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* Fix globalization bug in class_tactics and refactorize instanceGravatar msozeau2008-05-19
| | | | | | | declaration code. git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@10946 85f007b7-540e-0410-9357-904b9bb8a0f7
* - Fix bug related to indices of fixpoints.Gravatar msozeau2008-05-13
| | | | | | | | | | | - Add a typeclasses_eauto which uses only the typeclass_instances database. - Set obligations as transparent by default to avoid the common problem with ill-formed recursive defs due to opaque obligations. git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@10925 85f007b7-540e-0410-9357-904b9bb8a0f7
* - Add -unicode flag to coqtop (sets Flags.unicode_syntax). Used toGravatar msozeau2008-05-12
| | | | | | | | | | | | | | | | | | | change the default pretty-printing to use Π, λ instead of forall and fun (and allow "," as well as "=>" for "fun" to be more consistent with the standard forall and exists syntax). Parsing allows theses new forms too, even if not in -unicode, and does not make Π or λ keywords. As usual, criticism and suggestions are welcome :) Not sure what to do about "->"/"→" ? - [setoid_replace by] now uses tactic3() to get the right parsing level for tactics. - Type class [Instance] names are now mandatory. - Document [rewrite at/by] and fix parsing of occs to support their combination. - Backtrack on [Enriching] modifier, now used exclusively in the implementation of implicit arguments. git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@10921 85f007b7-540e-0410-9357-904b9bb8a0f7
* - Cleanup parsing of binders, reducing to a single production for allGravatar msozeau2008-05-11
| | | | | | | | | | | | | | binders. - Change syntax of type class instances to better match the usual syntax of lemmas/definitions with name first, then arguments ":" instance. Update theories/Classes accordingly. - Correct globalization of tactic references when doing Ltac :=/::=, update documentation. - Remove the not so useful "(x &)" and "{{x}}" syntaxes from Program.Utils, and subset_scope as well. git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@10919 85f007b7-540e-0410-9357-904b9bb8a0f7
* Correction bug #1842 + correction bug initialisation introduit dansGravatar herbelin2008-05-10
| | | | | | | commit 10916 git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@10917 85f007b7-540e-0410-9357-904b9bb8a0f7
* - Prise en compte de l'unicode dans la fonction hdchar (elle fournissait desGravatar herbelin2008-05-10
| | | | | | | | | | | noms illégaux si le type auquel elle s'appliquait n'était pas pur ascii). [util.ml, termops.ml] - Simplification de la procédure d'initialisation (apparemment des résidus obsolètes de la V5.10) et messages d'erreurs [lib.ml, toplevel.ml, coqtop.ml] - Quelques pattern-matching incomplets [topconstr.ml, detyping.ml] git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@10916 85f007b7-540e-0410-9357-904b9bb8a0f7
* ** Efficacité, bugs, robustesse CoqIDE **Gravatar herbelin2008-05-08
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - Suppression d'une source de fuite mémoire dans declare_mod.ml (la table de hash library_table n'était pas synchronisée avec le reset et elle grossissait à chaque rejeu de la session; utilisation au passage d'une map pour que la synchronisation avec le reset soit plus rapide). [mod_typing.ml] - Correction d'un bug de synchronisation pour le niveau pattern 200. [pcoq.ml4] - Suppression d'un vieux reste du traducteur [constructeur VernacVar] - Robustesse et uniformité accrue dans CoqIDE vis à vis du statut de chacune des commandes vernaculaires par l'utilisation d'une fonction d'assignation d'attributs à chaque commande vernac. Correction de ce qui semble être des bizarreries (VernacDeclareTacticDefinition considéré comme ouvrant un but; suppression des "loc" dans les Reset: ne pouvait pas faire fonctionner correctement update_on_end_of_segment). Suppression de la nécessité d'expliciter si une commande retourne des messages dépendants du mode "verbose" (on suppose que chaque commande sait ce qu'elle doit dire selon la position du flag verbose). Sinon, le mécanisme de Reset de CoqIDE reste pauvre. CoqIDE ne sait revenir qu'aux états associés à des noms et cela ne vaut pas l'approche de Proof General. Il sera sans doute opportun de se brancher sur l'architecture de Pierre Courtieu à base de "Backtrack". La restriction des buts imbriqués a-t-elle vraiment une raison d'être ? En plus les commandes non cablées en dur comme Next Obligation ne sont pas prises en compte. Interdiction, dès Coq, d'ouvrir sections ou modules si preuve en cours. Réparation approximative de l'option "Help for Keyword" de Coqide mais encore à faire pour plus de robustesse (makefile, installation, synchronisation entre la version du fichier index_urls.txt et la version du refman, ...). git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@10904 85f007b7-540e-0410-9357-904b9bb8a0f7
* Integration of theories/Ints into theories/Numbers, part 3: fixing forgotten ↵Gravatar letouzey2008-05-07
| | | | | | coqinit.ml git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@10901 85f007b7-540e-0410-9357-904b9bb8a0f7
* Postpone the search for the recursive argument index from the user givenGravatar msozeau2008-05-06
| | | | | | | | | | | | | | | | | | | name after internalisation, to get the correct behavior with typeclass binders. This simplifies the pretty printing and translation of the recursive argument name in various places too. Use this opportunity to factorize the different internalization and interpretation functions of binders as well. This definitely fixes part 2 of bug #1846 and makes it possible to use fixpoint definitions with typeclass arguments in program too, with an example given in EquivDec. At the same time, one fix and one enhancement in Program: - fix a de Bruijn bug in subtac_cases - introduce locations of obligations and use them in case the obligation tactic raises a failure when tried on a particular obligation, as suggested by Sean Wilson. git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@10889 85f007b7-540e-0410-9357-904b9bb8a0f7
* Mise en place d'un algorithme d'inversion des contraintes de type lorsGravatar herbelin2008-05-05
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | du filtrage. Cela permet de détecter les cas impossibles et de simuler les contraintes d'inversion exprimables sous la forme d'un assignement des arguments du constructeurs (cf le cas de Vtail dans Bvector.v). Si l'on filtre sur t:I u1 .. un, et que chaque ui a la forme vi(wi) avec vi composé uniquement de constructeurs, et que le résultat final est P(w1,...,wn) (qui est éventuellement lui-même une evar) alors on construit le prédicat Q:=fun x1 .. xn y => match x1 .. xn y with | v1(z) .. vn(z) t => P(z) | _ .. _ _ => ?evar-speciale-cas-impossible end qui vérifiera bien que Q u1 .. un = P(w1,..,wp). En raison de limitations de l'unification (on aurait besoin d'eta conversion pour résoudre des problèmes du genre "terme rigide == match x with _ => ?evar end", et besoin d'instanciation par constructeurs pour des cas comme "A(y) = match ?evar with C x => A(x) end"), je n'ai pas réussi à traiter le cas général. Aussi, on adopte une stratégie pragmatique consistant à tester plusieurs prédicats possibles : - si un type final est donné, on essaie d'abord l'algorithme de Matthieu et sinon le nouvel algorithme (permet par exemple de traiter certains cas d'élimination dépendante de Bvector.v), - s'il n'y a pas de type final, on essaie d'abord le nouvel algo et sinon, on essaie avec un prédicat sans dépendance (permet de traiter des cas compliqués comme celui de par cas sur I' dans le fichier Case13.v de la test-suite). Dans la pratique, il y a beaucoup de changement dans le code de compile_case. - Par exemple, la compilation est maintenant toujours appelé avec un prédicat (là où l'on pouvait avoir None, on a maintenant toujours au moins une evar). - En revanche, le membre droit des clauses est maintenant optionnel. Si c'est None, c'est qu'on se trouve dans le cas d'une branche impossible au moment du calcul du prédicat de retour. - Aussi, on renonce aux PrLetIn et PrProd dans l'expression du predicat de retour mais il faut savoir que c'est maintenant la liste des tomatchs qui spécifie le contexte exact dans lequel le prédicat de retour est bien typé. - Et d'autres... git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@10883 85f007b7-540e-0410-9357-904b9bb8a0f7
* More emacs-friendly error messages.Gravatar glondu2008-05-05
| | | | git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@10882 85f007b7-540e-0410-9357-904b9bb8a0f7
* Petites corrections vis à vis des commits 10860, 10859, 10850Gravatar herbelin2008-04-28
| | | | | | | | | | - pour le "try", la nouvelle erreur CannotFindWellTypedAbstraction doit être catchable - pour accomoder Type -1 dans le discharge, il faut un refresh_universes strict - bugs dans les fichiers de test-suite git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@10861 85f007b7-540e-0410-9357-904b9bb8a0f7
* Quelques bricoles autour de l'unification:Gravatar herbelin2008-04-27
| | | | | | | | | | | | - Un patch pour le bug de non vérification du typage de Stéphane L. - Changement du fameux message "cannot solve a second-order matching problem" en espérant, à défaut de savoir résoudre plus souvent le problème, que le message est plus explicite. - Divers changements cosmétiques. git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@10860 85f007b7-540e-0410-9357-904b9bb8a0f7
* Ajout de "Theorem id1 : t1 ... with idn : tn" pour partager la preuveGravatar herbelin2008-04-25
| | | | | | | | | | | des théorèmes prouvés par récursion ou corécursion mutuelle. Correction au passage du parsing et du printing des tactiques fix/cofix et documentation de ces tactiques. git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@10850 85f007b7-540e-0410-9357-904b9bb8a0f7
* Fix bug #1844, generalize implementation to handle and combination ofGravatar msozeau2008-04-24
| | | | | | | Induction and Minimality schemes. git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@10843 85f007b7-540e-0410-9357-904b9bb8a0f7
* Prise en compte des coercions dans les clauses "with" même si le typeGravatar herbelin2008-04-23
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | de l'argument donné contient des métavariables (souhait #1408). Beaucoup d'infrastructure autour des constantes pour cela mais qu'on devrait pouvoir récupérer pour analyser plus finement le comportement des constantes en général : 1- Pour insérer les coercions, on utilise une transformation (expérimentale) de Metas vers Evars le temps d'appeler coercion.ml. 2- Pour la compatibilité, on s'interdit d'insérer une coercion entre classes flexibles parce que sinon l'insertion de coercion peut prendre précédence sur la résolution des evars ce qui peut changer les comportements (comme dans la preuve de fmg_cs_inv dans CFields de CoRN). 3- Pour se souvenir rapidement de la nature flexible ou rigide du symbole de tête d'une constante vis à vis de l'évaluation, on met en place une table associant à chaque constante sa constante de tête (heads.ml) 4- Comme la table des constantes de tête a besoin de connaître l'opacité des variables de section, la partie tables de declare.ml va dans un nouveau decls.ml. Au passage, simplification de coercion.ml, correction de petits bugs (l'interface de Gset.fold n'était pas assez générale; specialize cherchait à typer un terme dans un mauvais contexte d'evars [tactics.ml]; whd_betaiotazeta avait un argument env inutile [reduction.ml, inductive.ml]) et nettoyage (declare.ml, decl_kinds.ml, avec incidence sur class.ml, classops.ml et autres ...; uniformisation noms tables dans autorewrite.ml). git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@10840 85f007b7-540e-0410-9357-904b9bb8a0f7
* Added frozen state after each command.Gravatar courtieu2008-04-23
| | | | git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@10836 85f007b7-540e-0410-9357-904b9bb8a0f7
* Bug squashing day !Gravatar msozeau2008-04-17
| | | | | | | | | | | | | | | | | - 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. git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@10813 85f007b7-540e-0410-9357-904b9bb8a0f7
* - Add "Global" modifier for instances inside sections with the usualGravatar msozeau2008-04-15
| | | | | | | | | | | | 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). git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@10797 85f007b7-540e-0410-9357-904b9bb8a0f7
* Bugs, nettoyage, et améliorations diversesGravatar herbelin2008-04-13
| | | | | | | | | | | | | | | | | | | | | | - 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 git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@10785 85f007b7-540e-0410-9357-904b9bb8a0f7
* Add the ability to specify what to do with free variables in instanceGravatar msozeau2008-04-12
| | | | | | | | | | | | 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
* Adding 'at' to rewrite, as it is already implemented in setoid_rewrite.Gravatar msozeau2008-04-12
| | | | | | | | | | | 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
* Check that no evars remain in instance types earlier at InstanceGravatar msozeau2008-04-11
| | | | | | | declarations. git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@10779 85f007b7-540e-0410-9357-904b9bb8a0f7
* - A little cleanup in Classes/*. Separate standard morphisms onGravatar msozeau2008-04-08
| | | | | | | | | | | | | | | | | 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
* - Retour en arrière sur la capacité du nouvel apply à utiliser lesGravatar herbelin2008-04-05
| | | | | | | | | | | | | | | | | | | | 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
* Add the ability to specify the implicit status of section variables andGravatar msozeau2008-04-02
| | | | | | | | | | | | whether or not to keep them regardless of the actual dependencies (in order to implement the proper discharge behavior for type classes). This means adding an argument to rebuild_function in libobject, giving this information on variables after a section's constants have been discharged (discharge_function is too early). Surface syntax for Variable not added yet. git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@10741 85f007b7-540e-0410-9357-904b9bb8a0f7
* Ajout des propriétés $Id:$ là où elles n'existaient pas ou n'étaientGravatar herbelin2008-04-01
| | | | | | | | pas correctes git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@10739 85f007b7-540e-0410-9357-904b9bb8a0f7
* Ajout d'abbréviations/notations paramétriquesGravatar herbelin2008-03-30
| | | | | | | | Example: "Notation reflexive R := (forall x, R x x)." git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@10730 85f007b7-540e-0410-9357-904b9bb8a0f7
* Improve error handling and messages for typeclasses. Gravatar msozeau2008-03-28
| | | | | | | | | | | | | | | | | 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
* - Second pass on implementation of let pattern. Parse "let ' par [as x]?Gravatar msozeau2008-03-28
| | | | | | | | | | | | | | | | | | [in I] := t [return pred] in b", just as SSReflect does with let:. Change implementation: no longer a separate AST node, just add a case_style annotation on Cases to indicate it (if ML was dependently typed we could ensure that LetPatternStyle Cases have only one term to be matched and one branch, alas...). This factors out most code and we lose no functionality (win ! win !). Add LetPat.v test suite. - Slight improvement of inference of return clauses for dependent pattern matching. If matching a variable of non-dependent type under a tycon that mentions it while giving no return clause, the dependency will be automatically infered. Examples at the end of DepPat. Should get rid of most explicit returns under tycons. git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@10727 85f007b7-540e-0410-9357-904b9bb8a0f7
* Various fixes on typeclasses:Gravatar msozeau2008-03-27
| | | | | | | | | | | | | | | | | | | - 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
* Finish fix in command where we still lost information on what was a typeGravatar msozeau2008-03-24
| | | | | | | | and needed coercions. Change API of interp_constr_evars to get an optional evar_defs ref argument. Makes Algebra compile again (at least). git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@10715 85f007b7-540e-0410-9357-904b9bb8a0f7
* Fix a bug found by B. Grégoire when declaring morphisms in moduleGravatar msozeau2008-03-23
| | | | | | | | | | | | | | 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. git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@10713 85f007b7-540e-0410-9357-904b9bb8a0f7
* Correct bug introduced in r10589, where we lost information thatGravatar msozeau2008-03-21
| | | | | | | | | | assumption types are types when type-checking them and necessary coercions were not inserted. Add empty_evar_defs definition in Evd and call the new helper function in constrintern that performs interpretation and gives back implicit argument information. git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@10706 85f007b7-540e-0410-9357-904b9bb8a0f7
* some references to IntMap forgotten in last commitGravatar letouzey2008-03-19
| | | | git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@10700 85f007b7-540e-0410-9357-904b9bb8a0f7
* Do another pass on the typeclasses code. Correct globalization of classGravatar msozeau2008-03-19
| | | | | | | | | | | | | | | | | | | | | | | 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)]. git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@10697 85f007b7-540e-0410-9357-904b9bb8a0f7
* * Small change in the make_eq_decidability call : the functions does not (yet)Gravatar vsiles2008-03-18
| | | | | | | | | work on mutual inductive types so if we can't compute it, we discard it but keep the boolean equality declaration which is ok even on mutuals. git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@10688 85f007b7-540e-0410-9357-904b9bb8a0f7
* * Factorizing code : context_chop was used in several files (even as ↵Gravatar vsiles2008-03-17
| | | | | | | | | | | chop_context) so I moved it to termops.ml * Fixing a little bug in the Boolean to Leibniz transition in automatic boolean declaration git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@10686 85f007b7-540e-0410-9357-904b9bb8a0f7
* Do a second pass on the treatment of user-given implicit arguments. NowGravatar msozeau2008-03-15
| | | | | | | | | | | | | | | | | | works in inductive type definitions and fixpoints. The semantics of an implicit inductive parameter is maybe a bit weird: it is implicit in the inductive definition of constructors and the contructor types but not in the inductive type itself (ie. to model the fact that one rarely wants A in vector A n to be implicit but in vnil yes). Example in test-suite/ Also, correct the handling of the implicit arguments across sections. Every definition which had no explicitely given implicit arguments was treated as if we asked to do global automatic implicit arguments on section closing. Hence some arguments were given implicit status for no apparent reason. Also correct and test the parsing rule which disambiguates between {wf ..} and {A ..}. git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@10677 85f007b7-540e-0410-9357-904b9bb8a0f7
* fix the 'decreasing on Xth' messageGravatar letouzey2008-03-13
| | | | git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@10661 85f007b7-540e-0410-9357-904b9bb8a0f7
* * Catching a Not_found exception when trying to use Scheme Equality Gravatar vsiles2008-03-12
| | | | | | | over inductives types using Parameters git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@10658 85f007b7-540e-0410-9357-904b9bb8a0f7
* Une passe sur l'unification des evars (suite aux commits 10124, 10125, 10145)Gravatar herbelin2008-03-10
| | | | | | | | | - Correction bug des filtres dans define_evar_as_abstraction - Nettoyage, documentation et réorganisations diverses git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@10650 85f007b7-540e-0410-9357-904b9bb8a0f7
* Fix bugs that were reopened due to the change of setoidGravatar msozeau2008-03-08
| | | | | | | | | | | | | | | | | | implementation. Mostly syntax changes when declaring parametric relations, but also some declarations were relying on "default" relations on some carrier. Added a new DefaultRelation type class that allows to do that, falling back to the last declared Equivalence relation by default. This will be bound to Add Relation in the next commit. Also, move the "left" and "right" notations in Program.Utils to "in_left" and "in_right" to avoid clashes with existing scripts. Minor change to record to allow choosing the name of the argument for the record in projections to avoid possible incompatibilities. git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@10639 85f007b7-540e-0410-9357-904b9bb8a0f7
* Syntax changes in typeclasses, remove "?" for usual implicit argumentsGravatar msozeau2008-03-06
| | | | | | | | | | | | | | | | | | | | | binding, add "!" syntax for the new binders which require parameters and not superclasses. Change backquotes for curly braces for user-given implicit arguments, following tradition. This requires a hack a la lpar-id-coloneq. Change ident to global for typeclass names in class binders. Also requires a similar hack to distinguish between [ C t1 tn ] and [ c : C t1 tn ]. Update affected theories. While hacking the parsing of { wf }, factorized the two versions of fix annotation parsing that were present in g_constr and g_vernac. Add the possibility of the user optionaly giving the priority for resolve and exact hints (used by type classes). Syntax not fixed yet: a natural after the list of lemmas in "Hint Resolve" syntax, a natural after a "|" after the instance constraint in Instance declarations (ex in Morphisms.v). git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@10628 85f007b7-540e-0410-9357-904b9bb8a0f7
* New instance returns the (future) identifier of the instance.Gravatar msozeau2008-02-26
| | | | git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@10590 85f007b7-540e-0410-9357-904b9bb8a0f7
* Proper implicit arguments handling for assumptionsGravatar msozeau2008-02-26
| | | | | | | | | | (Axiom/Variable...). New tactic clapply to apply unapplied class methods in tactic mode, simple solution to the fact that apply does not work up-to classes yet. Add Functions.v for class definitions related to functional morphisms. git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@10589 85f007b7-540e-0410-9357-904b9bb8a0f7
* Merge with lmamane's private branch:Gravatar lmamane2008-02-22
| | | | | | | | | | - New vernac command "Delete" - New vernac command "Undo To" - Added a few hooks used by new contrib/interface - Beta/incomplete version of dependency generation and dumping git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@10580 85f007b7-540e-0410-9357-904b9bb8a0f7
* Backport Program Instance into Instance. Proper early error message ifGravatar msozeau2008-02-10
| | | | | | | | | | trying to declare an instance with an already existing name. Add possibility of not giving all the fields in Instance declarations, using Refine.refine to generate the subgoals. No control over opacity in this case though... git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@10548 85f007b7-540e-0410-9357-904b9bb8a0f7
* Fix the clrewrite tactic, change Relations.v to work on relations in PropGravatar msozeau2008-02-09
| | | | | | | | | 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. git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@10543 85f007b7-540e-0410-9357-904b9bb8a0f7
* Change implementation of resolution for typeclasses to use a customizedGravatar msozeau2008-02-08
| | | | | | | | eauto instead of an arbitrary tactic. Export more from eauto to allow easier debugging. git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@10534 85f007b7-540e-0410-9357-904b9bb8a0f7
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