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Author SHA1 Message Date
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
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
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
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
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
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
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
b01cf73a91 feat(library/init/logic): add is_true and is_false 2014-12-11 18:14:03 -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
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
811bc6a31f feat(library/init/measurable): add 'measurable' type class 2014-12-03 18:54:24 -08:00
Leonardo de Moura
e5fc0f90b2 test(tests/lean/run): try different ways to pack mutually recursive datatypes 2014-12-03 15:28:44 -08:00
Leonardo de Moura
9ae96514e0 test(tests/lean/run): use 'cases' tactic 2014-12-03 15:28:22 -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
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
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
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
193fed7061 fix(library/tactic/inversion_tactic): uninitialized variable 2014-11-30 22:41:22 -08:00
Leonardo de Moura
eefe03cf56 fix(tests/lean): adjust tests to modifications to standard library 2014-11-30 21:16:01 -08:00
Leonardo de Moura
dad94eafbe refactor(data/nat/decl): use new naming convention at data/nat/decl.lean 2014-11-30 15:07:09 -08:00
Leonardo de Moura
079bf7f633 test(tests/lean/run/vector): use nat.add 2014-11-30 13:53:02 -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
1a7dd56f0f fix(library/tools/tactic): 'cases' argument precedence 2014-11-29 21:03:45 -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
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
6fbbf66565 test(tests/lean/run/vector): define 'map' on vector using brec_on and new inversion tactic 2014-11-29 13:28:01 -08:00
Leonardo de Moura
7000365a04 fix(tests/lean): to reflect changes in the standard library 2014-11-28 23:03:37 -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
f7deabfd19 feat(library/rename): add notation for rename 2014-11-26 19:02:11 -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
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
df51ba8b7c feat(library/definitional/projection): use strict implicit inference, closes #344 2014-11-25 18:04:06 -08:00
Leonardo de Moura
edc9e4908c test(tests/lean/run): add another subterm example 2014-11-25 16:53:09 -08:00
Leonardo de Moura
f737a140c1 test(tests/lean/run): direct subterm for non-reflexive datatype 2014-11-25 16:22:11 -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
f729762c23 test(tests/lean/run): add test for well_founded relation for mutually recursive datatypes 2014-11-24 14:58:30 -08:00
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
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
919007612a fix(tests/lean): adjust tests since module 'logic' depends on nat 
We need that because of the definitional package
 2014-11-22 17:34:05 -08:00
Leonardo de Moura
5db13da95f test(tests/lean/run/div_wf): cleanup div based on well founded recursion 2014-11-22 09:56:47 -08:00
Leonardo de Moura
064ecd3e3d refactor(library/data/nat): declare lt and le asap using inductive definitions, and make key theorems transparent for definitional package 
We also define key theorems that will be used to generate the
automatically generated a well-founded subterm relation for inductive
datatypes.
We also prove decidability and wf theorems asap.
 2014-11-22 00:19:39 -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
7e7e7c241c test(tests/lean/run/gcd): gcd compiled by hand into wf recursion 2014-11-18 19:34:01 -08:00
Leonardo de Moura
4fbb5cfcca test(tests/lean/run/div_wf): cleanup 2014-11-18 17:59:14 -08:00
Leonardo de Moura
a065c7bf96 test(tests/lean/run/tree_height): experiment with wf relation based on the height 
This is easier to generate than the subterm relation
 2014-11-18 17:57:17 -08:00
Leonardo de Moura
5fbe990c7a test(tests/lean/run): define div using wf package 2014-11-18 13:55:58 -08:00
Leonardo de Moura
5daff18017 test(tests/lean/run): pre-quotient experiment 2014-11-17 18:30:11 -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
a171f8fbc3 test(tests/lean/run): simple diag for square matrices 2014-11-15 18:49:17 -08:00
Leonardo de Moura
1b95b69251 test(tests/lean/run): define subterm relation for vectors 2014-11-15 16:17:51 -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
b87559dac5 test(tests/lean/run): define subterm relation for trees by hand 2014-11-15 13:29:23 -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
00df34a1c4 feat(library/unifier): generalize method process_succ_eq_max_core 2014-11-14 14:25:41 -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
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
edd04881ee fix(library/logic): import prod and unit declarations in logic 
Reason: we need them for automatically generating constructions needed
by the definitional package
 2014-11-12 16:54:50 -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
97609d1625 test(tests/lean/run/nateq): add example that triggered previous modification 2014-11-12 15:11:08 -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
Leonardo de Moura
a3066e3eaa fix(frontends/lean/inductive_cmd): bug in inductive datatype elaborator 2014-11-12 13:10:19 -08:00
Leonardo de Moura
463e70332d test(tests/lean/run): define brec_on and binduction_on for a reflexive type 
We say an inductive type T is reflexive if it contains at least one constructor that
takes as an argument a function returning T.

For reflexive types it doesn't seen to be possible to define a single
brec_on that can eliminate to Type.{>=1} and Prop.
The universe level expressions get too complicated.
Even if we extend the universe constraint solver in the kernel, the
additional complexity might be a problem.

We workaround this issue by defining two versions of brec_on:
  - One (brec_on) that eliminates to Type.{>=1}, and
  - binduction_on that eliminates to Prop.

For non-reflexive types, we can combine both of them.
 2014-11-12 10:52:32 -08:00
Leonardo de Moura
faf90c4b87 test(tests/lean/run): test brec_on on vectors 2014-11-11 17:23:59 -08:00
Leonardo de Moura
f6889951c6 fix(library/definitional/cases_on): bug in inductive datatypes with higher-order recursion 2014-11-11 15:14:08 -08:00
Leonardo de Moura
e65b5884e5 test(tests/lean/run/forest): define brec_on for forests 
Almost everything explicit to get an idea of what needs to be generated automatically.
 2014-11-11 13:16:23 -08:00
Leonardo de Moura
b3e4a689cf test(tests/lean/run): define ackermann function using recursors 2014-11-11 11:06:10 -08:00
Leonardo de Moura
1f92751c4d test(tests/lean/run): fibonacci using well_founded recursion 2014-11-10 12:46:55 -08:00
Leonardo de Moura
363d4a7577 fix(library/definitional/no_confusion): assertion violation 2014-11-10 10:32:03 -08:00
Leonardo de Moura
df5a17cdce feat(frontends/lean/placeholder_elaborator): include type in class-instance resolution trace 2014-11-09 12:06:16 -08:00
Leonardo de Moura
9b9ae128d5 feat(frontends/lean): include file-name and line/col numbers when displaying class-instance resolution trace 2014-11-09 11:47:01 -08:00
Leonardo de Moura
aef1dd9a04 test(tests/lean/run): fibonacci using below_rec_on (aka brec_on) 2014-11-08 22:19:18 -08:00
Leonardo de Moura
1b6e40d3d6 test(tests/lean/run): define below_rec_on (aka brec_on) for vectors 2014-11-08 22:19:18 -08:00
Leonardo de Moura
e8bc0f8249 feat(library/defitional): add no_confusion construction for inductive datatypes that are not propositions 2014-11-08 18:56:52 -08:00
Leonardo de Moura
b5da143fc0 feat(library/defitional): add no_confusion_type construction for inductive datatypes that are not propositions 2014-11-08 15:20:19 -08:00
Leonardo de Moura
f16f215c2a refactor(data/num/string): break into pieces to reduce dependencies 2014-11-07 08:53:14 -08:00
Leonardo de Moura
e993486301 refactor(library/data/num): break into pieces to reduce dependencies 2014-11-07 08:24:29 -08:00
Leonardo de Moura
b3ad8c704a feat(frontends/lean/structure_cmd): allow inheritance from two identical structures, closes #296 2014-11-05 15:01:05 -08:00
Leonardo de Moura
4650791108 feat(frontends/lean): add 'print fields' command 2014-11-05 14:06:54 -08:00
Leonardo de Moura
354baf4d13 test(tests/lean/run): add structure command test 2014-11-05 12:54:03 -08:00
Leonardo de Moura
677e0aeef6 fix(frontends/lean/structure_cmd): accept ': Type' when universe levels are not specified 2014-11-05 12:02:52 -08:00
Leonardo de Moura
defc2478b5 feat(frontends/lean): add 'record' as an alias for 'structure' command 2014-11-05 12:02:52 -08:00
Leonardo de Moura
6944c7d902 fix(frontends/lean/placeholder_elaborator): local context must be adjusted when performing class-instance resolution modulo Pi-abstraction, fixes #293 2014-11-04 18:41:27 -08:00
Leonardo de Moura
d58c3e498d feat(frontends/lean/builtin_cmds): add 'print prefix' command 2014-11-04 08:40:32 -08:00
Leonardo de Moura
b6722a5d33 feat(frontends/lean/structure_cmd): add 'private' modifier for parent structures 
When it is used coercions/instances to parent structure are to registered
 2014-11-03 23:16:49 -08:00
Leonardo de Moura
b24165dc7b feat(frontends/lean/structure_cmd): remove 'cases_on' for structures since it may confuse users, add 'destruct' as alternative name for 'rec_on' 2014-11-03 23:06:33 -08:00
Leonardo de Moura
7897e21a14 feat(frontends/lean/structure_cmd): allow fields to be suppresed, but constructor to be provided 2014-11-03 22:55:51 -08:00
Leonardo de Moura
08b4ce2db9 feat(frontends/lean/structure_cmd): use 'mk' as constructor name when it is not provided 2014-11-03 22:40:08 -08:00
Leonardo de Moura
8f3139231b feat(frontends/lean/structure_cmd): allow structure declarations that contains only a header 2014-11-03 22:17:43 -08:00
Leonardo de Moura
91749d2364 fix(frontends/lean/structure_cmd): modify coercion generation 
The previous coercion was more efficient, but the computation was
getting stuck when processing algebraic structures
 2014-11-03 19:37:11 -08:00
Leonardo de Moura
d2b5af237e refactor(library): use new 'structure' command to define prod and sigma 2014-11-03 18:57:55 -08:00
Leonardo de Moura
ea7470375f fix(tests/lean): to reflect changes in the standard library 2014-11-03 18:46:53 -08:00
Leonardo de Moura
c306bfa83c feat(frontends/lean/structure_cmd): add 'eta' theorem for structures 2014-11-03 18:33:44 -08:00
Leonardo de Moura
186d910d0b feat(frontends/lean/structure_cmd): mark coercion to parents as coercions and instances (when both structures as classes) 2014-11-03 17:55:59 -08:00
Leonardo de Moura
b112f3c582 feat(frontends/lean/structure_cmd): add coercions to parent structures 2014-11-03 17:39:52 -08:00
Leonardo de Moura
7afa69577e feat(frontends/lean/structure_cmd): add aliases for structure decls 2014-11-03 15:50:41 -08:00
Leonardo de Moura
efe1105eb9 fix(frontends/lean): alias generation for composite names was not working 
This is an issue for declarations that generate composite names such as
the inductive datatype packacke.

The commit also fix a bug in the generate of aliases for recursors
 2014-11-03 15:43:58 -08:00
Leonardo de Moura
0f56b5f5b7 test(tests/lean/run): add structure command test 2014-11-03 14:29:17 -08:00
Leonardo de Moura
a2e75159c8 fix(frontends/lean): process choice-exprs at check_constant_next 2014-11-02 19:42:30 -08:00
Leonardo de Moura
df008dc3c3 feat(frontends/lean/inductive_cmd): create a namespace for each declared datatype 2014-11-01 19:15:46 -07:00
Leonardo de Moura
ea55ec4090 feat(frontends/lean/decl_cmds): remove useless name from 'example' commad 2014-11-01 16:12:23 -07:00
Leonardo de Moura
1e6f7cdbb4 chore(frontends/lean/decl_cmds): add 'example' command 
It is like a theorem, but it is discarded after checking
 2014-11-01 11:37:39 -07:00
Leonardo de Moura
94cf10284a fix(frontends/lean/calc_proof_elaborator): bug when inserting symmetry proofs for heq, fixes #286 
The problem was that heq type is
    Pi {A : Type} (a : A) {B : Type} (b : B), Prop

The calc_proof_elaborator was assuming that (a : A) (b : B) were the
last two arguments in any relation supported by calc.

The fix is to remove this assumption.
 2014-11-01 07:30:04 -07:00
Leonardo de Moura
2688ca38bf feat(frontends/lean/inductive_cmd): notation for enumeration types 2014-10-31 19:01:32 -07:00
Leonardo de Moura
d7beabe91c fix(frontends/lean/calc_proof_elaborator): improve calc proof assistant 2014-10-31 09:49:45 -07:00
Leonardo de Moura
17df85f592 feat(frontends/lean/calc_proof_elaborator): add '{...}' if needed in calc proof steps 
This is part of #268
 2014-10-31 00:55:19 -07:00
Leonardo de Moura
591e566472 feat(frontends/lean): try to inject symmetry (if needed) in calc proofs, add calc_symm command for configuring the symmetry theorem for a given operator 
This is part of #268
 2014-10-30 23:24:09 -07:00
Leonardo de Moura
c5a62f8abb feat(frontends/lean): insert ! in calculational proofs when needed 
This is part of #268
 2014-10-30 22:22:04 -07:00
Leonardo de Moura
6107da05db fix(frontends/lean): universe variable is treated as parameter inside section, fixes #283 2014-10-29 19:47:14 -07:00
Leonardo de Moura
9547e2d077 feat(library/tactic): add rotate_left/rotate_right tactics, closes #278 2014-10-29 19:13:55 -07:00
Leonardo de Moura
fe4ea48381 feat(library/definitional/projection): add projection generator, closes #257 2014-10-29 13:13:05 -07:00
Leonardo de Moura
60f32fa709 fix(frontends/lean): begin-end automatic tactic notation bug, fixes #262 2014-10-27 17:12:25 -07:00
Leonardo de Moura
78bc3ef7e4 feat(library/unifier): improve FailLocal/FailCircular failures in the unifier by using normalization 
This improvements was marked as TODO, and was preventing us from
elaborating the example in the new test vector3.lean
 2014-10-27 16:49:29 -07:00
Leonardo de Moura
7516fcad97 feat(kernel/type_checker): add is_stuck method, and improve ensure_pi method, closes #261 2014-10-27 13:16:50 -07:00
Leonardo de Moura
49941ce35b test(tests/lean/run/sigma_no_confusion): define 'no_confusion' for sigma types 2014-10-27 07:26:01 -07:00
Leonardo de Moura
81dc201bab fix(frontends/lean/elaborator): nested begin-end bug 2014-10-26 18:23:30 -07:00
Leonardo de Moura
cc6a96e8ba fix(frontends/lean): improve begin-end construct 2014-10-26 15:47:29 -07:00
Leonardo de Moura
fd60cf6a79 feat(library/tactic/exact_tactic): modify 'exact' tactic semantics, use higher-order unification 
See new node.inj4 theorem, we need the extra power to be able to avoid type information at
    exact (assume e₁ e₂, e₁)
 2014-10-26 10:27:33 -07:00
Leonardo de Moura
8e6de93394 fix(frontends/lean/parser): add two kinds of no_undef_id behavior: to (global) constant; to local constant 2014-10-26 09:47:11 -07:00
Leonardo de Moura
c7f6a6b94e feat(library/definitional/cases_on): automatically add 'cases_on' 2014-10-25 17:22:02 -07:00
Leonardo de Moura
cdcde661ef feat(library/definitional/induction_on): automatically add 'induction_on' 2014-10-25 13:37:04 -07:00
Leonardo de Moura
a7a06ab0f8 feat(library/definitional/rec_on): automatically generate rec_on function for inductive datatypes 2014-10-25 13:08:59 -07:00
Leonardo de Moura
79d0347721 feat(library/tactic): add generalize tactic, closes #34 
Remark: the intros tactic has been added in a different commit: 7d0100a340
 2014-10-23 22:40:15 -07:00
Leonardo de Moura
b83b065d00 feat(library/tactic/apply_tactic): modify heuristic for adding arguments to apply tactic. 2014-10-23 22:36:32 -07:00
Leonardo de Moura
38a9aa2a98 feat(frontends/lean): automatically open 'tactic' namespace (if it is not already open) in 'by' and 'begin-end' expressions 2014-10-23 10:26:19 -07:00
Leonardo de Moura
00f9a10e82 refactor(library/tactic/unfold_tactic): use new 'tactic.expr' to implement 'unfold' tactic 
This change also enabled us to remove hacks used in the tests modified
by this commit.
 2014-10-23 10:26:19 -07:00
Leonardo de Moura
c50227ea6e feat(library/tactic): change apply tactic semantics: goals are not reversed; and dependent arguments are not included 
This commit also adds the tactic rapply that corresponds to the previous
semantics we have been using.
 2014-10-22 18:11:09 -07:00
Leonardo de Moura
e95c7c5f70 refactor(library/tactic/rename_tactic): use new 'tactic.expr' to implement 'intro/intros' tactic 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-10-22 17:29:50 -07:00
Leonardo de Moura
5e15ac0c92 feat(library/tactic): add new approach for embedding non-elaborated expressions into tactics 2014-10-22 17:29:50 -07:00
Leonardo de Moura
6b89080b1a feat(frontends/lean): do not allow user to define notation using tokens ! and @, closes #248 2014-10-21 16:28:36 -07:00
Leonardo de Moura
e24225fabf feat(frontends/lean): validate infixl/infixr/postfix/prefix declarations against reserved notations 2014-10-21 15:39:47 -07:00
Leonardo de Moura
6c7e23ecaa refactor(library): use 'reserve' notation in the standard library 2014-10-21 15:39:47 -07:00
Leonardo de Moura
bb953b80aa feat(frontends/lean): reserve notation, closes #95 2014-10-21 15:39:47 -07:00
Leonardo de Moura
e2fa981e89 fix(frontends/lean/pp): avoid parentheses around atomic notation 2014-10-20 18:08:13 -07:00
Leonardo de Moura
e68007a727 fix(frontends/lean/builtin_tactics): adjust tactics precedence 2014-10-20 17:10:16 -07:00
Leonardo de Moura
9b8f60b739 feat(frontends/lean/builtin_exprs): tolerate dangling ',' in begin-end block 
This is useful when debugging proofs.
 2014-10-20 15:59:49 -07:00
Leonardo de Moura
7d0100a340 feat(library/tactic): add 'intros' tactic 2014-10-20 15:26:16 -07:00
Leonardo de Moura
e6606ef2ac feat(library/tactic): add 'rename' hypothesis tactic 2014-10-14 18:19:34 -07:00
Leonardo de Moura
58c9421bab refactor(library/tactic): elaborate expressions nested in tactics with respect to current goal, save postponed constraints (e.g., flex-flex constraints) closes #44, fixes #70 2014-10-14 17:18:40 -07:00
Leonardo de Moura
b7c1b348d1 feat(frontends/lean/inductive_cmd): don't force user to repeat argument declarations in every datatype in a mutually recursive datatype declaration 2014-10-13 20:53:09 -07:00
Leonardo de Moura
08c0fb3a64 test(tests/lean/run): expand tree example 2014-10-13 07:08:29 -07:00
Leonardo de Moura
5c1d5133dd fix(library/data/prod): make the notation for tuples and product types consistent 2014-10-13 06:48:37 -07:00
Leonardo de Moura
a26618e0f2 feat(frontends/lean): add '[]' notation for marking arguments where class-instance resolution should be applied 2014-10-12 13:06:00 -07:00
Leonardo de Moura
158682219f feat(frontends/lean): allow parameters only in contexts 2014-10-11 17:13:56 -07:00
Leonardo de Moura
f0523a3465 feat(frontends/lean): namespaces also define scope for variables 2014-10-10 16:21:30 -07:00
Leonardo de Moura
0641ee33ce feat(frontends/lean): allow variables anywhere 2014-10-10 16:16:19 -07:00
Leonardo de Moura
235b8975d2 feat(kernel/inductive): K-like reduction in the kernel 
Given (H_1 : a = a), we have that
      eq.rec H_2 H_1
reduces to H_2

This is not exclusive to equality.
It applies to any inductive datatype in Prop, containing only one
constructor with zero "arguments" (we say they are nullary).

BTW, the restriction to only one constructor is not needed, but it is
does not buy much to support multiple nullary constructors since Prop is
proof irrelevant.
 2014-10-10 14:37:45 -07:00
Leonardo de Moura
402a351937 feat(frontends/lean): add 'universes' command 2014-10-10 08:45:59 -07:00
Leonardo de Moura
8f1b6178a7 chore(*): minimize the use of parameters 2014-10-09 07:13:06 -07:00
Leonardo de Moura
8c5d3392c7 fix(library/algebra/category): minor fixes to reflect recent changes, and fix tests 2014-10-08 23:44:09 -07:00
Leonardo de Moura
25fd370c51 fix(frontends/lean): bug when using nested sections and parameters 
see tests/lean/run/section4.lean
 2014-10-08 22:23:20 -07:00
Leonardo de Moura
57c85221fe fix(frontends/lean): collect used universe levels after elaboration in the check command 2014-10-08 22:23:19 -07:00
Leonardo de Moura
eab9321a3b fix(frontends/lean): make all variables/parameters visible for 'variables' command 2014-10-08 22:23:19 -07:00
Leonardo de Moura
757cb46579 test(tests/lean/run): add no_confusion test 2014-10-08 22:23:19 -07:00
Leonardo de Moura
744cee8dd8 feat(frontends/lean): force 'classes' to be declared before instances are declared, closes #228 2014-10-07 18:02:15 -07:00
Leonardo de Moura
d8572e249d feat(frontends/lean/builtin_cmds): add 'print classes' command 2014-10-07 17:30:57 -07:00
Leonardo de Moura
90ece4dd1b feat(frontends/lean): remove tactic hints for specific classes 
The idea is to separate class-instance resolution and tactic framework
as two independent engines.
 2014-10-07 09:44:01 -07:00
Leonardo de Moura
f7e1b67f6c test(tests/lean/run/print): add tests for 'print' cmd 2014-10-05 19:06:29 -07:00
Leonardo de Moura
a0d4d82f3f refactor(data/nat/order): use new policy for marking implicit arguments and '!' operator 2014-10-05 11:36:39 -07:00
Leonardo de Moura
73aa024c31 refactor(library/logic): remove 'core' subdirectory 2014-10-05 10:50:13 -07:00
Leonardo de Moura
7073f036d8 test(tests/lean/run): add additional tests for section parameter/variable and strict implicit argument 2014-10-04 08:15:43 -07:00
Leonardo de Moura
e71d4548de fix(frontends/lean): universe levels associated with section variables should not be fixed in the section 2014-10-04 07:13:19 -07:00
Leonardo de Moura
938e12baa1 feat(frontends/lean/notation_cmd): allow local numeric notation 2014-10-03 13:55:57 -07:00
Leonardo de Moura
fd013e8d07 chore(tests/lean/run/group3): cleanup test 2014-10-03 13:55:57 -07:00
Leonardo de Moura
c0725d1934 refactor(frontends/lean): remove 'including' expressions 2014-10-03 09:09:27 -07:00
Leonardo de Moura
01d4644026 fix(frontends/lean): bug in include/omit commands: in the end of section/context, the configuration must be restored 2014-10-03 08:52:35 -07:00
Leonardo de Moura
4946f55290 refactor(frontends/lean): constant/axiom are top-level commands, parameter/variable/hypothesis/conjecture are section/context-level commands 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-10-02 17:55:34 -07:00
Leonardo de Moura
4cb54ac825 feat(frontends/lean/elaborator): more strict test for bad universe solution 2014-10-02 14:29:51 -07:00
Leonardo de Moura
98e66586e9 feat(frontends/lean/elaborator): elaborator rejects 'Type' if the universe is explicit 2014-10-02 14:29:51 -07:00
Leonardo de Moura
153e3927ac feat(frontends/lean/elaborator): modify '!' semantics: it stops consuming arguments as soon it finds an argument that does not occur in the rest of the type. 2014-10-01 18:50:17 -07:00
Leonardo de Moura
e64d5c4a4a refactor(library/data/nat): use new operator '!' 2014-10-01 18:39:47 -07:00
Leonardo de Moura
716cd4d651 refactor(library): rename namespace eq_ops to eq.ops 2014-10-01 17:51:17 -07:00
Leonardo de Moura
ead827d6b7 feat(frontends/lean): add ! operator the "dual" of @, closes #220 2014-10-01 17:13:41 -07:00
Leonardo de Moura
966366e18e feat(kernel/inductive): relaxed rules for defining datatypes with explicit universes, closes #217 2014-10-01 10:56:05 -07:00
Leonardo de Moura
263b081e69 fix(frontends/lean/inductive_cmd): temporary aliases must take explicit universes into account, fixes #215 2014-10-01 10:24:44 -07:00
Leonardo de Moura
2730e5163e feat(frontends/lean): allow 'sorry' implicit argument to access the whole context, and avoid cryptic error message 
See new test for explanation.
 2014-09-30 18:04:04 -07:00
Leonardo de Moura
a0c37b231f feat(kernel/expr): add hash_bi function that takes binder information into account 2014-09-29 16:44:55 -07:00
Leonardo de Moura
21be308884 feat(frontends/lean/inductive_cmd): infer implicit argument annotation after elaboration, allow user to disable it by using '()' annotation, closes #210 2014-09-29 11:11:17 -07:00
Leonardo de Moura
9c55bbb871 feat(frontends/lean/elaborator): report an error when Type becomes a Prop after elaboration, closes #208 2014-09-29 08:18:10 -07:00
Leonardo de Moura
22e47430b5 feat(library/unifier): add 'on-demand' choice constraints, they are processed as soon as their type does not contain meta-variables anymore 2014-09-27 21:50:39 -07:00
Leonardo de Moura
c775da16ec feat(frontends/lean/elaborator): discard partial solution during 
class-instance resolution, use only tactic_hints associated with
classes, enforce is_strict
 2014-09-25 19:46:08 -07:00
Leonardo de Moura
fd5daa8fda feat(frontends/lean): use coercions to function-class and sort-class in 
function arguments, closes #203
 2014-09-20 09:00:10 -07:00
Leonardo de Moura
86f06a54ea refactor(library/data/vector): rename 'vec' to 'vector' 2014-09-19 16:20:50 -07:00
Leonardo de Moura
4e2377ddfc refactor(frontends/lean): replace '[protected]' modifier with 'protected definition' and 'protected theorem', '[protected]' is not a hint. 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-09-19 15:54:32 -07:00
Leonardo de Moura
08ccd58eb6 feat(frontends/lean): add 'reducible' modifier for controlling which 
definitions are unfolded during elaboration

Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-09-19 15:54:32 -07:00
Leonardo de Moura
baf4c01de8 feat(frontends/lean): definitions are opaque by default 2014-09-19 15:54:32 -07:00
Leonardo de Moura
48dbd13eef feat(frontends/lean): allow transient classes/instances, i.e., 
classes/instances that are not saved in .olean files
 2014-09-19 15:54:32 -07:00
Leonardo de Moura
e3e2370a38 feat(frontends/lean): split 'opaque_hint' command into 'opaque' and 'transparent' 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-09-16 18:03:40 -07:00
Jeremy Avigad
74cb289d48 refactor(library): rename algebra directory to struc, move categories.lean to algebra 2014-09-16 13:13:01 -07:00
Jeremy Avigad
9988914189 refactor(library/logic): move files in classes directory to core 2014-09-16 13:13:01 -07:00
Leonardo de Moura
dffe9a6f17 fix(frontends/lean/elaborator): more robust support for coercions to 
function-class that contains implicit arguments
 2014-09-16 13:08:34 -07:00
Leonardo de Moura
d0d23eb525 fix(frontends/lean/inductive_cmd): improve name resolution in inductive 
command

The new test demonstrates the problem being fixed by this commit
 2014-09-16 09:48:51 -07:00
Leonardo de Moura
8e52c478b1 refactor(library/data/num): add 'succ', 'pred' and 'size' (aka number of bits), 
rename is_inhabited theorems
 2014-09-15 16:05:17 -07:00
Leonardo de Moura
edcbe6fe10 feat(frontends/lean): allow multiple coercions from class A to B, closes #187 
See new tests (for examples)
tests/lean/run/coe10.lean
tests/lean/run/coe11.lean
tests/lean/run/coe9.lean

Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-09-14 12:59:43 -07:00
Leonardo de Moura
029acbd1df feat(library/coercion): better support for coercions to function-class. closes #185 2014-09-12 13:17:20 -07:00
Leonardo de Moura
a2e36e97f2 fix(frontends/lean/builtin_cmds): allow coercion command inside section, fixes #186 2014-09-12 12:13:29 -07:00
Leonardo de Moura
010ecebfea feat(frontends/lean): add proof-qed expression 
Remark: we still have to add support to it in the elaborator.
Right now, it is just an embellished parenthesis.
 2014-09-11 18:14:49 -07:00
Leonardo de Moura
7ffe73b8ca fix(frontends/lean): name clash inside section, fixes #181 2014-09-11 16:37:23 -07:00
Leonardo de Moura
5cff53c447 test(tests/lean/run): add section test 2014-09-11 15:33:20 -07:00
Leonardo de Moura
570879b55f feat(frontends/lean): add declaration to namespace without opening it, closes #161 2014-09-09 18:02:14 -07:00
Leonardo de Moura
efb14d906b chore(tests/lean): add untracked tests 2014-09-09 16:21:30 -07:00
Leonardo de Moura
9b9adf8831 refactor(library): replace decidable_eq with abbreviation 2014-09-09 16:09:05 -07:00
Leonardo de Moura
47e02342bb feat(frontends/lean/elaborator): use whnf in class-instance resolution, closes #160 2014-09-09 15:04:44 -07:00
Leonardo de Moura
abdd784729 feat(shell): start 'lean --server' with 'pp.beta = true' 2014-09-09 14:13:35 -07:00
Leonardo de Moura
187661aa6a feat(library/unifier): consider whnf case-split on flex-rigid constraints whenever the rhs contains a local constant that is not in the lhs 2014-09-09 09:27:26 -07:00
Leonardo de Moura
4088cdc139 chore(frontend/lean/pp_options): use consistent name convention for pp option names 2014-09-09 09:27:26 -07:00
Leonardo de Moura
b4793df653 feat(frontends/lean): rename '[fact]' to '[visible]' 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-09-08 07:47:42 -07:00
Leonardo de Moura
559dd586f2 feat(library): add 'decidable_eq' class 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-09-07 22:23:36 -07:00