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- Correct backtracking function of coqdoc to handle the _p fields of lexers
- Try a better typesetting of [[ ]] inline code considering it as
blocks and not purely inline code like [ ] escapings.
- Rework latex macros for better factorization and support external
references in pdf output.
- Better criterion for generalization of variables in dependent
elimination tactic and better error message in [specialize_hypothesis].
- In autounfold, don't put the core unfolds by default.
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branch
and remove equations stuff which moves to a separate plugin.
Classes:
- Ability to define classes post-hoc from constants or inductive types.
- Correctly rebuild the hint database associated to local hypotheses when
they are changed by a [Hint Extern] in typeclass resolution.
Tactics and proofs:
- Change [revert] so that it keeps let-ins (but not [generalize]).
- Various improvements to the [generalize_eqs] tactic to make it more robust
and produce the smallest proof terms possible.
Move [specialize_hypothesis] in tactics.ml as it goes hand in hand with
[generalize_eqs].
- A few new general purpose tactics in Program.Tactics like [revert_until]
- Make transitive closure well-foundedness proofs transparent.
- More uniform testing for metas/evars in pretyping/unification.ml
(might introduce a few changes in the contribs).
Program:
- Better sorting of dependencies in obligations.
- Ability to start a Program definition from just a type and no obligations,
automatically adding an obligation for this type.
- In compilation of Program's well-founded definitions, make the functional a
separate definition for easier reasoning.
- Add a hint database for every Program populated by [Hint Unfold]s for
every defined obligation constant.
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unification for exact hints.
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more often but respects the spec better. The changes in the stdlib are
reduced to adding a few explicit [unfold]s in FMapFacts (exact was doing
conversion with delta on open terms in that case).
Also fix a minor bug in typeclasses not seeing typeclass evars when
their type was a (defined) evar itself.
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This commit concerns about the first half of the useless code
mentionned by Oug for coqtop (without plugins). For the moment,
Oug is used in a mode where any elements mentionned in a .mli
is considered to be precious. This already allows to detect and
remove about 600 lines, and more is still to come.
Among the interesting points, the type Entries.specification_entry
and its constructors SPExxx were never used. Large parts of cases.ml
(and hence subtac_cases.ml) were also useless.
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inductive types was not taken into account).
- Virtually extended tauto to
- support arbitrary-length disjunctions and conjunctions,
- support arbitrary complex forms of disjunctions and
conjunctions when in the contravariant of an implicative hypothesis,
- stick with the purely propositional fragment and not apply reflexivity.
This is virtual in the sense that it is not activated since it breaks
compatibility with the existing tauto.
- Modified the notion of conjunction and unit type used in hipattern in a
way that is closer to the intuitive meaning (forbid dependencies
between parameters in conjunction; forbid indices in unit types).
- Investigated how far "iff" could be turned into a direct inductive
definition; modified tauto.ml4 so that it works with the current and
the alternative definition.
- Fixed a bug in the error message from lookup_eliminator.
- Other minor changes.
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the number of conjunctions to split.
- A few cleaning and uniformisation in auto.ml.
- Removal of v62 hints already in core.
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variant of the [unify] tactic that takes a hint db as argument and does
unification modulo its [transparent_state]. Add test-file for bug #1939
and another [AdvancedTypeClasses.v] that mimicks
[AdvancedCanonicalStructure.v].
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right unification flags for exact hints in eauto (may break a lot of
things by succeeding much more often).
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This permits to create a database [relations] in [RelationClasses] with
a single extern tactic in it that tries to apply [reflexivity] or
[symmetry]. This is then automatically used in [auto with *] and repair
backward compatibility. The previous commit broke some scripts which were
using [intuition] to do (setoid) [reflexivity] or [symmetry]: this
worked only by accident, because the hint database of typeclasses was
used. Overrall, this also allows to put a bunch of
always-applicable, related tactics in some database or to use
[Hint Extern] but match only on hypotheses.
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majuscule - si pas un ident ou un terme - et se terminent par un point).
Restent quelques utilisations de "error" qui sont liées à des usages internes,
ne faudrait-il pas utiliser des exceptions plus spécifiques à la place ?
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goals containing existentials and use transparency information on
constants (optionally). Only used by the typeclasses eauto engine for
now, but could be used for other hint bases easily (just switch a boolean).
Had to add a new "creation" hint to be able to set said boolean upon
creation of the typeclass_instances hint db.
Improve the proof-search algorithm for Morphism, up to 10 seconds
gained in e.g. Field_theory, Ring_polynom. Added a morphism
declaration for [compose].
One needs to declare more constants as being unfoldable using
the [Typeclasses unfold] command so that discrimination is done correctly, but
that amounts to only 6 declarations in the standard library.
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- Changement au passage de la convention "at -n1 ... -n2" en
"at - n1 ... n2" qui me paraît plus clair à partir du moment où on peut
pas mélanger des positifs et des négatifs.
- Au passage:
- simplification de gclause avec fusion de onconcl et concl_occs,
- généralisation de l'utilisation de la désignation des occurrences par la
négative aux cas de setoid_rewrite, clrewrite et rewrite at,
- correction d'un bug de "rewrite in at" qui utilisait le at de la
conclusion dans les hyps.
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in a separate function in Refiner and use it in eauto to capture the
same semantics as auto (which uses tclTRY) when trying tactics.
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in reasonable time), add (unfinished) documentation on type classes.
Put some classes into Prop explicitely as singleton inductive types are
no longer in Prop by default even if all the arguments are (is that
really what we want? roconnor says no).
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now. Fix proof scripts that failed correspondingly. Should make many
contribs compile again...
git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@10863 85f007b7-540e-0410-9357-904b9bb8a0f7
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substitution. Makes unification succeed a bit more often, hence auto
works better in some cases.
- Backtrack the changes of auto using Hint Unfold to do more delta and add
a new tactic "new auto" which does that, for compatibility.
The first fix may have a big impact on the contribs, whereas the second
should make them compile again... we'll see.
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debugging and printing hint databases
- Typeclasses unfold now correctly adds _global_ unfold hints.
- New tactic autosimpl to do simplification using the declared unfold
hints in given hint databases.
- Work on auto-modulo-some-delta (the declared Unfold constants),
actually used mostly if the goal contains evars, as Hint_db.map_auto
does not work up-to any conversions (yet).
- Fix GenMul which was using the old semantics of failing early because
of variance checks, which is not possible in the new implementation.
- Restrict when reflexive_morphism may be used using an extern tactic.
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term unification (for constant and variable delta unfolding) and one to
parameterize closed-term conversion. Most of the time conversion uses
full delta and unification does no delta. This fine-grain is used in
rewrite/setoid_rewrite, where only closed-term delta on global constants
is allowed.
- Interpret Hint Unfold as a directive for delta conversion in
auto/eauto when applying lemmas (i.e., for Resolve and Immediate hints).
- Remove ad-hoc support for this in typeclasses. Now setoid_rewrite
works correctly w.r.t. the old version regarding local definitions.
- Fix closed bugs which needed updating due to syntax modifications.
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- vérification de la cohérence des ident pour éviter une option -R
avec des noms non parsables (la vérification est faite dans
id_of_string ce qui est très exigeant; faudrait-il une solution plus
souple ?)
- correction message d'erreur inapproprié dans le apply qui descend dans les
conjonctions
- nettoyage autour de l'échec en présence de métas dans le prim_refiner
- nouveau message d'erreur quand des variables ne peuvent être instanciées
- quelques simplifications et davantage de robustesse dans inversion
- factorisation du code de constructor and co avec celui de econstructor and co
Documentation des tactiques
- edestruct/einduction/ecase/eelim et nouveautés apply
- nouvelle sémantique des intropatterns disjonctifs et documentation des
pattern -> et <-
- relecture de certaines parties du chapitre tactique
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un lemme avec evars est utilisé localement avec auto ou eauto (clause using).
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class_tactics for further customizations. Add Equivalence.v for
typeclass definitions on equivalences and clrewrite.v test-suite for
clrewrite. Debugging the tactic I found missing morphisms that are now
in Morphisms.v and removed some that made proof search fail or take too
long, not sure it's complete however.
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class_setoid to class_tactics...
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only, and get rid of the "relation" definition which makes unification
fail blatantly. Replace it with a notation :) In its current state,
the new tactic seems ready for larger tests.
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eauto instead of an arbitrary tactic. Export more from eauto to allow
easier debugging.
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return a solution for the whole set of goals at once only. Add "debug
eauto" and "dfs eauto" syntaxes to get better control on the algorithm
from the surface interface.
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lib/option.ml(i) . J'en profite pour rajouter des primitives de lifting
des fonctions (à un ou deux arguments tous ou partie de type option).
Il reste quelques opérations dans Util à propos desquelles je ne suis
pas trop sûr, ou simplement que j'ai oublié, mais qui attendront demain
car il est tard (comme some_in qui devrait devenir Option.make je
suppose) . Elles s'expriment souvent facilement en fonction des
autres, par exemple "option_compare x y" est égal à "Option.lift2 compare x y"
. Le option_cons devrait faire son chemin dans le module parce qu'il est
assez primitif et qu'il n'y a pas de fonction "cons" dans OCaml.
J'en ai profité aussi pour remplacer les trop nombreux "failwith" par
des erreurs locales au module, donc plus robustes.
J'ai trouvé aussi une fonction qui était définie deux fois, et une
définie dans un module particulier.
Mon seul bémol (mais facile à traiter) c'est la proximité entre le
nom de module Option et l'ancien Options. J'ai pas de meilleure idée de
nom à l'heure qu'il est, ni pour l'un, ni pour l'autre.
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utilities from Util. Some additions in Util, and simplifications
in various files.
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apply afin de reculer au plus tard les décisions irréversibles et en
particulier de pouvoir typer les with-bindings modulo coercions :
- l'unification des types des métas données en with-bindings est
retardé à après l'unification (unify_0) de telle sorte que les
instances trouvées par unify_0 soient prioritaires et que la
décision d'insérer éventuellement des coercions autour des valeurs
données en with-bindings se fasse au dernier moment;
- toujours pour permettre d'insérer ultimement des coercions,
l'instantiation des with-bindings ne se fait plus
l'appel unify_0 (cf clenv_unique_resolver);
- pour permettre ce retardement sans limiter le test de conversion
que unify_0 fait sur les termes clos, on transmet à unify_0 les
métas données en with-bindings (ainsi l'instantiation de ces métas
peut être faite dynamiquement au moment du test de clôture);
- parce que les métas données en with-bindings qui sont en position
de rédex (cas d'un "apply f_equal with (f:=fun ...)" peuvent
simplifier le problème d'unification (et elles ne sont pas de
toutes façons pas réinférables au premier ordre), on continue à
les substituer avant l'appel à unify_0 (cf meta_reducible_instance);
- pour l'unification du second-ordre, on continue d'instancier les
with-bindings et d'unifier les types des with-bindings avant
unification;
- reste à régler un problème de compatibilité lorsque le résultat de
l'unification des types des with-bindings est utilisé pour rendre
un terme clos et pour permettre à unify_0 d'utiliser la conversion.
+ meilleure compatibilité de apply, split, left, right pour le code
qui l'utilise avec des bindings clos
+ nettoyage et uniformisation des clenv_match_args, clenv_missing, et assimilés
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Fusion des syntaxes de "apply" et "eapply". Ajout de "eapply in",
"erewrite" et "erewrite in". Correction au passage des bugs #1461 et
#1522).
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de la réduction paresseuse du lemme [eapply n'en profitait pas], et
l'un et l'autre profite de l'unification2nd ordre sur la forme réduite
du lemme [apply n'en profitait pas]).
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du rôle de l'argument (-1) de make_clenv_binding_apply; nouvelle
correction qui évite ce codage.
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permettre de passer les occurrences en paramètre dans ltac, par exemple à pattern
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changé entre les version 3.08.4 et 3.09.0 (influe notamment sur l'ordre
d'application des Hints de auto)
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(mécanismes de renommage des noms de constantes, de module, de ltac et de certaines variables liées de lemmes et de tactiques, mécanisme d'ajout d'arguments implicites, etc.)
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tactiques
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Ajout de cast indiquant au kernel la strategie a suivre
Resolution du bug sur les coinductifs
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ocaml 3.09
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* the Unfold hints of auto/eauto now use evaluable_global_references in place
of global_references
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