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* Rely on a new tactic unify_helper that workarounds the fact
[apply Under.under_done] cannot unify (?G i...) with (expr i...) in
[|- @Under T (expr i...) (?G i...)]
when expr is a constant expression, or has more than one var (i...).
Idea: massage the expression with Ltac to obtain a beta redex.
* Simplify test-suite/ssr/under.v by using TestSuite.ssr_mini_mathcomp
and add a test-case [test_big_andb].
* Summary of commands to quickly test [under]:
$ cd .../coq
$ make plugins/ssr/ssreflect.vo plugins/ssr/ssrfun.vo plugins/ssr/ssrbool.vo
$ cd test-suite
$ touch prerequisite/ssr_mini_mathcomp.v
$ make
$ emacs under.v
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in the particular case where the side-condition is phrased
(_ : @eqfun bool I P1 P2)
instead of
(_ : forall x : I, P1 x = P2 x)
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Supported syntax:
under i: eq_bigr by rewrite adnnC. (* ensure 1 Under subogal is created *)
under i: eq_big by [rewrite adnnC | rewrite addnC]. (* 2 Under subgoals *)
Equivalent, expanded form:
under i: eq_bigr; [rewrite adnnC; over | idtac].
under i: eq_big; [rewrite adnnC; over | rewrite adnnC; over | idtac].
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Both can be use to close the "under goals", in rewrite style or in
closing-tactic style.
Contrarily to the previous implementation that assumed
"over : forall (T : Type) (x : T), @Under T x x <-> True"
this new design won't require the Setoid library.
Extend the test-suite (in test-suite/ssr/under.v)
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Rename the bound variables of the last (lambda) argument of the redex
w.r.t. the varnames specified by the user.
Co-authored-by: Erik Martin-Dorel <erik.martin-dorel@irit.fr>
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Still to do: renaming the bound variables afterwards
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(Note: coq notations cannot contain \n)
Co-authored-by: Enrico Tassi <Enrico.Tassi@inria.fr>
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* If this flag under=true: enable flag with_evars of refine_with
to create evar(s) if the "under lemma" has non-inferable args.
* Backward compatibility of ssr rewrite is kept.
* Fix test-suite/ssr/dependent_type_err.v
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#9615)
Reviewed-by: Zimmi48
Ack-by: fajb
Reviewed-by: vbgl
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- Improved reification for Micromega (support for #8764)
- Fixes #9268: Do not take universes into account in lia reification
Improve #9291 by threading the evar_map during reification.
Universes are unified.
- Remove (potentially cyclic) dependency over lra for Rle_abs
- Towards a complete simplex-based lia
fixes #9615
Lia is now exclusively using cutting plane proofs.
For this to always work, all the variables need to be positive.
Therefore, lia is pre-processing the goal for each variable x
it introduces the constraints x = y - z , y>=0 , z >= 0
for some fresh variable y and z.
For scalability, nia is currently NOT performing this pre-processing.
- Lia is using the FSet library
manual merge of commit #230899e87c51c12b2f21b6fedc414d099a1425e4
to work around a "leaked" hint breaking compatibility of eauto
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Instead of just string (and empty strings for tokens without payload)
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(warn if bar is a nonprimitive projection)
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In that case the terminator and proof object have to be supplied in
the ?proof argument, or else we get an anomaly.
Co-authored-by: Maxime Dénès <mail@maximedenes.fr>
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We add state handling to tactics.
TODO:
- [rewrite] `add_morphism_infer` creates problems as it opens a proof.
- [g_obligations] with_tac
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Ack-by: gares
Ack-by: maximedenes
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Eliminators can be:
- dependent: ... -> forall x (y : I x), P x y
- truncated: ... -> forall x (y : I x), P x
- funind like: ..-> forall x, P t
The user may provide a term t in `elim: t`
- t may be the last argument
- t may be the last "pattern" (standing for the last
argument of P)
We use unification to see if t (and its type) fits
in one of these cases (and/or to infer t).
This patch refuses to use unification in the HO case
eg `?T a = t` since the result is too often a false
positive.
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This should make https://github.com/coq/coq/pull/9129 easier.
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Reviewed-by: ejgallego
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Ack-by: JasonGross
Ack-by: SkySkimmer
Reviewed-by: Zimmi48
Reviewed-by: ejgallego
Ack-by: gares
Ack-by: mattam82
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Unknown impact so no tests.
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Prevent errors when under annotating binders.
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Kernel should be mostly correct, higher levels do random stuff at
times.
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Note currently it's impossible to define inductives in SProp because
indtypes.ml and the pretyper aren't fully plugged.
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Reviewed-by: SkySkimmer
Reviewed-by: Zimmi48
Reviewed-by: ejgallego
Ack-by: gares
Ack-by: jashug
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Ack-by: gares
Ack-by: herbelin
Ack-by: mattam82
Ack-by: ppedrot
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Reviewed-by: SkySkimmer
Reviewed-by: gares
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It used to simply remember the normal form of the type of the constructor.
This is somewhat problematic as this is ambiguous in presence of
let-bindings. Rather, we store this data in a fully expanded way, relying
on rel_contexts.
Probably fixes a crapload of bugs with inductive types containing
let-bindings, but it seems that not many were reported in the bugtracker.
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Deprecate the old syntax.
The documented syntax was using a with clause which is more standard with a hint database
than the using clause that was actually implemented.
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This is intended to be separate from handling of implicit binders.
The remaining uses of declare_manual_implicits satisfy a lot of
assertions, giving the possibility of simplifying the interface in the
future.
Two disabled warnings are added for things that currently pass silently.
Currently only Mtac passes non-maximal implicits to
declare_manual_implicits with the force-usage flag set. When implicit
arguments don't have to be named, should move Mtac over to
set_implicits.
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Supersedes #8718.
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Reviewed-by: ejgallego
Ack-by: herbelin
Reviewed-by: mattam82
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