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Reported By: J. Ian Johnson
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This way, [fun A (P : A -> Prop) (X : sigT P) => proj1_sig X] unifies
with [fun A (P : A -> Prop) (X : sigT P) => projT1 X].
This closes Bug 3043.
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particular
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new Axiom in Logic.v, proof_admitted : False.
admit now simply cases proof_admitted and does
not create a new Axiom in the environment.
git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@16673 85f007b7-540e-0410-9357-904b9bb8a0f7
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git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@16473 85f007b7-540e-0410-9357-904b9bb8a0f7
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notation to use at printing time. We now allow to print "sigT P" as
"{x:_ & P x}", generating a "_" for the missing type, when the notation
is defined by 'Notation "{ x : A & P }" := (sigT (fun x:A => P))'.
Do better, and change the notation to "(sigT (A:=A) (fun x => P))" so
that the type is known even when eta-expansion is needed.
git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@16467 85f007b7-540e-0410-9357-904b9bb8a0f7
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git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@16413 85f007b7-540e-0410-9357-904b9bb8a0f7
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git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@16129 85f007b7-540e-0410-9357-904b9bb8a0f7
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It is much beter for everything (includind guard condition and simpl refolding)
excepts typeclasse inference because unification does not recognize
(fun x => f x b) a when it sees f a b ...
git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@16112 85f007b7-540e-0410-9357-904b9bb8a0f7
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some time to provide a library stating the groupoid structure of
equality proofs.
git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@15976 85f007b7-540e-0410-9357-904b9bb8a0f7
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instead of a general constr: this is the most common case and does
not loose generality (one can simply define constrs before Hint Resolving
them). Benefits:
- Natural semantics for typeclasses, not class resolution needed at
Hint Resolve time, meaning less trouble for users as well.
- Ability to [Hint Remove] any hint so declared.
- Simplifies the implementation as well.
git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@15930 85f007b7-540e-0410-9357-904b9bb8a0f7
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V7.1. Thanks to Assia for reporting.
git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@15929 85f007b7-540e-0410-9357-904b9bb8a0f7
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For starting a bare coqtop, the recommended option is now "-noinit"
that skips the load of Prelude.vo. Option "-nois" is kept for
compatibility, it is now an alias to "-noinit".
git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@15753 85f007b7-540e-0410-9357-904b9bb8a0f7
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git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@15715 85f007b7-540e-0410-9357-904b9bb8a0f7
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The ugly syntax "destruct x as [ ]_eqn:H" is replaced by:
destruct x eqn:H
destruct x as [ ] eqn:H
Some with induction. Of course, the pattern behind "as" is arbitrary.
For an anonymous version, H could be replaced by ?. The old syntax
with "_eqn" still works for the moment, by triggers a warning.
For making this new syntax work, we had to change the seldom-used
"induction x y z using foo" into "induction x, y, z using foo".
Now, only one "using" can be used per command instead of one per
comma-separated group earlier, but I doubt this will bother anyone.
git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@15566 85f007b7-540e-0410-9357-904b9bb8a0f7
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Most of these heavyweight annotations were introduced a long time ago
by the automatic 7.x -> 8.0 translator
git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@15518 85f007b7-540e-0410-9357-904b9bb8a0f7
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- For instance, refl_equal --> eq_refl
- Npos, Zpos, Zneg now admit more uniform qualified aliases
N.pos, Z.pos, Z.neg.
- A new module BinInt.Pos2Z with results about injections from
positive to Z
- A result about Z.pow pushed in the generic layer
- Zmult_le_compat_{r,l} --> Z.mul_le_mono_nonneg_{r,l}
- Using tactic Z.le_elim instead of Zle_lt_or_eq
- Some cleanup in ring, field, micromega
(use of "Equivalence", "Proper" ...)
- Some adaptions in QArith (for instance changed Qpower.Qpower_decomp)
- In ZMake and ZMake, functor parameters are now named NN and ZZ
instead of N and Z for avoiding confusions
git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@15515 85f007b7-540e-0410-9357-904b9bb8a0f7
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Suppose we declare : Notation foo := bar (compat "8.3").
Then each time foo is used in a script :
- By default nothing particular happens (for the moment)
- But we could get a warning explaining that
"foo is bar since coq > 8.3".
For that, either use the command-line option -verb-compat-notations
or the interactive command "Set Verbose Compat Notations".
- There is also a strict mode, where foo is forbidden : the previous
warning is now an error.
For that, either use the command-line option -no-compat-notations
or the interactive command "Unset Compat Notations".
When Coq is launched in compatibility mode (via -compat 8.x),
using a notation tagged "8.x" will never trigger a warning or error.
git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@15514 85f007b7-540e-0410-9357-904b9bb8a0f7
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git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@15291 85f007b7-540e-0410-9357-904b9bb8a0f7
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Why2 has not been maintained for the last few years and the Why3 plugin should
be a suitable replacement in most cases.
Removed tactics: simplify, ergo, yices, cvc3, z3, cvcl, harvey, zenon, gwhy.
Removed commands: Dp_hint, Dp_timeout, Dp_prelude, Dp_predefined, Dp_debug,
Dp_trace.
Note that the "admit" tactic was actually provided by the Dp plugin. It has
been moved to extratactics.ml4.
Ported from v8.4 r15186.
git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@15189 85f007b7-540e-0410-9357-904b9bb8a0f7
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No good reason for that except uniformity so revert this commit if you find a
reason against it.
git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@15146 85f007b7-540e-0410-9357-904b9bb8a0f7
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- fixing missing spaces in the format of the exists' notations (Logic.v);
- fixing wrong variable name in check_is_hole error message (topconstr.ml);
- interpret expressions with open binders such as "forall x y, t" as
"forall (x:_) (y:_),t" instead of "forall (x y:_),t" to avoid
the "implicit type" of a variable being propagated to the type of
another variable of different base name.
An open question remains: when writing explicitly "forall (x y:_),t",
should the types of x and y be the same or not. To avoid the "bug"
that x and y have implicit types but the one of x takes precedences, I
enforced the interpretation (in constrintern, not in parsing) that
"forall (x y:_),t" means the same as "forall (x:_) (y:_),t". However,
another choice could have been made. Then one would have to check that
if x and y have implicit types, they are the same; also, glob_constr
should ideally be changed to support a GProd and GLam with multiple
names in the same type, especially if this type is an evar. On the
contrary, one might also want e.g. "forall x y : list _, t" to mean
"forall (x:list _) (y:list _), t" with distinct instanciations of
"_" ...).
git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@15121 85f007b7-540e-0410-9357-904b9bb8a0f7
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add_definition/fixpoint and parsing of the "Program" prefix.
git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@15036 85f007b7-540e-0410-9357-904b9bb8a0f7
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git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@14918 85f007b7-540e-0410-9357-904b9bb8a0f7
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git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@14718 85f007b7-540e-0410-9357-904b9bb8a0f7
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Instead of hard-coding in search.ml some substrings such
as "_admitted" or "_subproof" we don't want to see in results
of SearchAbout and co, we now have a user command:
Add Search Blacklist "foo".
Remove Search Blacklist "foo". (* the opposite *)
Print Table Search Blacklist. (* the current state *)
In Prelude.v, three substrings are blacklisted originally:
- "_admitted" for internal lemmas due to admit.
- "_subproof" for internal lemmas due to abstract.
- "Private_" for hiding auxiliary modules not meant for
global usage.
Note that substrings are searched in the fully qualified names
of the available lemmas (e.g. "Coq.Init.Peano.plus").
This commit also adds the prefix "Private_" to some internal modules
in Numbers, Z, N, etc.
git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@14408 85f007b7-540e-0410-9357-904b9bb8a0f7
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git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@14401 85f007b7-540e-0410-9357-904b9bb8a0f7
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"rewrite Heq in H" but "rewrite" is sometimes used by users and I
don't want to have to change their file.
The solution to put the notations in a module does not work with name
"rewrite" because loading the module would change the status of
"rewrite" from simple ident to keyword (and we cannot declare
"rewrite" as an ident, as shown in previous commit).
Then we come back on notation "rew" (this name is also used by some
users), in a module.
This continues commit r14366 and r14390 and improves on the level of
the notation.
git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@14400 85f007b7-540e-0410-9357-904b9bb8a0f7
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so that the files in Init can benefit from the full-blown tactic language.
git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@14392 85f007b7-540e-0410-9357-904b9bb8a0f7
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a smaller risk that "rewrite" clashes with a name used for constr).
git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@14390 85f007b7-540e-0410-9357-904b9bb8a0f7
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git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@14277 85f007b7-540e-0410-9357-904b9bb8a0f7
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Start of a uniform treatment of compare, eqb, leb, ltb:
- We now ensure that they are provided by N,Z,BigZ,BigN,Nat and Pos
- Some generic properties are derived in OrdersFacts.BoolOrderFacts
In BinPos, more work about sub_mask with nice implications
on compare (e.g. simplier proof of lt_trans).
In BinNat/BinPos, for uniformity, compare_antisym is now
(y ?= x) = CompOpp (x ?=y) instead of the symmetrical result.
In BigN / BigZ, eq_bool is now eqb
In BinIntDef, gtb and geb are kept for the moment, but
a comment advise to rather use ltb and leb. Z.div now uses
Z.ltb and Z.leb.
git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@14227 85f007b7-540e-0410-9357-904b9bb8a0f7
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A sub-module N in BinNat now contains functions add (ex-Nplus),
mul (ex-Nmult), ... and properties.
In particular, this sub-module N directly instantiates NAxiomsSig
and includes all derived properties NProp.
Files Ndiv_def and co are now obsolete and kept only for compat
git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@14100 85f007b7-540e-0410-9357-904b9bb8a0f7
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git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@14095 85f007b7-540e-0410-9357-904b9bb8a0f7
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ident by Ltac).
git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@14074 85f007b7-540e-0410-9357-904b9bb8a0f7
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CompareSpec expects 3 propositions Peq Plt Pgt instead of 2 relations
eq lt and 2 points x y. For the moment, we still always use (Peq=eq x y),
(Plt=lt x y) (Pgt=lt y x), but this may not be always the case,
especially for Pgt. The former CompSpec is now defined in term of
CompareSpec. Compatibility is preserved (except maybe a rare unfold
or red to break the CompSpec definition).
Typically, CompareSpec looks nicer when we have infix notations, e.g.
forall x y, CompareSpec (x=y) (x<y) (y<x) (x?=x)
while CompSpec is shorter when we directly refer to predicates:
forall x y, CompSpec eq lt x y (compare x y)
git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@13914 85f007b7-540e-0410-9357-904b9bb8a0f7
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According to B. Gregoire, this stuff is obsolete. Fine control
on when to launch the VM in conversion problems is now provided
by VMcast. We were already almost never boxing definitions anymore
in stdlib files.
"(Un)Boxed Definition foo" will now trigger a parsing error,
same with Fixpoint. The option "(Un)Set Boxed Definitions"
aren't there anymore, but tolerated (as no-ops), since unknown
options raise a warning instead of an error by default.
Some more cleaning could be done in the vm.
git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@13806 85f007b7-540e-0410-9357-904b9bb8a0f7
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To avoid names¬ations clashs with list, Vector shouldn't be
"Import"ed but one can "Import Vector.VectorNotations." to have
notations.
SetoidVector at least remains to do.
git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@13702 85f007b7-540e-0410-9357-904b9bb8a0f7
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Program in terms of implicit arguments to the rest of the library.
This commit only covers the case of list of implicit arguments that
have a different length in Program (e.g. inl, Vcons) but not the case of
implicit arguments which differs only in their maximality status
(e.g. pair).
git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@13575 85f007b7-540e-0410-9357-904b9bb8a0f7
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the compatibility with the rest of the theories. Used multiple lists
of implicit arguments in Init only when the maximality status is not
modified in Program (and thus the compatibility is strictly
preserved). This improves the compatibility for the implicit arguments
of eq_refl and JMeq_refl between 8.2 and 8.3 when using Program (up to
the residual differences in the maximality status). For the constants
Acc_inv, inl, inr, left, right, Vnil, Vcons, the compatibility with
8.2 is not improved but the consistency between Program and the rest
of the library is.
git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@13485 85f007b7-540e-0410-9357-904b9bb8a0f7
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For the moment, almost no lemmas about (reflect P b), just the proofs
that it is equivalent with an P<->b=true.
is_true b is (b=true), and is meant to be added as a coercion
if one wants it. In the StdLib, this coercion is not globally
activated, but particular files are free to use Local Coercion...
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