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1843 commits

Author SHA1 Message Date
Leonardo de Moura
d1cb0018c0 fix(tests): adjust tests to reflect changes in the HoTT library 2015-04-29 10:15:13 -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
d2c7b5c319 feat(library/tactic): add 'let' tactic 
closes #555
 2015-04-28 17:24:43 -07:00
Leonardo de Moura
1be72f1faa feat(frontends/lean): parse argument of unary tactis with rbp=0, tokens may have a different precedence in expression and tactic modes 2015-04-28 13:43:05 -07:00
Leonardo de Moura
a23118d357 feat(frontends/lean): add tactic_notation command 
This addresses the first part of issue #461

We still need support for tactic definitions
 2015-04-27 17:46:13 -07:00
Leonardo de Moura
ca8943f45b feat(library,hott): remove rapply tactic 2015-04-27 15:06:16 -07:00
Leonardo de Moura
9d01868361 feat(frontends/lean): use rewrite tactic to implement unfold (it has a unfold step) 
closes #502
 2015-04-24 17:23:12 -07:00
Leonardo de Moura
28404fe16d fix(library/tactic/rewrite_tactic): second problem reported at issue #548 
closes #548
 2015-04-24 16:49:32 -07:00
Leonardo de Moura
6134c8822a fix(frontends/lean/util): assertion violation 
fixes #559
 2015-04-24 15:09:23 -07:00
Leonardo de Moura
f723550d33 feat(frontends/lean/elaborator): decorates error message with free variables introduced by the left-hand-side of the equation 
closes #528
 2015-04-24 14:58:15 -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
2613e7c444 fix(frontends/lean): bug when handling identifiers in tactics 
This bug was reported by Jeremy in the Lean Google group:
https://groups.google.com/forum/?utm_medium=email&utm_source=footer#!msg/lean-discuss/ZKJ8WPPEVJA/n05x6rPRzvMJ
 2015-04-22 16:03:22 -07:00
Leonardo de Moura
e1a609cad9 fix(tests/lean/interactive/findp): test output to reflect changes in the stdlib 2015-04-22 13:08:56 -07:00
Leonardo de Moura
349cdb3fe7 test(tests/lean): add test showing that the binder type update should not change the parameter order 2015-04-22 13:04:05 -07:00
Leonardo de Moura
a526cd92ac fix(frontends/lean): bug in pretty printer 
this is related to issue #530
 2015-04-22 12:44:08 -07:00
Leonardo de Moura
dc93603b4a feat(frontends/lean): parameter and variable binder type update 
see issue #532
 2015-04-22 12:28:11 -07:00
Leonardo de Moura
91f21c007a feat(frontends/lean): remove 'context' command 2015-04-22 11:32:02 -07:00
Leonardo de Moura
53653c3526 fix(frontends/lean): pretty printing in sections with parameters 
fix #530
 2015-04-21 22:44:09 -07:00
Leonardo de Moura
8e9997e253 chore(tests/lean/interactive/sec_info_bug): remove 'context' command from test 2015-04-21 19:52:01 -07:00
Leonardo de Moura
fe9f4dd95f fix(frontends/lean): another bug in sections with parameters 2015-04-21 19:50:21 -07:00
Leonardo de Moura
3df99e514b fix(frontends/lean): problems with sections 2015-04-21 19:46:57 -07:00
Leonardo de Moura
9fb7aa9f1c chore(tests): remove most occurrences of 'context' command from the test suite 2015-04-21 19:33:21 -07:00
Leonardo de Moura
ce153d01f9 test(tests/lean/sec_notation2): notation nested in namespace/section/section 2015-04-21 19:07:52 -07:00
Leonardo de Moura
52e9ad1a98 feat(frontends/lean): allow persistent notation declaration in sections (when they do not contain parameters) 
see issue #554
 2015-04-21 19:04:06 -07:00
Leonardo de Moura
bf8a7eb9b4 fix(library/scoped_ext): bug in local metadata in sections 
The problem is described in issue #554
 2015-04-21 18:56:28 -07:00
Leonardo de Moura
697a536d9e fix(library/tactic/inversion_tactic): type incorrect term being built by 'cases' tactic 
fixes #545
 2015-04-20 19:24:52 -07:00
Leonardo de Moura
107763a506 fix(frontends/lean): better error message for 'proof ... qed' blocks containing unsolved placeholders 2015-04-20 15:50:37 -07:00
Leonardo de Moura
6f6d106a10 feat(library/tactic): add "check_expr" tactic 
closes #486
 2015-04-19 19:00:05 -07:00
Leonardo de Moura
60e320fd79 feat(frontends/lean): protected constants and axioms 
fixes #527
 2015-04-19 17:45:58 -07:00
Leonardo de Moura
b7ca2a0ec9 fix(library/tactic/exact_tactic): exact and or_else 
fixes #543
 2015-04-19 17:23:09 -07:00
Leonardo de Moura
306087b5d3 refactor(library/data): rename 'countable' to 'encodable', define countable in the usual way, and prove all 'encodable' type is 'countable' 2015-04-19 14:20:47 -07:00
Leonardo de Moura
cc63a40a01 feat(library): enforce name conventions on old nat declarations 2015-04-18 10:50:30 -07:00
Leonardo de Moura
3e5796acb2 fix(tests/lean/abbrev1): to reflect recent changes 2015-04-18 10:40:46 -07:00
Leonardo de Moura
f16eaf8f0f test(tests/lean/run/pickle1): add unpickle/pickle test 2015-04-14 21:32:07 -07:00
Leonardo de Moura
795acc70a6 refactor(library/data/finset): move finset to its own directory 2015-04-09 19:30:09 -07:00
Leonardo de Moura
4416d9b2c5 test(tests/lean/run): add basic tests for finset module 2015-04-09 15:56:41 -07:00
Leonardo de Moura
24f1454c0a fix(tests/lean/interactive/findp): adjust test output to reflect recent changes in the pretty printer 2015-04-08 09:49:22 -07:00
Leonardo de Moura
5d95cb0979 feat(library/tactic): add 'refine' tactic 
closes #482
 2015-04-06 18:36:56 -07:00
Leonardo de Moura
412f03b08b feat(library/tactic/exact_tactic): generate error if 'exact' tactic produces a term containing metavariables 2015-04-06 13:38:53 -07:00
Leonardo de Moura
754276a660 feat(frontends/lean): round parenthesis for [tactic1 | tactic2] 
This commit also replaces the notation for divides
     `(` a `|` b `)`
with
      a `∣` b

The character `∣` is entered by typing \|

closes #516
 2015-04-06 09:24:09 -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
bebe8a4f17 fix(tests/lean/bad_coercions): expected output 2015-04-05 03:00:29 -07:00
Leonardo de Moura
d731a4ab13 feat(library/normalize): add '[unfold-f]' hint 
closes #497
 2015-04-05 03:00:13 -07:00
Leonardo de Moura
d591c63840 feat(frontends/lean/decl_cmds): allow local coercions in contexts 
closes #525
 2015-04-04 15:25:07 -07:00
Leonardo de Moura
8c59f17605 feat(frontends/lean): 'using' expression without 'show' or 'have' 
closes #536
 2015-04-04 15:25:07 -07:00
Leonardo de Moura
4ec0e1b07c feat(frontends/lean): improve calc mode 
Now, it automatically supports transitivity of the form
    (R a b) -> (b = c) -> R a c
    (a = b) -> (R b c) -> R a c

closes #507
 2015-04-04 08:58:35 -07:00
Leonardo de Moura
1150b19598 perf(frontends/lean/elaborator): do not invoke recursive equation compiler when equations still contain metavariables 2015-04-02 23:37:33 -07:00
Leonardo de Moura
f8023403af test(tests/lean/run): add another simple test 2015-04-01 15:49:01 -07:00
Leonardo de Moura
bf142f3f18 fix(tests/lean): adjust tests to reflect changes in the standard library 2015-04-01 15:09:00 -07:00
Leonardo de Moura
0d66d19ba3 feat(tests/lean/run/finset): show that if A has decidable equality, then (finset A) also has it. 2015-04-01 13:19:16 -07:00
Leonardo de Moura
b960e123b1 feat(kernel): add experimental support for quotient types 2015-03-31 22:04:16 -07:00
Leonardo de Moura
82833bcbe8 fix(tests/lean/struct_class): add setoid to expected output 2015-03-31 22:03:57 -07:00
Leonardo de Moura
8c76419c60 fix(frontends/lean/decl_cmds): error localization problem for recursive equations 2015-03-30 13:30:29 -07:00
Leonardo de Moura
ec1a60b02c feat(library/init/logic): add helper function for proving decidable equality 2015-03-30 02:14:26 -07:00
Soonho Kong
8243ed6339 fix(test*.sh): allow spaces in filename 
fix #515
 2015-03-28 23:29:52 -04:00
Leonardo de Moura
75621df52b feat(frontends/lean): uniform notation for lists in tactics 
closes #504
 2015-03-27 17:54:48 -07:00
Leonardo de Moura
242f8ba048 feat(frontends/lean/elaborator): include number of unsolved goals 
See #509
 2015-03-27 14:54:41 -07:00
Leonardo de Moura
0c3fd7427e feat(frontends/lean): add syntax-sugar for fold 
closes #503
 2015-03-25 18:25:48 -07:00
Leonardo de Moura
f2b1752807 fix(frontends/lean/parser): add workaround for #461 2015-03-25 18:09:43 -07:00
Leonardo de Moura
b9e3c474c9 feat(library/tactic): add all_goals tactic 
closes #501
 2015-03-25 17:42:34 -07:00
Leonardo de Moura
49bc56ec07 feat(frontends/lean/pp): improve pretty printer for prefix and postfix notation 
closes #491
 2015-03-25 16:45:58 -07:00
Leonardo de Moura
a1f933886f fix(frontends/lean/structure_cmd): explicit universe levels for structures 
closes #490
 2015-03-25 16:10:30 -07:00
Leonardo de Moura
33d2e8d9d3 test(tests/lean/run): workaround for issue #505 2015-03-25 15:53:50 -07:00
Leonardo de Moura
5f1d827b26 fix(frontends/lean/decl_cmds): assertion violation 
closes #506
 2015-03-25 13:46:23 -07:00
Leonardo de Moura
ac30052a29 fix(library/tactic/rewrite_tactic): apply substitution before trying to rewrite 
closes #487
 2015-03-23 18:32:52 -07:00
Leonardo de Moura
5bf46d1226 fix(library/tactic/inversion_tactic): improve 'cases' tactic for HoTT mode 
closes #481
 2015-03-23 18:06:11 -07:00
Leonardo de Moura
76157ba392 fix(frontends/lean/pp): abbreviations with too much arguments 
closes #480
 2015-03-23 12:16:25 -07:00
Leonardo de Moura
0814e76298 fix(library/tactic/clear_tactic): unexpected failure 
This commit also improves the error message produced by the 'clear' tactic.

fixes #488
 2015-03-23 12:08:15 -07:00
Leonardo de Moura
35f2a61b4d fix(tests/lean): add missing file 2015-03-23 11:35:39 -07:00
Leonardo de Moura
b5acbb2228 fix(frontends/lean/pp): missing parenthesis around abbreviations 
fixes #476
 2015-03-16 17:12:03 -07:00
Leonardo de Moura
fc3a7bac59 feat(frontends/lean): improve error handling inside match-with expressions 2015-03-13 23:25:46 -07:00
Leonardo de Moura
bed0d6df6b fix(frontends/lean/elaborator): inaccessible over coercion 2015-03-13 23:04:45 -07:00
Leonardo de Moura
cfeb426cd7 fix(frontends/lean): pretty print numeral notation from algebra 2015-03-13 18:58:34 -07:00
Leonardo de Moura
362a0ec04c test(tests/lean): tests for error handling improvements 2015-03-13 15:32:25 -07:00
Leonardo de Moura
b88b98ac22 feat(frontends/lean): try to add definition/theorem as axiom when it fails to be processed 
The idea is to avoid a "tsunami" of error messages when a heavily used
theorem breaks in the beginning of the file
 2015-03-13 14:47:21 -07:00
Leonardo de Moura
f5811d6092 feat(frontends/lean): hide subterms that do not contain metavariables 
when generating "unresolved metavariables" error message

closes #473
 2015-03-13 12:42:57 -07:00
Leonardo de Moura
cda19f5aa6 feat(library/tactic/rewrite_tactic): improve rewrite tactic error messages 
closes #471
 2015-03-12 20:49:53 -07:00
Leonardo de Moura
7accd0f1e6 feat(library/tactic/rewrite_tactic): allow rewrite with terms that contains binders 
see discussion at #470
 2015-03-12 18:07:55 -07:00
Leonardo de Moura
3e4d849a4a refactor(kernel/metavar.h): simplify API 2015-03-12 12:50:53 -07:00
Leonardo de Moura
6a78ae7b46 fix(library/tactic/class_instance_synth): enforce consistent behavior in type class resolution 
Auxiliary procedure mk_class_instance was not discarding partial solutions.
This procedure is used by the apply and inversion (aka cases) tactics
 2015-03-12 10:27:05 -07:00
Leonardo de Moura
47a350d888 fix(library/tactic/inversion_tactic): missing condition for applying optimization 2015-03-12 09:11:36 -07:00
Leonardo de Moura
7de3d5771d feat(library/tactic/rewrite_tactic): add eta-reduction support at esimp 
closes #469
 2015-03-12 00:32:31 -07:00
Leonardo de Moura
b5fb7c734e feat(library/tactic/inversion_tactic): remove hypothesis being destructed 
addresses second issue in #468
 2015-03-11 20:42:50 -07:00
Leonardo de Moura
4c6b0dc0e5 fix(library/tactic/expr_to_tactic): tactic_expr_to_id did not take as_atomic annotation into account 
fixes #466
 2015-03-11 08:49:59 -07:00
Leonardo de Moura
4904f7657f test(tests/lean/run): add definition package tests 2015-03-09 08:42:21 -07:00
Leonardo de Moura
f6cd604a44 chore(library/data/bool): enforce naming conventions 2015-03-06 19:20:48 -08:00
Leonardo de Moura
f966634910 feat(frontends/lean): nested dependent pattern matching 2015-03-06 19:18:08 -08:00
Leonardo de Moura
14ca2d407d test(tests/lean/run): add match-with nested in tactic test 2015-03-06 17:47:01 -08:00
Leonardo de Moura
1490bdad49 feat(frontends/lean): add version of 'exact' tactic (sexact) that enforces goal type during term elaboration 2015-03-06 17:34:45 -08:00
Leonardo de Moura
bd8c4315f1 feat(frontends/lean): allow 'match-with' to be used in tactics without prefixing it with 'exact' 2015-03-06 15:49:31 -08:00
Leonardo de Moura
4edd7b9099 fix(library/definitional/equations): allow a function to be the result of a match-with term or recursive definition 2015-03-06 15:08:52 -08:00
Leonardo de Moura
f24d9e84fe feat(frontends/lean): add option 'max_memory' 
Default value is 512Mb
 2015-03-06 13:56:20 -08:00
Leonardo de Moura
3b721fe675 feat(frontends/lean): add missing 'help' command 2015-03-06 13:56:20 -08:00
Leonardo de Moura
daf36803c4 fix(frontends/lean/builtin_exprs): bug in 'using' construct 2015-03-06 13:56:20 -08:00
Leonardo de Moura
368f9d347e refactor(frontends/lean): approach used to parse tactics 
The previous approach was too fragile

TODO: we should add separate parsing tables for tactics
 2015-03-05 18:11:21 -08:00
Leonardo de Moura
28487ede3b feat(frontends/lean/decl_cmds): allow 'empty' set of pattern matching equations 2015-03-05 14:37:29 -08:00
Leonardo de Moura
b73a931c70 fix(frontends/lean/elaborator): missing case 'no-equation' annotation 2015-03-05 14:37:29 -08:00
Leonardo de Moura
039afb4578 feat(frontends/lean): treat "proof t qed" as alias for "by exact t" 2015-03-05 11:12:39 -08:00
Leonardo de Moura
abd238aef0 feat(*): add [quasireducible] attribute 2015-03-04 22:12:49 -08:00
Leonardo de Moura
c6d15dc198 fix(tests/lean/interactive): adjust tests to reflect changes in the standard library 2015-03-04 18:30:31 -08:00
Leonardo de Moura
fde83cd376 fix(tests/lean/hott): adjust tests to reflect changes in the libraries 2015-03-04 09:28:16 -08:00
Leonardo de Moura
18e6e55fc9 chore(tests/lean/interactive/num2): adjust test to reflect changes in the standard library 2015-03-03 16:17:59 -08:00
Leonardo de Moura
fa79b214b8 fix(frontends/lean): allow 'attribute <id> [priority ...]' 2015-03-03 16:17:32 -08:00
Leonardo de Moura
3b73e100dc test(tests/lean/run): add [priority] test using num.sub 2015-03-03 15:59:17 -08:00
Leonardo de Moura
efd096e85c feat(library/init/num): define sub and le for binary numerals 2015-03-03 15:55:16 -08:00
Leonardo de Moura
11aad4449b feat(frontends/lean): add '[semireducible]' attribute 
This commit also renames the elements of reducible_status.
The idea is to use in the C++ implementation the same names used in the
Lean front-end.
 2015-03-03 10:48:36 -08:00
Leonardo de Moura
b254c78c44 refactor(library/algebra): move bundled structures to separate module 
Motivation: performance.
After this commit, the bundled instances do not participate in the
class/instance resolution if we do not import algebra.bundled.
 2015-03-02 18:45:08 -08:00
Leonardo de Moura
8240d7adcd perf(frontends/lean/util): improve univ_metavars_to_params_fn 
We moved to replace_visitor because it uses a more precise cache.
 2015-03-02 18:25:00 -08:00
Leonardo de Moura
c81762970e fix(frontends/lean/elaborator): revert commit ededf4fc6c 
The instantiate_all are needed. See issue #457
 2015-03-02 13:00:54 -08:00
Leonardo de Moura
ededf4fc6c feat(frontends/lean): remove unnecessary instantiate_all's that were messing with error localization 2015-03-01 14:51:44 -08:00
Leonardo de Moura
c772d7bf84 fix(frontends/lean/elaborator): unassigned metavariable when using nested begin-end blocks 
Closes #454
 2015-02-28 09:03:56 -08:00
Leonardo de Moura
dc62bc498f fix(tests/lean/hott/443_b): adjust test to reflect changes in the HoTT library 2015-02-28 08:46:00 -08:00
Leonardo de Moura
cf56935b01 feat(frontends/lean): improve support for user defined tactics 2015-02-27 16:58:25 -08:00
Leonardo de Moura
5b736a2268 feat(frontends/lean): add support for empty match-with expressions 2015-02-26 16:36:15 -08:00
Leonardo de Moura
0b48f406f9 fix(tests/lean/hott): adjust tests to reflect changes in the HoTT library 2015-02-26 10:51:19 -08:00
Leonardo de Moura
68110faa4d feat(frontends/lean/inductive_cmd): allow '|' in inductive datatype declarations 2015-02-25 17:00:10 -08:00
Leonardo de Moura
5ca52d81ec feat(frontends/lean): ML-like notation for match and recursive equations 2015-02-25 16:20:44 -08:00
Leonardo de Moura
3c24461e51 refactor(*): modify '|' binding power, use 'abs a' instead of '|a|', and '(a | b)' instead of 'a | b' 2015-02-25 15:18:21 -08:00
Leonardo de Moura
c04c610b7b feat(frontends/lean): add 'assert H : A, ...' as notation for 'have H [visible] : A, ...' 2015-02-25 14:30:42 -08:00
Leonardo de Moura
383c0d6d4c fix(tests/lean/interactive/findp): adjust test to reflect recent changes in the standard library 2015-02-25 14:08:37 -08:00
Jeremy Avigad
e555531eb6 feat(library/data/int/div): start on div for integers 2015-02-25 14:05:07 -08:00
Leonardo de Moura
96b54a8007 feat(frontends/lean/builtin_exprs): add 'have' notation in 'begin-end' blocks 
It is notation for the assert tactic.
 2015-02-25 14:04:17 -08:00
Leonardo de Moura
909ebfc5f1 feat(frontends/lean/elaborator): try coercions after each overload 
We try only the easy cases since the more general case is too expensive.

closes #444
 2015-02-24 17:41:20 -08:00
Leonardo de Moura
34c36648bb fix(frontends/lean/decl_cmds): constants command 
closes #445
 2015-02-24 16:27:13 -08:00
Leonardo de Moura
42289d4334 feat(library/tactic/class_instance_synth): create class instance synthesis subproblems only for arguments marked with the [] binder annotation 2015-02-24 16:12:39 -08:00
Leonardo de Moura
3ede8e9150 refactor(library): use [] binder annotation when declaring instances 2015-02-24 16:12:39 -08:00
Leonardo de Moura
1cd44e894b feat(library/tactic/class_instance_synth): conservative class-instance resolution: expand only definitions marked as reducible 
closes #442
 2015-02-24 16:12:35 -08:00
Leonardo de Moura
275068641e fix(tests/lean/print_ax2): adjust test output 2015-02-24 13:34:52 -08:00
Leonardo de Moura
4364b7f926 feat(frontends/lean): pp.beta is true by default 
Remark: there is one exception (command: print definition). For this
command pp.beta is still false.
 2015-02-24 12:27:53 -08:00
Leonardo de Moura
1ff6446a63 feat(frontends/lean): nested begin-end blocks 2015-02-24 11:59:27 -08:00
Leonardo de Moura
dc2ac92846 fix(library/definitional/equations): use whnf on recursive definition arguments 
The idea is to expose "hidden" datatypes.
 2015-02-23 22:27:30 -08:00
Leonardo de Moura
787fed95aa fix(library/tactic/inversion_tactic): bug in simpler case (hypotheses were being lost) 2015-02-23 16:10:49 -08:00
Leonardo de Moura
7adecaf494 fix(frontends/lean/structure_cmd): include context/section parameteres/variables that are used in explicit structure parameters 2015-02-23 15:28:43 -08:00
Leonardo de Moura
923fed8612 fix(frontends/lean/structure_cmd): bug in alias generation in the structure command 
This commit (and 75acb3bc66) closes #443
 2015-02-23 15:17:05 -08:00
Leonardo de Moura
75acb3bc66 fix(frontends/lean/structure_cmd): internal name of parameter/variable was being erased 2015-02-23 15:01:27 -08:00
Leonardo de Moura
7d35d18cad fix(library/tactic/rewrite_tactic): bug when matching terms that expanded into projections 2015-02-22 18:23:10 -08:00
Leonardo de Moura
753b9dcd75 fix(tests/lean/hott): adjust tests to reflect changes in standard library 2015-02-22 09:39:27 -08:00
Leonardo de Moura
33e562a7ce fix(frontends/lean/structure_cmd): effect of "include" command in the structure command 
closes #438
 2015-02-19 22:44:51 -08:00
Leonardo de Moura
421a30d75c feat(library): export [reducible] annotations from function namespace to top-level 
see issue #433
 2015-02-16 18:52:41 -08:00
Leonardo de Moura
7fc216183e feat(library/tactic): produce better error message when a tactic fails 
closes #348
 2015-02-16 18:42:15 -08:00
Leonardo de Moura
461c02d790 fix(tests/lean/hott/433): remove bogus comment, and use rewrite tactic 
Fix an issue raised by Floris.
See discussion at
https://github.com/leanprover/lean/issues/433
 2015-02-16 15:45:31 -08:00
Leonardo de Moura
4248ad644d fix(frontends/lean): priority expressions parser 2015-02-14 12:26:06 -08:00
Leonardo de Moura
5cbdd77ad0 feat(library/tactic/rewrite_tactic): improve matcher in rewrite_tactic 
closes #433
 2015-02-13 12:40:55 -08:00
Leonardo de Moura
8ffadce4ab feat(frontends/lean): add "premise" and "premises" command 
It is just an alternative notation for "variable" and "variables"

closes #429
 2015-02-11 18:46:03 -08:00
Leonardo de Moura
04e92e1e96 feat(frontends/lean/parser): reject explicit universe levels in variables and parameters 
This modification was motivated by issue #427
 2015-02-11 16:25:06 -08:00
Leonardo de Moura
a35cce38b3 feat(frontends/lean): new semantics for "protected" declarations 
closes #426
 2015-02-11 14:09:25 -08:00
Leonardo de Moura
eceed03044 feat(frontends/lean): add "except" notation for "open" command, allow multiple metaclasses to be opened in a single "open" command 2015-02-11 11:02:59 -08:00
Leonardo de Moura
1832fb6f54 feat(*): uniform metaclass names, metaclass validation at 'open' command 2015-02-11 10:35:04 -08:00
Leonardo de Moura
9d1cd073c5 feat(frontends/lean): add 'print metaclasses' command 2015-02-11 10:13:20 -08:00
Leonardo de Moura
60fca7575c fix(frontends/lean/pp): bugs when pretty printing abbreviations 2015-02-10 19:06:09 -08:00
Leonardo de Moura
f9832fb89f test(tests/lean/abbrev1): add test for abbreviation command 2015-02-10 18:28:48 -08:00
Leonardo de Moura
014271da8b feat(frontends/lean): better error messages for ill-terminated declarations 2015-02-10 14:38:00 -08:00
Leonardo de Moura
f018fdabb9 refactor(library/kernel_bindings): remove unnecessary procedure 2015-02-07 18:57:46 -08:00
Leonardo de Moura
c04c0e8381 refactor(*): remove transparent_scope hack, replace [strict] with [all-transparent] annotation 2015-02-07 15:19:41 -08:00
Leonardo de Moura
2126b8ec9a feat(library/tactic/apply_tactic): perform class-instance resolution in the apply tactic 
closes #360
 2015-02-06 16:14:03 -08:00
Leonardo de Moura
1e8a975daa feat(frontends/lean): extend parser: rewrite "fold" step 2015-02-06 15:22:34 -08:00
Leonardo de Moura
04f8278c90 test(tests/lean/run): add rewrite tactic test 2015-02-06 14:14:42 -08:00
Leonardo de Moura
5b25da8c43 feat(frontends/lean): add esimp tactic based on rewrite tactic 
closes #358
 2015-02-06 14:13:32 -08:00
Leonardo de Moura
b4139627e5 feat(library/tactic/rewrite_tactic): add option to prevent any kind of constant unfolding when perfoming pattern matching in the rewrite tactic 2015-02-06 13:27:33 -08:00
Leonardo de Moura
78bde6c9e6 test(tests/lean/run): add more rewrite tactic tests 2015-02-06 12:57:42 -08:00
Leonardo de Moura
2e626b29fb feat(library/tactic/rewrite_tactic): allow many constants to be provided in a single rewrite unfold step 2015-02-06 11:03:36 -08:00
Leonardo de Moura
56a46ae61e feat(frontends/lean/parse_tactic_location): make rewrite notation more uniform 2015-02-06 10:31:50 -08:00
Leonardo de Moura
e17ba27596 fix(library/tactic/rewrite_tactic): adjust the behavior of class resolution in rewriter 
The solution is not very satisfactory. I should investigate it more.
 2015-02-05 19:08:47 -08:00
Leonardo de Moura
e097977bac test(tests/lean/run): add more rewrite tactic tests 2015-02-05 14:09:07 -08:00
Leonardo de Moura
ffe0d1186e feat(library/tactic/rewrite_tactic): add "reduce_to" step at rewrite tactic 2015-02-05 13:59:55 -08:00
Leonardo de Moura
116c65bff5 feat(library/tactic/rewrite_tactic): add reduction step to rewrite tactic 2015-02-05 13:42:50 -08:00
Leonardo de Moura
808521223b feat(library/tactic/rewrite_tactic): support constant unfolding in rewrite tactic 2015-02-05 12:58:30 -08:00
Leonardo de Moura
1b73764ad3 fix(tests/lean/run/elim2): adjust test to reflect recent changes 2015-02-05 10:54:00 -08:00
Leonardo de Moura
d6958be7e7 fix(library/tactic/location): replace cache must not be used when only a subset of all occurrences should be replaced at replace_occurrences 2015-02-05 10:50:40 -08:00
Leonardo de Moura
dfad24e3f5 feat(frontends/lean): polish rewrite tactic notation 2015-02-05 10:15:58 -08:00
Leonardo de Moura
0abfa30ead fix(library/tactic/rewrite_tactic): elaboration bug in the rewrite tactic steps/elements 2015-02-05 10:01:18 -08:00
Leonardo de Moura
15efadfbdc feat(frontends/lean/parse_rewrite_tactic): cleanup rewrite tactic notation 
Make a rewrite command sequence explicit.
 2015-02-04 20:16:24 -08:00
Leonardo de Moura
14c72e82f6 feat(library/tactic/rewrite_tactic): add support for rewriting hypotheses 2015-02-04 20:04:19 -08:00
Leonardo de Moura
90eb5c8ca5 test(tests/lean/hott): add test for rewriter in the HoTT version 2015-02-04 19:33:08 -08:00
Leonardo de Moura
61a029d9df fix(tests/lean/rewrite_loop): notation 2015-02-04 19:21:26 -08:00
Leonardo de Moura
d0171ffe7a test(tests/lean/run): add more rewrite tactic examples 2015-02-04 19:19:46 -08:00
Leonardo de Moura
89fde9d829 feat(library/tactic/rewrite_tactic): add maximum number of iterations threshold to rewrite tactic 
The idea is to avoid nontermination.
 2015-02-04 16:13:15 -08:00
Leonardo de Moura
0c8eaa38c8 test(tests/lean/run): add basic rewriter test 2015-02-04 15:30:18 -08:00
Leonardo de Moura
2a6ccb252e test(tests/lean/extra): add regression tests for issue #422 2015-02-04 10:55:03 -08:00
Leonardo de Moura
f79f43c702 refactor(library/match): use "special" meta-variables instead of free variables to represent placholders in the higher-order matcher 2015-02-03 15:15:04 -08:00
Leonardo de Moura
10357f3f53 fix(tests/lean/nonexhaustive): remove line "warning: imported file uses 'sorry'" from test produced output 2015-02-01 21:25:52 -08:00
Leonardo de Moura
36cfb7fac0 test(tests/lean/bad_set_option): add tests for bad 'set_option' command 2015-02-01 20:20:35 -08:00
Leonardo de Moura
9d1e312c12 test(tests/lean/extra): add extra tests for 'print' command 2015-02-01 20:20:26 -08:00
Leonardo de Moura
ed85ac254a test(tests/lean): add more tests for error messages 2015-02-01 20:04:22 -08:00
Leonardo de Moura
3f37c0e739 test(tests/lean/run): add 'export' command test 2015-02-01 19:57:26 -08:00
Leonardo de Moura
7d9d89bae6 test(tests/lean/extra): add test for saving recursive equation pre-terms 2015-02-01 19:49:14 -08:00
Leonardo de Moura
2403d555ee test(tests/lean/bad_eqns): add tests for definition package error messages 2015-02-01 19:36:06 -08:00
Leonardo de Moura
6cd4972a84 fix(tests/lean): adjust tests to reflect changes in the standard library 2015-02-01 11:36:38 -08:00
Leonardo de Moura
15716c1471 feat(frontends/lean/calc_proof_elaborator): reject proofs with metavariables in the calc-assistant 2015-02-01 11:11:27 -08:00
Leonardo de Moura
143143e94c fix(library/tactic/inversion_tactic): missing normalization step in the inversion_tactic 2015-02-01 10:38:30 -08:00
Leonardo de Moura
d52af105d7 feat(frontends/lean/decl_cmds): allow many constants to be set in the same attribute command 2015-01-31 23:55:14 -08:00
Leonardo de Moura
ea9a9d63d1 test(tests/lean): add tests for structure command error messages 2015-01-30 09:52:42 -08:00
Leonardo de Moura
7c59c959db fix(tests/lean/interactive): do not compare output of trace using non-deterministic commands such as "WAIT ms" 2015-01-30 09:52:42 -08:00
Leonardo de Moura
e75828b756 test(tests/lean/interactive): add tests for options structure.eta_thm and structure.proj_mk_thm 2015-01-29 16:52:23 -08:00
Leonardo de Moura
e9d8a960d9 test(tests/lean/interactive): add test for proof_state info 2015-01-29 16:44:10 -08:00
Leonardo de Moura
c74da8bea2 test(tests/lean/interactive): add tests for coercion and overload info 2015-01-29 16:39:27 -08:00
Leonardo de Moura
f04e462bf3 test(tests/lean/interactive): add more tests for lean server 2015-01-29 16:30:07 -08:00
Leonardo de Moura
e9e1f86b7f fix(library/app_builder): many bugs, add use_cache option, add tests 2015-01-29 15:30:31 -08:00
Leonardo de Moura
5bb2a41c64 feat(library/reducible): expose Lua API for reducible hints 2015-01-29 10:37:15 -08:00
Leonardo de Moura
e4b5e07498 fix(frontends/lean/elaborator): apply substitution before compiling pre-tactics into tactics 
closes #415
 2015-01-28 13:32:56 -08:00
Leonardo de Moura
94519b48b1 fix(tests/lean): adjust tests to reflect changes in the standard library 2015-01-27 11:37:17 -08:00
Leonardo de Moura
ad4c7c20f9 fix(kernel/inductive/inductive): fix assertion violation when K is applied to type incorrect term 2015-01-27 11:22:14 -08:00
Leonardo de Moura
e2c41fca75 feat(frontends/lean): modify syntax for local notation 
The idea is to make it uniform with the syntax for defining local
attributes.
 2015-01-26 11:51:17 -08:00
Leonardo de Moura
b4d6f6e3ed feat(frontends/lean): 'attribute' command is persistent by default 2015-01-26 11:51:17 -08:00
Leonardo de Moura
a1eeb0a6a1 fix(library/print): typo in is_used_name 
closes #408
 2015-01-25 08:58:08 -08:00
Leonardo de Moura
4f2e0c6d7f refactor(frontends/lean): add 'attribute' command 
The new command provides a uniform way to set declaration attributes.
It replaces the commands: class, instance, coercion, multiple_instances,
reducible, irreducible
 2015-01-24 20:23:21 -08:00
Leonardo de Moura
b5c4e603db feat(frontends/lean): allow parameters to be used in sections 
Restriction:
- coercions and notations cannot be defined in parametric sections

closes #401
 2015-01-23 17:42:19 -08:00
Leonardo de Moura
42b5b1e679 test(tests/lean): add new test for scoping rules 2015-01-22 11:41:19 -08:00
Leonardo de Moura
880faf89e0 feat(frontends/lean/structure_cmd): add implicit_infer_kind annotation to structure command 
closes #354
 2015-01-21 18:12:29 -08:00
Leonardo de Moura
12674114a4 feat(shell): set default behavior to "trusted" 
closes #402
 2015-01-21 16:25:09 -08:00
Leonardo de Moura
f2e878dbe7 fix(tests/lua/res1): adjust test to recent modifications 2015-01-20 16:26:41 -08:00
Leonardo de Moura
260795f981 fix(frontends/lean/structure_cmd): collect universe levels that only occur in structure parameters 
fixes #395
 2015-01-19 22:18:09 -08:00
Leonardo de Moura
002050fa97 feat(frontends/lean): increase binding power of ! and @ 
Remark: I did not add the constant "app".
Reason: It would break the standard library in many places.
Moreover, the current "max" is not just the binding power of
application, but also the binding power of identifiers, (, [, ...
It would be weird to call it "app"

closes #388
 2015-01-19 18:40:33 -08:00
Leonardo de Moura
6fd0d452d3 test(tests/lean/run): adjust tests to reflect recent changes 2015-01-19 18:00:14 -08:00
Leonardo de Moura
edcc92d9c7 feat(frontends/lean): remove 'using' from structure instance command 2015-01-17 09:38:10 -08:00
Leonardo de Moura
fed96c9e0b test(tests/lean/run): add structure instance example 2015-01-17 09:27:15 -08:00
Leonardo de Moura
f9d7480f5c feat(frontends/lean): notation for creating structure instances 2015-01-16 17:14:30 -08:00
Leonardo de Moura
bfd679d52d feat(frontends/lean/structure_cmd): allow user to reference parent structures when defining new fields 
See new test for an example.

closes #371
 2015-01-16 13:04:48 -08:00
Leonardo de Moura
6c07ca5d41 perf(library/print): improve is_used_name 2015-01-15 19:01:13 -08:00
Leonardo de Moura
91366c989d test(tests/lean/run/finbug): add problematic definition test 2015-01-13 18:49:37 -08:00
Leonardo de Moura
37e852ba61 feat(frontends/lean/elaborator): improve error message for metavariable in inaccessible position on equation lhs 2015-01-13 14:38:25 -08:00
Leonardo de Moura
e5a8c67d22 fix(library/definitional/equations): assertion violation 2015-01-13 11:57:14 -08:00
Leonardo de Moura
1fbfe59a9a feat(library/tactic/goal): when listing context/goal variables, collect vars of same type in one line 
closes #391
 2015-01-13 11:14:44 -08:00
Leonardo de Moura
75d7e4ab9e feat(frontends/lean): add 'end' token to match expressions 2015-01-10 12:35:29 -08:00
Leonardo de Moura
d6eccd7c18 test(tests/lean/run): add match test 2015-01-10 10:43:24 -08:00
Leonardo de Moura
b172229a72 feat(frontends/lean): add 'match' expressions 
We reuse the equations infrastructure to compile them.
 2015-01-10 10:11:13 -08:00
Leonardo de Moura
6df9ffe5f6 fix(frontends/lean/elaborator): solve placeholders before invoking equantions compiler 2015-01-10 09:18:27 -08:00
Leonardo de Moura
a3bc1b0cd5 fix(library/definitional/equations): add more equation validation to avoid obscure error message 2015-01-09 18:52:21 -08:00
Leonardo de Moura
2e4a2451e6 refactor(library/reducible): simplify reducible/irreducible semantics 2015-01-08 18:52:18 -08:00
Leonardo de Moura
0ffb7c080f fix(tests/lean/run/inv_bug2): adjust test to reflect changes at data.vector 2015-01-08 12:11:52 -08:00
Leonardo de Moura
698754b2bb feat(library/definitional/equations): display elaborated equation lhs's when there are missing cases 2015-01-08 12:00:47 -08:00
Leonardo de Moura
4e49e73585 refactor(library/init/logic): add inhabited related functions, rename inhabited.default to default 2015-01-07 18:45:58 -08:00
Leonardo de Moura
1fab144aa7 refactor(library/init/nat): rename constants 
closes #387
 2015-01-07 18:26:51 -08:00
Jeremy Avigad
50f03c5a09 refactor(library/data/nat/order): make nat order an instance of linear_ordered_semigroup, rename various theorems 2015-01-07 18:18:28 -08:00
Leonardo de Moura
a3a6697f44 feat(library/definitional/equations): mutually recursive functions for mutually recursive datatypes 2015-01-06 14:07:17 -08:00
Leonardo de Moura
fb1cb3c623 test(tests/lean/run): define tree_list length function using recursive equations 
tree_list is part of a mutually inductive datatype.
 2015-01-06 11:57:34 -08:00
Leonardo de Moura
559ee3e3e1 fix(util/buffer): bug in expand method 
fixes #385
 2015-01-06 11:42:40 -08:00
Leonardo de Moura
6451cad38d test(tests/lean/run): define list head using recursive equations 2015-01-05 19:50:34 -08:00
Leonardo de Moura
3325d791de fix(library/definitional/equations): bug in recursive application elimination 2015-01-05 17:17:14 -08:00
Leonardo de Moura
cbae6a2ca0 test(tests/lean/run): define list filter function using recursive equations 2015-01-05 17:05:01 -08:00
Leonardo de Moura
a24a7f7fa1 test(tests/lean/run) define vector last and unzip functions using recursive equations 2015-01-05 17:04:55 -08:00
Leonardo de Moura
eedc31f7e9 fix(library/definitional/equations): bug in "complete" transition 2015-01-05 16:27:29 -08:00
Leonardo de Moura
3889b60152 feat(library/definitional/equations): allow inductive datatype parameters in recursive equations 2015-01-05 15:56:28 -08:00
Leonardo de Moura
d8f3bcec67 feat(library/init/logic): add 'arbitrary' 
It is identical to default, but it is opaque.
That is, when we use 'arbitrary A', we cannot rely on the particular
value selected.
 2015-01-05 13:27:09 -08:00
Leonardo de Moura
0d84943d52 test(tests/lean/run): show that nat has decidable equality using recursive equations 2015-01-05 12:41:18 -08:00
Leonardo de Moura
fd332e411d test(tests/lean/run): add more overlapping patterns examples 2015-01-05 12:25:14 -08:00
Leonardo de Moura
b46c377aa2 feat(library/definitional/equations): add "complete" transition for overlapping patterns 2015-01-05 11:49:27 -08:00
Leonardo de Moura
fdef3e5407 feat(library/definitional/equations): add support for reflexive datatypes in the definitional package 2015-01-05 11:13:35 -08:00
Leonardo de Moura
5e228d92d2 fix(library/definitional/equations): missing case 2015-01-04 20:49:53 -08:00
Leonardo de Moura
f07475667b test(tests/lean/run): define vector map using recursive equations 2015-01-04 19:56:50 -08:00
Leonardo de Moura
7ff03e2846 test(tests/lean/run): define vector diagonal using recursive equations 2015-01-04 17:58:35 -08:00
Leonardo de Moura
7488378445 test(tests/lean/run): define list append using recursive equations 2015-01-04 17:58:24 -08:00
Leonardo de Moura
7fca862fc3 test(tests/lean/run): define fibonacci using recursive equations 2015-01-04 17:47:18 -08:00
Leonardo de Moura
faf78ce3e6 feat(library/definitional/equations): brec_on compilation 2015-01-04 17:45:13 -08:00
Leonardo de Moura
5bf8141af2 test(tests/lean/hott): add test to demonstrate limitations of the current compilation procedure 2015-01-02 23:18:35 -08:00
Leonardo de Moura
92b6c06a21 test(tests/lean/run): add basic pattern matching compilation test 2015-01-02 22:22:20 -08:00
Leonardo de Moura
c66826787a test(tests/lean/run): add basic pattern matching compilation test 2015-01-02 22:07:31 -08:00
Leonardo de Moura
7f7d318b22 feat(library/definitional/equations): add dependent pattern matching compilation 2015-01-02 22:06:40 -08:00
Jeremy Avigad
1eea75b6fc fix(library/data/nat/div,tests/lean/run/ppbeta): make decidable for dvd transparent, name change in ppbeta 2014-12-26 16:44:43 -05:00
Jeremy Avigad
25394dddb7 refactor(library): change mul.left_id to mul_one, and similarly for mul.right_id, add.left_id, add.right_id 2014-12-23 21:14:36 -05:00
Jeremy Avigad
486bc321ff refactor(library/data/nat): rename theorems 2014-12-23 21:14:35 -05:00
Leonardo de Moura
2be83fbff7 test(tests/lean): remove data.nat dependency 2014-12-23 17:42:56 -08:00
Leonardo de Moura
264c88d332 test(tests/lean/hott): add tele_eq example using HoTT library 2014-12-22 09:43:16 -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
70f7ec3cf2 test(tests/lean/hott): add test for 'cases' tactic 2014-12-20 11:36:32 -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
2521dbb39e refactor(hott): use same name convention for sigma in the HoTT and standard libraries 2014-12-19 18:46:06 -08:00
Leonardo de Moura
1e2fc54f2f refactor(library/init/sigma): rename sigma.dpair->sigma.mk, sigma.dpr1->sigma.pr1, sigma.dpr2->sigma.pr2 2014-12-19 18:23:08 -08:00
Leonardo de Moura
9eea32b076 refactor(library/init/datatypes): change implicit arguments of sum.inl and sum.inr 2014-12-19 18:07:13 -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
1797e2846f fix(tests/lean/run): replace "open [notation]" with "open [notations]" 2014-12-17 18:28:38 -08:00
Leonardo de Moura
43633085b9 fix(tests/lean): adjust tests to recent changes in the lean libraries 2014-12-16 13:28:43 -08:00
Leonardo de Moura
86f3d029c7 test(tests/lean/extra): more tests for equations compiler 2014-12-15 19:22:17 -08:00
Leonardo de Moura
abe129aa4f refactor(library): rename theorems "iff.flip_sign -> not_iff_not_of_iff" and "decidable_iff_equiv -> decidable_of_decidable_of_iff" 2014-12-15 19:17:51 -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
Jeremy Avigad
3e9a484851 refactor(library/logic/connectives): rename theorems 2014-12-15 15:05:44 -05:00
Leonardo de Moura
c6ebe9456e feat(library/data/nat): add "bounded" quantifiers 
Later, we will add support for arbitrary well-founded relations
 2014-12-13 15:42:38 -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
c9365db41b test(tests/lean/extra): more tests for equation elaborator 2014-12-12 15:43:41 -08:00
Leonardo de Moura
477d79ae47 refactor(library/init): move more theorems to logic 2014-12-12 13:50:53 -08:00
Leonardo de Moura
d6c8e23b03 refactor(library/init/logic): move theorems to library/logic 2014-12-12 13:24:17 -08:00
Leonardo de Moura
29aaa21f2a fix(tests/lean/interactive): adjust test to reflect changes in the standard library 2014-12-11 19:53:41 -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
b01cf73a91 feat(library/init/logic): add is_true and is_false 2014-12-11 18:14:03 -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
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
4342454339 test(tests/lean/hott): add test for no_confusion construction for HoTT 2014-12-09 15:41:54 -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
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
466b671752 fix(tests/lean/interactive/coe): adjust test to reflect changes in the standard library 2014-12-05 22:27:03 -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
1a813fc720 test(tests/lean/run/nested_rec.lean): add nested recursion example based on well-founded recursion package 2014-12-03 22:11:01 -08:00
Leonardo de Moura
b6a1c118f4 fix(tests/lean/whnf): make sure the test does not produce 'sorry' 2014-12-03 21:12:33 -08:00
Leonardo de Moura
173e84c299 fix(tests/lean/struct_class): adjust test result to reflect recent changes 2014-12-03 20:32:33 -08:00
Leonardo de Moura
811bc6a31f feat(library/init/measurable): add 'measurable' type class 2014-12-03 18:54:24 -08:00