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git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@12380 85f007b7-540e-0410-9357-904b9bb8a0f7
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git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@12337 85f007b7-540e-0410-9357-904b9bb8a0f7
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is true. E.g. "decide (eq_nat_dec n 0) with H" on
H: n=0 |- (if eq_nat_dec n 0 then 1 else 2) = 1
returns
H: n=0 |- 1 = 1 .
git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@12291 85f007b7-540e-0410-9357-904b9bb8a0f7
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- theories: made a hint database with the constructor of eq_true
- coqide: binding F5 to About dans coqide + made coqide aware of
string interpretation inside comments
- lexer: added warning when ending comments inside a strings itself in a comment
- xlate: completed patten-matching on IntroForthComing
git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@12217 85f007b7-540e-0410-9357-904b9bb8a0f7
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and, with a now generic intropattern "[]", also "as []_eqn", "as []_eqn:H"
for "destruct" with equality keeping.
- Fixed an accuracy loss in error location.
git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@11732 85f007b7-540e-0410-9357-904b9bb8a0f7
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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.
git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@11721 85f007b7-540e-0410-9357-904b9bb8a0f7
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automation.
- Permitted to use evars in the intermediate steps of "apply in" (as expected
in the test file apply.v).
- Back on the systematic use of eq_rect (r11697) for implementing
rewriting (some proofs, especially lemma DistOoVv in
Lyon/RulerCompassGeometry/C14_Angle_Droit.v and tactic compute_vcg in
Sophia-Antipolis/Semantics/example2.v are explicitly refering
to the name of the lemmas used for rewriting).
- Fixed at the same time a bug in get_sort_of (predicativity of Set was not
taken into account).
git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@11717 85f007b7-540e-0410-9357-904b9bb8a0f7
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- 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
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- 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
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- Ajout clause "in" à "remember" (et passage du code en ML).
- Ajout clause "in" à "induction"/"destruct" qui, en ce cas, ajoute
aussi une égalité pour se souvenir du terme sur lequel l'induction
ou l'analyse de cas s'applique.
- Ajout "pose t as id" en standard (Matthieu: j'ai enlevé celui de
Programs qui avait la sémantique de "pose proof" tandis que le nouveau
a la même sémantique que "pose (id:=t)").
- Un peu de réorganisation, uniformisation de noms dans Arith, et
ajout EqNat dans Arith.
- Documentation tactiques et notations de tactiques.
git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@11072 85f007b7-540e-0410-9357-904b9bb8a0f7
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syntaxe interne de ring_lookup et field_lookup qui n'était pas assez
robuste pour supporter une syntaxe [ ... ] dans constr.
Déplacement de now_show de List.v vers Tactics.v, déplacement de "[ _ ]"
au niveau 0.
git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@10872 85f007b7-540e-0410-9357-904b9bb8a0f7
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git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@10771 85f007b7-540e-0410-9357-904b9bb8a0f7
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* "f_equal" is now a tactic in ML (placed alongside congruence since
it uses it). Normally, it should be completely compatible with the
former Ltac version, except that it doesn't suffer anymore from the
"up to 5 args" earlier limitation.
* "revert" also becomes an ML tactic. This doesn't bring any real
improvement, just some more uniformity with clear and generalize.
* The experimental "narrow" tactic is removed from Tactics.v, and
replaced by an evolution of the old & undocumented "specialize"
ML tactic:
- when specialize is called on an hyp H, the specialization is
now done in place on H. For instance "specialize (H t u v)"
removes the three leading forall of H and intantiates them by
t u and v.
- otherwise specialize still works as before (i.e. as a kind of
generalize).
See the RefMan and test-suite/accept/specialize.v for more infos.
Btw, specialize can still accept an optional number for specifying
how many premises to instantiate. This number should normally
be useless now (some autodetection mecanism added). Hence this
feature is left undocumented. For the happy few still using
specialize in the old manner, beware of the slight incompatibities...
* finally, "contradict" is left as Ltac in Tactics.v, but it has
now a better shape (accepts unfolded nots and/or things in Type),
and also some documentation in the RefMan
git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@10637 85f007b7-540e-0410-9357-904b9bb8a0f7
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more general.
git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@10295 85f007b7-540e-0410-9357-904b9bb8a0f7
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of Zdiv
Some details:
- ZAux.v is the only file left in Ints/Z. The few elements that remain in it
are rather specific or compatibility oriented. Others parts and files have
been either deleted when unused or pushed into some place of ZArith.
- Ints/List/ is removed since it was not needed anymore
- Ints/Tactic.v disappear: some of its tactic were unused, some already in
Tactics.v (case_eq, f_equal instead of eq_tac), and the nice contradict
has been added to Tactics.v
- Znumtheory inherits lots of results about Zdivide, rel_prime, prime, Zgcd, ...
- A new file Zpow_facts inherits lots of results about Zpower. Placing them
into Zpower would have been difficult with respect to compatibility
(import of ring)
- A few things added to Zmax, Zabs, Znat, Zsqrt, Zeven, Zorder
- Adequate adaptations to Ints/num/* (mainly renaming of lemmas)
Now, concerning Zdiv, the behavior when dividing by a negative number is now
fully proved. When this was possible, existing lemmas has been extended,
either from strictly positive to non-zero divisor, or even to arbitrary
divisor (especially when playing with Zmod). These extended lemmas are named
with the suffix _full, whereas the original restrictive lemmas are retained
for compatibility. Several lemmas now have shorter proofs (based on unicity
lemmas). Lemmas are now more or less organized by themes (division and order,
division and usual operations, etc). Three possible choices of spec for
divisions on negative numbers are presented: this Zdiv, the ocaml approach
and the remainder-always-positive approach. The ugly behavior of Zopp
with the current choice of Zdiv/Zmod is now fully covered. A embryo of
division "a la Ocaml" is given: Odiv and Omod.
git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@10291 85f007b7-540e-0410-9357-904b9bb8a0f7
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H: forall (n:nat)(b:bool), P n b
then "narrow H with 0 true" will leave H: P 0 true.
The name for this tactic should ideally be "specialize", but this one
already exists (old stuff, same idea but no "in place" modification,
not documented anymore, still used in users contribs).
git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@10283 85f007b7-540e-0410-9357-904b9bb8a0f7
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Added a tactic "now" which is nonrecursive but generalizes "trivial".
git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@9884 85f007b7-540e-0410-9357-904b9bb8a0f7
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committing the extension of the general sequence operator.
git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@9743 85f007b7-540e-0410-9357-904b9bb8a0f7
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(apply -> H, etc.), which prevented Coq compilation.
These tactics require an extension of syntax: t1; [t2 | .. ],
which has to be submitted first.
git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@9739 85f007b7-540e-0410-9357-904b9bb8a0f7
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"apply -> t", "apply <- t", "apply -> t in H" and "apply <- t in H" .
Also added the tactic false_hyp based on absurd_hyp.
git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@9737 85f007b7-540e-0410-9357-904b9bb8a0f7
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Tactic Notation acceptant des listes en entrée avec application à la
définition de revert dans Tactics.v.
git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@9159 85f007b7-540e-0410-9357-904b9bb8a0f7
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aux niveaux syntaxiques des tacticielles
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