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Was broken since 8.6.
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(clause "where" with implicit arguments)
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unbound rel
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This should help debug things like
https://github.com/coq/coq/issues/5675#issuecomment-345324924 if they
ever show up again.
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local definitions)
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Fixes #6165.
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When an evar is undefined we need to substitute inside the evar instance.
With help from @herbelin and @psteckler to identify the issue from a
large test case.
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We improve one step further the heuristics to sort out if a variable
is a notation variable or a named variable.
This allows to support the following which was still failing.
Reserved Notation "# x" (at level 0).
Inductive I {A:Type} := C : # 0 -> I where "# I" := (I = I).
We rely here on the property that a binding variable of same name as a
notation variables is itself considered bound by the notation.
This becomes however to be a bit tricky for sorting out if the
variable has to be output to the glob file or not.
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The file links.v is using utf-8 characters so this is needed at least
to test this file. For the other files, it is not completely without
effect since it makes that symbols like => and forall are respectively
displayed ⇒ and ∀.
Maybe tests with iso-8859-1 or test without a charset option should be
kept.
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PR #1120 was still buggy for the following reasons: variables in the
lhs of the notation were linked in the glob file while they have
nowhere to link to (the binder is the notation string) [I thought the
change I commited in links.html.out was actually improving but it was
an overlook, sorry.]
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The two lines that this commit remove are spurious as a `git clean -dfx || true`
is already performed in `test-suite/coq-makefile/template/init.sh`.
While this resolves the accidental dependency on git, I am still unhappy with
this call of `git clean -dfx`.
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alphabet).
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We refine the criterion for selecting a projection. Before PR#924 it
was alphabetic (i.e. morally "random" up to alpha-conversion). After
PR#924 it was chronological.
We refine a bit more by giving priority to simple projections when
they exist over projections which include an evar instantiation (and
which may actually be ill-typed).
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Adding a file fixing #5996 and which uses this feature.
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variables).
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This concerns pr_value and message_of_value.
This has a few consequences. For instance, no more ad hoc message "a
term" or "a tactic", when not enough information is available for
printing, one gets a generic message "a value of type foobar".
But we also have more printers, satisfying e.g. request #5786.
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We fix by interpreting the pattern in "change pat with term" in strict
mode by using the same interning code as for "match goal" (even if the
pattern is dropped afterwards).
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This fixes also #5731, #6035, #5364.
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ML level can set the flags themselves.
In particular, using injection and discriminate with option "Keep
Proofs Equalities" when called from "decide equality" and "Scheme
Equality".
This fixes bug #5281.
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clause of an inductive definitions
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This should (hopefully) fix #5675.
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Compared to the original proposition (59a594b in #960), this commit
only changes files containing bug numbers that are also PR numbers.
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The test suite cases are preserved until the feature is actually removed.
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Also add an output test for Suggest Proof Using.
This changes the .aux output: instead of getting a key
>context_used "$hyps;$suggest"
where $hyps is a list of the used hypotheses and $suggest is the
;-separated suggestions (or the empty string if Suggest Proof Using is
unset), there is a key
>context_used "$hyps"
and if Suggest Proof Using is set also a key
>suggest_proof_using "$suggest"
For instance instead of
112 116 context_used "B A;A B;All"
we get
112 116 context_used "B A"
112 116 suggest_proof_using "A B;All"
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Morphism` forms.
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printing-ony Notations
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"_something")
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inductive definition)
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BZ#4852)
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The manual has long stated that these forms are deprecated. We add a
warning for them, as indeed `Add Morphism` is an "proof evil" [*]
command, and we may want to remove it in the future.
We've also fixed the stdlib not to emit the warning.
[*] https://ncatlab.org/nlab/show/principle+of+equivalence
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When a context variable x is of the form "x := body : Z",
romega is now made aware of this body. Technically, we reify an equation
x = body, and push a corresponding (eq_refl x) as argument of the
final do_omega.
See also the previous commit adding this same feature to omega
(fixing bug 142).
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148)
For compatibility, this extra feature of omega could be disabled via
Unset Omega UseLocalDefs.
Caveat : for now, real let-ins inside goals or hyps aren't handled, use
some "cbv zeta" reduction if you want to get rid of them. And context
definitions whose types aren't Z or nat are ignored, some manual "unfold"
are still mandatory if expanding these definitions will help omega.
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