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It was only required in the (not realistic) test case "test_over_2_2",
which happened to introduce evars after the context variables.
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* "under"-specific behavior:
the order of goals is kept even if one issues
Global Set SsrOldRewriteGoalsOrder.
* href: https://github.com/math-comp/math-comp/blob/mathcomp-1.7.0/mathcomp/ssreflect/ssreflect.v
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As a result, the following:
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 *)
amounts to:
under i: eq_bigr; [rewrite adnnC; over | cbv beta iota].
under i: eq_big; [rewrite adnnC; over | rewrite adnnC; over | cbv beta iota].
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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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Ack-by: SkySkimmer
Reviewed-by: Zimmi48
Reviewed-by: ejgallego
Reviewed-by: gares
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We make clearer which arguments are optional and which are mandatory.
Some of these representations are tricky because of small differences
between Program and Function, which share the same infrastructure.
As a side-effect of this cleanup, Program Fixpoint can now be used with
e.g. {measure (m + n) R}. Previously, parentheses were required around
R.
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Not sure if the idetop.set_options was correctly changed, ocaml types
pass at least.
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I had to reorganize the code a bit. The Context command moved to
comAssumption, as it is not so related to type classes. We were able to
remove a few hooks on the way.
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One other call still remains, but will require to refactor some
section-handling code.
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Reviewed-by: Zimmi48
Reviewed-by: ejgallego
Ack-by: gares
Ack-by: herbelin
Ack-by: ppedrot
Ack-by: proux01
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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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Ack-by: JasonGross
Reviewed-by: ppedrot
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RealField.v is slightly modified so that the ring/field tactics
consider the term (IZR (Z.pow_pos 10 _)) produced when parsing
exponents as constants.
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Rather than integers '[0-9]+', numeral constant can now be parsed
according to the regexp '[0-9]+ ([.][0-9]+)? ([eE][+-]?[0-9]+)?'.
This can be used in one of the two following ways:
- using the function `Notation.register_rawnumeral_interpreter` in an OCaml plugin
- using `Numeral Notation` with the type `decimal` added to `Decimal.v`
See examples of each use case in the next two commits.
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In anticipation of future uses of this token for non integer numerals.
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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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