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2008-10-23Forgot one file which had other local modifications...msozeau
git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@11498 85f007b7-540e-0410-9357-904b9bb8a0f7
2008-10-23Fix bug #1977 by allowing the [apply] variants to take an [open_constr]msozeau
instead of a completely resolved [constr] as input. The propagation of the evars associated to the lemma is only allowed when the evar flag is on (i.e. for [eapply]), otherwise they should be resolved by the end of the application. Should be completely backwards compatible... git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@11497 85f007b7-540e-0410-9357-904b9bb8a0f7
2008-10-23Generalized implementation of generalization.msozeau
- New constr_expr construct [CGeneralization of loc * binding_kind * abstraction_kind option * constr_expr] to generalize the free vars of the [constr_expr], binding these using [binding_kind] and making a lambda or a pi (or deciding from the scope) using [abstraction_kind option] (abstraction_kind = AbsLambda | AbsPi) - Concrete syntax "`( a = 0 )" for explicit binding of [a] and "`{ ... }" for implicit bindings (both "..(" and "_(" seem much more difficult to implement). Subject to discussion! A few examples added in a test-suite file. - Also add missing syntax for implicit/explicit combinations for _binders_: "{( )}" means implicit for the generalized (outer) vars, explicit for the (inner) variable itself. Subject to discussion as well :) - Factor much typeclass instance declaration code. We now just have to force generalization of the term after the : in instance declarations. One more step to using Instance for records. git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@11495 85f007b7-540e-0410-9357-904b9bb8a0f7
2008-10-22Affichage des notations récursives:herbelin
- Prise en compte des notations applicatives - Remplacement du codage des arguments liste des notations récursives sous forme de terme par une représentation directe (permet notamment de résoudre un problème de stack overflow de la fonction d'affichage) + Correction bug affichage Lemma dans ppvernac.ml + Divers util.ml git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@11489 85f007b7-540e-0410-9357-904b9bb8a0f7
2008-10-19- Export de pattern_ident vers les ARGUMENT EXTEND and co.herbelin
- Extension du test de réversibilité acyclique des notations dures aux notations de type abbréviation (du genre inhabited A := A). - Ajout options Local/Global à Transparent/Opaque. - Retour au comportement 8.1 pour "move" (dependant par défaut et mot-clé dependent retiré). git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@11472 85f007b7-540e-0410-9357-904b9bb8a0f7
2008-10-18Fixed bug #1966, wrong handling of evars.msozeau
git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@11468 85f007b7-540e-0410-9357-904b9bb8a0f7
2008-10-18Optimisation de clenv.ml pour que meta_instance ne soit pas appeléherbelin
abusivement sur les clauses. Nettoyage au passage de metamap qui était utilisé à la fois pour les substitutions de meta et pour les contextes de typage de meta. git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@11467 85f007b7-540e-0410-9357-904b9bb8a0f7
2008-10-11Backporting 11445 from 8.2 to trunk (negative conditions inherbelin
SearchAbout + referring objects by their notation). git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@11446 85f007b7-540e-0410-9357-904b9bb8a0f7
2008-09-25Various little improvements:msozeau
- A new [dependent pattern] tactic to do a pattern on an object in an inductive family and generalize by both the indexes and the object itself. Useful to prepare a goal for elimination with a dependent principle. - Better dependent elimination simplification tactic that doesn't throw away non-dependent equalities if they can't be injected. - Add [fold_sub] and [unfold_sub] tactics for folding/unfolding well-founded definitions using measures built by Program. git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@11420 85f007b7-540e-0410-9357-904b9bb8a0f7
2008-09-25Partial fix for bug #1948: recompute order of dependencies betweenmsozeau
evars at the end of unification as later evars can refer to previous ones. This removes the assumption that evars are already ordered in eterm's code. git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@11419 85f007b7-540e-0410-9357-904b9bb8a0f7
2008-09-14Add user syntax for creating hint databases [Create HintDb foomsozeau
[discriminated]] with a switch for using the more experimantal dnet impl for every hint. Also add [Hint Transparent/Opaque] which parameterize the dnet and the unification flags used by auto/eauto with a particular database. Document all this. Remove [Typeclasses unfold] directives that are no longer needed (everything is unfoldable by default) and move to [Typeclasses Transparent/Opaque] syntax. git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@11409 85f007b7-540e-0410-9357-904b9bb8a0f7
2008-09-14Fix bug #1936: uncaught exception due to undefinable exceptions.msozeau
git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@11405 85f007b7-540e-0410-9357-904b9bb8a0f7
2008-09-14Fix bug #1939: defined evars were not substituted in some typeclassesmsozeau
eauto goals. git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@11404 85f007b7-540e-0410-9357-904b9bb8a0f7
2008-09-13Remove redefinition of id in Program.Basics, just add maximal implicits.msozeau
git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@11401 85f007b7-540e-0410-9357-904b9bb8a0f7
2008-09-12Add a type argument to letin_tac instead of using casts and recomputingmsozeau
when one wants a particular type. Rewrite of the unification behind [Equations], much more robust but still buggy w.r.t. inaccessible patterns. git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@11399 85f007b7-540e-0410-9357-904b9bb8a0f7
2008-09-11Fixes in dependent induction tactic, putting things in better order formsozeau
simplifications (homogeneous equations first). git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@11398 85f007b7-540e-0410-9357-904b9bb8a0f7
2008-09-09Fix a bug reintroduced in [setoid_reflexivity] etc...msozeau
Go back to refine_hyp instead of specialize, because only the former handles open terms. git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@11391 85f007b7-540e-0410-9357-904b9bb8a0f7
2008-09-07Add the ability to declare [Hint Extern]'s with no pattern.msozeau
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. git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@11384 85f007b7-540e-0410-9357-904b9bb8a0f7
2008-09-07Fixes in typeclasses resolution. Avoid reducing instances types beforemsozeau
making the auto apply entry. Makes indexing better and avoid polution of [auto with *] with many abstract lemmas comming from [typeclass_instances]. Quite a nice speedup again, even Field_theory has dropped to 58s from 70s. git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@11381 85f007b7-540e-0410-9357-904b9bb8a0f7
2008-09-07Small fixes in "varify", a small tactic doing the first part ofmsozeau
reification: putting variables in a varmap. git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@11376 85f007b7-540e-0410-9357-904b9bb8a0f7
2008-09-07Better handling of the opacity of proof obligations, add the possibility ofmsozeau
overriding the default tactic when adding a definition. git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@11373 85f007b7-540e-0410-9357-904b9bb8a0f7
2008-09-04Improve typeclasses eauto using the dnet for local assumptions too, and selectmsozeau
only relevant hypotheses in it, slightly cutting the search space. Makes setoid_rewrite less sensitive to the number of hypothesis (~ 5% time improvment on the stdlib). This currently prevents resolution with constants which reduce to classes, hence the modifications in Setoids.Setoid. git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@11360 85f007b7-540e-0410-9357-904b9bb8a0f7
2008-09-04Fix camlp5-ism "Ploc.Exc" and add a unification fix: when solving anmsozeau
evar, do unification between the evar type and the type of the instance to properly propagate information. Typical example: in context ?A : Type, ?R : relation ?A. When we instantiate ?R using a goal like x = y by @eq t, we need to instantiate A to t as well. git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@11357 85f007b7-540e-0410-9357-904b9bb8a0f7
2008-09-03Fix bug #1935, reworking the reflexivity, symmetry... tactics to usemsozeau
the same typeclass method application tactic that's available to users. Modify a bit the _red tactics to accomodate the new setup and comment some dead code in setoid_replace. Next step is removing it completely. git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@11355 85f007b7-540e-0410-9357-904b9bb8a0f7
2008-09-02Initial implementation of a new command to define (dependent) functions bymsozeau
equations. It is essentially an implementation of the "Eliminating Dependent Pattern-Matching" paper by Goguen, McBride and McKinna, relying on the new dependent eliminations tactics. The bulk is in contrib/subtac/equations.ml4. It implements a tree splitting on a set of clauses and the generation of a corresponding proof term along with some obligations at each splitting node. The obligations are solved by driving the dependent elimination tactic and you get a complete proof term at the end with the code given by the equations at the right spots, the rest of the cases being pruned automatically. Does not support recursion yet, a file with examples is in the test-suite. With recursion, it would be similar to Agda 2's pattern matching, except it won't reduce in Coq due to JMeq's/K. Incidentally, the simplification tactics after dependent elimination have been improved, resulting in a clearer and more space efficient implementation. git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@11352 85f007b7-540e-0410-9357-904b9bb8a0f7
2008-08-27Major speed and space improvements in setoid rewrite:msozeau
- Avoid using projections for singleton classes. Divides the size of proofs by 2 and simplifies the typechecking as well. - Switch to the new discrimination net implementation for classes, with the current convention that all constants are unfoldable. Users can add "Typeclasses Opaque" declarations make the dnet discriminate more, otherwise it should be entirely backward-compatible. - Fix bug introduced in r11333 in "transitivity" tactic in presence of coercions. Up to 15% gains on setoid-intensive files like Ring_polynom and Field_theory. More importantly, performance should not decrease significantly by adding new Morphism/Setoid declarations. git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@11337 85f007b7-540e-0410-9357-904b9bb8a0f7
2008-08-27Little cleanup in auto.msozeau
git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@11336 85f007b7-540e-0410-9357-904b9bb8a0f7
2008-08-22- New auto hints for transparency/opacity control, not bound to msozeau
syntax yet. Doesn't change the auto/eauto behavior either. - Typeclass resolution now considers everything transparent by default and does it consistently for "open" and closed terms. - Correctly declare singleton classes definition as opaque for proof search. - Add a few initial declarations to make iff, id, compose... opaque - Add definition of dependent signatures for dependent function types and remove corresponding exception code in class_tactics. The instance requires higher-order unification and is not really usable yet. git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@11333 85f007b7-540e-0410-9357-904b9bb8a0f7
2008-08-21Fixes in dependent induction tactic to keep names, allow givingmsozeau
intro-patterns and avoid useless generalizations on inductive parameters. git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@11331 85f007b7-540e-0410-9357-904b9bb8a0f7
2008-08-05Correction de bugs:herbelin
- evarconv: mauvaise idée d'utiliser la conversion sur la tête d'un terme applicatif au moment de tester f u1 .. un = g v1 .. vn au premier ordre : on revient sur l'algo tel qu'il était avant le commit 11187. - Bug #1887 (format récursif cassé à cause de la vérification des idents). - Nouveau choix de formattage du message "Tactic Failure". - Nettoyage vocabulaire "match context" -> "match goal" au passage. git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@11305 85f007b7-540e-0410-9357-904b9bb8a0f7
2008-08-04Évolutions diverses et variées.herbelin
- Correction divers messages d'erreur - lorsque rien à réécrire dans une hyp, - lorsqu'une variable ltac n'est pas liée, - correction anomalie en présence de ?id dans le "as" de induction, - correction mauvais env dans message d'erreur de unify_0. - Diverses extensions et améliorations - "specialize" : - extension au cas (fun x1 ... xn => H u1 ... un), - renommage au même endroit. - "assert" et "pose proof" peuvent réutiliser la même hyp comme "specialize". - "induction" - intro des IH toujours au sommet même si induction sur var quantifiée, - ajout d'un hack pour la reconnaissance de schémas inductifs comme N_ind_double mais il reste du boulot pour reconnaître (et/ou réordonner) les composantes d'un schéma dont les hypothèses ne sont pas dans l'ordre standard, - vérification de longueur et éventuelle complétion des intropatterns dans le cas de sous-patterns destructifs dans induction (par exemple "destruct n as [|[|]]" sur "forall n, n=0" ne mettait pas le n dans le contexte), - localisation des erreurs d'intropattern, - ajout d'un pattern optionnel après "as" pour forcer une égalité et la nommer (*). - "apply" accepte plusieurs arguments séparés par des virgules (*). - Plus de robustesse pour clear en présence d'evars. - Amélioration affichage TacFun dans Print Ltac. - Vieux pb espace en trop en tête d'affichage des tactiques EXTEND résolu (incidemment, ça remodifie une nouvelle fois le test output Fixpoint.v !). - Fusion VTactic/VFun dans l'espoir. - Mise en place d'un système de trace de la pile des appels Ltac (tout en préservant certains aspects de la récursivité terminale - cf bug #468). - Tactiques primitives - ajout de "move before" dans les tactiques primitives et ajout des syntaxes move before et move dependent au niveau utilisateur (*), - internal_cut peuvent faire du remplacement de nom d'hypothèse existant, - suppression de Intro_replacing et du code sous-traitant - Nettoyage - Suppression cible et fichiers minicoq non portés depuis longtemps. (*) Extensions de syntaxe qu'il pourrait être opportun de discuter git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@11300 85f007b7-540e-0410-9357-904b9bb8a0f7
2008-07-28Fixes in generalize_eqs/dependent induction to allow the user to specifymsozeau
generalized variables himself. git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@11280 85f007b7-540e-0410-9357-904b9bb8a0f7
2008-07-28Fix wrong environment bug in test for setoid_rewrite or rewrite.msozeau
git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@11279 85f007b7-540e-0410-9357-904b9bb8a0f7
2008-07-28Fix bug in term dnet preventing some unifications. Allow "higher-order"msozeau
class constraints of the form Π x1 ... xn, Class args. git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@11278 85f007b7-540e-0410-9357-904b9bb8a0f7
2008-07-26Even better test for choosing rewrite or setoid_rewrite.msozeau
Now there is a class "SetoidRelation" for registering relations that should always be considered as setoids and never unfolded. Every "Add Relation" command adds an instance and impl,iff are there by default. Now the test is: if there is a SetoidRelation instance, use it ; otherwise, allow unfolding to find an eq or fallback on setoid_rewrite. To avoid searching for SetoidRelation instances repeateadly we check that it is really needed first by unfolding the hyp. Only two scripts relied on the now-forbidden semantics of rewriting by an @eq inside a setoid relation, in Numbers. git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@11269 85f007b7-540e-0410-9357-904b9bb8a0f7
2008-07-25A better test for relations being setoids or not: do leibniz rewrite iffmsozeau
the applied relation is an abbreviation for @eq. Fixes bug #1915. git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@11264 85f007b7-540e-0410-9357-904b9bb8a0f7
2008-07-25More compatibility fixes, revert the tauto fix that preventedmsozeau
destruction of records as a lot of scripts currently rely on it. git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@11263 85f007b7-540e-0410-9357-904b9bb8a0f7
2008-07-24Tauto breaking not only binary "conjunctions" seems like a bad ideamsozeau
after all... git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@11259 85f007b7-540e-0410-9357-904b9bb8a0f7
2008-07-24A (safe) implementation of prolog's cut in the typeclasses eauto to avoidmsozeau
redoing proofs for nothing, i.e, do not backtrack on proofs whose evars are disjoint from the evars of the rest of the goals. Fixes the example in bug #1911, needs some more testing. git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@11258 85f007b7-540e-0410-9357-904b9bb8a0f7
2008-07-24Suite commit 11236notin
git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@11252 85f007b7-540e-0410-9357-904b9bb8a0f7
2008-07-24Propagation de l'information "strict" (càd à toplevel ou en train deherbelin
définir une ltac) dans l'interprétation des identificateurs isolés en position de tactiques, comme dans "let x:=y in t" (résoud l'incompatibilité #1906). git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@11250 85f007b7-540e-0410-9357-904b9bb8a0f7
2008-07-22New tactics [conv] to test convertibility (actually, unification) of twomsozeau
terms and [head_of_constr id] to put the head of a constr in some new hypothesis. Both are used in a new tactic to deal with partial applications in setoid_rewrite. Also fix bug #1905 by using [subrelation] to take care of [Morphism (R ==> R') id] constraints. git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@11244 85f007b7-540e-0410-9357-904b9bb8a0f7
2008-07-22A try at allowing matching on applications as a binary syntax node by default.msozeau
It breaks tauto as [?X _ _] matches much more terms. It is mostly fixed by not destructing objects of record types. The new [intuition] was also pulling an unneeded dependency in Field_theory which can be cleared easily. Zis_gcd_bezout is also considered a conjunction now, which seems correct(?). git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@11243 85f007b7-540e-0410-9357-904b9bb8a0f7
2008-07-18Rétablissement de l'option -dump-glob de coq top et de l'option -glob-from ↵notin
de coqdoc (compatibilité) git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@11236 85f007b7-540e-0410-9357-904b9bb8a0f7
2008-07-18Modification rapide du message d'erreur lorsqu'un _ ne peut êtreherbelin
effacé dans un intro-pattern (suggéré par ssreflect). git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@11235 85f007b7-540e-0410-9357-904b9bb8a0f7
2008-07-17Uniformisation du format des messages d'erreur (commencent par uneherbelin
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 ? git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@11230 85f007b7-540e-0410-9357-904b9bb8a0f7
2008-07-16Quelques modifications autour du filtrage Ltac:herbelin
- Optimisation du filtrage sous-terme de Ltac (cf sub_match) pour le cas où c'est le n-ième sous-termes qui finalement réussit (passage à une complexité en n plutôt que n^2, via l'utilisation de continuations). - Sémantique du filtrage: suppression dans sub_match de la recherche dans le type des let (puisque ce n'est pas cencé être une information utilisateur) mais rajout de la recherche dans le champ cast qui lui est utilisateur. - Nouvelle fonctionnalité: récupération des noms des variables liantes filtrées (dans matches/sub_match) et utilisation de ces noms dans ltac (utile pour récupérer x dans "exists x, P x"); git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@11226 85f007b7-540e-0410-9357-904b9bb8a0f7
2008-07-07Fix implicit arguments in sections bug and check for resolution of evars whenmsozeau
defining records. Fix test-suite script because of new implicit argument setting for DefaultRelation. Fix regression in auto, changing the order of tried lemmas. git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@11213 85f007b7-540e-0410-9357-904b9bb8a0f7
2008-07-02Stop using the discrimination net in typeclasses/setoid rewrite, which wasmsozeau
considering every definition opaque by default, until a better fix is found. git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@11202 85f007b7-540e-0410-9357-904b9bb8a0f7
2008-06-27Enhanced discrimination nets implementation, which can now work withmsozeau
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. git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@11184 85f007b7-540e-0410-9357-904b9bb8a0f7