Leonardo de Moura
57490a6431
feat(library/tactic/inversion_tactic): avoid unnecessary eq.rec's
2015-01-01 19:33:14 -08:00
Leonardo de Moura
58f052b1bb
fix(library/normalize): unitialized variable
2015-01-01 19:33:14 -08:00
Leonardo de Moura
761810f350
feat(library/tactic/inversion_tactic): generate auxiliary information
2015-01-01 19:33:14 -08:00
Leonardo de Moura
e76ef18980
feat(util/name_map): add rename_map
2015-01-01 19:33:14 -08:00
Leonardo de Moura
1f13bfa4f7
feat(library/tactic/inversion_tactic): add inversion::apply procedure
...
The new procedure is essentially a "customized" version of the
inversion (aka cases) tactic for the equations package
2015-01-01 19:33:14 -08:00
Soonho Kong
f370871574
fix(emacs/lean-syntax): highlight axioms
...
fix #382
2014-12-30 14:25:19 -05:00
Leonardo de Moura
0aa7e4a9f9
fix(frontends/lean/pp): option 'pp.private_names' should also affect private declarations defined in the current file
2014-12-28 14:22:36 -08:00
Leonardo de Moura
d082fb7402
fix(shell/lean): crash when trying to read file without extension
2014-12-28 14:22:36 -08:00
Leonardo de Moura
1d79cb9c07
fix(library/tactic/inversion_tactic): fix bug in 'cases' tactic for HoTT library
2014-12-22 09:40:15 -08:00
Leonardo de Moura
d2958044fd
feat(frontends/lean): add multiple_instances command
...
After this commit, Lean "cuts" the search after the first instance is
computed. To obtain the previous behavior, we must use the new command
multiple_instances <class-name>
closes #370
2014-12-21 17:28:44 -08:00
Leonardo de Moura
5efadb09cc
feat(library/tactic/inversion_tactic): improve 'cases' tactic for HoTT library
...
This commit adds support for hypotheses (h : C As idxs) where the indices idxs
are just local constants. Before this commit the indices idxs had to be hsets.
Now, they can be hsets or local constants.
The new tests demonstrate new examples that can be handled by the
improved tactic in the HoTT library
2014-12-21 15:19:25 -08:00
Leonardo de Moura
677ec2a2fe
feat(library/tactic/inversion_tactic): adjust inversion tactic to HoTT lib
2014-12-20 11:32:27 -08:00
Leonardo de Moura
7a75325416
feat(kernel/abstract): add new abstract_local procedure
...
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-12-20 11:31:48 -08:00
Leonardo de Moura
2070ac849c
feat(library/util): add get_intro_rule_names
...
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-12-20 11:31:48 -08:00
Leonardo de Moura
d9d822baa7
feat(library/tactic/class_instance_synth): add mk_hset_instance procedure
2014-12-19 22:00:25 -08:00
Leonardo de Moura
8c63045492
feat(library/util): add more auxiliary procedures
2014-12-19 22:00:25 -08:00
Leonardo de Moura
d6f79423e9
feat(library/tactic/class_instance_synth): add mk_class_instance procedures
2014-12-19 20:09:09 -08:00
Leonardo de Moura
4421069e34
refactor(library/tactic): rename placeholder_elaborator to class_instance_synth
2014-12-19 19:57:38 -08:00
Leonardo de Moura
ded869b7e0
refactor(frontends/lean): move placeholder_elaborator to library/tactic
2014-12-19 15:23:22 -08:00
Leonardo de Moura
a22dc773b7
refactor(frontends/lean): move some auxiliary procedures to library/tactic
2014-12-19 15:19:45 -08:00
Leonardo de Moura
07d7ea2f4e
refactor(frontends/lean/placeholder_elaborator): reduce coupling between placeholder_elaborator and frontends/lean
2014-12-19 15:08:21 -08:00
Leonardo de Moura
69750c50c6
refactor(frontends/lean): move pp_options to library
2014-12-19 15:00:05 -08:00
Leonardo de Moura
caf0a4bf15
refactor(frontends/lean): move type_checker_ptr typedef to library
2014-12-19 14:40:15 -08:00
Leonardo de Moura
02de288a51
refactor(frontends/lean): move choice_iterator to library
2014-12-19 14:29:32 -08:00
Leonardo de Moura
9bd74689be
feat(library/util): add mk_refl
2014-12-19 13:54:12 -08:00
Leonardo de Moura
a97bef7df2
feat(library/util): add mk_heq
2014-12-19 13:54:12 -08:00
Leonardo de Moura
1ca8723c54
refactor(library/util): allow mk_telescopic_eq to be used with (terms, locals)
2014-12-19 13:54:12 -08:00
Leonardo de Moura
aedf74e80a
feat(util/list): add to_list from buffer
2014-12-19 13:54:12 -08:00
Leonardo de Moura
6f78315aa4
refactor(*): add uniform names for "meta-objects"
2014-12-17 11:42:14 -08:00
Leonardo de Moura
8939351903
refactor(library): add compile_equations function, generic_exception, and cleanup elaborator_exception
2014-12-15 19:22:17 -08:00
Leonardo de Moura
5a9cd9eed4
fix(library/normalize): bug in the "eval" command
2014-12-15 19:22:17 -08:00
Leonardo de Moura
5cf8064269
refactor(library): rename exists_elim and exists_intro to exists.elim
...
and exists.intro
2014-12-15 19:07:38 -08:00
Leonardo de Moura
f0b002d5a7
fix(library/aliases): aliases in sections and contexts
2014-12-13 14:57:15 -08:00
Leonardo de Moura
c291063f3a
fix(frontends/lean/structure_cmd): simplify structure names
2014-12-13 14:18:02 -08:00
Leonardo de Moura
ab873cfff9
feat(frontends/lean/elaborator): replace metavariables in the equation lhs with fresh local constants before invoking compiler
2014-12-11 19:51:49 -08:00
Leonardo de Moura
eb184984c0
feat(util/buffer): add insert method
2014-12-11 19:31:54 -08:00
Leonardo de Moura
91ce99d921
feat(frontends/lean): type check 'decreasing' proofs in definition using well-founded recursion
2014-12-11 18:13:35 -08:00
Leonardo de Moura
8b3e97d285
feat(kernel/type_checker): add ensure_type variant
2014-12-11 17:32:17 -08:00
Leonardo de Moura
e897bbdeb9
feat(library/util): add auxiliary functions for creating tuples (using sigma types)
2014-12-11 17:31:47 -08:00
Leonardo de Moura
3d199d275d
fix(frontends/lean/token_table): increase binding power of decreasing operator
2014-12-11 17:31:12 -08:00
Leonardo de Moura
287a444481
feat(frontends/lean/pp): add option 'pp.numerals'
2014-12-11 17:28:58 -08:00
Leonardo de Moura
b8f665e561
feat(frontends/lean): elaborate recursive equations
...
Remark: we are not compiling them yet.
2014-12-10 22:25:40 -08:00
Leonardo de Moura
2867789bec
fix(library/unifier): handle missing first-order flex-flex case
2014-12-10 22:11:30 -08:00
Leonardo de Moura
756fae7c2a
refactor(frontends/lean): move local_context to library
2014-12-10 12:43:32 -08:00
Leonardo de Moura
bf875d5778
feat(library/definitional/equations): add support for inaccessible patterns
2014-12-10 12:35:08 -08:00
Leonardo de Moura
d98aabe9ab
refactor(library): move library/definitional/util module to library
2014-12-10 11:23:23 -08:00
Leonardo de Moura
ac664505e6
refactor(library): move class management to library module
2014-12-09 21:38:55 -08:00
Leonardo de Moura
05f27b8f0e
feat(frontends/lean/structure): add option for controlling whether we automatically generate eta and projection-over-intro theorems for structures
...
It seems most of the time these theorems are not used at all.
They are just polluting the namespace.
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-12-09 12:40:09 -08:00
Leonardo de Moura
d67583df44
fix(frontends/lean/parser): do not generate error when 'exit' command is used
2014-12-09 10:14:14 -08:00
Leonardo de Moura
58432d0968
feat(library/definitional): add no_confusion construction that is compatible with the HoTT library
2014-12-08 22:11:48 -08:00
Leonardo de Moura
2bb51554d5
feat(library/definitional/util): add telescope equality for HoTT library
...
This is needed for implementing no_confusion for HoTT.
We can't use heterogeneous equality in HoTT.
2014-12-07 18:35:55 -08:00
Leonardo de Moura
6736f58548
refactor(library/definitional/util): cleanup
2014-12-07 16:41:28 -08:00
Leonardo de Moura
ec7f90cb16
feat(hott/init): make sure eq is universe polymorphic
...
Jakob and Floris needed path equality to be universe polymorphic when
proving univalence.
2014-12-06 09:43:42 -08:00
Leonardo de Moura
93d5d43f71
fix(util/lean_path): typo
2014-12-05 22:15:07 -08:00
Leonardo de Moura
d09bc95eaf
feat(emacs): add Type0 highlight
2014-12-05 22:14:28 -08:00
Leonardo de Moura
effbf78d36
fix(shell): use --server for .hlean files
2014-12-05 16:13:29 -08:00
Leonardo de Moura
53d6d76162
fix(frontends/lean/parser): generate error when 'exit' command is used
...
m_theorem_queue.join() method assumes there are no open namespaces/scopes
2014-12-05 16:12:23 -08:00
Leonardo de Moura
d52fc83274
fix(build): clean-olean target should also clean HoTT library
2014-12-05 14:42:37 -08:00
Leonardo de Moura
0034ad9b34
feat(build): add HoTT library to build
2014-12-05 14:38:45 -08:00
Leonardo de Moura
eb87c18693
feat(*): add support for separate HoTT library
2014-12-05 14:34:02 -08:00
Leonardo de Moura
71e1555eb4
feat(emacs): use lean-mode for .hlean
2014-12-05 14:33:22 -08:00
Leonardo de Moura
e868ecce36
feat(frontends/lean): parse recursive equations
2014-12-04 17:03:21 -08:00
Leonardo de Moura
7a6d674b8e
refactor(frontends/lean/decl_cmds): cleanup definition_cmd
2014-12-04 16:03:29 -08:00
Leonardo de Moura
c8d8e7ac93
chore(library/definitional/equations): fix style
2014-12-04 16:00:33 -08:00
Leonardo de Moura
52334dca29
feat(frontends/lean): parse "decreasing" expressions
2014-12-04 15:11:23 -08:00
Leonardo de Moura
e267b2d120
feat(library/definitional/equations): add support for serializing equations
2014-12-04 15:11:18 -08:00
Leonardo de Moura
1d401ad862
feat(library/definitional): add "datastructure" for storing recursive equations
2014-12-04 12:39:59 -08:00
Leonardo de Moura
e72c4977f0
feat(frontends/lean): nicer notation for dependent if-then-else
2014-12-04 11:13:09 -08:00
Leonardo de Moura
ebda057499
fix(library/tactic/intros_tactic): seg fault at intros tactic, fixes #366
2014-12-04 09:26:10 -08:00
Leonardo de Moura
59d403f7d8
fix(library/tactic/inversion_tactic): warning on clang++
2014-12-03 21:14:10 -08:00
Leonardo de Moura
0f854f592c
fix(emacs): disable abbreviation mode that was expanding "def" into "definition"
2014-12-03 17:24:29 -08:00
Leonardo de Moura
d10bb92a7d
feat(library/aliases): protected definitions in nested namespaces, closes #331
2014-12-03 14:25:02 -08:00
Leonardo de Moura
0443c1e70c
fix(frontends/lean): intro tactic + universe variables, fixes #362
2014-12-03 12:56:30 -08:00
Leonardo de Moura
fca97d5bb2
feat(library/definitional): add brec_on construction, closes #272
2014-12-03 10:39:32 -08:00
Leonardo de Moura
f948241bb9
feat(library/definitional): add auxiliary functions
2014-12-03 10:28:55 -08:00
Leonardo de Moura
050104cdfd
fix(library/unifier): assertion violation
2014-12-02 12:17:59 -08:00
Leonardo de Moura
1b13562591
fix(library/flycheck): crash when io_state_stream is destroyed before flycheck_scope
2014-12-02 12:11:20 -08:00
Leonardo de Moura
5b2d17e4ab
feat(frontends/lean): add 'print notation' command
2014-12-02 12:04:18 -08:00
Leonardo de Moura
06f436840f
fix(library/unifier): postpone class-instance constraints whose type could not be inferred
2014-12-01 22:27:23 -08:00
Leonardo de Moura
19d14678ef
refactor(library/unifier): remove dead code
2014-12-01 21:57:34 -08:00
Leonardo de Moura
e6672b958f
fix(library/tactic/inversion_tactic): add missing case
2014-12-01 19:11:44 -08:00
Leonardo de Moura
bc7ee2958f
fix(library/tactic/inversion_tactic): bug in mutually recursive case
2014-12-01 18:32:38 -08:00
Leonardo de Moura
8c50048d1b
chore(frontends/lean/pp): fix style
2014-12-01 17:15:30 -08:00
Leonardo de Moura
6640fbf11b
feat(library/definitional/brec_on): simplify universe level constraints for non-reflexive recursive datatypes
2014-12-01 17:11:06 -08:00
Leonardo de Moura
320971832d
feat(frontends/lean/pp): add hard-coded pretty printer for nat numerals
2014-12-01 16:07:55 -08:00
Leonardo de Moura
193fed7061
fix(library/tactic/inversion_tactic): uninitialized variable
2014-11-30 22:41:22 -08:00
Leonardo de Moura
8dfd22e66c
feat(frontends/lean): add 'prelude' command, and init directory
2014-11-30 17:03:08 -08:00
Leonardo de Moura
c08f4672e4
feat(library/tactic): add 'assert' tactic, closes #349
2014-11-29 21:34:49 -08:00
Leonardo de Moura
f51fa93292
feat(library/tactic): add 'fapply' tactic, closes #356
2014-11-29 19:20:41 -08:00
Leonardo de Moura
2281fb30c8
refactor(library): use "symbolic" precedences in the standard library
2014-11-29 19:08:37 -08:00
Leonardo de Moura
2c0472252e
feat(frontends/lean): allow expressions to be used to define precedence, closes #335
2014-11-29 18:29:48 -08:00
Leonardo de Moura
2487e3b83d
fix(frontends/lean/parser): user provided numeral notation should have precedence over the default based on 'num'
2014-11-29 17:29:03 -08:00
Leonardo de Moura
bc65aeb5e1
fix(frontends/lean/calc): add expected type for single-step calc expressions, fixes #357
...
This is not an issue for calc expressions containing multiple steps,
since the transitivity step will "force" the expected type for the proofs.
2014-11-29 15:35:09 -08:00
Leonardo de Moura
a97d7ffed7
feat(frontends/lean/builtin_cmds): display 'print' command output as flycheck information
2014-11-29 13:31:42 -08:00
Leonardo de Moura
a0d650d9cc
fix(library/tactic/inversion_tactic): complete 'deletion' transition
2014-11-29 09:36:41 -08:00
Leonardo de Moura
ad0dfb4c64
fix(emacs): syntax highlight for 'cases ... with ...'
2014-11-28 22:41:46 -08:00
Leonardo de Moura
e0debca771
feat(library/tactic/inversion_tactic): add 'case ... with ...' variant that allows user to specify names for new hypotheses
2014-11-28 22:25:37 -08:00
Leonardo de Moura
22b2f3c78c
fix(library/tactic/inversion_tactic): bug in injectivity transition
2014-11-28 22:07:35 -08:00
Leonardo de Moura
a6be460166
feat(library/tactic/inversion_tactic): basic 'inversion' tactic
2014-11-28 21:56:13 -08:00
Leonardo de Moura
366bf70ccd
fix(frontends/lean/elaborator): do not display flycheck related messages when --flycheck is not on
2014-11-28 21:20:25 -08:00
Leonardo de Moura
6768c76b52
feat(library/tactic): refine 'get_unused_name'
2014-11-28 19:39:07 -08:00
Leonardo de Moura
c2602baf2b
feat(library/tools/tactic): add 'cases' alias for 'inversion' tactic
2014-11-28 19:33:11 -08:00
Leonardo de Moura
8b804f1d22
feat(frontends/lean): add option 'elaborator.flycheck_goals'
2014-11-28 16:34:02 -08:00
Leonardo de Moura
9516cd9ee3
feat(library/tactic): 'exact' tactic report unsolved placeholders in nested expression
...
Actually, the elaborator is the one reporting the unassigned
placeholders. The 'exact' tactic just makes the request.
To implement this feature we had to extend the elaboration interface
expected by the tactic framework.
2014-11-28 14:59:35 -08:00
Leonardo de Moura
04dfda99ab
fix(library/tactic/inversion_tactic): bug in name generation
2014-11-28 14:51:12 -08:00
Leonardo de Moura
4ec2101b06
feat(frontends/lean): add option 'pp.purify_locals'
2014-11-28 14:49:00 -08:00
Leonardo de Moura
13405b2bb0
fix(library/tactic/inversion_tactic): inversion tactic for datatypes with dependent elimination
2014-11-27 10:37:22 -08:00
Leonardo de Moura
4e572fac4e
feat(kernel/inductive): store whether an inductive datatype supports dependent elimination or not
2014-11-27 10:36:15 -08:00
Leonardo de Moura
f8fa9f3344
feat(emacs): highlight 'inversion' tactic
2014-11-27 10:26:32 -08:00
Leonardo de Moura
db9fd53b80
fix(library/tactic): pretty printer for proof states
2014-11-27 09:43:58 -08:00
Leonardo de Moura
976e907c8a
chore(library/tactic/tactic.h): cleanup
2014-11-27 09:15:49 -08:00
Leonardo de Moura
5fff3113a9
refactor(library/tactic/inversion_tactic): add 'cases_on' step to inversion_tactic
2014-11-27 00:06:26 -08:00
Leonardo de Moura
ebd320a6b3
feat(library/tactic): add first step of 'inversion' tactic
2014-11-26 21:28:00 -08:00
Leonardo de Moura
c2f32cd953
refactor(library/tactic/intros_tactic): change approach for generating fresh names for nameless 'intros'
2014-11-26 21:27:09 -08:00
Leonardo de Moura
a311f05add
refactor(library/tactic): move 'get_unused_name' to goal
2014-11-26 18:46:08 -08:00
Leonardo de Moura
2a00647089
refactor(library/tactic): cleanup 'revert' and 'clear' tactics
2014-11-26 17:08:14 -08:00
Leonardo de Moura
4bee7554a3
chore(lean-mode): remove 'annoying' abbreviations
2014-11-26 14:50:26 -08:00
Leonardo de Moura
e55397d422
feat(library/tactic): add 'clears' and 'reverts' variants
2014-11-26 14:49:48 -08:00
Leonardo de Moura
63eafaae9a
feat(emacs): add syntax-highlight for clear and revert tactics
2014-11-26 14:33:28 -08:00
Leonardo de Moura
2bd8f969d5
feat(library/tactic): add 'revert' tactic, closes #346
2014-11-26 14:23:42 -08:00
Leonardo de Moura
c28e9b9234
feat(library/tactic): add 'clear' tactic, closes #341
2014-11-26 13:11:36 -08:00
Leonardo de Moura
ffdeb0edc4
fix(frontends/lean/elaborator): unsolved metavariables, fix #329
2014-11-26 11:56:39 -08:00
Leonardo de Moura
ea63136434
fix(src/emacs/lean-flycheck): do not report 'sorry' warnings to flycheck, this is a temporary workaround since there is an overlap between flycheck and lean-mode type info
2014-11-26 09:35:22 -08:00
Leonardo de Moura
df51ba8b7c
feat(library/definitional/projection): use strict implicit inference, closes #344
2014-11-25 18:04:06 -08:00
Leonardo de Moura
ef75cac1c0
feat(kernel/expr): change the rules for inferring implicit arguments, closes #344
2014-11-25 12:54:07 -08:00
Leonardo de Moura
24a15b6c46
fix(frontends/lean): disable class-instance resolution when executing find_decl, fixes #343
2014-11-24 21:33:52 -08:00
Leonardo de Moura
a005c8f4d0
feat(frontends/lean): display eval/check/find_decl results using flycheck
2014-11-24 08:35:49 -08:00
Soonho Kong
fe638f0ee7
fix(emacs/lean-flycheck): fix bug in advice for lean-flycheck-try-parse-error-with-pattern
...
I provided an "advice" for 'flycheck-try-parse-error-with-pattern'
function to change its behavior, namely to increase error-columns by
one.
Bug
===
The problem is that it doesn't consider the case where the pattern is
not matched and ends up with "err = nil". For this case,
"(flycheck-error-column err)" generates an exception if executed. The
whole error parsing process stops immediately.
This causes a problem when we have more than one error-patterns, which
is the case when we enable 'error' and 'warning' patterns.
Fix
===
Fix is simple: check err before executing (flycheck-error-column err)
- (col (flycheck-error-column err)))
+ (col (and err (flycheck-error-column err))))
2014-11-24 05:06:51 -05:00
Leonardo de Moura
d81a6259e8
feat(frontends/lean/find_cmd): add options for controlling find_decl
2014-11-24 00:16:10 -08:00
Leonardo de Moura
f1e915a188
feat(frontends/lean): add 'find_decl' command
2014-11-23 23:00:59 -08:00
Leonardo de Moura
8c8bf41e39
feat(frontends/lean/server): do not unfold definitions in FINDG
2014-11-23 19:03:39 -08:00
Leonardo de Moura
44a2ef8f6f
fix(frontends/lean/parser_config): binder(s) rbp was not being saved in .olean file
2014-11-23 17:49:14 -08:00
Leonardo de Moura
64686c1278
feat(frontends/lean): allow user to associate precedence to binders, closes #323
2014-11-23 17:30:46 -08:00
Leonardo de Moura
cf3b0e1087
feat(frontends/lean/placeholder_elaborator): apply substitution before collecting local instances, closes #333
2014-11-23 17:30:46 -08:00
Leonardo de Moura
13fba433b0
feat(library/tactic/generalize): add 'generalizes' syntax sugar, closes #327
2014-11-23 17:30:22 -08:00
Leonardo de Moura
47b6cfb28d
feat(library/logic/if): add dependent if-then-else: dite
2014-11-22 09:56:32 -08:00
Leonardo de Moura
5d5fd2da50
fix(frontends/lean): tactic + section variables, fixes #332
2014-11-21 10:07:16 -08:00
Leonardo de Moura
28c63e685b
feat(frontends/lean): add '[local]' notation, closes #322
2014-11-16 21:15:04 -08:00
Leonardo de Moura
e81d9c9184
perf(kernel/level): apply two simple normalization rules at mk_max
...
They are variations of:
max l1 (max l1 l2) == (max l1 l2)
2014-11-16 18:16:57 -08:00
Leonardo de Moura
ea640257bf
feat(frontends/lean/structure_cmd): generate no_confusion for structures too
2014-11-15 16:00:09 -08:00
Leonardo de Moura
8b659ae679
fix(util/lean_path): change the default LEAN_PATH, a file in the current directory cannot shadow a library file, fixes #321
2014-11-14 17:23:09 -08:00
Leonardo de Moura
7685516d1e
feat(frontends/lean): better default for atomic notation
2014-11-14 16:25:13 -08:00
Leonardo de Moura
67de3b06f3
feat(kernel/level): improve universe level pretty printer
...
Example: produce `l+2` instead of `succ (succ l)`.
2014-11-14 14:51:03 -08:00
Leonardo de Moura
00df34a1c4
feat(library/unifier): generalize method process_succ_eq_max_core
2014-11-14 14:25:41 -08:00
Leonardo de Moura
ffffabad95
feat(kernel/level): improve is_geq procedure for universe levels
...
Now, it also returns true for
(succ^k1 a) =?= k2
where k1 >= k2
2014-11-14 14:20:35 -08:00
Leonardo de Moura
488f989c46
fix(frontends/lean/inductive_cmd): generate error for inductive datatype declarations that will produce an eliminator that can only eliminate to Prop
2014-11-14 13:57:42 -08:00
Leonardo de Moura
58525905d0
fix(frontends/lean/notation_cmd): bugs in 'reserve notation' command
2014-11-13 22:05:55 -08:00
Leonardo de Moura
51719145f9
feat(library/unifier): solved universe constraints of the form succ^k1 a = max k2 ?m (when k1 >= k2)
2014-11-12 17:28:33 -08:00
Leonardo de Moura
6bc89f0916
feat(library/definitional): define ibelow and below
...
These are helper definitions for brec_on and binduction_on
2014-11-12 16:38:46 -08:00
Leonardo de Moura
b07b82cf43
fix(library/definitional): marking cases_on and rec_on as reducible
...
The idea is to avoid counter-intuitive behavior
2014-11-12 15:03:30 -08:00