check for plain file
wenzelm@63675
  1727
  @{dir NAME}    -- check for directory
wenzelm@63675
  1728
wenzelm@63675
  1729
Minor INCOMPATIBILITY, former uses of @{file} and @{file_unchecked} may
wenzelm@63675
  1730
have to be changed.
wenzelm@63669
  1731
wenzelm@63669
  1732
wenzelm@63977
  1733
*** Document preparation ***
wenzelm@63977
  1734
wenzelm@63977
  1735
* New symbol \<circle>, e.g. for temporal operator.
wenzelm@63977
  1736
wenzelm@64073
  1737
* New document and ML antiquotation @{locale} for locales, similar to
wenzelm@64073
  1738
existing antiquotation @{class}.
wenzelm@64073
  1739
wenzelm@63977
  1740
* Mixfix annotations support delimiters like \<^control>\<open>cartouche\<close> --
wenzelm@63977
  1741
this allows special forms of document output.
wenzelm@63977
  1742
wenzelm@63977
  1743
* Raw LaTeX output now works via \<^latex>\<open>...\<close> instead of raw control
wenzelm@63977
  1744
symbol \<^raw:...>. INCOMPATIBILITY, notably for LaTeXsugar.thy and its
wenzelm@63977
  1745
derivatives.
wenzelm@63977
  1746
wenzelm@63977
  1747
* \<^raw:...> symbols are no longer supported.
wenzelm@63977
  1748
wenzelm@63977
  1749
* Old 'header' command is no longer supported (legacy since
wenzelm@63977
  1750
Isabelle2015).
wenzelm@63977
  1751
wenzelm@63977
  1752
wenzelm@62312
  1753
*** Isar ***
wenzelm@62312
  1754
wenzelm@63180
  1755
* Many specification elements support structured statements with 'if' /
wenzelm@63180
  1756
'for' eigen-context, e.g. 'axiomatization', 'abbreviation',
wenzelm@63180
  1757
'definition', 'inductive', 'function'.
wenzelm@63180
  1758
wenzelm@63094
  1759
* Toplevel theorem statements support eigen-context notation with 'if' /
wenzelm@63284
  1760
'for' (in postfix), which corresponds to 'assumes' / 'fixes' in the
wenzelm@63094
  1761
traditional long statement form (in prefix). Local premises are called
wenzelm@63094
  1762
"that" or "assms", respectively. Empty premises are *not* bound in the
wenzelm@63094
  1763
context: INCOMPATIBILITY.
wenzelm@63094
  1764
wenzelm@63039
  1765
* Command 'define' introduces a local (non-polymorphic) definition, with
wenzelm@63039
  1766
optional abstraction over local parameters. The syntax resembles
wenzelm@63043
  1767
'definition' and 'obtain'. It fits better into the Isar language than
wenzelm@63043
  1768
old 'def', which is now a legacy feature.
wenzelm@63039
  1769
wenzelm@63059
  1770
* Command 'obtain' supports structured statements with 'if' / 'for'
wenzelm@63059
  1771
context.
wenzelm@63059
  1772
wenzelm@62312
  1773
* Command '\<proof>' is an alias for 'sorry', with different
wenzelm@62312
  1774
typesetting. E.g. to produce proof holes in examples and documentation.
wenzelm@62216
  1775
wenzelm@63977
  1776
* The defining position of a literal fact \<open>prop\<close> is maintained more
wenzelm@63977
  1777
carefully, and made accessible as hyperlink in the Prover IDE.
wenzelm@63977
  1778
wenzelm@63977
  1779
* Commands 'finally' and 'ultimately' used to expose the result as
wenzelm@63977
  1780
literal fact: this accidental behaviour has been discontinued. Rare
wenzelm@63977
  1781
INCOMPATIBILITY, use more explicit means to refer to facts in Isar.
wenzelm@63977
  1782
wenzelm@63977
  1783
* Command 'axiomatization' has become more restrictive to correspond
wenzelm@63977
  1784
better to internal axioms as singleton facts with mandatory name. Minor
wenzelm@63977
  1785
INCOMPATIBILITY.
wenzelm@62939
  1786
wenzelm@63259
  1787
* Proof methods may refer to the main facts via the dynamic fact
wenzelm@63259
  1788
"method_facts". This is particularly useful for Eisbach method
wenzelm@63259
  1789
definitions.
wenzelm@63259
  1790
wenzelm@63527
  1791
* Proof method "use" allows to modify the main facts of a given method
wenzelm@63527
  1792
expression, e.g.
wenzelm@63259
  1793
wenzelm@63259
  1794
  (use facts in simp)
wenzelm@63259
  1795
  (use facts in \<open>simp add: ...\<close>)
wenzelm@63259
  1796
wenzelm@63977
  1797
* The old proof method "default" has been removed (legacy since
wenzelm@63977
  1798
Isabelle2016). INCOMPATIBILITY, use "standard" instead.
wenzelm@63977
  1799
wenzelm@62216
  1800
haftmann@63165
  1801
*** Pure ***
haftmann@63165
  1802
wenzelm@63977
  1803
* Pure provides basic versions of proof methods "simp" and "simp_all"
wenzelm@63977
  1804
that only know about meta-equality (==). Potential INCOMPATIBILITY in
wenzelm@63977
  1805
theory imports that merge Pure with e.g. Main of Isabelle/HOL: the order
wenzelm@63977
  1806
is relevant to avoid confusion of Pure.simp vs. HOL.simp.
wenzelm@63977
  1807
wenzelm@63977
  1808
* The command 'unfolding' and proof method "unfold" include a second
wenzelm@63977
  1809
stage where given equations are passed through the attribute "abs_def"
wenzelm@63977
  1810
before rewriting. This ensures that definitions are fully expanded,
wenzelm@63977
  1811
regardless of the actual parameters that are provided. Rare
wenzelm@63977
  1812
INCOMPATIBILITY in some corner cases: use proof method (simp only:)
wenzelm@63977
  1813
instead, or declare [[unfold_abs_def = false]] in the proof context.
wenzelm@63977
  1814
wenzelm@63977
  1815
* Type-inference improves sorts of newly introduced type variables for
wenzelm@63977
  1816
the object-logic, using its base sort (i.e. HOL.type for Isabelle/HOL).
wenzelm@63977
  1817
Thus terms like "f x" or "\<And>x. P x" without any further syntactic context
wenzelm@63977
  1818
produce x::'a::type in HOL instead of x::'a::{} in Pure. Rare
wenzelm@63977
  1819
INCOMPATIBILITY, need to provide explicit type constraints for Pure
wenzelm@63977
  1820
types where this is really intended.
haftmann@63350
  1821
haftmann@63165
  1822
blanchet@62327
  1823
*** HOL ***
blanchet@62327
  1824
wenzelm@63977
  1825
* New proof method "argo" using the built-in Argo solver based on SMT
wenzelm@63977
  1826
technology. The method can be used to prove goals of quantifier-free
wenzelm@63977
  1827
propositional logic, goals based on a combination of quantifier-free
wenzelm@63977
  1828
propositional logic with equality, and goals based on a combination of
wenzelm@63977
  1829
quantifier-free propositional logic with linear real arithmetic
wenzelm@63977
  1830
including min/max/abs. See HOL/ex/Argo_Examples.thy for examples.
wenzelm@63977
  1831
blanchet@66614
  1832
* The new "nunchaku" command integrates the Nunchaku model finder. The
wenzelm@64390
  1833
tool is experimental. See ~~/src/HOL/Nunchaku/Nunchaku.thy for details.
wenzelm@64390
  1834
wenzelm@63977
  1835
* Metis: The problem encoding has changed very slightly. This might
blanchet@63785
  1836
break existing proofs. INCOMPATIBILITY.
blanchet@63785
  1837
blanchet@63116
  1838
* Sledgehammer:
lp15@63967
  1839
  - The MaSh relevance filter is now faster than before.
blanchet@63116
  1840
  - Produce syntactically correct Vampire 4.0 problem files.
blanchet@63116
  1841
blanchet@62327
  1842
* (Co)datatype package:
blanchet@62693
  1843
  - New commands for defining corecursive functions and reasoning about
blanchet@62693
  1844
    them in "~~/src/HOL/Library/BNF_Corec.thy": 'corec', 'corecursive',
blanchet@62693
  1845
    'friend_of_corec', and 'corecursion_upto'; and 'corec_unique' proof
blanchet@62842
  1846
    method. See 'isabelle doc corec'.
wenzelm@63977
  1847
  - The predicator :: ('a \<Rightarrow> bool) \<Rightarrow> 'a F \<Rightarrow> bool is now a first-class
blanchet@63855
  1848
    citizen in bounded natural functors.
blanchet@62693
  1849
  - 'primrec' now allows nested calls through the predicator in addition
blanchet@62327
  1850
    to the map function.
blanchet@63855
  1851
  - 'bnf' automatically discharges reflexive proof obligations.
blanchet@62693
  1852
  - 'bnf' outputs a slightly modified proof obligation expressing rel in
traytel@62332
  1853
       terms of map and set
blanchet@63855
  1854
       (not giving a specification for rel makes this one reflexive).
blanchet@62693
  1855
  - 'bnf' outputs a new proof obligation expressing pred in terms of set
blanchet@63855
  1856
       (not giving a specification for pred makes this one reflexive).
blanchet@63855
  1857
    INCOMPATIBILITY: manual 'bnf' declarations may need adjustment.
blanchet@62335
  1858
  - Renamed lemmas:
blanchet@62335
  1859
      rel_prod_apply ~> rel_prod_inject
blanchet@62335
  1860
      pred_prod_apply ~> pred_prod_inject
blanchet@62335
  1861
    INCOMPATIBILITY.
blanchet@62536
  1862
  - The "size" plugin has been made compatible again with locales.
blanchet@63855
  1863
  - The theorems about "rel" and "set" may have a slightly different (but
blanchet@63855
  1864
    equivalent) form.
blanchet@63855
  1865
    INCOMPATIBILITY.
blanchet@62327
  1866
wenzelm@63977
  1867
* The 'coinductive' command produces a proper coinduction rule for
wenzelm@63977
  1868
mutual coinductive predicates. This new rule replaces the old rule,
wenzelm@63977
  1869
which exposed details of the internal fixpoint construction and was
wenzelm@63977
  1870
hard to use. INCOMPATIBILITY.
wenzelm@63977
  1871
wenzelm@63977
  1872
* New abbreviations for negated existence (but not bounded existence):
wenzelm@63977
  1873
wenzelm@63977
  1874
  \<nexists>x. P x \<equiv> \<not> (\<exists>x. P x)
wenzelm@63977
  1875
  \<nexists>!x. P x \<equiv> \<not> (\<exists>!x. P x)
wenzelm@63977
  1876
wenzelm@63977
  1877
* The print mode "HOL" for ASCII syntax of binders "!", "?", "?!", "@"
wenzelm@63977
  1878
has been removed for output. It is retained for input only, until it is
wenzelm@63977
  1879
eliminated altogether.
wenzelm@63977
  1880
wenzelm@63977
  1881
* The unique existence quantifier no longer provides 'binder' syntax,
wenzelm@63977
  1882
but uses syntax translations (as for bounded unique existence). Thus
wenzelm@63977
  1883
iterated quantification \<exists>!x y. P x y with its slightly confusing
wenzelm@63977
  1884
sequential meaning \<exists>!x. \<exists>!y. P x y is no longer possible. Instead,
wenzelm@63977
  1885
pattern abstraction admits simultaneous unique existence \<exists>!(x, y). P x y
wenzelm@63977
  1886
(analogous to existing notation \<exists>!(x, y)\<in>A. P x y). Potential
wenzelm@63977
  1887
INCOMPATIBILITY in rare situations.
wenzelm@63977
  1888
wenzelm@63977
  1889
* Conventional syntax "%(). t" for unit abstractions. Slight syntactic
wenzelm@63977
  1890
INCOMPATIBILITY.
wenzelm@63977
  1891
wenzelm@64390
  1892
* Renamed constants and corresponding theorems:
wenzelm@64390
  1893
wenzelm@64390
  1894
    setsum ~> sum
wenzelm@64390
  1895
    setprod ~> prod
wenzelm@64390
  1896
    listsum ~> sum_list
wenzelm@64390
  1897
    listprod ~> prod_list
wenzelm@64390
  1898
wenzelm@64390
  1899
INCOMPATIBILITY.
wenzelm@64390
  1900
wenzelm@64390
  1901
* Sligthly more standardized theorem names:
wenzelm@64390
  1902
    sgn_times ~> sgn_mult
wenzelm@64390
  1903
    sgn_mult' ~> Real_Vector_Spaces.sgn_mult
wenzelm@64390
  1904
    divide_zero_left ~> div_0
wenzelm@64390
  1905
    zero_mod_left ~> mod_0
wenzelm@64390
  1906
    divide_zero ~> div_by_0
wenzelm@64390
  1907
    divide_1 ~> div_by_1
wenzelm@64390
  1908
    nonzero_mult_divide_cancel_left ~> nonzero_mult_div_cancel_left
wenzelm@64390
  1909
    div_mult_self1_is_id ~> nonzero_mult_div_cancel_left
wenzelm@64390
  1910
    nonzero_mult_divide_cancel_right ~> nonzero_mult_div_cancel_right
wenzelm@64390
  1911
    div_mult_self2_is_id ~> nonzero_mult_div_cancel_right
wenzelm@64390
  1912
    is_unit_divide_mult_cancel_left ~> is_unit_div_mult_cancel_left
wenzelm@64390
  1913
    is_unit_divide_mult_cancel_right ~> is_unit_div_mult_cancel_right
wenzelm@64390
  1914
    mod_div_equality ~> div_mult_mod_eq
wenzelm@64390
  1915
    mod_div_equality2 ~> mult_div_mod_eq
wenzelm@64390
  1916
    mod_div_equality3 ~> mod_div_mult_eq
wenzelm@64390
  1917
    mod_div_equality4 ~> mod_mult_div_eq
wenzelm@64390
  1918
    minus_div_eq_mod ~> minus_div_mult_eq_mod
wenzelm@64390
  1919
    minus_div_eq_mod2 ~> minus_mult_div_eq_mod
wenzelm@64390
  1920
    minus_mod_eq_div ~> minus_mod_eq_div_mult
wenzelm@64390
  1921
    minus_mod_eq_div2 ~> minus_mod_eq_mult_div
wenzelm@64390
  1922
    div_mod_equality' ~> minus_mod_eq_div_mult [symmetric]
wenzelm@64390
  1923
    mod_div_equality' ~> minus_div_mult_eq_mod [symmetric]
wenzelm@64390
  1924
    zmod_zdiv_equality ~> mult_div_mod_eq [symmetric]
wenzelm@64390
  1925
    zmod_zdiv_equality' ~> minus_div_mult_eq_mod [symmetric]
wenzelm@64390
  1926
    Divides.mult_div_cancel ~> minus_mod_eq_mult_div [symmetric]
wenzelm@64390
  1927
    mult_div_cancel ~> minus_mod_eq_mult_div [symmetric]
wenzelm@64390
  1928
    zmult_div_cancel ~> minus_mod_eq_mult_div [symmetric]
wenzelm@64390
  1929
    div_1 ~> div_by_Suc_0
wenzelm@64390
  1930
    mod_1 ~> mod_by_Suc_0
wenzelm@64390
  1931
INCOMPATIBILITY.
wenzelm@64390
  1932
wenzelm@64390
  1933
* New type class "idom_abs_sgn" specifies algebraic properties
wenzelm@64390
  1934
of sign and absolute value functions.  Type class "sgn_if" has
wenzelm@64390
  1935
disappeared.  Slight INCOMPATIBILITY.
wenzelm@64390
  1936
wenzelm@64390
  1937
* Dedicated syntax LENGTH('a) for length of types.
wenzelm@64390
  1938
wenzelm@63977
  1939
* Characters (type char) are modelled as finite algebraic type
wenzelm@63977
  1940
corresponding to {0..255}.
wenzelm@63977
  1941
wenzelm@63977
  1942
  - Logical representation:
wenzelm@63977
  1943
    * 0 is instantiated to the ASCII zero character.
wenzelm@63977
  1944
    * All other characters are represented as "Char n"
wenzelm@63977
  1945
      with n being a raw numeral expression less than 256.
wenzelm@63977
  1946
    * Expressions of the form "Char n" with n greater than 255
wenzelm@63977
  1947
      are non-canonical.
wenzelm@63977
  1948
  - Printing and parsing:
wenzelm@63977
  1949
    * Printable characters are printed and parsed as "CHR ''\<dots>''"
wenzelm@63977
  1950
      (as before).
wenzelm@63977
  1951
    * The ASCII zero character is printed and parsed as "0".
wenzelm@63977
  1952
    * All other canonical characters are printed as "CHR 0xXX"
wenzelm@63977
  1953
      with XX being the hexadecimal character code.  "CHR n"
wenzelm@63977
  1954
      is parsable for every numeral expression n.
wenzelm@63977
  1955
    * Non-canonical characters have no special syntax and are
wenzelm@63977
  1956
      printed as their logical representation.
wenzelm@63977
  1957
  - Explicit conversions from and to the natural numbers are
wenzelm@63977
  1958
    provided as char_of_nat, nat_of_char (as before).
wenzelm@63977
  1959
  - The auxiliary nibble type has been discontinued.
wenzelm@63977
  1960
wenzelm@63977
  1961
INCOMPATIBILITY.
wenzelm@63977
  1962
wenzelm@63977
  1963
* Type class "div" with operation "mod" renamed to type class "modulo"
wenzelm@63977
  1964
with operation "modulo", analogously to type class "divide". This
wenzelm@63977
  1965
eliminates the need to qualify any of those names in the presence of
wenzelm@63977
  1966
infix "mod" syntax. INCOMPATIBILITY.
wenzelm@63977
  1967
wenzelm@63979
  1968
* Statements and proofs of Knaster-Tarski fixpoint combinators lfp/gfp
wenzelm@63979
  1969
have been clarified. The fixpoint properties are lfp_fixpoint, its
wenzelm@63979
  1970
symmetric lfp_unfold (as before), and the duals for gfp. Auxiliary items
wenzelm@63979
  1971
for the proof (lfp_lemma2 etc.) are no longer exported, but can be
wenzelm@63979
  1972
easily recovered by composition with eq_refl. Minor INCOMPATIBILITY.
wenzelm@63979
  1973
wenzelm@63977
  1974
* Constant "surj" is a mere input abbreviation, to avoid hiding an
wenzelm@63977
  1975
equation in term output. Minor INCOMPATIBILITY.
wenzelm@63977
  1976
wenzelm@63977
  1977
* Command 'code_reflect' accepts empty constructor lists for datatypes,
wenzelm@63977
  1978
which renders those abstract effectively.
wenzelm@63977
  1979
wenzelm@63977
  1980
* Command 'export_code' checks given constants for abstraction
wenzelm@63977
  1981
violations: a small guarantee that given constants specify a safe
wenzelm@63977
  1982
interface for the generated code.
wenzelm@63977
  1983
wenzelm@63977
  1984
* Code generation for Scala: ambiguous implicts in class diagrams are
wenzelm@63977
  1985
spelt out explicitly.
wenzelm@63977
  1986
wenzelm@63977
  1987
* Static evaluators (Code_Evaluation.static_* in Isabelle/ML) rely on
wenzelm@63977
  1988
explicitly provided auxiliary definitions for required type class
wenzelm@64390
  1989
dictionaries rather than half-working magic. INCOMPATIBILITY, see the
wenzelm@64390
  1990
tutorial on code generation for details.
wenzelm@64390
  1991
wenzelm@64390
  1992
* Theory Set_Interval: substantial new theorems on indexed sums and
wenzelm@64390
  1993
products.
wenzelm@63977
  1994
wenzelm@63977
  1995
* Locale bijection establishes convenient default simp rules such as
wenzelm@63977
  1996
"inv f (f a) = a" for total bijections.
wenzelm@63977
  1997
wenzelm@63977
  1998
* Abstract locales semigroup, abel_semigroup, semilattice,
wenzelm@63977
  1999
semilattice_neutr, ordering, ordering_top, semilattice_order,
wenzelm@63977
  2000
semilattice_neutr_order, comm_monoid_set, semilattice_set,
wenzelm@63977
  2001
semilattice_neutr_set, semilattice_order_set,
wenzelm@63977
  2002
semilattice_order_neutr_set monoid_list, comm_monoid_list,
wenzelm@63977
  2003
comm_monoid_list_set, comm_monoid_mset, comm_monoid_fun use boldified
wenzelm@63977
  2004
syntax uniformly that does not clash with corresponding global syntax.
wenzelm@63977
  2005
INCOMPATIBILITY.
wenzelm@63977
  2006
wenzelm@63977
  2007
* Former locale lifting_syntax is now a bundle, which is easier to
wenzelm@63977
  2008
include in a local context or theorem statement, e.g. "context includes
wenzelm@63977
  2009
lifting_syntax begin ... end". Minor INCOMPATIBILITY.
wenzelm@63977
  2010
wenzelm@63807
  2011
* Some old / obsolete theorems have been renamed / removed, potential
wenzelm@63807
  2012
INCOMPATIBILITY.
wenzelm@63807
  2013
wenzelm@63807
  2014
  nat_less_cases  --  removed, use linorder_cases instead
wenzelm@63807
  2015
  inv_image_comp  --  removed, use image_inv_f_f instead
wenzelm@63807
  2016
  image_surj_f_inv_f  ~>  image_f_inv_f
wenzelm@63113
  2017
Mathias@63456
  2018
* Some theorems about groups and orders have been generalised from
Mathias@63456
  2019
  groups to semi-groups that are also monoids:
Mathias@63456
  2020
    le_add_same_cancel1
Mathias@63456
  2021
    le_add_same_cancel2
Mathias@63456
  2022
    less_add_same_cancel1
Mathias@63456
  2023
    less_add_same_cancel2
Mathias@63456
  2024
    add_le_same_cancel1
Mathias@63456
  2025
    add_le_same_cancel2
Mathias@63456
  2026
    add_less_same_cancel1
Mathias@63456
  2027
    add_less_same_cancel2
Mathias@63456
  2028
Mathias@63456
  2029
* Some simplifications theorems about rings have been removed, since
Mathias@63456
  2030
  superseeded by a more general version:
Mathias@63456
  2031
    less_add_cancel_left_greater_zero ~> less_add_same_cancel1
Mathias@63456
  2032
    less_add_cancel_right_greater_zero ~> less_add_same_cancel2
Mathias@63456
  2033
    less_eq_add_cancel_left_greater_eq_zero ~> le_add_same_cancel1
Mathias@63456
  2034
    less_eq_add_cancel_right_greater_eq_zero ~> le_add_same_cancel2
Mathias@63456
  2035
    less_eq_add_cancel_left_less_eq_zero ~> add_le_same_cancel1
Mathias@63456
  2036
    less_eq_add_cancel_right_less_eq_zero ~> add_le_same_cancel2
Mathias@63456
  2037
    less_add_cancel_left_less_zero ~> add_less_same_cancel1
Mathias@63456
  2038
    less_add_cancel_right_less_zero ~> add_less_same_cancel2
Mathias@63456
  2039
INCOMPATIBILITY.
Mathias@63456
  2040
wenzelm@62407
  2041
* Renamed split_if -> if_split and split_if_asm -> if_split_asm to
wenzelm@62407
  2042
resemble the f.split naming convention, INCOMPATIBILITY.
nipkow@62396
  2043
wenzelm@63977
  2044
* Added class topological_monoid.
wenzelm@63977
  2045
wenzelm@64391
  2046
* The following theorems have been renamed:
wenzelm@64391
  2047
nipkow@64457
  2048
  setsum_left_distrib ~> sum_distrib_right
nipkow@64457
  2049
  setsum_right_distrib ~> sum_distrib_left
wenzelm@64391
  2050
wenzelm@64391
  2051
INCOMPATIBILITY.
wenzelm@64391
  2052
wenzelm@64391
  2053
* Compound constants INFIMUM and SUPREMUM are mere abbreviations now.
wenzelm@64391
  2054
INCOMPATIBILITY.
wenzelm@64391
  2055
wenzelm@64391
  2056
* "Gcd (f ` A)" and "Lcm (f ` A)" are printed with optional
wenzelm@64391
  2057
comprehension-like syntax analogously to "Inf (f ` A)" and "Sup (f `
wenzelm@64391
  2058
A)".
wenzelm@64391
  2059
wenzelm@64391
  2060
* Class semiring_Lcd merged into semiring_Gcd. INCOMPATIBILITY.
wenzelm@64391
  2061
wenzelm@64391
  2062
* The type class ordered_comm_monoid_add is now called
wenzelm@64391
  2063
ordered_cancel_comm_monoid_add. A new type class ordered_comm_monoid_add
wenzelm@64391
  2064
is introduced as the combination of ordered_ab_semigroup_add +
wenzelm@64391
  2065
comm_monoid_add. INCOMPATIBILITY.
wenzelm@64391
  2066
wenzelm@64391
  2067
* Introduced the type classes canonically_ordered_comm_monoid_add and
wenzelm@64391
  2068
dioid.
wenzelm@64391
  2069
wenzelm@64391
  2070
* Introduced the type class ordered_ab_semigroup_monoid_add_imp_le. When
wenzelm@64391
  2071
instantiating linordered_semiring_strict and ordered_ab_group_add, an
wenzelm@64391
  2072
explicit instantiation of ordered_ab_semigroup_monoid_add_imp_le might
wenzelm@64391
  2073
be required. INCOMPATIBILITY.
nipkow@63117
  2074
haftmann@62348
  2075
* Dropped various legacy fact bindings, whose replacements are often
haftmann@62348
  2076
of a more general type also:
haftmann@62348
  2077
  lcm_left_commute_nat ~> lcm.left_commute
haftmann@62348
  2078
  lcm_left_commute_int ~> lcm.left_commute
haftmann@62348
  2079
  gcd_left_commute_nat ~> gcd.left_commute
haftmann@62348
  2080
  gcd_left_commute_int ~> gcd.left_commute
haftmann@62348
  2081
  gcd_greatest_iff_nat ~> gcd_greatest_iff
haftmann@62348
  2082
  gcd_greatest_iff_int ~> gcd_greatest_iff
haftmann@62348
  2083
  coprime_dvd_mult_nat ~> coprime_dvd_mult
haftmann@62348
  2084
  coprime_dvd_mult_int ~> coprime_dvd_mult
haftmann@62348
  2085
  zpower_numeral_even ~> power_numeral_even
haftmann@62348
  2086
  gcd_mult_cancel_nat ~> gcd_mult_cancel
haftmann@62348
  2087
  gcd_mult_cancel_int ~> gcd_mult_cancel
haftmann@62348
  2088
  div_gcd_coprime_nat ~> div_gcd_coprime
haftmann@62348
  2089
  div_gcd_coprime_int ~> div_gcd_coprime
haftmann@62348
  2090
  zpower_numeral_odd ~> power_numeral_odd
haftmann@62348
  2091
  zero_less_int_conv ~> of_nat_0_less_iff
haftmann@62348
  2092
  gcd_greatest_nat ~> gcd_greatest
haftmann@62348
  2093
  gcd_greatest_int ~> gcd_greatest
haftmann@62348
  2094
  coprime_mult_nat ~> coprime_mult
haftmann@62348
  2095
  coprime_mult_int ~> coprime_mult
haftmann@62348
  2096
  lcm_commute_nat ~> lcm.commute
haftmann@62348
  2097
  lcm_commute_int ~> lcm.commute
haftmann@62348
  2098
  int_less_0_conv ~> of_nat_less_0_iff
haftmann@62348
  2099
  gcd_commute_nat ~> gcd.commute
haftmann@62348
  2100
  gcd_commute_int ~> gcd.commute
haftmann@62348
  2101
  Gcd_insert_nat ~> Gcd_insert
haftmann@62348
  2102
  Gcd_insert_int ~> Gcd_insert
haftmann@62348
  2103
  of_int_int_eq ~> of_int_of_nat_eq
haftmann@62348
  2104
  lcm_least_nat ~> lcm_least
haftmann@62348
  2105
  lcm_least_int ~> lcm_least
haftmann@62348
  2106
  lcm_assoc_nat ~> lcm.assoc
haftmann@62348
  2107
  lcm_assoc_int ~> lcm.assoc
haftmann@62348
  2108
  int_le_0_conv ~> of_nat_le_0_iff
haftmann@62348
  2109
  int_eq_0_conv ~> of_nat_eq_0_iff
haftmann@62348
  2110
  Gcd_empty_nat ~> Gcd_empty
haftmann@62348
  2111
  Gcd_empty_int ~> Gcd_empty
haftmann@62348
  2112
  gcd_assoc_nat ~> gcd.assoc
haftmann@62348
  2113
  gcd_assoc_int ~> gcd.assoc
haftmann@62348
  2114
  zero_zle_int ~> of_nat_0_le_iff
haftmann@62348
  2115
  lcm_dvd2_nat ~> dvd_lcm2
haftmann@62348
  2116
  lcm_dvd2_int ~> dvd_lcm2
haftmann@62348
  2117
  lcm_dvd1_nat ~> dvd_lcm1
haftmann@62348
  2118
  lcm_dvd1_int ~> dvd_lcm1
haftmann@62348
  2119
  gcd_zero_nat ~> gcd_eq_0_iff
haftmann@62348
  2120
  gcd_zero_int ~> gcd_eq_0_iff
haftmann@62348
  2121
  gcd_dvd2_nat ~> gcd_dvd2
haftmann@62348
  2122
  gcd_dvd2_int ~> gcd_dvd2
haftmann@62348
  2123
  gcd_dvd1_nat ~> gcd_dvd1
haftmann@62348
  2124
  gcd_dvd1_int ~> gcd_dvd1
haftmann@62348
  2125
  int_numeral ~> of_nat_numeral
haftmann@62348
  2126
  lcm_ac_nat ~> ac_simps
haftmann@62348
  2127
  lcm_ac_int ~> ac_simps
haftmann@62348
  2128
  gcd_ac_nat ~> ac_simps
haftmann@62348
  2129
  gcd_ac_int ~> ac_simps
haftmann@62348
  2130
  abs_int_eq ~> abs_of_nat
haftmann@62348
  2131
  zless_int ~> of_nat_less_iff
haftmann@62348
  2132
  zdiff_int ~> of_nat_diff
haftmann@62348
  2133
  zadd_int ~> of_nat_add
haftmann@62348
  2134
  int_mult ~> of_nat_mult
haftmann@62348
  2135
  int_Suc ~> of_nat_Suc
haftmann@62348
  2136
  inj_int ~> inj_of_nat
haftmann@62348
  2137
  int_1 ~> of_nat_1
haftmann@62348
  2138
  int_0 ~> of_nat_0
haftmann@62353
  2139
  Lcm_empty_nat ~> Lcm_empty
haftmann@62353
  2140
  Lcm_empty_int ~> Lcm_empty
haftmann@62353
  2141
  Lcm_insert_nat ~> Lcm_insert
haftmann@62353
  2142
  Lcm_insert_int ~> Lcm_insert
haftmann@62353
  2143
  comp_fun_idem_gcd_nat ~> comp_fun_idem_gcd
haftmann@62353
  2144
  comp_fun_idem_gcd_int ~> comp_fun_idem_gcd
haftmann@62353
  2145
  comp_fun_idem_lcm_nat ~> comp_fun_idem_lcm
haftmann@62353
  2146
  comp_fun_idem_lcm_int ~> comp_fun_idem_lcm
haftmann@62353
  2147
  Lcm_eq_0 ~> Lcm_eq_0_I
haftmann@62353
  2148
  Lcm0_iff ~> Lcm_0_iff
haftmann@62353
  2149
  Lcm_dvd_int ~> Lcm_least
haftmann@62353
  2150
  divides_mult_nat ~> divides_mult
haftmann@62353
  2151
  divides_mult_int ~> divides_mult
haftmann@62353
  2152
  lcm_0_nat ~> lcm_0_right
haftmann@62353
  2153
  lcm_0_int ~> lcm_0_right
haftmann@62353
  2154
  lcm_0_left_nat ~> lcm_0_left
haftmann@62353
  2155
  lcm_0_left_int ~> lcm_0_left
haftmann@62353
  2156
  dvd_gcd_D1_nat ~> dvd_gcdD1
haftmann@62353
  2157
  dvd_gcd_D1_int ~> dvd_gcdD1
haftmann@62353
  2158
  dvd_gcd_D2_nat ~> dvd_gcdD2
haftmann@62353
  2159
  dvd_gcd_D2_int ~> dvd_gcdD2
haftmann@62353
  2160
  coprime_dvd_mult_iff_nat ~> coprime_dvd_mult_iff
haftmann@62353
  2161
  coprime_dvd_mult_iff_int ~> coprime_dvd_mult_iff
haftmann@62348
  2162
  realpow_minus_mult ~> power_minus_mult
haftmann@62348
  2163
  realpow_Suc_le_self ~> power_Suc_le_self
haftmann@62353
  2164
  dvd_Gcd, dvd_Gcd_nat, dvd_Gcd_int removed in favour of Gcd_greatest
haftmann@62347
  2165
INCOMPATIBILITY.
haftmann@62347
  2166
lp15@63967
  2167
* Renamed HOL/Quotient_Examples/FSet.thy to
wenzelm@63977
  2168
HOL/Quotient_Examples/Quotient_FSet.thy INCOMPATIBILITY.
wenzelm@63977
  2169
wenzelm@64390
  2170
* Session HOL-Library: theory FinFun bundles "finfun_syntax" and
wenzelm@64390
  2171
"no_finfun_syntax" allow to control optional syntax in local contexts;
wenzelm@64390
  2172
this supersedes former theory FinFun_Syntax. INCOMPATIBILITY, e.g. use
wenzelm@64390
  2173
"unbundle finfun_syntax" to imitate import of
wenzelm@64390
  2174
"~~/src/HOL/Library/FinFun_Syntax".
wenzelm@64390
  2175
wenzelm@64390
  2176
* Session HOL-Library: theory Multiset_Permutations (executably) defines
wenzelm@64390
  2177
the set of permutations of a given set or multiset, i.e. the set of all
wenzelm@64390
  2178
lists that contain every element of the carrier (multi-)set exactly
wenzelm@64390
  2179
once.
wenzelm@64390
  2180
wenzelm@64390
  2181
* Session HOL-Library: multiset membership is now expressed using
wenzelm@64390
  2182
set_mset rather than count.
wenzelm@64390
  2183
wenzelm@64390
  2184
  - Expressions "count M a > 0" and similar simplify to membership
wenzelm@64390
  2185
    by default.
wenzelm@64390
  2186
wenzelm@64390
  2187
  - Converting between "count M a = 0" and non-membership happens using
wenzelm@64390
  2188
    equations count_eq_zero_iff and not_in_iff.
wenzelm@64390
  2189
wenzelm@64390
  2190
  - Rules count_inI and in_countE obtain facts of the form
wenzelm@64390
  2191
    "count M a = n" from membership.
wenzelm@64390
  2192
wenzelm@64390
  2193
  - Rules count_in_diffI and in_diff_countE obtain facts of the form
wenzelm@64390
  2194
    "count M a = n + count N a" from membership on difference sets.
wenzelm@64390
  2195
wenzelm@64390
  2196
INCOMPATIBILITY.
wenzelm@64390
  2197
wenzelm@64390
  2198
* Session HOL-Library: theory LaTeXsugar uses new-style "dummy_pats" for
wenzelm@64390
  2199
displaying equations in functional programming style --- variables
wenzelm@64390
  2200
present on the left-hand but not on the righ-hand side are replaced by
wenzelm@64390
  2201
underscores.
wenzelm@64390
  2202
wenzelm@64390
  2203
* Session HOL-Library: theory Combinator_PER provides combinator to
wenzelm@64390
  2204
build partial equivalence relations from a predicate and an equivalence
wenzelm@64390
  2205
relation.
wenzelm@64390
  2206
wenzelm@64390
  2207
* Session HOL-Library: theory Perm provides basic facts about almost
wenzelm@64390
  2208
everywhere fix bijections.
wenzelm@64390
  2209
wenzelm@64390
  2210
* Session HOL-Library: theory Normalized_Fraction allows viewing an
wenzelm@64390
  2211
element of a field of fractions as a normalized fraction (i.e. a pair of
wenzelm@64390
  2212
numerator and denominator such that the two are coprime and the
wenzelm@64390
  2213
denominator is normalized wrt. unit factors).
wenzelm@64390
  2214
wenzelm@64390
  2215
* Session HOL-NSA has been renamed to HOL-Nonstandard_Analysis.
wenzelm@64390
  2216
wenzelm@64390
  2217
* Session HOL-Multivariate_Analysis has been renamed to HOL-Analysis.
wenzelm@64390
  2218
wenzelm@64390
  2219
* Session HOL-Analysis: measure theory has been moved here from
wenzelm@64390
  2220
HOL-Probability. When importing HOL-Analysis some theorems need
wenzelm@64390
  2221
additional name spaces prefixes due to name clashes. INCOMPATIBILITY.
wenzelm@64390
  2222
wenzelm@64390
  2223
* Session HOL-Analysis: more complex analysis including Cauchy's
wenzelm@64390
  2224
inequality, Liouville theorem, open mapping theorem, maximum modulus
wenzelm@64390
  2225
principle, Residue theorem, Schwarz Lemma.
wenzelm@64390
  2226
wenzelm@64390
  2227
* Session HOL-Analysis: Theory of polyhedra: faces, extreme points,
wenzelm@64390
  2228
polytopes, and the Krein–Milman Minkowski theorem.
wenzelm@64390
  2229
wenzelm@64390
  2230
* Session HOL-Analysis: Numerous results ported from the HOL Light
wenzelm@64390
  2231
libraries: homeomorphisms, continuous function extensions, invariance of
wenzelm@64390
  2232
domain.
wenzelm@64390
  2233
wenzelm@64390
  2234
* Session HOL-Probability: the type of emeasure and nn_integral was
wenzelm@64390
  2235
changed from ereal to ennreal, INCOMPATIBILITY.
wenzelm@64390
  2236
wenzelm@64390
  2237
  emeasure :: 'a measure \<Rightarrow> 'a set \<Rightarrow> ennreal
wenzelm@64390
  2238
  nn_integral :: 'a measure \<Rightarrow> ('a \<Rightarrow> ennreal) \<Rightarrow> ennreal
wenzelm@64390
  2239
wenzelm@64390
  2240
* Session HOL-Probability: Code generation and QuickCheck for
wenzelm@64390
  2241
Probability Mass Functions.
wenzelm@64390
  2242
wenzelm@64390
  2243
* Session HOL-Probability: theory Random_Permutations contains some
wenzelm@64390
  2244
theory about choosing a permutation of a set uniformly at random and
wenzelm@64390
  2245
folding over a list in random order.
wenzelm@64390
  2246
wenzelm@64390
  2247
* Session HOL-Probability: theory SPMF formalises discrete
wenzelm@64390
  2248
subprobability distributions.
wenzelm@64390
  2249
wenzelm@64390
  2250
* Session HOL-Library: the names of multiset theorems have been
wenzelm@64390
  2251
normalised to distinguish which ordering the theorems are about
wenzelm@64390
  2252
wenzelm@64390
  2253
    mset_less_eqI ~> mset_subset_eqI
wenzelm@64390
  2254
    mset_less_insertD ~> mset_subset_insertD
wenzelm@64390
  2255
    mset_less_eq_count ~> mset_subset_eq_count
wenzelm@64390
  2256
    mset_less_diff_self ~> mset_subset_diff_self
wenzelm@64390
  2257
    mset_le_exists_conv ~> mset_subset_eq_exists_conv
wenzelm@64390
  2258
    mset_le_mono_add_right_cancel ~> mset_subset_eq_mono_add_right_cancel
wenzelm@64390
  2259
    mset_le_mono_add_left_cancel ~> mset_subset_eq_mono_add_left_cancel
wenzelm@64390
  2260
    mset_le_mono_add ~> mset_subset_eq_mono_add
wenzelm@64390
  2261
    mset_le_add_left ~> mset_subset_eq_add_left
wenzelm@64390
  2262
    mset_le_add_right ~> mset_subset_eq_add_right
wenzelm@64390
  2263
    mset_le_single ~> mset_subset_eq_single
wenzelm@64390
  2264
    mset_le_multiset_union_diff_commute ~> mset_subset_eq_multiset_union_diff_commute
wenzelm@64390
  2265
    diff_le_self ~> diff_subset_eq_self
wenzelm@64390
  2266
    mset_leD ~> mset_subset_eqD
wenzelm@64390
  2267
    mset_lessD ~> mset_subsetD
wenzelm@64390
  2268
    mset_le_insertD ~> mset_subset_eq_insertD
wenzelm@64390
  2269
    mset_less_of_empty ~> mset_subset_of_empty
wenzelm@64390
  2270
    mset_less_size ~> mset_subset_size
wenzelm@64390
  2271
    wf_less_mset_rel ~> wf_subset_mset_rel
wenzelm@64390
  2272
    count_le_replicate_mset_le ~> count_le_replicate_mset_subset_eq
wenzelm@64390
  2273
    mset_remdups_le ~> mset_remdups_subset_eq
wenzelm@64390
  2274
    ms_lesseq_impl ~> subset_eq_mset_impl
wenzelm@64390
  2275
wenzelm@64390
  2276
Some functions have been renamed:
wenzelm@64390
  2277
    ms_lesseq_impl -> subset_eq_mset_impl
wenzelm@64390
  2278
wenzelm@64390
  2279
* HOL-Library: multisets are now ordered with the multiset ordering
wenzelm@64390
  2280
    #\<subseteq># ~> \<le>
wenzelm@64390
  2281
    #\<subset># ~> <
wenzelm@64390
  2282
    le_multiset ~> less_eq_multiset
wenzelm@64390
  2283
    less_multiset ~> le_multiset
wenzelm@64390
  2284
INCOMPATIBILITY.
wenzelm@64390
  2285
wenzelm@64390
  2286
* Session HOL-Library: the prefix multiset_order has been discontinued:
wenzelm@64390
  2287
the theorems can be directly accessed. As a consequence, the lemmas
wenzelm@64390
  2288
"order_multiset" and "linorder_multiset" have been discontinued, and the
wenzelm@64390
  2289
interpretations "multiset_linorder" and "multiset_wellorder" have been
wenzelm@64390
  2290
replaced by instantiations. INCOMPATIBILITY.
wenzelm@64390
  2291
wenzelm@64390
  2292
* Session HOL-Library: some theorems about the multiset ordering have
wenzelm@64390
  2293
been renamed:
wenzelm@64390
  2294
wenzelm@64390
  2295
    le_multiset_def ~> less_eq_multiset_def
wenzelm@64390
  2296
    less_multiset_def ~> le_multiset_def
wenzelm@64390
  2297
    less_eq_imp_le_multiset ~> subset_eq_imp_le_multiset
wenzelm@64390
  2298
    mult_less_not_refl ~> mset_le_not_refl
wenzelm@64390
  2299
    mult_less_trans ~> mset_le_trans
wenzelm@64390
  2300
    mult_less_not_sym ~> mset_le_not_sym
wenzelm@64390
  2301
    mult_less_asym ~> mset_le_asym
wenzelm@64390
  2302
    mult_less_irrefl ~> mset_le_irrefl
wenzelm@64390
  2303
    union_less_mono2{,1,2} ~> union_le_mono2{,1,2}
wenzelm@64390
  2304
wenzelm@64390
  2305
    le_multiset\<^sub>H\<^sub>O ~> less_eq_multiset\<^sub>H\<^sub>O
wenzelm@64390
  2306
    le_multiset_total ~> less_eq_multiset_total
wenzelm@64390
  2307
    less_multiset_right_total ~> subset_eq_imp_le_multiset
wenzelm@64390
  2308
    le_multiset_empty_left ~> less_eq_multiset_empty_left
wenzelm@64390
  2309
    le_multiset_empty_right ~> less_eq_multiset_empty_right
wenzelm@64390
  2310
    less_multiset_empty_right ~> le_multiset_empty_left
wenzelm@64390
  2311
    less_multiset_empty_left ~> le_multiset_empty_right
wenzelm@64390
  2312
    union_less_diff_plus ~> union_le_diff_plus
wenzelm@64390
  2313
    ex_gt_count_imp_less_multiset ~> ex_gt_count_imp_le_multiset
wenzelm@64390
  2314
    less_multiset_plus_left_nonempty ~> le_multiset_plus_left_nonempty
wenzelm@64390
  2315
    le_multiset_plus_right_nonempty ~> le_multiset_plus_right_nonempty
wenzelm@64390
  2316
INCOMPATIBILITY.
wenzelm@64390
  2317
wenzelm@64390
  2318
* Session HOL-Library: the lemma mset_map has now the attribute [simp].
wenzelm@64390
  2319
INCOMPATIBILITY.
wenzelm@64390
  2320
wenzelm@64390
  2321
* Session HOL-Library: some theorems about multisets have been removed.
wenzelm@64390
  2322
INCOMPATIBILITY, use the following replacements:
wenzelm@64390
  2323
wenzelm@64390
  2324
    le_multiset_plus_plus_left_iff ~> add_less_cancel_right
wenzelm@64390
  2325
    less_multiset_plus_plus_left_iff ~> add_less_cancel_right
wenzelm@64390
  2326
    le_multiset_plus_plus_right_iff ~> add_less_cancel_left
wenzelm@64390
  2327
    less_multiset_plus_plus_right_iff ~> add_less_cancel_left
wenzelm@64390
  2328
    add_eq_self_empty_iff ~> add_cancel_left_right
wenzelm@64390
  2329
    mset_subset_add_bothsides ~> subset_mset.add_less_cancel_right
wenzelm@64390
  2330
    mset_less_add_bothsides ~> subset_mset.add_less_cancel_right
wenzelm@64390
  2331
    mset_le_add_bothsides ~> subset_mset.add_less_cancel_right
wenzelm@64390
  2332
    empty_inter ~> subset_mset.inf_bot_left
wenzelm@64390
  2333
    inter_empty ~> subset_mset.inf_bot_right
wenzelm@64390
  2334
    empty_sup ~> subset_mset.sup_bot_left
wenzelm@64390
  2335
    sup_empty ~> subset_mset.sup_bot_right
wenzelm@64390
  2336
    bdd_below_multiset ~> subset_mset.bdd_above_bot
wenzelm@64390
  2337
    subset_eq_empty ~> subset_mset.le_zero_eq
wenzelm@64390
  2338
    le_empty ~> subset_mset.le_zero_eq
wenzelm@64390
  2339
    mset_subset_empty_nonempty ~> subset_mset.zero_less_iff_neq_zero
wenzelm@64390
  2340
    mset_less_empty_nonempty ~> subset_mset.zero_less_iff_neq_zero
wenzelm@64390
  2341
wenzelm@64390
  2342
* Session HOL-Library: some typeclass constraints about multisets have
wenzelm@64390
  2343
been reduced from ordered or linordered to preorder. Multisets have the
wenzelm@64390
  2344
additional typeclasses order_bot, no_top,
wenzelm@64390
  2345
ordered_ab_semigroup_add_imp_le, ordered_cancel_comm_monoid_add,
wenzelm@64390
  2346
linordered_cancel_ab_semigroup_add, and
wenzelm@64390
  2347
ordered_ab_semigroup_monoid_add_imp_le. INCOMPATIBILITY.
wenzelm@64390
  2348
wenzelm@64390
  2349
* Session HOL-Library: there are some new simplification rules about
wenzelm@64390
  2350
multisets, the multiset ordering, and the subset ordering on multisets.
wenzelm@64390
  2351
INCOMPATIBILITY.
wenzelm@64390
  2352
wenzelm@64390
  2353
* Session HOL-Library: the subset ordering on multisets has now the
wenzelm@64390
  2354
interpretations ordered_ab_semigroup_monoid_add_imp_le and
wenzelm@64390
  2355
bounded_lattice_bot. INCOMPATIBILITY.
wenzelm@64390
  2356
wenzelm@64390
  2357
* Session HOL-Library, theory Multiset: single has been removed in favor
wenzelm@64390
  2358
of add_mset that roughly corresponds to Set.insert. Some theorems have
wenzelm@64390
  2359
removed or changed:
wenzelm@64390
  2360
wenzelm@64390
  2361
  single_not_empty ~> add_mset_not_empty or empty_not_add_mset
wenzelm@64390
  2362
  fold_mset_insert ~> fold_mset_add_mset
wenzelm@64390
  2363
  image_mset_insert ~> image_mset_add_mset
wenzelm@64390
  2364
  union_single_eq_diff
wenzelm@64390
  2365
  multi_self_add_other_not_self
wenzelm@64390
  2366
  diff_single_eq_union
wenzelm@64390
  2367
INCOMPATIBILITY.
wenzelm@64390
  2368
wenzelm@64390
  2369
* Session HOL-Library, theory Multiset: some theorems have been changed
wenzelm@64390
  2370
to use add_mset instead of single:
wenzelm@64390
  2371
wenzelm@64390
  2372
  mset_add
wenzelm@64390
  2373
  multi_self_add_other_not_self
wenzelm@64390
  2374
  diff_single_eq_union
wenzelm@64390
  2375
  union_single_eq_diff
wenzelm@64390
  2376
  union_single_eq_member
wenzelm@64390
  2377
  add_eq_conv_diff
wenzelm@64390
  2378
  insert_noteq_member
wenzelm@64390
  2379
  add_eq_conv_ex
wenzelm@64390
  2380
  multi_member_split
wenzelm@64390
  2381
  multiset_add_sub_el_shuffle
wenzelm@64390
  2382
  mset_subset_eq_insertD
wenzelm@64390
  2383
  mset_subset_insertD
wenzelm@64390
  2384
  insert_subset_eq_iff
wenzelm@64390
  2385
  insert_union_subset_iff
wenzelm@64390
  2386
  multi_psub_of_add_self
wenzelm@64390
  2387
  inter_add_left1
wenzelm@64390
  2388
  inter_add_left2
wenzelm@64390
  2389
  inter_add_right1
wenzelm@64390
  2390
  inter_add_right2
wenzelm@64390
  2391
  sup_union_left1
wenzelm@64390
  2392
  sup_union_left2
wenzelm@64390
  2393
  sup_union_right1
wenzelm@64390
  2394
  sup_union_right2
wenzelm@64390
  2395
  size_eq_Suc_imp_eq_union
wenzelm@64390
  2396
  multi_nonempty_split
wenzelm@64390
  2397
  mset_insort
wenzelm@64390
  2398
  mset_update
wenzelm@64390
  2399
  mult1I
wenzelm@64390
  2400
  less_add
wenzelm@64390
  2401
  mset_zip_take_Cons_drop_twice
wenzelm@64390
  2402
  rel_mset_Zero
wenzelm@64390
  2403
  msed_map_invL
wenzelm@64390
  2404
  msed_map_invR
wenzelm@64390
  2405
  msed_rel_invL
wenzelm@64390
  2406
  msed_rel_invR
wenzelm@64390
  2407
  le_multiset_right_total
wenzelm@64390
  2408
  multiset_induct
wenzelm@64390
  2409
  multiset_induct2_size
wenzelm@64390
  2410
  multiset_induct2
wenzelm@64390
  2411
INCOMPATIBILITY.
wenzelm@64390
  2412
wenzelm@64390
  2413
* Session HOL-Library, theory Multiset: the definitions of some
wenzelm@64390
  2414
constants have changed to use add_mset instead of adding a single
wenzelm@64390
  2415
element:
wenzelm@64390
  2416
wenzelm@64390
  2417
  image_mset
wenzelm@64390
  2418
  mset
wenzelm@64390
  2419
  replicate_mset
wenzelm@64390
  2420
  mult1
wenzelm@64390
  2421
  pred_mset
wenzelm@64390
  2422
  rel_mset'
wenzelm@64390
  2423
  mset_insort
wenzelm@64390
  2424
wenzelm@64390
  2425
INCOMPATIBILITY.
wenzelm@64390
  2426
wenzelm@64390
  2427
* Session HOL-Library, theory Multiset: due to the above changes, the
wenzelm@64390
  2428
attributes of some multiset theorems have been changed:
wenzelm@64390
  2429
wenzelm@64390
  2430
  insert_DiffM  [] ~> [simp]
wenzelm@64390
  2431
  insert_DiffM2 [simp] ~> []
wenzelm@64390
  2432
  diff_add_mset_swap [simp]
wenzelm@64390
  2433
  fold_mset_add_mset [simp]
wenzelm@64390
  2434
  diff_diff_add [simp] (for multisets only)
wenzelm@64390
  2435
  diff_cancel [simp] ~> []
wenzelm@64390
  2436
  count_single [simp] ~> []
wenzelm@64390
  2437
  set_mset_single [simp] ~> []
wenzelm@64390
  2438
  size_multiset_single [simp] ~> []
wenzelm@64390
  2439
  size_single [simp] ~> []
wenzelm@64390
  2440
  image_mset_single [simp] ~> []
wenzelm@64390
  2441
  mset_subset_eq_mono_add_right_cancel [simp] ~> []
wenzelm@64390
  2442
  mset_subset_eq_mono_add_left_cancel [simp] ~> []
wenzelm@64390
  2443
  fold_mset_single [simp] ~> []
wenzelm@64390
  2444
  subset_eq_empty [simp] ~> []
wenzelm@64390
  2445
  empty_sup [simp] ~> []
wenzelm@64390
  2446
  sup_empty [simp] ~> []
wenzelm@64390
  2447
  inter_empty [simp] ~> []
wenzelm@64390
  2448
  empty_inter [simp] ~> []
wenzelm@64390
  2449
INCOMPATIBILITY.
wenzelm@64390
  2450
wenzelm@64391
  2451
* Session HOL-Library, theory Multiset: the order of the variables in
wenzelm@64390
  2452
the second cases of multiset_induct, multiset_induct2_size,
wenzelm@64390
  2453
multiset_induct2 has been changed (e.g. Add A a ~> Add a A).
wenzelm@64390
  2454
INCOMPATIBILITY.
wenzelm@64390
  2455
wenzelm@64390
  2456
* Session HOL-Library, theory Multiset: there is now a simplification
wenzelm@64390
  2457
procedure on multisets. It mimics the behavior of the procedure on
wenzelm@64390
  2458
natural numbers. INCOMPATIBILITY.
wenzelm@64390
  2459
wenzelm@64390
  2460
* Session HOL-Library, theory Multiset: renamed sums and products of
wenzelm@64390
  2461
multisets:
wenzelm@64390
  2462
wenzelm@64390
  2463
  msetsum ~> sum_mset
wenzelm@64390
  2464
  msetprod ~> prod_mset
wenzelm@64390
  2465
wenzelm@64390
  2466
* Session HOL-Library, theory Multiset: the notation for intersection
wenzelm@64390
  2467
and union of multisets have been changed:
wenzelm@64390
  2468
wenzelm@64390
  2469
  #\<inter> ~> \<inter>#
wenzelm@64390
  2470
  #\<union> ~> \<union>#
wenzelm@64390
  2471
wenzelm@64390
  2472
INCOMPATIBILITY.
wenzelm@64390
  2473
wenzelm@64390
  2474
* Session HOL-Library, theory Multiset: the lemma
wenzelm@64390
  2475
one_step_implies_mult_aux on multisets has been removed, use
wenzelm@64390
  2476
one_step_implies_mult instead. INCOMPATIBILITY.
wenzelm@64390
  2477
wenzelm@64390
  2478
* Session HOL-Library: theory Complete_Partial_Order2 provides reasoning
wenzelm@64390
  2479
support for monotonicity and continuity in chain-complete partial orders
wenzelm@64390
  2480
and about admissibility conditions for fixpoint inductions.
wenzelm@64390
  2481
haftmann@64523
  2482
* Session HOL-Library: theory Library/Polynomial contains also
haftmann@64523
  2483
derivation of polynomials (formerly in Library/Poly_Deriv) but not
haftmann@64523
  2484
gcd/lcm on polynomials over fields. This has been moved to a separate
haftmann@64523
  2485
theory Library/Polynomial_GCD_euclidean.thy, to pave way for a possible
haftmann@64523
  2486
future different type class instantiation for polynomials over factorial
haftmann@64523
  2487
rings. INCOMPATIBILITY.
wenzelm@64390
  2488
wenzelm@64390
  2489
* Session HOL-Library: theory Sublist provides function "prefixes" with
wenzelm@64390
  2490
the following renaming
wenzelm@64390
  2491
wenzelm@64390
  2492
  prefixeq -> prefix
wenzelm@64390
  2493
  prefix -> strict_prefix
wenzelm@64390
  2494
  suffixeq -> suffix
wenzelm@64390
  2495
  suffix -> strict_suffix
wenzelm@64390
  2496
wenzelm@64390
  2497
Added theory of longest common prefixes.
blanchet@64389
  2498
wenzelm@64391
  2499
* Session HOL-Number_Theory: algebraic foundation for primes:
wenzelm@64391
  2500
Generalisation of predicate "prime" and introduction of predicates
wenzelm@64391
  2501
"prime_elem", "irreducible", a "prime_factorization" function, and the
wenzelm@64391
  2502
"factorial_ring" typeclass with instance proofs for nat, int, poly. Some
wenzelm@64391
  2503
theorems now have different names, most notably "prime_def" is now
wenzelm@64391
  2504
"prime_nat_iff". INCOMPATIBILITY.
wenzelm@64391
  2505
wenzelm@64391
  2506
* Session Old_Number_Theory has been removed, after porting remaining
wenzelm@64391
  2507
theories.
wenzelm@64391
  2508
wenzelm@64551
  2509
* Session HOL-Types_To_Sets provides an experimental extension of
wenzelm@64551
  2510
Higher-Order Logic to allow translation of types to sets.
wenzelm@64551
  2511
wenzelm@63198
  2512
wenzelm@62498
  2513
*** ML ***
wenzelm@62498
  2514
wenzelm@63227
  2515
* Integer.gcd and Integer.lcm use efficient operations from the Poly/ML
wenzelm@63228
  2516
library (notably for big integers). Subtle change of semantics:
wenzelm@63228
  2517
Integer.gcd and Integer.lcm both normalize the sign, results are never
wenzelm@63228
  2518
negative. This coincides with the definitions in HOL/GCD.thy.
wenzelm@63228
  2519
INCOMPATIBILITY.
wenzelm@63227
  2520
wenzelm@63212
  2521
* Structure Rat for rational numbers is now an integral part of
wenzelm@63215
  2522
Isabelle/ML, with special notation @int/nat or @int for numerals (an
wenzelm@63215
  2523
abbreviation for antiquotation @{Pure.rat argument}) and ML pretty
wenzelm@63212
  2524
printing. Standard operations on type Rat.rat are provided via ad-hoc
wenzelm@63215
  2525
overloading of + - * / < <= > >= ~ abs. INCOMPATIBILITY, need to
wenzelm@63212
  2526
use + instead of +/ etc. Moreover, exception Rat.DIVZERO has been
wenzelm@63212
  2527
superseded by General.Div.
wenzelm@63198
  2528
wenzelm@64390
  2529
* ML antiquotation @{path} is superseded by @{file}, which ensures that
wenzelm@64390
  2530
the argument is a plain file. Minor INCOMPATIBILITY.
wenzelm@64390
  2531
wenzelm@64390
  2532
* Antiquotation @{make_string} is available during Pure bootstrap --
wenzelm@64390
  2533
with approximative output quality.
wenzelm@64390
  2534
wenzelm@64390
  2535
* Low-level ML system structures (like PolyML and RunCall) are no longer
wenzelm@64390
  2536
exposed to Isabelle/ML user-space. Potential INCOMPATIBILITY.
wenzelm@64390
  2537
wenzelm@62861
  2538
* The ML function "ML" provides easy access to run-time compilation.
wenzelm@62861
  2539
This is particularly useful for conditional compilation, without
wenzelm@62861
  2540
requiring separate files.
wenzelm@62861
  2541
wenzelm@62498
  2542
* Option ML_exception_debugger controls detailed exception trace via the
wenzelm@62498
  2543
Poly/ML debugger. Relevant ML modules need to be compiled beforehand
wenzelm@62498
  2544
with ML_file_debug, or with ML_file and option ML_debugger enabled. Note
wenzelm@62498
  2545
debugger information requires consirable time and space: main
wenzelm@62498
  2546
Isabelle/HOL with full debugger support may need ML_system_64.
wenzelm@62498
  2547
wenzelm@62514
  2548
* Local_Theory.restore has been renamed to Local_Theory.reset to
wenzelm@62514
  2549
emphasize its disruptive impact on the cumulative context, notably the
wenzelm@62514
  2550
scope of 'private' or 'qualified' names. Note that Local_Theory.reset is
wenzelm@62514
  2551
only appropriate when targets are managed, e.g. starting from a global
wenzelm@62514
  2552
theory and returning to it. Regular definitional packages should use
wenzelm@62514
  2553
balanced blocks of Local_Theory.open_target versus
wenzelm@62514
  2554
Local_Theory.close_target instead. Rare INCOMPATIBILITY.
wenzelm@62514
  2555
wenzelm@62519
  2556
* Structure TimeLimit (originally from the SML/NJ library) has been
wenzelm@62519
  2557
replaced by structure Timeout, with slightly different signature.
wenzelm@62519
  2558
INCOMPATIBILITY.
wenzelm@62519
  2559
wenzelm@62551
  2560
* Discontinued cd and pwd operations, which are not well-defined in a
wenzelm@62551
  2561
multi-threaded environment. Note that files are usually located
wenzelm@62551
  2562
relatively to the master directory of a theory (see also
wenzelm@62551
  2563
File.full_path). Potential INCOMPATIBILITY.
wenzelm@62551
  2564
wenzelm@63352
  2565
* Binding.empty_atts supersedes Thm.empty_binding and
wenzelm@63352
  2566
Attrib.empty_binding. Minor INCOMPATIBILITY.
wenzelm@63352
  2567
wenzelm@62498
  2568
wenzelm@62354
  2569
*** System ***
wenzelm@62354
  2570
wenzelm@64390
  2571
* SML/NJ and old versions of Poly/ML are no longer supported.
wenzelm@64390
  2572
wenzelm@64390
  2573
* Poly/ML heaps now follow the hierarchy of sessions, and thus require
wenzelm@64390
  2574
much less disk space.
wenzelm@63226
  2575
wenzelm@62591
  2576
* The Isabelle ML process is now managed directly by Isabelle/Scala, and
wenzelm@62591
  2577
shell scripts merely provide optional command-line access. In
wenzelm@62591
  2578
particular:
wenzelm@62591
  2579
wenzelm@62591
  2580
  . Scala module ML_Process to connect to the raw ML process,
wenzelm@62591
  2581
    with interaction via stdin/stdout/stderr or in batch mode;
wenzelm@62591
  2582
  . command-line tool "isabelle console" as interactive wrapper;
wenzelm@62591
  2583
  . command-line tool "isabelle process" as batch mode wrapper.
wenzelm@62588
  2584
wenzelm@62588
  2585
* The executable "isabelle_process" has been discontinued. Tools and
wenzelm@62588
  2586
prover front-ends should use ML_Process or Isabelle_Process in
wenzelm@62591
  2587
Isabelle/Scala. INCOMPATIBILITY.
wenzelm@62588
  2588
wenzelm@62588
  2589
* New command-line tool "isabelle process" supports ML evaluation of
wenzelm@62588
  2590
literal expressions (option -e) or files (option -f) in the context of a
wenzelm@62588
  2591
given heap image. Errors lead to premature exit of the ML process with
wenzelm@62588
  2592
return code 1.
wenzelm@62588
  2593
wenzelm@64390
  2594
* The command-line tool "isabelle build" supports option -N for cyclic
wenzelm@64390
  2595
shuffling of NUMA CPU nodes. This may help performance tuning on Linux
wenzelm@64390
  2596
servers with separate CPU/memory modules.
wenzelm@64390
  2597
wenzelm@64390
  2598
* System option "threads" (for the size of the Isabelle/ML thread farm)
wenzelm@64390
  2599
is also passed to the underlying ML runtime system as --gcthreads,
wenzelm@64274
  2600
unless there is already a default provided via ML_OPTIONS settings.
wenzelm@64274
  2601
wenzelm@63827
  2602
* System option "checkpoint" helps to fine-tune the global heap space
wenzelm@63827
  2603
management of isabelle build. This is relevant for big sessions that may
wenzelm@63827
  2604
exhaust the small 32-bit address space of the ML process (which is used
wenzelm@63827
  2605
by default).
wenzelm@63827
  2606
wenzelm@64308
  2607
* System option "profiling" specifies the mode for global ML profiling
wenzelm@64342
  2608
in "isabelle build". Possible values are "time", "allocations". The
wenzelm@64342
  2609
command-line tool "isabelle profiling_report" helps to digest the
wenzelm@64342
  2610
resulting log files.
wenzelm@64308
  2611
wenzelm@63986
  2612
* System option "ML_process_policy" specifies an optional command prefix
wenzelm@63986
  2613
for the underlying ML process, e.g. to control CPU affinity on
wenzelm@63987
  2614
multiprocessor systems. The "isabelle jedit" tool allows to override the
wenzelm@63987
  2615
implicit default via option -p.
wenzelm@63986
  2616
wenzelm@64390
  2617
* Command-line tool "isabelle console" provides option -r to help to
wenzelm@64390
  2618
bootstrapping Isabelle/Pure interactively.
wenzelm@64390
  2619
wenzelm@64390
  2620
* Command-line tool "isabelle yxml" has been discontinued.
wenzelm@64390
  2621
INCOMPATIBILITY, use operations from the modules "XML" and "YXML" in
wenzelm@64390
  2622
Isabelle/ML or Isabelle/Scala.
wenzelm@64390
  2623
wenzelm@64390
  2624
* Many Isabelle tools that require a Java runtime system refer to the
wenzelm@64390
  2625
settings ISABELLE_TOOL_JAVA_OPTIONS32 / ISABELLE_TOOL_JAVA_OPTIONS64,
wenzelm@64390
  2626
depending on the underlying platform. The settings for "isabelle build"
wenzelm@64390
  2627
ISABELLE_BUILD_JAVA_OPTIONS32 / ISABELLE_BUILD_JAVA_OPTIONS64 have been
wenzelm@64390
  2628
discontinued. Potential INCOMPATIBILITY.
wenzelm@64390
  2629
wenzelm@64390
  2630
* The Isabelle system environment always ensures that the main
wenzelm@64390
  2631
executables are found within the shell search $PATH: "isabelle" and
wenzelm@64390
  2632
"isabelle_scala_script".
wenzelm@64390
  2633
wenzelm@64390
  2634
* Isabelle tools may consist of .scala files: the Scala compiler is
wenzelm@64390
  2635
invoked on the spot. The source needs to define some object that extends
wenzelm@64390
  2636
Isabelle_Tool.Body.
wenzelm@64390
  2637
wenzelm@64390
  2638
* File.bash_string, File.bash_path etc. represent Isabelle/ML and
wenzelm@64390
  2639
Isabelle/Scala strings authentically within GNU bash. This is useful to
wenzelm@64390
  2640
produce robust shell scripts under program control, without worrying
wenzelm@64390
  2641
about spaces or special characters. Note that user output works via
wenzelm@64390
  2642
Path.print (ML) or Path.toString (Scala). INCOMPATIBILITY, the old (and
wenzelm@64390
  2643
less versatile) operations File.shell_quote, File.shell_path etc. have
wenzelm@64390
  2644
been discontinued.
wenzelm@64390
  2645
wenzelm@63995
  2646
* The isabelle_java executable allows to run a Java process within the
wenzelm@63995
  2647
name space of Java and Scala components that are bundled with Isabelle,
wenzelm@63995
  2648
but without the Isabelle settings environment.
wenzelm@63995
  2649
wenzelm@64390
  2650
* Isabelle/Scala: the SSH module supports ssh and sftp connections, for
wenzelm@64390
  2651
remote command-execution and file-system access. This resembles
wenzelm@64390
  2652
operations from module File and Isabelle_System to some extent. Note
wenzelm@64390
  2653
that Path specifications need to be resolved remotely via
wenzelm@64390
  2654
ssh.remote_path instead of File.standard_path: the implicit process
wenzelm@64390
  2655
environment is different, Isabelle settings are not available remotely.
wenzelm@64390
  2656
wenzelm@64390
  2657
* Isabelle/Scala: the Mercurial module supports repositories via the
wenzelm@64390
  2658
regular hg command-line interface. The repositroy clone and working
wenzelm@64390
  2659
directory may reside on a local or remote file-system (via ssh
wenzelm@64390
  2660
connection).
wenzelm@64265
  2661
wenzelm@62354
  2662
wenzelm@62354
  2663
wenzelm@62031
  2664
New in Isabelle2016 (February 2016)
wenzelm@62016
  2665
-----------------------------------
wenzelm@60138
  2666
wenzelm@61337
  2667
*** General ***
wenzelm@61337
  2668
wenzelm@62168
  2669
* Eisbach is now based on Pure instead of HOL. Objects-logics may import
wenzelm@62168
  2670
either the theory ~~/src/HOL/Eisbach/Eisbach (for HOL etc.) or
wenzelm@62168
  2671
~~/src/HOL/Eisbach/Eisbach_Old_Appl_Syntax (for FOL, ZF etc.). Note that
wenzelm@62168
  2672
the HOL-Eisbach session located in ~~/src/HOL/Eisbach/ contains further
wenzelm@62168
  2673
examples that do require HOL.
wenzelm@62168
  2674
wenzelm@62157
  2675
* Better resource usage on all platforms (Linux, Windows, Mac OS X) for
wenzelm@62157
  2676
both Isabelle/ML and Isabelle/Scala.  Slightly reduced heap space usage.
wenzelm@62157
  2677
wenzelm@62017
  2678
* Former "xsymbols" syntax with Isabelle symbols is used by default,
wenzelm@62017
  2679
without any special print mode. Important ASCII replacement syntax
wenzelm@62017
  2680
remains available under print mode "ASCII", but less important syntax
wenzelm@62017
  2681
has been removed (see below).
wenzelm@62017
  2682
wenzelm@62109
  2683
* Support for more arrow symbols, with rendering in LaTeX and Isabelle
wenzelm@62109
  2684
fonts: \<Lleftarrow> \<Rrightarrow> \<longlongleftarrow> \<longlongrightarrow> \<longlonglongleftarrow> \<longlonglongrightarrow>.
wenzelm@62017
  2685
wenzelm@62108
  2686
* Special notation \<struct> for the first implicit 'structure' in the
wenzelm@62108
  2687
context has been discontinued. Rare INCOMPATIBILITY, use explicit
wenzelm@62108
  2688
structure name instead, notably in indexed notation with block-subscript
wenzelm@62108
  2689
(e.g. \<odot>\<^bsub>A\<^esub>).
wenzelm@62108
  2690
wenzelm@62108
  2691
* The glyph for \<diamond> in the IsabelleText font now corresponds better to its
wenzelm@62108
  2692
counterpart \<box> as quantifier-like symbol. A small diamond is available as
wenzelm@62108
  2693
\<diamondop>; the old symbol \<struct> loses this rendering and any special
wenzelm@62108
  2694
meaning.
wenzelm@62108
  2695
wenzelm@62017
  2696
* Syntax for formal comments "-- text" now also supports the symbolic
wenzelm@62017
  2697
form "\<comment> text". Command-line tool "isabelle update_cartouches -c" helps
wenzelm@62017
  2698
to update old sources.
wenzelm@62017
  2699
wenzelm@61337
  2700
* Toplevel theorem statements have been simplified as follows:
wenzelm@61337
  2701
wenzelm@61337
  2702
  theorems             ~>  lemmas
wenzelm@61337
  2703
  schematic_lemma      ~>  schematic_goal
wenzelm@61337
  2704
  schematic_theorem    ~>  schematic_goal
wenzelm@61337
  2705
  schematic_corollary  ~>  schematic_goal
wenzelm@61337
  2706
wenzelm@61337
  2707
Command-line tool "isabelle update_theorems" updates theory sources
wenzelm@61337
  2708
accordingly.
wenzelm@61337
  2709
wenzelm@61338
  2710
* Toplevel theorem statement 'proposition' is another alias for
wenzelm@61338
  2711
'theorem'.
wenzelm@61338
  2712
wenzelm@62169
  2713
* The old 'defs' command has been removed (legacy since Isabelle2014).
wenzelm@62169
  2714
INCOMPATIBILITY, use regular 'definition' instead. Overloaded and/or
wenzelm@62169
  2715
deferred definitions require a surrounding 'overloading' block.
wenzelm@62169
  2716
wenzelm@61337
  2717
wenzelm@60610
  2718
*** Prover IDE -- Isabelle/Scala/jEdit ***
wenzelm@60610
  2719
wenzelm@60986
  2720
* IDE support for the source-level debugger of Poly/ML, to work with
wenzelm@62253
  2721
Isabel