Leonardo de Moura
f903626b78
feat(library/kernel_bindings): allow a list of level params/globals to be provided to declarations (instead of a list of names)
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-05-14 09:45:48 -07:00
Leonardo de Moura
9ed700a5a6
feat(kernel/environment): add forget method
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-05-13 08:40:46 -07:00
Leonardo de Moura
c883c638d6
feat(library/kernel_bindings): expose expression tags in the Lua API
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-05-12 16:50:43 -07:00
Leonardo de Moura
6f03064c46
fix(library/kernel_bindings): bug in mk_definition Lua API
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-05-12 12:56:50 -07:00
Leonardo de Moura
ff9004dae2
refactor(kernel): add level normalizer, is_equivalent predicate, switch to is_equivalent in the type checker, fix bugs in is_lt predicate
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-05-11 18:05:02 -07:00
Leonardo de Moura
e942aecca6
refactor(kernel/type_checker): remove method is_conv
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-05-09 20:29:35 -07:00
Leonardo de Moura
9d96f24766
refactor(kernel): remove convertability constraints
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-05-09 20:25:27 -07:00
Leonardo de Moura
aaea298839
refactor(library/kernel_bindings): remove level pair and list of level pairs from Lua API
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-05-09 20:13:10 -07:00
Leonardo de Moura
7b6d555433
refactor(kernel): remove level constraints from definitions
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-05-09 20:11:50 -07:00
Leonardo de Moura
a650a4f9b5
fix(library/kernel_bindings): bug in mk_app, add expr_lt tests
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-05-09 19:54:52 -07:00
Leonardo de Moura
9676f48470
feat(library/kernel_bindings): add list of certified_definitions in the Lua API
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-05-08 18:51:34 -07:00
Leonardo de Moura
c843243f64
feat(library/kernel_bindings): add add_decl and type_check functions to Lua API
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-05-08 18:08:32 -07:00
Leonardo de Moura
95262fb68d
feat(library/kernel_bindings): add remaining type_checker constructors in the Lua API
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-05-08 17:13:06 -07:00
Leonardo de Moura
3aa1afdf51
refactor(util): file name convention
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-05-08 14:15:28 -07:00
Leonardo de Moura
bf57f951ea
refactor(util): move Lua named parameter support to a different file
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-05-08 13:20:37 -07:00
Leonardo de Moura
f3c7bc948a
feat(library/kernel_bindings): type_checker Lua API
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-05-07 19:04:15 -07:00
Leonardo de Moura
62db010ba3
feat(library/kernel_bindings): add optional arguments to empty_environment Lua API
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-05-07 17:06:27 -07:00
Leonardo de Moura
4c5f88e63b
feat(library/kernel_bindings): global level constructor/accessor/recognizer
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-05-07 16:22:45 -07:00
Leonardo de Moura
8ae0e46e9d
feat(library/kernel_bindings): add new global level methods to environment Lua API
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-05-07 16:17:04 -07:00
Leonardo de Moura
8095783c36
refactor(library/kernel_bindings): use new functions for simulating python-like named arguments
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-05-05 14:42:16 -07:00
Leonardo de Moura
850ec69538
feat(kernel): add flag for disabling impredicativity of Prop/Bool in the kernel
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-05-05 14:09:17 -07:00
Leonardo de Moura
10d8840cac
feat(library/kernel_bindings): add environment Lua API
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-05-02 17:53:32 -07:00
Leonardo de Moura
4f3fad5d65
feat(library/kernel_bindings): add certified_definition Lua API
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-05-02 17:46:59 -07:00
Leonardo de Moura
8f5491447a
feat(library/kernel_bindings): add environment_id Lua API
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-05-02 17:42:27 -07:00
Leonardo de Moura
fc2d5f1595
feat(library/kernel_bindings): add definition Lua API
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-05-02 17:00:59 -07:00
Leonardo de Moura
b83410f042
fix(library/kernel_bindings): g++ compilation error
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-05-02 14:34:56 -07:00
Leonardo de Moura
dc627c9965
test(lua): add constraint API tests, and fix minor bugs
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-05-02 13:37:46 -07:00
Leonardo de Moura
6ef161824d
feat(library/kernel_bindings): constraint Lua API
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-05-02 13:17:00 -07:00
Leonardo de Moura
802edd77d1
feat(kernel/justification): add is_eqp predicate
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-05-02 12:15:29 -07:00
Leonardo de Moura
94ca82ec85
fix(library/kernel_bindings): incorrect use of pushinteger, and improve justification Lua API
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-05-02 12:03:43 -07:00
Leonardo de Moura
a5229e5283
chore(util/lua): name convention
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-05-01 18:40:18 -07:00
Leonardo de Moura
7cd892464f
feat(library/definition): macro definition and application Lua API
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-05-01 18:29:34 -07:00
Leonardo de Moura
9f5122b4c7
feat(library/kernel_bindings): justification Lua API
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-05-01 16:04:30 -07:00
Leonardo de Moura
340c0e0945
feat(library/kernel_bindings): substitution Lua API
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-05-01 15:30:30 -07:00
Leonardo de Moura
686c307976
feat(library/kernel_bindings): expr Lua API
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-05-01 12:25:49 -07:00
Leonardo de Moura
305815cb56
feat(library/kernel_bindings): expose expr_binder_info in the Lua API
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-05-01 11:23:37 -07:00
Leonardo de Moura
884b3f9b53
refactor(library/kernel_bindings): part of expr Lua API
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-04-30 16:37:26 -07:00
Leonardo de Moura
fd034521dc
feat(library/kernel_bindings): cleanup level Lua API
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-04-29 17:05:25 -07:00
Leonardo de Moura
93a61748e9
fix(kernel/level): bug in optional<level>() constructor
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-04-29 17:00:57 -07:00
Leonardo de Moura
984048f40d
feat(library/kernel_bindings): new level Lua API
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-04-29 15:08:58 -07:00
Leonardo de Moura
412a3797f4
refactor(*): add pushboolean inline function, and replace lua_pushboolean with it
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-04-29 14:37:16 -07:00
Leonardo de Moura
f7e705badb
refactor(library/kernel_bindings): reactive some of the kernel Lua bindings
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-04-29 11:52:09 -07:00
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
8eec289ce1
feat(kernel): add dependent pairs
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-02-03 16:52:49 -08:00
Leonardo de Moura
6bcd8e3ee5
fix(library/expr_lt): use expression depth instead of size to obtain a monotonic total order on terms
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It is not incorrect to use size, but it can easily overflow due to sharing.
The following script demonstrates the problem:
local f = Const("f")
local a = Const("a")
function mk_shared(d)
if d == 0 then
return a
else
local c = mk_shared(d-1)
return f(c, c)
end
end
print(mk_shared(33):size())
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-01-20 17:40:49 -08:00
Leonardo de Moura
6a63ef3bc5
feat(library/expr_lt): make sure the total order on terms is monotonic
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-01-20 13:07:18 -08:00
Leonardo de Moura
ac9f8f340d
feat(kernel/expr): add efficient get_size() function for expressions
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-01-20 12:28:37 -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
d063828ff9
feat(library/kernel_bindings): expose abst_name, abst_domain and abst_body in the Lua API
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-01-16 00:03:16 -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