Plan and priority list for CoFI tool activities

************************************************

Sonja (Till)

************************************************

Diplom: Encoding for HasCASL in Isabelle/HOL(CF)

Interface Hets <-> ISabelle

in IsaProve.hs

Hets muss eine Pipe als Inode erzeugen

und dann auf Beweisterme warten

und auf "Ende" warten

und dann Proof_status sen proof_tree entsprechend ausf�llen

(siehe Logic/Prover.hs)

Isabelle (im .thy file, dass von IsaProve.hs erzeugt wird)

Beweisterme (siehe Kapitel im RefMan)

ML "proofs := 1" (am Anfang des .thy file)

am Ende jedes Theorems: Beweisterm in die Pipe schreiben

(Pipenamen direkt angeben, vom thy-file-Namen abgeleitet)

mit pretty_proof_of und Pretty.string_of

und Start- und Endmarker

am Schluss "Ende" ausgeben

Funktion basicInferenceNode in Proofs/Proofs.hs:

Theorem link nur dann gr�n, wenn alle Goals bewiesen wurden

Emacs: uni/emacs, George fragen (ger@)

************************************************

Jorina (Till)

************************************************

development graph calculus

- Stack overflow for "show just subtree"

- view-test7.casl should be provable with globDecomp + locDecopm

- fail when doing first globDecomp, then local decomp in RelationsAndOrders

- correct MAYA: glob decomp: some links are not found (Jorina)

- Fail: No match in record selector Static.DevGraph.dgn_sign

for local subsume in RelationsAndOrders

************************************************

Martin (Till)

************************************************

type check for CASL

documentation

*** Error encode.casl:8.30, No correct typing for

************************************************

Mingyi (Till)

************************************************

port CCC to Haskell

Funktionen imageOfMorphism und inhabited

von OnePoint.hs in eigenes Modul verschieben: Modul SignFuns.hs

mit "cvs add SigFuns.hs" einchecken

New module FreeTypes.hs:

"free datatypes and recursive equations are consistent"

checkFreeType :: Morphism f e m -> [FORMULA f] -> Maybe Bool

Just True => Yes, is consistent

Just False => No, is inconsistent

Nothing => don't know

call the symbols in the image of the signature morphism "new"

- each new sort must be a free type,

i.e. it must occur in a sort generation constraint that is marked as free

(Sort_gen_ax constrs True)

such that the sort is in srts, where (srts,ops,_)=recover_Sort_gen_ax constrs

if not, output "don't know"

and there must be one term of that sort (inhabited)

if not, output "no"

- group the axioms according to their leading operation/predicate symbol,

i.e. the f resp. the p in

forall x_1:s_n .... x_n:s_n . f(t_1,...,t_m)=t

forall x_1:s_n .... x_n:s_n . phi => f(t_1,...,t_m)=t

Implication Application Strong_equation

forall x_1:s_n .... x_n:s_n . p(t_1,...,t_m)<=>phi

forall x_1:s_n .... x_n:s_n . phi1 => p(t_1,...,t_m)<=>phi

Implication Predication Equivalence

if there are axioms not being of this form, output "don't know"

check' :: [EquationInfo] -> ([ExhaustivePat],EqnSet)

check' [] = ([([],[])],emptyUniqSet)

-- nur ein Pattern, bestehend aus nur Variablen? fertig, True

check' [EqnInfo n ctx ps (MatchResult CanFail _)]

| all_vars ps = ([(takeList ps (repeat new_wild_pat),[])], unitUniqSet n)

-- besteht das erste Pattern nur aus Variablen? dann darf es kein zweites geben!

check' qs@((EqnInfo n ctx ps (MatchResult CanFail _)):rs)

| all_vars ps = (pats, addOneToUniqSet indexs n)

where

(pats,indexs) = check' rs

-- falls ein Konstruktor dabei ist: split_by_constructor

-- wenn die ersten Argument nur Variablen sind: first_column_only_vars

check' qs@((EqnInfo n ctx ps result):_)

| all_vars ps = ([], unitUniqSet n)

| constructors = split_by_constructor qs

| only_vars = first_column_only_vars qs

| otherwise = panic "Check.check': Not implemented :-("

where

-- Note: RecPats will have been simplified to ConPats

-- at this stage.

constructors = or (map is_con qs)

only_vars = and (map is_var qs)

************************************************

Heng (Klaus)

************************************************

emacs mode

OWL-DL logic

OWL-DL -> CASL

-------------------------------------------------------------------

LaTeX pretty printer

eine HetCASL spezifische PP Lib (mit neuem Doc Typ), um Text, Latex

und andere Formate besser zu unterst�tzen und einheitlichen PP code

f�r die CASL Datentypen zu bekommen.

HasCASL hat auch noch keine Mixfix- und Latex Ausgabe.

************************************************

Christian

************************************************

logic coding form the comand line with printing of results

Haskell modules: hiding, renaming

- group the axioms according to their leading operation/predicate symbol,

i.e. the f resp. the p in

forall x_1:s_n .... x_n:s_n . phi => f(t_1,...,t_m)=t

forall x_1:s_n .... x_n:s_n . phi1 => p(t_1,...,t_m)<=>phi

if there are axioms not being of this form, output error

Missing points for heterogeneous WADT 04 example:

- improve display of HasCASL sigs + mors

Static analysis for HasCASL

checking class constraints of terms

pattern analysis for program equations

Sub-/Supertypes

- for simple types (currently type synonyms)

symbol representation

symbol map analysis (hiding sub/supertypes)

Weak amalgamation analysis?

Instantiate Transformation Application system for HasCASL?

Automatic generation of Haskell (for a HasCASL subset)

Proofs in HasCASL

Case study

************************************************

Klaus

************************************************

CASL -> SPASS

Coding of subsorts as unary predicates (for ontologies)

Translation between Achim's ontology data structure and CASL (in Hets)

visualization of "taxonomy" of CASL signatures

(subsorts = inheritance, unary preds = concepts, binary preds = relations)

Recognize guarded fragment of CASL:

G ::= forall x . At(x) => G where At is a conjunction of atoms

| exists x . At(x) /\ G

Joost Visser wg. ATerms in Haskell => neues Repository

************************************************

Markus, Lutz

************************************************

Beweise in Isabelle

CASL consistency checker

Weitere %implies-Annotationen zu den Basic Datatypes hinzufuegen

(Vorbild: Larch-Handbuch)

Simpsets/Taktiken fuer Minimierung der ueberladenen Typen entwickeln

Parser and static analysis for CSP-CASL

************************************************

Christoph

************************************************

CASL consistency checker

IsaWin: support CASL-libraries

************************************************

Till

************************************************

basicProofs: use info about used axioms

ensure that axiom/thm names are unique

Overload / inlineAxioms: injections

GUI: use daVinci close button;

use Workbench tool registration for central shutdown

use save button for saving proof info

remove "prove" menu in abstracted dg

better sublogic analysis in codings

thy files in subdir

adjust path for thy files, such that hets can also be started from subdirs

Restrict Sonjas simplifications to HasCASL

add suitable axioms to simplifier and CR

computeTheory: remove double axioms

add suitable axioms to simplifier and classical reasoner

better display of internal nodes (use tooltip?)

update Hets, CASL, daVinci on web page

CASL2PCFOL: x_i -> t_i, t=[inj(x_i)]

packing of binaries: add hets-update, refer to TclTk

CCC interface

test for sublogic before applying comorphism

Missing points for heterogeneous WADT 04 example:

- coding to Isabelle: translate sort gen constraints

- Improve adapation to Isabelle's lexis

Isabelle: (ask Christoph)

remove datatypes from sort list

prove local thm link (=> green)

"prove" menu with choice windows

incorporate sublogics

sublogic translation table

better interaction between Isabelle instance (for one node)

+ selection of single goals that are proved

=> use PGIP interface (Christoph, David)

correct show theory

Keep proofs and lemmas in .thy files (kind of merge)

CASL-like syntax

CASL annotation for lemmas that should be used in proof

inherit CASL's mixfix syntax

Signatures versus theories: where to store additional infos?

comp(id,x)=x for comorphism names

Generalise CASL2Modal

Mixfix analysis + typecheck for modality axiomatizations

Modal logics: modal logic, temporal logic, mu calculus

+ translations (e.g. modal to FOL)

CASL->Haskell with free DTs (mark sortgens) + recursion

- List[Dec] wird List[Pos]

- George wg. Schlie�en von Fenstern

- node numbers do not match

- thm links with external target should be provable as well

Remove warnings

Different types of logic translations

Improve Static analysis of structured specs

Development graph calculus, Strategies for DG rules

Management of change

Integrate provers

Otter model checker

FOL-prover by Uli Furhbach

modal logic: IRIT, Toulouse. Tableaux prover LOTREC, Andreas Herzig

Isabelle codings: www.inf.ethz.ch/~vigano

Renate Schmidt, Manchester: uses FOL prover for description logic

(as efficient as DL-specific tools!)

Look at PROSPER toolkit

consistency: see IJCAR-workshop on non-provability in Cork

IJCAR workshop about logical frameworks and meta-languages

Integrate CCC

Encodings

Errors:

Klaus' wayfinding example

ask Detlef: critical pairs, Fossacs paper by Francesco

UniForM workbench:

first steps towards CASL instance, using ATerms and re-using MMISS instance

variants for specs (needed for DOLCE: CASL variant, DL variant, ...)

Integration of MAYA and Isabelle/HOL (global HOL-Coding of

Grothendieck logic)

+ for TAS: reflection of HOL in HOL, to be composed with encodings

(i.e. signatures, axioms, signature morphisms in HOL,

re-use ML signatures) (Einar)

Display Specs as daVinci subgraphs

User interface

--------------

Logic graph window

Input text window

Development graph window

Prover windows

************************************************

FOR STUDENTS

************************************************

Hets interactive (provide cmd line interface, but hold loaded libraries in memory, provide switch to context of spec, and type checking of expressions, interaction with emacs mode)

Packaging of installation

GUI (vgl. VSE)

with Eclipse, WXHaskell or GTk?

how to integrate with event system of UniForM workbench?

integrate graphviz (or use Java interface for racer? or Isabelle browser? or...?)

this interacts with GUI!

Data.Serizable (only when ghc supports it)

XML interface

increase performance

integrate QuickCheck: come to lecture!

++++++++++++++++++++++++++++++++++++++++++++++++

Remaining things

++++++++++++++++++++++++++++++++++++++++++++++++

Mark-Oliver Stehr, Hamburg cf. HOL-Nurpl-Translation in Maude

Coq, PTT in Maude

Proofs with basic datatypes

Verbesserung der Fehlermeldungen

Improve encoding: CATS/basic_encode.sml (3 days)

More HOL-theories: CATS/HOL-CASL/struct_encode.sml (2 days)

Renamings in hide-elimination: CATS/struct_encode.sml, CATS//flatten.sml (1 week)

Example of Agnes und Frank: proofs in HOL-CASL (2 days)

Term input+errors in cmd line interface: CATS/casl/casl.sml (1 day)

Examples for cond rewriting -> Christophe

Doku: VSE-Prover, VSE-Method VSE-demo in Bremen?

Adapt more stuff from isabelle/src/HOL/Tools/datatype_package.ML (2 weeks)

Eigene IsaWin-Instanz mit CASL-RS statt HOL-RS

HOL-CASL Simplifier: CATS/HOL-CASL/simplifier.sml (1 week)

HOL-CASL tactics: CATS/HOL-CALS/tactic.sml (2 days)

HOL-CASL encoding: CATS/HOL-CASL/basic_encode.sml (1 day)

Encoding of structured free (3 days)

Encoding of structured cofree (2 weeks)

Eingabesyntax als Mix zwischen CASL und HOL (3 days)

Adapt Isabelle unions to CASL unions (1 week)

IsaWin git/src/isa_ext/casl_thy.sml (1 week)

Generate Proof obligations (1 week)

Add renaming to Isabelle kernel (2 months)

Basic datatypes CASL-lib/Basic/basic.casl

Repository mit korrekten und fehlerhaften Specs

HetCATS User manual, Doku fuer Environments (2 weeks)

Conversion ASF/SDF-Parser -> abstract syntax (in Haskell)

Comparsion of parsers (ML-yacc parser, SDF-Parser)

Conversion-Tool CASL 1.0 => CASL 1.0.1 komplettieren

PVS anbinden (Kooperation mit Cachan?)

Portations: Intel-Solaris, Mac OS-10 (2 weeks)

(X)Emacs mode for CASL, hide Display Annotations (2 weeks) -> Raffael Sturm

Views on CASL specs: CATS/viewer.sml (2 weeks)

Uebersetzung von CASL-LaTeX-Spezifikationen nach ASCII

Module graph CATS/module_graph.sml (1 week) -> Maya?

ATerms via XML: CATS/aterms.sml (2 weeks)

Neues Tool-Schaubild auf Web-Seiten ver�ffentlichen

Library management: CATS/lib_ana.sml (2 weeks)

Version management/Uniform Workbench: CATS/lib_ana.sml (2 months)

{- This does not work due to needed ordering:

instance Functor Set where

fmap = mapSet

instance Monad Set where

return = unitSet

m >>= k = unionManySets (setToList (fmap k m))

-}

Aufbau von comptable

--------------------

[("normal","normal","normal"),

("normal","inclusion","normal"),

("inclusion","normal","normal"),

("inclusion","inclusion","inclusion")]

Aufbau von ginfo

--------------------

Mit initgraphs erzeugen

Aufbau des Graphen selbst

------------------------

addnode

addlink