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so that the example of bug #1425 is accepted.
- Backtrack level of notations for morphism signatures to 55.
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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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lists of occurrences through tactics. Implement the "at" variants of
setoid_replace correspondingly.
Fix in class_tactics efor w_unify not checking types when unifying a
meta with anything (problematic at top-level only).
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- Closed bugs 121, 1696, 1438, 1425, 1696, 1604, 1738, 1760, 1683 related to
setoids. Add corresponding test files.
- Add new modulo_zeta flag to control zeta during unification (e.g. not
allowed for setoid_rewrite unification, but ok for almost everything
else).
- Various fixes in class_tactics with respect to evars and error
messages.
- Correct error message for NoOccurenceFound, distinguishing between a
rewrite in the goal or an hypothesis.
- Move notations for ==>, --> and ++> to level 90 as suggested by
Russell O'Conor.
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- More meaningful argument name for resolve_typeclasses.
- Try to remove unneeded instance declarations in
Morphisms.
- Allow the proofs of reflexivity arising from unchanged
arguments in setoid_rewrite to be fullfiled by Morphism instances and
not necessariy because the relation is reflexive (needed by
higher-order morphisms). Use a new "MorphismProxy" class to implement
that efficiently.
- Fix a bug in abstract_generalize not delta-reducing a type where it should.
git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@10807 85f007b7-540e-0410-9357-904b9bb8a0f7
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SetoidTactics and document it. Cleanup Classes.Equivalence.
Minor fixes to the Program doc.
git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@10799 85f007b7-540e-0410-9357-904b9bb8a0f7
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semantics.
- Add an Equivalence instance for pointwise equality from an
Equivalence on the codomain of a function type, used by default when
comparing functions with the Setoid's ===/equiv.
- Partially fix the auto hint database "add" function where the exact
same lemma could be added twice (happens when doing load for example).
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- Re-restriction de inversion (après la correction des bugs - et
notamment du "Unknown meta" qui apparaissait parfois -, inversion
devenait capable d'agir sur des buts non atomiques, ce qui crée
quelques incompatibilités, typiquement dans CoRN où inversion est
utilisé dans un rôle de discriminate; en attendant de voir, on
revient à la sémantique initiale).
- Généralisation de Local/Global dans Implicit Arguments pour avoir un
fonctionnement plus uniforme et plus facile à documenter.
- Code mort (clenv.ml).
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- gestion des idents (suite commit 10785) [lib, interp, contrib/ring, dev]
- suppression (enfin) des $id dans les constr (utilisation des MetaIdArg des
quotations de tactiques pour simuler les métas des constr - quitte à devoir
utiliser un let-in dans l'expression de tactique) [proofs, parsing, tactics]
- utilisation de error en place d'un "print_string" d'échec dans fourier
- améliorations espérées vis à vis de quelques "bizarreries" dans la gestion
des Meta [pretyping]
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projections are of the form "equivalence_reflexive" and instance names
too. As they are (almost) never used directly, it does not hurt to have
long explicit names.
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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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declarations. By default, print the list of implicitely generalized
variables. Implement new commands Add Parametric Relation/Morphism for...
parametric relations and morphisms. Now the Add * commands are strict
about free vars and will fail if there remain some. Parametric just allows to
give a variable context. Also, correct a bug in generalization of
implicits that ordered the variables in the wrong order.
git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@10782 85f007b7-540e-0410-9357-904b9bb8a0f7
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Uses setoid_rewrite even if rewriting with leibniz if there are
specified occurences, maybe a combination of pattern and rewrite could
be done instead. Correct spelling of occurrences.
Coq does not compile with this patch, the next one will make it compile
again.
git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@10781 85f007b7-540e-0410-9357-904b9bb8a0f7
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loading and exporting of Setoid to ROmega which uses it for iff.
git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@10775 85f007b7-540e-0410-9357-904b9bb8a0f7
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- disallow uninstantiated hypotheses (typically local variables with no
assigned types) as solutions for typeclass instantiation.
- Fix resolve_typeclasses call in pretyping that was not propagating
found instances in the term.
git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@10772 85f007b7-540e-0410-9357-904b9bb8a0f7
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relf/sym/trans relations from morphisms on prop connectives and
relations.
- Add general order theory on predicates, instantiated for relations.
Derives equivalence, implication, conjunction and disjunction as
liftings from propositional connectives. Can be used for n-ary
homogeneous predicates thanks to a bit of metaprogramming with lists of
types.
- Rebind Setoid_Theory to use the Equivalence record type instead of
declaring an isomorphic one. One needs to do "red" after constructor to
get the same statements when building objects of type Setoid_Theory, so
scripts break.
git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@10765 85f007b7-540e-0410-9357-904b9bb8a0f7
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lemmes se terminant par False ou not sur n'importe quelle formule
(cela crée trop d'incompatibilités dans les "try apply" etc.); de
toutes façons, "contradict" joue presque ce rôle (à ceci près qu'il
ne traverse pas les conjonctions) (tactics/tactics.ml).
- Quelques corrections sur RIneq.v
- le hint Rlt_not_eq avait été oublié dans la phase de restructuration,
- davantage de noms canoniques (O -> 0, etc.),
- nouvelle tentative de ramener "auto" vers Rle (avec Rle_ge) plutôt
que vers Rge qui est moins souvent associé à des hints.
- Utilisation du formateur deep_ft pour afficher les scripts de preuve afin
d'éviter le besoin d'un "Set Printing Depth" (vernacentries.ml).
- Suppression de certaines utilisations de l'Anomaly de meta_fvalue
qui ne correspondaient pas à des comportements anormaux (reductionops.ml).
git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@10760 85f007b7-540e-0410-9357-904b9bb8a0f7
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- Allow unicode superscripts characters.
- Put Program notations in scopes.
- Correct priority semantics in typeclasses eauto.
git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@10759 85f007b7-540e-0410-9357-904b9bb8a0f7
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traverser les conjonctions (par exemple, apply sur un "iff" cherchera
à utiliser la première des 2 composantes qui s'applique).
git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@10758 85f007b7-540e-0410-9357-904b9bb8a0f7
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lorsqu'en position terminale (en fait, l'idéal serait de pouvoir
mettre des tactiques dans les branches, style "intros [H ; tac | ]")
(cf un exemple QvMake.v)
- Pas de delta du tout quand on fait de la recherche de sous-terme
(même lorsqu'on vient de apply avec une conclusion ?P t) (cf un
exemple dans Rocq/DEMOS/Sorting.v)
git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@10755 85f007b7-540e-0410-9357-904b9bb8a0f7
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- ajout de -> et <- pour substitution immédiate d'une égalité
(comportement à la subst si variable, à la rewrite in * sinon)
- ajout possibilité d'hypothèses avec paramètres
- correction d'un comportement bizarre de l'utilisation des noms dans
cas "[[|] H]" (cf CHANGES)
Ce serait bien d'avoir quelque chose comme "intros (H as <-) (H' as [ | ])"
pour décider de garder les noms, mais la syntaxe est assez
moche. Peut-être un "intros H: <- H': [ | ]" ?
git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@10753 85f007b7-540e-0410-9357-904b9bb8a0f7
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un lemme avec evars est utilisé localement avec auto ou eauto (clause using).
git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@10752 85f007b7-540e-0410-9357-904b9bb8a0f7
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n'était pas encore fait
git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@10750 85f007b7-540e-0410-9357-904b9bb8a0f7
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alleviate some problems with delta. Better precedence in lambda
notation. Temporarily deactivate notations for relation conjunction,
equivalence and so on, while we search for a better syntax and maybe a
generalization (fixes bug #1820). Better destruct_call in
Program.Tactics.
git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@10742 85f007b7-540e-0410-9357-904b9bb8a0f7
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pas correctes
git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@10739 85f007b7-540e-0410-9357-904b9bb8a0f7
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- Use support for abbreviations with params added by Hugo for inverse.
- Standard priorities for operators on relations.
git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@10733 85f007b7-540e-0410-9357-904b9bb8a0f7
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- Nouvel essai de prise en compte unfold dans apply (unification.ml)
- Correction bug commit précédent (constrintern.ml)
- Correction bug d'explication des evars non résolues (evarutil.ml)
- Fenêtre de query coqide plus large (command_windows.ml)
- Orthographe tauto (tauto.ml4)
- Crédits (ConstructiveEpsilon.v)
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Add definitions of relational algebra in Classes/RelationClasses
including equivalence, inclusion, conjunction and disjunction. Add
PartialOrder class and show that we have a partial order on relations.
Change SubRelation to subrelation for consistency with the standard
library. The caracterization of PartialOrder is a bit original: we
require an equivalence and a preorder so that the equivalence relation
is equivalent to the conjunction of the order relation and its
inverse. We can derive antisymmetry and appropriate morphism instances
from this. Also add a fully general heterogeneous definition of
respectful from which we can build the non-dependent respectful
combinator.
git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@10728 85f007b7-540e-0410-9357-904b9bb8a0f7
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- Better interface in constrintern w.r.t. evars used during typechecking
- Add "unsatisfiable_constraints" exception which gives back the raw
evar_map that was not satisfied during typeclass search (presentation
could be improved).
- Correctly infer the minimal sort for typeclasses declared as
definitions (everything was in type before).
- Really handle priorities in typeclass eauto: goals produced with higher
priority (lowest number) instances are tried before other of lower
priority goals, regardless of the number of subgoals.
- Change inverse to a notation for flip, now that universe polymorphic
definitions are handled correctly.
- Add EquivalenceDec class similar to SetoidDec, declaring decision
procedures for equivalences.
git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@10724 85f007b7-540e-0410-9357-904b9bb8a0f7
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context [] pattern). May break some user contribs...
Rename clsubstitute to substitute.
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types. Change (again) the semantics of bindings and the binding modifier
! in typeclasses. Inside [ ], implicit binding where only parameters
need to be given is the default, use ! to use explicit binding, which is
equivalent to regular bindings except for generalization of free
variables. Outside brackets (e.g. on the right of instance
declarations), explicit binding is the default, and implicit binding
can be used by adding ! in front. This avoids almost every use of ! in
the standard library and in other examples I have.
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symmetric... classes for now, merging Relations with RelationClasses
requires some non-trivial changes on implicits but also some definitions
are different (e.g. antisymmetric in Classes is defined w.r.t an
equivalence relation and not eq). Move back to Reflexive and so on.
reflexivity-like tactics fail in the same way as before if Setoid was
not imported. There is now a scope for morphism signatures, hence "==>",
"++>" and "-->" can be given different interpretations.
git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@10708 85f007b7-540e-0410-9357-904b9bb8a0f7
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rewrite calls fail because an occurence is found under a lambda that
was not found before and there are no adequate morphism declarations to
make the rewrite succeed nor the possibility to give occurences to
rewrite (yet). Only setoid_rewrite will try rewriting under lambda's for
now. Example problem found in a port of the Random library.
Also improved the required_library error message.
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names, gives the ability to specify qualified classes in instance
declarations. Use that in the class_tactics code.
Refine the implementation of classes. For singleton classes the
implementation of the class becomes a regular definition (into Type or
Prop). The single method becomes a 'trivial' projection that allows to
launch typeclass resolution. Each instance is just a definition as
usual. Examples in theories/Classes/RelationClasses. This permits to
define [Class reflexive A (R : relation A) := refl : forall x, R x
x.]. The definition of [reflexive] that is generated is the same as the
original one. We just need a way to declare arbitrary lemmas as
instances of a particular class to retrofit existing reflexivity lemmas
as typeclass instances of the [reflexive] class.
Also debug rewriting under binders in setoid_rewrite to allow rewriting
with lemmas which capture the bound variables when applied (works only
with setoid_rewrite, as rewrite first matches the lemma with the entire,
closed term). One can rewrite with [H : forall x, R (f x) (g x)] in the goal
[exists x, P (f x)].
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Adds some instances that incur again a small performance penalty because they cannot
be discriminated against for now (the discrimination net is considering
the head constructor to be Morphism).
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use it for elim principle type generation from merged graphs.
git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@10693 85f007b7-540e-0410-9357-904b9bb8a0f7
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rewriting, in some sense bootstrapping the system. Remove redundant
morphisms for now to test for completeness (small performance penalty).
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resolution. Add [relation] and Setoid's [equiv] as such objects.
Considerably simplify resolve_all_evars for typeclass resolution, adding
a further refinement (and hack): evars get classified as non-resolvable
(using the evar_extra dynamic field) if they are turned into a
goal. This makes it possible to perform nested typeclass resolution
without looping. We
take advantage of that in Classes/Morphisms where [subrelation_tac] is
added to the [Morphism] search procedure and calls the apply tactic which
itself triggers typeclass resolution. Having [subrelation_tac] as a tactic
instead of an instance, we can actually force that it is applied only
once in each search branch and avoid looping.
We could get rid of the hack when we have real goals-as-evars
functionality (hint hint).
Also fix some test-suite scripts which were still calling [refl]
instead of [reflexivity].
git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@10687 85f007b7-540e-0410-9357-904b9bb8a0f7
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setoid rewrite. Refine and use the new unification flags setup by Hugo
to do a little bit of delta in clenv_unify/w_unify. Moved from a boolean
indicating conversion is wanted to a Cpred representing the
constants one wants to get unfolded to have more precise control. Add
corresponding test-suite file.
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implicits for left, inl or eq, hence some theories had to be changed
again. It should make some user contribs compile again too. Also
do not import functional extensionality when importing Program.Basics,
add a Combinators file for proofs requiring it and a Syntax file for the
implicit settings. Move Classes.Relations to Classes.RelationClasses to
avoid name clash warnings as advised by Hugo and Pierre.
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[id] instead of their expansions. Seems to slow things down a bit
(1s. on Ring_polynom).
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appels à type_of et get_type_of sont souvent utilisés pour construire
des termes à partir de types; on ne rajoute pas non plus de
contraintes inutiles parce que type_of et get_type_of ne changent pas
le graphe de contraintes; tout ce qu'on perd est une information
utilisateur sur le type en lui-même mais puisque pretty.ml n'appelle
ni type_of ni get_type_of, ces informations sur la représentation
interne des univers restent a priori accessibles pour l'utilisateur.
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complique le débogage...). Réécriture de 2 morceaux de code qui
utilisaient les anomalies à des fins détournées de leur intention.
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- Correction bug des filtres dans define_evar_as_abstraction
- Nettoyage, documentation et réorganisations diverses
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morphisms on R --> inverse R' for any R, R' (report by N. Tabareau).
Better implementation of unfolding for impl that does it only where
necessary to keep the goal in the same shape as the user gave.
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declaration. Really fix bug#1704, correct order of condition subgoals
even in setoid_rewrite.
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