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584 commits

Author SHA1 Message Date
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
Leonardo de Moura
cbdfb0dcdc feat(frontends/lean/elaborator): (Pi/forall) intro in class inference, closes #77 2014-09-07 19:59:34 -07:00
Leonardo de Moura
2631979f5c fix(library/scoped_ext): section/context should not affect namespace 2014-09-07 19:59:34 -07:00
Leonardo de Moura
3310eb3dfc feat(frontends/lean): remove restriction on implict arguments, add new test that demonstrates the new feature 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-09-07 12:29:32 -07:00
Leonardo de Moura
5549295c47 fix(frontends/lean/inductive_cmd): bug when elaborating inductive tyoe parameters 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-09-06 11:38:32 -07:00
Leonardo de Moura
bbff564a1c feat(frontends/lean): persistent notation in sections 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-09-06 11:14:20 -07:00
Leonardo de Moura
b5f595c432 fix(frontends/lean/inductive_cmd): bugs when declarating inductive datatypes in sections, fixes #141, fixes #142 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-09-05 19:17:09 -07:00
Leonardo de Moura
6632a50015 refactor(library): add namespaces 'or', 'and' and 'iff' 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-09-04 21:25:21 -07:00
Leonardo de Moura
68d9bef860 refactor(library): add 'eq' and 'ne' namespaces 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-09-04 18:41:06 -07:00
Leonardo de Moura
2bc6f92d33 refactor(library): add 'and' namespace 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-09-04 17:44:53 -07:00
Leonardo de Moura
364bba2129 feat(frontends/lean/inductive_cmd): prefix introduction rules with the name of the inductive datatype 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-09-04 17:26:36 -07:00
Leonardo de Moura
8743394627 refactor(kernel/inductive): replace recursor name, use '.rec' instead of '_rec' 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-09-04 15:04:57 -07:00
Leonardo de Moura
653141135d chore(tests/lean): add missing tests 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-09-04 15:04:57 -07:00
Leonardo de Moura
f9a90b9920 feat(frontends/lean): add 'export' command 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-09-03 18:37:01 -07:00
Leonardo de Moura
5e18e6609c feat(frontends/lean): add 'as' clause to 'open' command 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-09-03 17:37:02 -07:00
Leonardo de Moura
e51c4ad2e9 feat(frontends/lean): rename 'using' command to 'open' 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-09-03 16:00:38 -07:00
Leonardo de Moura
0f9478d91e feat(frontends/lean): add 'class' command back 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-09-02 15:04:23 -07:00
Leonardo de Moura
8dec18018c refactor(library/data/list): avoid placeholders '_', make first argument of false_elim implicit 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-09-01 19:44:04 -07:00
Jeremy Avigad
6ffd719c1a refactor(library/logic): move identities from classical to identities 2014-08-29 22:28:22 -07:00
Leonardo de Moura
1e80a9dfe9 feat(frontends/lean): avoid exponential blowup when processing let-expressions with a lot of sharing, cleanup show-expression 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-08-28 16:27:52 -07:00
Leonardo de Moura
d536475e49 refactor(library): more implicit_args for: and_assoc, and_comm, or_assoc, or_comm, if_pos, if_neg 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-08-28 11:10:04 -07:00
Leonardo de Moura
6b7e79b62f feat(library/data/nat): mark more arguments implicit 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-08-28 10:38:58 -07:00
Jeremy Avigad
00a049a667 refactor(library/logic): rename connectives -> core, basic -> connectives 2014-08-27 18:43:24 -07:00
Leonardo de Moura
2d78387541 refactor(library/logic/basic): rename absurd_elim to absurd, delete contrapos and trivial_not_true theorems 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-08-27 18:34:09 -07:00
Leonardo de Moura
477b7b4811 fix(tests/lean/run/class_coe): adjust test to reflect library changes 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-08-27 17:55:42 -07:00
Leonardo de Moura
a8d58fdd33 refactor(library): mark absurd_elim argument as implicit 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-08-26 18:27:39 -07:00
Leonardo de Moura
c11fd6b0d2 fix(tests/lean/run): adjust tests 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-08-25 21:39:46 -07:00
Leonardo de Moura
04d9eb17d1 feat(kernel/conveter): improve support for proof irrelevant in the converter 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-08-25 11:19:18 -07:00
Leonardo de Moura
42a8fb5965 chore(tests/lean/run/matrix): simplify same_dim_irrel proof 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-08-25 09:27:19 -07:00
Leonardo de Moura
60d5e87a66 test(tests/lean/run): add matrix test 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-08-25 09:04:39 -07:00
Leonardo de Moura
cbc81ea6c5 chore(*): minimize dependencies on tests 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-08-24 19:58:48 -07:00
Leonardo de Moura
dbaf81e16d refactor(library): remove unnecessary 'standard' subdirectory 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-08-23 18:08:09 -07:00
Jeremy Avigad
47a1c00a6d refactor(library/standard): collect notation in general_notation 2014-08-23 17:53:02 -07:00
Leonardo de Moura
a5f0593df1 feat(*): change inductive datatype syntax 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-08-22 15:46:10 -07:00
Leonardo de Moura
626cd952e7 test(tests/lean/run): add overload test 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-08-22 15:23:33 -07:00
Leonardo de Moura
937c465685 fix(library/unifier): too much reduction 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-08-21 21:37:51 -07:00
Leonardo de Moura
6cf73b51e2 fix(library/unifier): bug in occurs_check, the dependency may be eliminated by reducing term 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-08-21 17:56:18 -07:00
Leonardo de Moura
725f5ba0a0 feat(frontends/lean): use 'begin-end' instead of 'proof-qed' for blocks of tactics, closes #81 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-08-21 16:58:25 -07:00
Jeremy Avigad
6264fb52d6 fix(lean/library/standard): fix tests, more cleanup 2014-08-20 18:04:31 -07:00
Leonardo de Moura
f5987b7bda refactor(library/unifier): make it easier to add new options to the unifier 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-08-20 17:30:08 -07:00
Leonardo de Moura
b60c9d9ecc test(tests/lean/run): add test 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-08-20 16:46:19 -07:00
Leonardo de Moura
f0d50e0d33 feat(frontends/lean): change the name resolution rules: when in a namespace N that defines C, then C always refers to N.C (i.e., it overrides any alias) 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-08-18 18:58:50 -07:00
Leonardo de Moura
08ae17650b feat(frontends/lean): try overloaded notation and declarations in the order they were defined 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-08-18 18:58:50 -07:00
Leonardo de Moura
919f02983e feat(frontends/lean/elaborator): case-split on coercions that cannot be resolved by postponing 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-08-18 18:58:50 -07:00
Leonardo de Moura
4a96fefd96 fix(library/unifier): bug in unifier priority queue 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-08-18 18:58:50 -07:00
Leonardo de Moura
1436212a34 fix(library/unifier): use depth-first search strategy for solving class-instance constraints 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-08-16 13:51:24 -07:00
Leonardo de Moura
670bfe24f5 chore(build): remove hott library directory, and move hott tests 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-08-15 13:30:56 -07:00
Leonardo de Moura
094459504b fix(tests/lean/run): adjust test to changes in the library 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-08-15 13:27:18 -07:00
Leonardo de Moura
60ab6d3bd8 feat(frontends/lean): remove feature that in declarations such as (A B : Type), forced A and B to be in the same universe 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-08-12 17:40:30 -07:00
Leonardo de Moura
70c0eda9fc feat(frontends/lean): make sure all scopes are closed in the end of the module 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-08-07 17:08:59 -07:00
Leonardo de Moura
1a67e69678 feat(library/scoped_ext): force user to end a scope with an identifier matching the one used in beginning of scope, closes #30 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-08-07 16:59:08 -07:00
Leonardo de Moura
9e6c5695be fix(library/unifier): make sure the imitation step is type correct, fix ensure_sufficient_args 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-08-07 16:09:45 -07:00
Leonardo de Moura
4ad7e709aa feat(frontends/lean): default for inductive types, closes #32 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-08-07 07:52:37 -07:00
Leonardo de Moura
069f217215 fix(frontends/lean/elaborator): use full local context for metavariables due to coercions and overloads 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-08-05 17:21:21 -07:00
Leonardo de Moura
d1924097d5 feat(library/match): add 'local' backtracking 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-08-05 10:09:00 -07:00
Leonardo de Moura
e6ffda0c51 feat(library/match): add basic match_plugin that just invokes whnf before failing 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-08-05 08:37:03 -07:00
Leonardo de Moura
56d151ef7f feat(frontends/lean): 'partial' aliases. closes #24 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-08-04 22:08:10 -07:00
Leonardo de Moura
938b4e8421 test(tests/lean/run): add unicode in identifiers test 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-08-02 20:05:46 -07:00
Leonardo de Moura
fbc4a7af3b feat(library/unifier): when unifier.expensive == true, then use only restrict higher-order unification (a fragment slightly more general than higher-order pattern matching) for solving class-instance constraints 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-08-02 14:30:25 -07:00
Leonardo de Moura
5e2185cfbe feat(library/unifier): postpone as much as possible universe constraints of the form ?m1 =?= max(l1, l2) and ?m1 =?= imax(l1, l2) where ?m1 occurs in the right hand side. When there is nothing else to be done, try to solve them by reducing to ?m1 = l1 and ?m1 = l2. 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-08-02 09:14:35 -07:00
Leonardo de Moura
3795d466c1 fix(frontends/lean/elaborator): provide type information for expressions using '@' operator, and strict function applications 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-08-01 20:57:24 -07:00
Leonardo de Moura
4cb8fb20fe fix(frontends/lean/elaborator): bug when mixing string and non-strict implict arguments 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-08-01 10:58:20 -07:00
Leonardo de Moura
8e6324185a fix(tests/lean): adjust tests to new library structure 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-08-01 09:37:23 -07:00
Leonardo de Moura
6ca80b5000 feat(frontends/lean): add 'sorry' 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-07-31 18:35:57 -07:00
Leonardo de Moura
de05c041c7 feat(library/unifier): add flag for enabling/disabling expensive extensions in the unifier 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-07-31 16:46:16 -07:00
Leonardo de Moura
f57fc33442 fix(library/unifier): bug that was making unifier miss solutions, and add a new case-split that tries to solve flex_rigid constraints by putting the rhs into whnf 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-07-31 16:46:16 -07:00
Leonardo de Moura
9637ceb86e feat(frontends/lean): allow user to provide a terminator for 'foldr' and 'foldl' 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-07-30 15:04:44 -07:00
Leonardo de Moura
450131692a fix(library/converter): missing constraint on eta expansion 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-07-30 10:43:47 -07:00
Leonardo de Moura
936bb2744b fix(library/unifier): add a flag to sign that a choice constraint owns a metavariable ?m, that is, it has the right to assign ?m, and the unifier should postpone any other constraint that tries to assign ?m 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-07-29 17:32:55 -07:00
Leonardo de Moura
b15f1bb8c7 fix(frontends/lean/elaborator): apply coercions in definitions 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-07-29 13:55:39 -07:00
Leonardo de Moura
501cae37e5 fix(frontends/lean/parser): bug in check_constant_next (when invoked inside of a section) 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-07-29 13:04:58 -07:00
Leonardo de Moura
105c29b51e refactor(library/standard): use new coding style, rename bool.b0 and bool.b1 to bool.ff and bool.tt 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-07-28 19:59:38 -07:00
Leonardo de Moura
4b2e403023 test(tests/lean/run): add more tests sent by Cody 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-07-27 12:17:38 -07:00
Leonardo de Moura
faee08591f fix(*): make sure elaborator and type_checker use the same "rules" for treating opaque definitions 
This is a big change because we have to store in constraints whether we can use the "relaxed" rules or not.
The "relaxed" case says that when type checking the value of an opaque definition we can treat other opaque definitions in the same module as transparent.

Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-07-27 12:12:54 -07:00
Leonardo de Moura
6ca120bf77 test(tests/lean/run): add Cody's file to test suite 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-07-27 08:17:46 -07:00
Leonardo de Moura
23af5ab217 fix(library/unifier): eager whnf application 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-07-26 10:37:02 -07:00
Leonardo de Moura
e79b0b11cf test(tests/lean/run): another test for the unifier 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-07-25 20:55:05 -07:00
Leonardo de Moura
cf44c80ffb fix(library/inductive_unifier_plugin): do not try to solve type incorrect constraints 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-07-25 16:00:38 -07:00
Leonardo de Moura
7b84503133 fix(library/unifier): do not let a unification plugin to 'prioritize' a flex-flex constraint, and add missing case 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-07-25 15:03:57 -07:00
Leonardo de Moura
0f12e5a35b fix(library/inductive_unifier_plugin): unification problem failure on problems with inductive datatypes 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-07-25 13:49:45 -07:00
Leonardo de Moura
21176c61fe fix(tests/lean): move crash.lean to different directory 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-07-25 08:48:35 -07:00
Leonardo de Moura
e7c7d5718a fix(frontends/lean/pp): fix bug in the pretty printer 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-07-25 08:30:30 -07:00