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1093 commits

Author SHA1 Message Date
Leonardo de Moura
667f647b27 feat(kernel/expr_eq_fn): add small optimization 2015-07-01 09:19:36 -07:00
Leonardo de Moura
e7c3c887b6 feat(kernel/type_checker): add 'check' procedure that uses 'opaque_hints' 
The hints only affect performance. If a declaration type checks assuming
some constants are opaque, it should also type check without this
assumption. Of course, it may be much slower.
 2015-06-30 13:12:34 -07:00
Leonardo de Moura
772ed111e5 refactor(kernel): move extra_opaque_converter to kernel, and rename it to hint_converter 2015-06-30 12:59:28 -07:00
Leonardo de Moura
e635d9be9f refactor(kernel): rename get_weight to get_height at declaration 
Motivation:
- It is the standard name for the concept: declaration height
- Avoid confusion with the expression weight
 2015-06-30 12:59:10 -07:00
Leonardo de Moura
1e6550eda6 feat(kernel/default_converter): take into account the 'theorem' annotations in the converability checker 
The idea is that we should seldon need to unfold theorems.
The convertability checker should use that.
When the convertability checker was implemented, theorems were opaque in
Lean. So, this hint was not needed.

This modification is another workaround for the performance problem with
the migrate command at library/data/real/division.lean.
This solution is better than applying proof irrelevance eagerly because
it also addresses similar problems in the HoTT library which does not
support proof irrelevance.

This commit also enables the conv_opt for all theorems.
 2015-06-30 10:42:26 -07:00
Leonardo de Moura
acc0832928 feat(kernel/default_converter): add "eager" proof irrelevance optimization 2015-06-29 19:10:39 -07:00
Leonardo de Moura
a2389fb664 refactor(kernel/default_converter): move delay_check code to postpone_is_def_eq method 2015-06-22 13:59:32 -07:00
Leonardo de Moura
76477aedd1 refactor(kernel): move is_stuck predicate to converter 2015-06-22 11:37:14 -07:00
Leonardo de Moura
54496709a2 refactor(kernel/default_converter): add virtual method reduce_def_eq 
The idea is to allow us to customize the default converter outside of
the kernel.
 2015-06-22 10:04:19 -07:00
Leonardo de Moura
a518a45239 refactor(kernel/default_converter): separate lazy_delta_reduction procedure 2015-06-22 08:45:05 -07:00
Leonardo de Moura
3626bd83bf refactor(util/sexpr/format): remove format constructors using std::initializer_list 
For some reason lean.js (Lean compiled using emscripten) crashes when
this kind of constructor is used.
 2015-06-20 14:02:18 -07:00
Leonardo de Moura
accc9dc38b chore(util/sexpr/format): remove unnecessary method 2015-06-19 20:11:42 -07:00
Leonardo de Moura
70fc05294b refactor(library/local_context): avoid hack in local_context 2015-06-18 15:41:00 -07:00
Leonardo de Moura
14c33c4e01 feat(kernel/error_msgs): add workaround for issue #669 
This issue should fix the new problem reported at #669.
It only disables beta-reduction in the pretty printer for application
type mismatch at (f n) when f is a lambda expression.
 2015-06-17 12:00:25 -07:00
Leonardo de Moura
d8620ef4c9 fix(kernel,library,frontends/lean): improve error messages 
see #669
 2015-06-14 19:44:00 -07:00
Leonardo de Moura
25cbc5c154 fix(kernel/expr): remove 'cast_binder_info' 
We should put it back when we decide to implement it.
We also fix the bogus comment at src/frontends/lean/parser.cpp.

see issue #667
 2015-06-11 18:11:22 -07:00
Leonardo de Moura
8b062b4448 feat(kernel/default_converter): add support for stuck terms at try_eta_expansion_core 2015-06-10 15:19:39 -07:00
Leonardo de Moura
f7dd85a935 chore(*): fix 'breif' typos 2015-06-08 16:54:55 -07:00
Leonardo de Moura
496189feed feat(kernel/default_converter): cache failures for (f t =?= f s) heuristic 
See item 4 at
https://groups.google.com/forum/?utm_medium=email&utm_source=footer#!msg/lean-discuss/oJXwW5wT2Ds/d1Dgr8B-pE0J

See also
https://github.com/leanprover/lean/pull/659
 2015-06-08 10:41:30 -07:00
Leonardo de Moura
0e099b5fd8 feat(library/tactic/rewrite_tactic): apply beta&eta reduction before rewriting steps, add option 'rewrite.beta_eta' (default true) to control new feature. 2015-06-06 20:43:52 -07:00
Leonardo de Moura
d0d3f9bb41 refactor(kernel,library,frontends/lean): add helper functions, and cleanup collect_locals 2015-06-05 17:29:36 -07:00
Leonardo de Moura
4d52d4c790 fix(library/init/quot): prove quot.exact 2015-06-05 08:04:55 -07:00
Floris van Doorn
ff01774fd7 renaming(hit): rename type_quotient to quotient, and quotient to set_quotient 
This renaming is because type_quotient is a nonstandard name.  I've had a discussion with Egbert
Rijke, Steve Awodey and Dan Licata, and the consensus for a better name was 'quotient'.  I had to
make changes in src/kernel/hits/hits.cpp, I renamed g_type_quotient* by g_hit_quotient* (to avoid
name clash the standard library quotient, although I don't know whether that name clash would
matter).
 2015-06-04 20:14:13 -04:00
Leonardo de Moura
7a0e198147 feat(kernel,frontends/lean/builtin_cmds): allow kernel extensions to report their builtin constants 2015-05-29 16:28:16 -07:00
Leonardo de Moura
0ceedbe69e fix(library/normalize): fixes #640 2015-05-29 15:58:59 -07:00
Leonardo de Moura
004ea80e65 fix(library/tactic/rewrite_tactic): apply beta reduction when selecting patterns 2015-05-24 18:44:30 -07:00
Leonardo de Moura
f830bf54c2 refactor(*): clarify name_generator ownership 2015-05-21 14:32:36 -07:00
Leonardo de Moura
6a87239a5d chore(kernel/justification): fix compilation warning 2015-05-21 10:13:44 -07:00
Leonardo de Moura
76e7f2e7d8 feat(kernel/justification): make sure the code does not depend on the argument order of evaluation generated by a compiler 
see issue #618
 2015-05-21 07:42:10 -07:00
Leonardo de Moura
d5da659be7 feat(frontends/lean/elaborator): include overload information in error messages 2015-05-20 17:21:27 -07:00
Leonardo de Moura
bd28396be0 feat(kernel): transparent theorems 
closes #576
 2015-05-09 11:42:29 -07:00
Leonardo de Moura
f63c2d9393 feat(kernel/inductive/inductive): for datatypes that support K, we should try K before normalizing the major premise 2015-05-09 11:23:10 -07:00
Leonardo de Moura
d217655a62 fix(kernel/quotient/quotient): bug in reduction rule for quot.ind 2015-05-09 09:07:03 -07:00
Leonardo de Moura
cf7e60e5a6 refactor(kernel): remove "opaque" field from kernel declarations 
see issue #576
 2015-05-08 16:06:16 -07:00
Leonardo de Moura
57ea660963 refactor(*): start process for eliminating of opaque definitions from the kernel 
see issue #576
 2015-05-08 16:06:04 -07:00
Leonardo de Moura
061e26157e fix(kernel,library): make sure macros check relevant arguments when kernel is performing full type checking 2015-05-08 12:41:23 -07:00
Leonardo de Moura
45c8cdc626 fix(kernel/default_converter): discard constraints when optimization fails 2015-05-07 15:02:29 -07:00
Leonardo de Moura
16b7bc3922 fix(kernel/default_converter): broken optimization 
we must also check the universe levels when applying the optimization for
constraints of the form:

            f.{l_1 ... l_k} a_1 ... a_n  =?= f.{l_1' ... l_k'} b_1 ... b_n

The optimization tries to avoid unfolding f if we can establish that
a_i is definitionally equal to b_i for each i in [1, n]

closes #581
 2015-05-06 18:32:41 -07:00
Leonardo de Moura
701b0ae66f feat(library): export environment in textual format 
closes #577
 2015-05-04 18:05:00 -07:00
Leonardo de Moura
91abba3c3d refactor(kernel): rename method 2015-04-29 11:46:27 -07:00
Leonardo de Moura
b98c109f73 fix(kernel/hits/hits): bug in reduction rule 
closes #564
 2015-04-29 10:01:46 -07:00
Leonardo de Moura
051615712c fix(kernel/quotient/quotient): bug in reduction rule 2015-04-29 10:01:17 -07:00
Leonardo de Moura
16f237f042 feat(kernel/inductive): remove problematic check 
see discussion at issue #563

closes #563
 2015-04-28 17:21:41 -07:00
Leonardo de Moura
dcc94dde82 refactor(kernel): rename may_reduce_later to is_stuck, and make is_stuck more precise 
It now reflects the definition used in the elaboration paper.
 2015-04-27 11:20:15 -07:00
Leonardo de Moura
4a157ee676 refactor(kernel/justification): create "wrapper" justification 
It allows us to provide a different pretty printer.

This is a cleanup, and also helps to address issue #528
 2015-04-24 14:49:32 -07:00
Leonardo de Moura
8241863abe feat(kernel/hits): add two builtin HITs: type_quotient and trunc 2015-04-23 15:32:31 -07:00
Leonardo de Moura
47e37a3353 feat(kernel/metavar): add additional assertions 2015-04-20 17:46:06 -07:00
Leonardo de Moura
969d17fd12 fix(frontends/lean/elaborator): class inference in tactic mode with trunc 
closes #477
 2015-04-05 17:47:14 -07:00
Leonardo de Moura
ed1acd9fb0 feat(library/init): move propext to init/quot, add Jeremy's funext theorem 2015-04-01 12:36:33 -07:00
Leonardo de Moura
b960e123b1 feat(kernel): add experimental support for quotient types 2015-03-31 22:04:16 -07:00