Leonardo de Moura
83d38674c9
feat(kernel/error_msgs): improve cryptic type mismatch error messages where the types may seem identical because key information is being suppressed
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-07-27 09:41:25 -07:00
Leonardo de Moura
0cdd4a267c
feat(frontends/lean/pp): pretty print 'show' expressions
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-07-26 21:56:35 -07:00
Leonardo de Moura
60cc9ac8e2
feat(frontends/lean/pp): pretty print 'have' expressions
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-07-26 21:35:26 -07:00
Leonardo de Moura
cf35c07786
fix(frontends/lean): fix 'let' annotation placement and pretty printer
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-07-26 21:00:22 -07:00
Leonardo de Moura
811f46e97b
feat(frontends/lean/pp): add option for displaying internal names associated with private declarations
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-07-25 11:03:54 -07:00
Leonardo de Moura
0c668a31fe
fix(frontends/lean/pp): display private 'internal' names in a human readable way
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-07-25 10:58:13 -07:00
Leonardo de Moura
022a151cf7
feat(kernel): add general purpose 'annotations', they are just a generalization of the 'let'-annotations
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-07-25 09:33:31 -07:00
Leonardo de Moura
736b219e65
fix(frontends/lean/elaborator): pretty print placeholders as '_'
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-07-25 08:46:03 -07:00
Leonardo de Moura
e7c7d5718a
fix(frontends/lean/pp): fix bug in the pretty printer
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-07-25 08:30:30 -07:00
Leonardo de Moura
5eaf04518b
refactor(*): rename Bool to Prop
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-07-22 09:43:18 -07:00
Leonardo de Moura
b62abf0f06
refactor(library/tactic/goal): remove redundance, goal pp method was duplicating some of the functionality provided by the pretty printer
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-07-10 18:59:03 +01:00
Leonardo de Moura
405e57eb2d
refactor(kernel/formatter): add formatter_factory, and simplify formatter interface
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-07-10 18:32:00 +01:00
Leonardo de Moura
c13c75b93e
feat(frontends/lean/pp): add option for displaying fully qualified names
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-07-10 15:55:19 +01:00
Leonardo de Moura
49bc3fffbd
fix(frontends/lean/pp): purify procedure for local names
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-07-10 14:13:51 +01:00
Leonardo de Moura
aff766430d
fix(frontends/lean/pp): universe pretty printer
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-07-09 19:17:28 -07:00
Leonardo de Moura
43eba857cb
feat(frontends/lean): add let-expr pretty printer, reduce default indentation to 2
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-07-09 18:47:10 -07:00
Leonardo de Moura
d31cde473e
fix(util/sexpr): nested Lua objects
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-07-09 11:13:17 -07:00
Leonardo de Moura
2ef7b9be2f
feat(frontends/lean): add basic pretty printer
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-07-09 01:12:36 -07:00
Leonardo de Moura
c6af56260e
refactor(frontends/lean): remove dead code
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-05-15 15:51:41 -07:00
Leonardo de Moura
a2d2e36f04
refactor(frontends/lean): remove notation for creating tuples
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-02-10 09:03:42 -08:00
Leonardo de Moura
24528ff685
fix(library/elaborator): fix glitches in the elaborator that were forcing us to provide parameters explicitly
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-02-07 18:02:08 -08:00
Leonardo de Moura
1ec01f5757
refactor(builtin): merge pair.lean with kernel.lean, and add basic theorems
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-02-07 16:04:44 -08:00
Leonardo de Moura
6d7ec9d7b6
refactor(kernel): add heterogeneous equality back to expr
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The main motivation is that we will be able to move equalities between universes.
For example, suppose we have
A : (Type i)
B : (Type i)
H : @eq (Type j) A B
where j > i
We didn't find any trick for deducing (@eq (Type i) A B) from H.
Before this commit, heterogeneous equality as a constant with type
heq : {A B : (Type U)} : A -> B -> Bool
So, from H, we would only be able to deduce
(@heq (Type j) (Type j) A B)
Not being able to move the equality back to a smaller universe is
problematic in several cases. I list some instances in the end of the commit message.
With this commit, Heterogeneous equality is a special kind of expression.
It is not a constant anymore. From H, we can deduce
H1 : A == B
That is, we are essentially "erasing" the universes when we move to heterogeneous equality.
Now, since A and B have (Type i), we can deduce (@eq (Type i) A B) from H1. The proof term is
(to_eq (Type i) A B (to_heq (Type j) A B H)) : (@eq (Type i) A B)
So, it remains to explain why we need this feature.
For example, suppose we want to state the Pi extensionality axiom.
axiom hpiext {A A' : (Type U)} {B : A → (Type U)} {B' : A' → (Type U)} :
A = A' → (∀ x x', x == x' → B x == B' x') → (∀ x, B x) == (∀ x, B' x)
This axiom produces an "inflated" equality at (Type U) when we treat heterogeneous
equality as a constant. The conclusion
(∀ x, B x) == (∀ x, B' x)
is syntax sugar for
(@heq (Type U) (Type U) (∀ x : A, B x) (∀ x : A', B' x))
Even if A, A', B, B' live in a much smaller universe.
As I described above, it doesn't seem to be a way to move this equality back to a smaller universe.
So, if we wanted to keep the heterogeneous equality as a constant, it seems we would
have to support axiom schemas. That is, hpiext would be parametrized by the universes where
A, A', B and B'. Another possibility would be to have universe polymorphism like Agda.
None of the solutions seem attractive.
So, we decided to have heterogeneous equality as a special kind of expression.
And use the trick above to move equalities back to the right universe.
BTW, the parser is not creating the new heterogeneous equalities yet.
Moreover, kernel.lean still contains a constant name heq2 that is the heterogeneous
equality as a constant.
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-02-07 10:28:10 -08:00
Leonardo de Moura
ea06bb2885
feat(frontends/lean/pp): change how lift local entries are pretty printed
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-02-06 17:26:38 -08:00
Leonardo de Moura
493007b7bc
fix(frontends/lean/pp): bug in tuple/pair pretty printing
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-02-04 13:58:01 -08:00
Leonardo de Moura
4fcc292332
feat(frontends/lean): parse and pretty print pair/tuple projection operators proj1 and proj2, fix bug in the type checker
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-02-03 22:10:01 -08:00
Leonardo de Moura
cc96b50644
feat(frontends/lean): support for nary-tuples, improve notation for non-dependent tuples, add support in the elaborator for sigma types
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-02-03 20:53:11 -08:00
Leonardo de Moura
5c991f8fbf
feat(frontends/lean): parse and pretty print tuples/pairs
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This commit also fixes a bug in the type checker when processing dependent pairs.
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-02-03 20:10:30 -08:00
Leonardo de Moura
5e5ab1429d
feat(frontends/lean): parse and pretty print sigma types
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This commit also fixes some bugs in the implementation of Sigma types.
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-02-03 18:16:00 -08:00
Leonardo de Moura
c56df132b8
refactor(kernel): remove semantic attachments from the kernel
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-02-02 14:48:27 -08:00
Leonardo de Moura
f0a2d3627e
refactor(frontends/lean): use ascii prefix for auxiliary let-declarations
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-01-29 11:58:09 -08:00
Leonardo de Moura
1638a7bb02
fix(frontends/lean/pp): compute local shared nodes, and avoid unnecessary let's
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-01-22 21:44:24 -08:00
Leonardo de Moura
90ffb9d5ec
fix(frontends/lean/pp): bug in pp_abstraction_core
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-01-19 19:47:40 -08:00
Leonardo de Moura
a43020b31b
refactor(kernel): remove heterogeneous equality
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-01-16 17:39:12 -08:00
Leonardo de Moura
14c6218bdc
chore(kernel): file name convention
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-01-15 20:06:29 -08:00
Leonardo de Moura
12451e4a35
feat(frontends/lean/pp): display implicit arguments when expression contains metavariables
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-01-13 12:42:05 -08:00
Leonardo de Moura
411f14415d
feat(builtin): automatically generate Lean/C++ interface for builtin theories
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-01-09 18:09:53 -08:00
Leonardo de Moura
2179e57db3
refactor(builtin): move if_then_else to its own module
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-01-09 14:08:39 -08:00
Leonardo de Moura
048151487e
feat(kernel): use Pi as forall/implication
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-01-08 00:38:39 -08:00
Leonardo de Moura
5fe8c32da9
feat(kernel): use new universe contraints in the environment, allow new constraints to be added
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-01-06 16:46:11 -08:00
Leonardo de Moura
0592261847
refactor(kernel/io_state): move io_state_stream to library
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-01-02 13:14:21 -08:00
Leonardo de Moura
43909ca66b
feat(frontends/lean/pp): pretty print SetOpaque command
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-01-01 13:16:44 -08:00
Leonardo de Moura
15621610e9
refactor(library/arith): replace Nat, Int, Real with simple variable decls instead of semantic attachments
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This commit also fixes bugs in the Alias command.
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2013-12-29 17:04:36 -08:00
Leonardo de Moura
a1a5fb101d
feat(frontends/lean): add Alias command
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2013-12-29 16:25:45 -08:00
Leonardo de Moura
411ebbc3c1
refactor(library/basic_thms): move the proof of all basic theorems to a .Lean file
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This commit also adds several new theorems that are useful for implementing the simplifier.
TODO: perhaps we should remove the declarations at basic_thms.h?
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2013-12-29 03:04:49 -08:00
Leonardo de Moura
aee1c6d3f3
feat(kernel): export/import (.olean) binary files
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2013-12-28 17:31:35 -08:00
Leonardo de Moura
8cf65f354b
fix(frontends/lean/pp): forall and exists pretty printing when used as constants
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2013-12-27 12:50:41 -08:00
Leonardo de Moura
a02c6e70fa
fix(frontends/lean/pp): missing parenthesis around nested forall/exists
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2013-12-27 12:13:36 -08:00
Leonardo de Moura
3673f2ac1d
feat(frontends/lean/parser): add Find command
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2013-12-25 18:31:52 -08:00
Leonardo de Moura
ce84fe5d33
feat(frontends/lean): improve error messages when elaborator cannot instantiate all metavariables
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2013-12-20 22:00:50 -08:00