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* Improved strategy for rewriting lemma possibly depending because of evars.Gravatar herbelin2009-12-14
| | | | | | | | Explained in CHANGES how to cope with the change of semantics of abbreviations wrt implicit arguments positions propagation. git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@12586 85f007b7-540e-0410-9357-904b9bb8a0f7
* Made the side-conditions of lemmas always come last when chaining "apply in"Gravatar herbelin2009-12-13
| | | | | | | in presence of destruction of conjunctive types. git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@12584 85f007b7-540e-0410-9357-904b9bb8a0f7
* Completion of r12580 (better rendering of dependent rewrite and inversion).Gravatar herbelin2009-12-13
| | | | git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@12583 85f007b7-540e-0410-9357-904b9bb8a0f7
* Revision 12557 continued (better rendering of dependent rewrite)Gravatar herbelin2009-12-13
| | | | | | (expected goal was not correct for rewriting in hypotheses) git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@12580 85f007b7-540e-0410-9357-904b9bb8a0f7
* Updated compatibility for rewriting equality proofs that are dependentGravatar herbelin2009-12-12
| | | | | | | | | | - made the new "subst'" the default by renaming it "subst"; - renamed old "subst" into "simple subst"; - add option for non-rewriting of dependent proofs in general_rewrite and co - kept use of dependent proofs in the "subst" call of "functional induction", in spite it introduced incompatibilities (in Compcert). git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@12578 85f007b7-540e-0410-9357-904b9bb8a0f7
* Improved the rendering of "dependent rewrite" and hence of "inversion"Gravatar herbelin2009-12-12
| | | | | | by contracting in advance the projT (existT ...) redexes. git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@12577 85f007b7-540e-0410-9357-904b9bb8a0f7
* Turn evars created by a tactic application into a subgoal immediately inGravatar msozeau2009-12-06
| | | | | | | | | typeclass resolution. Makes the backtracking heuristic correct again and avoids "late" backtracking on an unsolvable existential. Compilation time is back to normal. git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@12564 85f007b7-540e-0410-9357-904b9bb8a0f7
* Fix anomaly when using typeclass resolution with filtered hyps in evars.Gravatar msozeau2009-12-06
| | | | | | | | | | Make setoid_rewrite-through-rewrite's selection of occurences more robust: do not try unification with reduction if not needed. This changes a few scripts that were using reduction in a far from obvious way and could break more. git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@12562 85f007b7-540e-0410-9357-904b9bb8a0f7
* Restored rewriting of JMeq using JMeq_rect and co when the domains are the sameGravatar herbelin2009-12-03
| | | | | | (this was lost since revision 12481). git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@12560 85f007b7-540e-0410-9357-904b9bb8a0f7
* Fix make_exact_entry to allow applying [forall x, P x] hints directly,Gravatar msozeau2009-12-01
| | | | | | | | | avoiding the introduction of eta-redexes. Prioritize hints over intros in typeclass resolution to profit from that. Add a minor fix in coqdoc by F. Garillot. git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@12550 85f007b7-540e-0410-9357-904b9bb8a0f7
* Fix bug in typeclass resolution. Better handling of universes inGravatar msozeau2009-12-01
| | | | | | | the generalization tactic. git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@12548 85f007b7-540e-0410-9357-904b9bb8a0f7
* Fix backtracking heuristic in typeclass resolution. Gravatar msozeau2009-11-30
| | | | | | | | | | | | Now that backtracking is working correctly, we need to avoid a non-termination issue introduced by the [RelCompFun] definition in RelationPairs, by adding a [Measure] typeclass. It could be used to have a uniform notation for measures/interpretations in Numbers and be but in the interfaces too, only the mimimal change was implemented. Fix syntax change in test-suite scripts. git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@12547 85f007b7-540e-0410-9357-904b9bb8a0f7
* Substitute terms for evars-as-goals as soon as they are solved inGravatar msozeau2009-11-27
| | | | | | | typeclass resolution. Fixes a bug reported by Eelis van der Weegen. git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@12545 85f007b7-540e-0410-9357-904b9bb8a0f7
* Minor fixes in typeclasses, avoiding repeated evar normalizations.Gravatar msozeau2009-11-24
| | | | | | | | | | | Improve generalization by equalities tactic, now allowing to generalize an arbitrary application, e.g. in preparation for applying an elimination principle for a function. This adds a flag to generalize_dep so that it doesn't abstract the variable if it is defined, just introducing a let-in. git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@12541 85f007b7-540e-0410-9357-904b9bb8a0f7
* Lazier behaviour of [auto] when introducing hypothesis: query the hint db's ↵Gravatar puech2009-11-21
| | | | | | only when necessary. Hopefully should speed up [auto] a little. git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@12538 85f007b7-540e-0410-9357-904b9bb8a0f7
* Addendum to revision 12501.Gravatar herbelin2009-11-12
| | | | git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@12505 85f007b7-540e-0410-9357-904b9bb8a0f7
* Promote evar_defs to evar_map (in Evd)Gravatar glondu2009-11-11
| | | | git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@12502 85f007b7-540e-0410-9357-904b9bb8a0f7
* Backtracking on the use of automatically generated schemes forGravatar herbelin2009-11-11
| | | | | | | | | "eq"-rewriting (a few contributions are still referring explicitly to eq_rect, eq_ind and co and the new mechanism, though working also for dependent rewriting, is not powerful enough in general wrt fixpoint guard to claim being uniformly better). git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@12501 85f007b7-540e-0410-9357-904b9bb8a0f7
* Compatibility ocaml <= 3.09Gravatar herbelin2009-11-10
| | | | git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@12493 85f007b7-540e-0410-9357-904b9bb8a0f7
* A bit of cleaning around name generation + creation of dedicated file namegen.mlGravatar herbelin2009-11-09
| | | | git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@12485 85f007b7-540e-0410-9357-904b9bb8a0f7
* Quick fix for restoring a left-to-right rewriting lemma compatibleGravatar herbelin2009-11-09
| | | | | | | with the guard condition + typo in the generation of _rec schemes in the impredicative case. git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@12484 85f007b7-540e-0410-9357-904b9bb8a0f7
* Restructuration of command.ml + generic infrastructure for inductive schemesGravatar herbelin2009-11-08
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - Cleaning and uniformisation in command.ml: - For better modularity and better visibility, two files got isolated out of command.ml: - lemmas.ml is about starting and saving a proof - indschemes.ml is about declaring inductive schemes - Decomposition of the functions of command.ml into a functional part and the imperative part - Inductive schemes: - New architecture in ind_tables.ml for registering scheme builders, and for sharing and generating on demand inductive schemes - Adding new automatically generated equality schemes (file eqschemes.ml) - "_congr" for equality types (completing here commit 12273) - "_rew_forward" (similar to vernac-level eq_rect_r), "_rew_forward_dep", "_rew_backward" (similar to eq_rect), "_rew_backward_dep" for rewriting schemes (warning, rew_forward_dep cannot be stated following the standard Coq pattern for inductive types: "t=u" cannot be the last argument of the scheme) - "_case", "_case_nodep", "_case_dep" for case analysis schemes - Preliminary step towards discriminate and injection working on any equality-like type (e.g. eq_true) - Restating JMeq_congr under the canonical form of congruence schemes - Renamed "Set Equality Scheme" into "Set Equality Schemes" - Added "Set Rewriting Schemes", "Set Case Analysis Schemes" - Activation of the automatic generation of boolean equality lemmas - Partial debug and error messages improvements for the generation of boolean equality and decidable equality - Added schemes for making dependent rewrite working (unfortunately with not a fully satisfactory design - see file eqschemes.ml) - Some names of ML function made more regular (see dev/doc/changes.txt) - Incidentally, added a flush to obsolete Local/Global syntax warning git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@12481 85f007b7-540e-0410-9357-904b9bb8a0f7
* - Fix discharge bug in typeclasses: some constrs were not actuallyGravatar msozeau2009-11-06
| | | | | | | | | discharged on the other definitions in the section. - Avoid universe problem in generalize_eqs were we could give an [@eq_refl Set x x] proof where an [@eq Type x x] was expected. git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@12478 85f007b7-540e-0410-9357-904b9bb8a0f7
* Misc fixes.Gravatar msozeau2009-11-06
| | | | | | | | | | | | | | - 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. git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@12474 85f007b7-540e-0410-9357-904b9bb8a0f7
* Fixed record syntax "{|x=...; y=...|}" so that it works with qualified names.Gravatar gmelquio2009-11-04
| | | | | | | Fixed pretty printing of record syntax. Allowed record syntax inside patterns. (Patch by Cedric Auger.) git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@12468 85f007b7-540e-0410-9357-904b9bb8a0f7
* Integrate a few improvements on typeclasses and Program from the equations ↵Gravatar msozeau2009-10-28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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. git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@12440 85f007b7-540e-0410-9357-904b9bb8a0f7
* Clarification in commentsGravatar glondu2009-10-28
| | | | git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@12437 85f007b7-540e-0410-9357-904b9bb8a0f7
* Remove old compatibility stuff (Tacred.nf)Gravatar glondu2009-10-28
| | | | git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@12436 85f007b7-540e-0410-9357-904b9bb8a0f7
* Make usage of Dyn explicitGravatar glondu2009-10-28
| | | | git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@12435 85f007b7-540e-0410-9357-904b9bb8a0f7
* Backport fix for indexing of sorts which collapse every Type occurrenceGravatar msozeau2009-10-28
| | | | | | | into a SortLabel None. git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@12434 85f007b7-540e-0410-9357-904b9bb8a0f7
* Fixes around typeclasses:Gravatar msozeau2009-10-27
| | | | | | | | | | | | | | - Correct discharge/classify/rebuild for instances. Semantic of Global/Local: local by default in sections, global by default in modules. - Fix the discrimination net's handling of type universes, let the unification do it. - Correct the typeclass resolution tactic so that when extern tactics themselves launch class resolution we don't duplicate work. Problem reported by Arthur Chargueraud. git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@12427 85f007b7-540e-0410-9357-904b9bb8a0f7
* fix previous commitGravatar corbinea2009-10-27
| | | | git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@12424 85f007b7-540e-0410-9357-904b9bb8a0f7
* fixed czar bug with parametric inductivesGravatar corbinea2009-10-27
| | | | git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@12423 85f007b7-540e-0410-9357-904b9bb8a0f7
* New cleaning phase of the Local/Global option managementGravatar herbelin2009-10-26
| | | | | | | | | - Clarification and documentation of the different styles of Local/Global modifiers in vernacexpr.ml - Addition of Global in sections for Open/Close Scope. - Addition of Local for Ltac when not in sections. git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@12418 85f007b7-540e-0410-9357-904b9bb8a0f7
* Restore (and test) broken chaining of lemmas in "apply in" in presenceGravatar herbelin2009-10-25
| | | | | | | | | of side conditions. Fix a small presentation issue in printing the "exists" tactic. git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@12416 85f007b7-540e-0410-9357-904b9bb8a0f7
* Add support for remaining side-conditions in "apply in as".Gravatar herbelin2009-10-25
| | | | | | | | | Tolerate that the place where to move an hypothesis with destruct is not "safe" if the lemma has dependent parameters inferred lately. git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@12412 85f007b7-540e-0410-9357-904b9bb8a0f7
* Improved the treatment of Local/Global options (noneffective Local onGravatar herbelin2009-10-25
| | | | | | | | | | | | Implicit Arguments, Arguments Scope and Coercion fixed, noneffective Global in sections for Hints and Notation detected). Misc. improvements (comments + interpretation of Hint Constructors + dev printer for hint_db). git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@12411 85f007b7-540e-0410-9357-904b9bb8a0f7
* Fixing XML doc (COQ_XML not working as an environment variable).Gravatar herbelin2009-10-24
| | | | | | | Fixing English grammar in inversion error message (reported in bug #2164). git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@12409 85f007b7-540e-0410-9357-904b9bb8a0f7
* First debug... the renaming of librairies was not working and auto/dn were ↵Gravatar soubiran2009-10-23
| | | | | | not taking in account equivalent names of inductive types. git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@12408 85f007b7-540e-0410-9357-904b9bb8a0f7
* This big commit addresses two problems:Gravatar soubiran2009-10-21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 1- Management of the name-space in a modular development / sharing of non-logical objects. 2- Performance of atomic module operations (adding a module to the environment, subtyping ...). 1- There are 3 module constructions which derive equalities on fields from a module to another: Let P be a module path and foo a field of P Module M := P. Module M. Include P. ... End M. Declare Module K : S with Module M := P. In this 3 cases we don't want to be bothered by the duplication of names. Of course, M.foo delta reduce to P.foo but many non-logical features of coq do not work modulo conversion (they use eq_constr or constr_pat object). To engender a transparent name-space (ie using P.foo or M.foo is the same thing) we quotient the name-space by the equivalence relation on names induced by the 3 constructions above. To implement this, the types constant and mutual_inductive are now couples of kernel_names. The first projection correspond to the name used by the user and the second projection to the canonical name, for example the internal name of M.foo is (M.foo,P.foo). So: ************************************************************************************* * Use the eq_(con,mind,constructor,gr,egr...) function and not = on names values * ************************************************************************************* Map and Set indexed on names are ordered on user name for the kernel side and on canonical name outside. Thus we have sharing of notation, hints... for free (also for a posteriori declaration of them, ex: a notation on M.foo will be avaible on P.foo). If you want to use this, use the appropriate compare function defined in name.ml or libnames.ml. 2- No more time explosion (i hoppe) when using modules i have re-implemented atomic module operations so that they are all linear in the size of the module. We also have no more unique identifier (internal module names) for modules, it is now based on a section_path like mechanism => we have less substitutions to perform at require, module closing and subtyping but we pre-compute more information hence if we instanciate several functors then we have bigger vo. Last thing, the checker will not work well on vo(s) that contains one of the 3 constructions above, i will work on it soon... git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@12406 85f007b7-540e-0410-9357-904b9bb8a0f7
* Fix bug in typeclass resolution discoverd by Eeelis van der Weegen:Gravatar msozeau2009-10-15
| | | | | | | | the wrong evar_defs was used when checking if an evar was to be resolved or not. git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@12390 85f007b7-540e-0410-9357-904b9bb8a0f7
* Relaxed error severity when encountering unknown library objects or tacticGravatar gmelquio2009-10-06
| | | | | | | extensions. This makes it possible to load .vo compiled with a nonstandard toplevel, e.g. ssreflect, which defines new tactics and new hint databases. git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@12375 85f007b7-540e-0410-9357-904b9bb8a0f7
* Correctly do backtracking during type class resolution even if only newGravatar msozeau2009-10-05
| | | | | | | | | | existentials are generated (at last!). The code simply keeps failure continuations and apply them if needed. Fix bottomup and topdown rewrite strategies that looped. Use auto introduction flag for typeclass instances as well. git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@12374 85f007b7-540e-0410-9357-904b9bb8a0f7
* Changed the way to support compatibility with previous versions.Gravatar herbelin2009-10-04
| | | | | | | | Compatibility version is now a global parameter that every feature can individually browse. This avoids having to keep the names of options synchronous in their respective files and in now-removed file coqcompat.ml. git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@12372 85f007b7-540e-0410-9357-904b9bb8a0f7
* Removal of trailing spaces.Gravatar serpyc2009-10-04
| | | | git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@12371 85f007b7-540e-0410-9357-904b9bb8a0f7
* Added option "Unset Dependent Propositions Elimination" to protectGravatar herbelin2009-10-03
| | | | | | | | | | against the incompatibilities introduced by making "destruct" working on dependent propositions (incompatibilities come from uses of destruct in Ltac definitions such as "destruct_conjs"). git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@12367 85f007b7-540e-0410-9357-904b9bb8a0f7
* Remove legacy export_* functionsGravatar glondu2009-09-29
| | | | git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@12365 85f007b7-540e-0410-9357-904b9bb8a0f7
* Apply "Declare Implicit Tactic" also to terms interpreted as "openGravatar herbelin2009-09-27
| | | | | | | | | terms". Let's hope the different instantiation mechanisms (implicit tactic, type classes, information coming from the with clause, ...) will combine not to badly. git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@12361 85f007b7-540e-0410-9357-904b9bb8a0f7
* Fixed a bug in the interaction between dEqThen and inject_at_positionsGravatar herbelin2009-09-27
| | | | | | | | | | | | | which was disturbing inversion and sometimes making it failing in presence of dependent equalities (injection still doesn't know how to split dependent equalities, resulting in a smaller number of equalities than expected for dEqThen). [also restored inv.ml as it was before 12356 which uselessly and inadvertently modified it] git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@12360 85f007b7-540e-0410-9357-904b9bb8a0f7
* Delay the choice of eliminator in destruct/induction until we know ifGravatar herbelin2009-09-27
| | | | | | | | | | | | | a dependent scheme is needed or not (this allows for instance "destruct H" when H is propositional and dependent in the context to work). Modest attempt to clarify the basic components used and invariants preserved when sharing the code for functional induction and for destruct/induction. git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@12356 85f007b7-540e-0410-9357-904b9bb8a0f7
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