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by contracting in advance the projT (existT ...) redexes.
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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
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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.
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(this was lost since revision 12481).
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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
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the generalization tactic.
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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
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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
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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.
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only when necessary. Hopefully should speed up [auto] a little.
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"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).
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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
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- 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
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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
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- 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
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Fixed pretty printing of record syntax.
Allowed record syntax inside patterns. (Patch by Cedric Auger.)
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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
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into a SortLabel None.
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- 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
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- 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
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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
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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
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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
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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
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not taking in account equivalent names of inductive types.
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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
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the wrong evar_defs was used when checking if an evar was to be resolved
or not.
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extensions. This makes it possible to load .vo compiled with a nonstandard
toplevel, e.g. ssreflect, which defines new tactics and new hint databases.
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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.
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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.
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against the incompatibilities introduced by making "destruct" working
on dependent propositions (incompatibilities come from uses of
destruct in Ltac definitions such as "destruct_conjs").
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terms". Let's hope the different instantiation mechanisms (implicit
tactic, type classes, information coming from the with clause, ...)
will combine not to badly.
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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]
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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.
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statically unbound variables (revealed by an assert failure in
Tacinterp.subst_rawconstr_and_expr). In particular, tauto's use of
name "id" was bypassing the globalization phase (apparently in an safe
way though).
Added a new kind of anomaly usable in case an anomaly results of an
unexpected exception.
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- make hyps rigid in the dnet if they're not let-ins
- use existing typeclass-related transparency information for the new
hints.
Make the dnet better by indexing products, lambdas and sorts too.
git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@12350 85f007b7-540e-0410-9357-904b9bb8a0f7
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instantiated in tactics (here apply and apply in) that should not open
existential goals (see Bas Spitters' coq-club mail about "exists" leaving
open existentials).
- Preserved the history of the evars occurring in bindings.
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