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Author SHA1 Message Date
Leonardo de Moura
15779c5d1e refactor(data/list): use '!' operator, and new name convention for declaration names 2014-10-05 13:10:35 -07:00
Leonardo de Moura
efaeeb0726 refactor(data/nat/sub): use new policy for marking implicit arguments and '!' operator 2014-10-05 12:39:13 -07:00
Leonardo de Moura
fa96596bf7 refactor(data/int/order): use '!' operator 2014-10-05 11:44:18 -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
e91a64fb38 chore(library/logic): fix comments 2014-10-05 11:11:48 -07:00
Leonardo de Moura
73aa024c31 refactor(library/logic): remove 'core' subdirectory 2014-10-05 10:50:13 -07:00
Leonardo de Moura
0f90d10a13 refactor(logic/core/eq): use sections 2014-10-05 10:19:50 -07:00
Leonardo de Moura
317e910054 refactor(library/data/bool): use new style 2014-10-05 09:50:55 -07:00
Leonardo de Moura
5a927b6db4 refactor(library/logic/cast): define heq using inductive datatypes 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-10-03 21:40:51 -07:00
Leonardo de Moura
a52b21c92d refactor(library): using section variables 2014-10-02 18:25:00 -07:00
Leonardo de Moura
d5cad765a0 feat(frontends/lean): enforce new semantics for section 'variables' 
The library file logic/core/connectives uses the new feature.
 2014-10-02 17:55:34 -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
f78d831de3 refactor(frontends/lean): remove hardcoded Type', and define it using notation 2014-10-02 14:29:51 -07:00
Leonardo de Moura
76d21900a2 feat(library): add aliases for some sorts 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
d42fd657fe refactor(library): is_inhabited "theorems" should be "definitions", they are "data" 2014-10-02 09:00:34 -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
a978e30c81 refactor(library/data/nat): rename to_nat to of_num 2014-10-01 17:52:33 -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
bc6ebf34be feat(library/data/bool): do not use ! as notation for bnot, rename band/bor -> and/or 2014-10-01 17:00:03 -07:00
Leonardo de Moura
3657d4c3ab feat(frontends/lean): coercion num -> int even when nat is not open, closes #219 
I also had to mark the coercions as reducible.
Otherwise, given the constraint

          ?M (int.of_num 0) =?= (int.of_nat (nat.to_nat 0))

the unifier will not generate the solution

          ?M := fun x, x
 2014-10-01 11:09:10 -07:00
Leonardo de Moura
3ca1264f61 refactor(library): mark 'decidable' theorems as definitions 
If we don't do that, then any 'if' term that uses one of these theorems
will get "stuck". That is, the kernel will not be able to reduce them
because theorems are always opaque
 2014-09-30 09:02:37 -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
397395bbc9 feat(frontends/lean): allow user to associate priorities to class-instances, closes #180 2014-09-28 12:20:42 -07:00
Floris van Doorn
3a95734fae feat(library): changes in eq.lean sigma.lean and category.lean 
in eq.lean, make rec_on depend on the proof, and add congruence theorems for n-ary functions with n between 2 and 5
in sigma.lean, finish proving equality of triples
in category.lean, define the functor category, and make the proofs of the arrow and slice categories easier for the elaborator
 2014-09-26 19:45:23 -04:00
Floris van Doorn
05fb3aa060 feat(library/data/int): remove duplicate theorem, fix one sorry 2014-09-26 19:45:23 -04:00
Floris van Doorn
5396e422d2 feat(library): add constructions of categories, some changes in eq, sigma and path 
in eq, add theorem for proof irrelevance and congruence for binary functions
in sigma, add some support for triplets
in path, comment out two unneccesary definitions
in category, add Cat, slice, coslice, product and arrow categories, also add fully bundled approach
 2014-09-26 19:45:23 -04:00
Leonardo de Moura
86f06a54ea refactor(library/data/vector): rename 'vec' to 'vector' 2014-09-19 16:20:50 -07:00
Leonardo de Moura
e430dc8bab feat(frontends/lean): add 'irreducible' as syntax sugar for 'reducible [off]' 2014-09-19 15:54:32 -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
5d8c7fbdf1 refactor(frontends/lean): replace '[private]' modifier with 'private 
definition' and 'private theorem', '[private]' is not a hint.
 2014-09-19 15:54:32 -07:00
Leonardo de Moura
97b1998def refactor(frontends/lean): replace '[opaque]' modifier with 'opaque 
definition', '[opaque]' is not a hint, but a kind of definition
 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
93c2c30310 feat(frontends/lean): allow transient coercions, i.e., coercions 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
Leonardo de Moura
4b51d50ad4 fix(frontends/lean/elaborator): coercion overloading 2014-09-16 15:12:20 -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
7ea6a17ae8 feat(library/data/num): add 'mul' and 'add' for binary numerals 2014-09-16 08:05:00 -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
b7023ce1d8 fix(frontends/lean/placeholder_elaborator): do not truncate stream of 
solutions during class-instance resolution, closes #183

For example, in theorem inverse_unique at category.lean, implicit
arguments are synthesized for inverse_compose. The first solution H' is
not good, and produces a type incorrect solution
 2014-09-12 16:12:23 -07:00
Leonardo de Moura
a305012ce5 fix(library/data/category): mark definitions as abbreviations 2014-09-12 09:28:33 -07:00
Leonardo de Moura
c8e20ff3c0 fix(library/data/category): minor problem that was being masked by bug #182, fixes #183 2014-09-11 16:58:32 -07:00
Floris van Doorn
7f1977694f feat(library/data/category.lean) the definition of category doesn't depend on 'mor' anymore; make iso a class; add theorems 2014-09-11 16:39:47 -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
8c11dc1ecd chore(library/data/quotient): rename aux.lean to util.lean (fix problem with cloning lean repository on Windows machine) 
See
http://stackoverflow.com/questions/3689137/error-git-checkout-index-unable-to-create-file
for additional details
 2014-09-11 14:57:15 -07:00
Leonardo de Moura
746f5bff0d refactor(library/data/list/basic): cleanup 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-09-10 16:42:49 -07:00
Leonardo de Moura
1a896a670c refactor(library/data/list): cleanup, rename concat to assoc 2014-09-10 08:02:18 -07:00
Leonardo de Moura
9ac5f28b03 refactor(library/logic/core/eq): cleanup 2014-09-09 19:15:11 -07:00
Leonardo de Moura
b4d765ff2e refactor(library/logic/core/cast): cleanup 2014-09-09 19:11:03 -07:00
Leonardo de Moura
9b9adf8831 refactor(library): replace decidable_eq with abbreviation 2014-09-09 16:09:05 -07:00
Leonardo de Moura
bd1bc336fb feat(library/coercion): add simple trick for defining coercions to function-class in a convenient way, closes #31 2014-09-09 14:36:36 -07:00
Leonardo de Moura
38a4852e7d feat(library/hott): add 'path' namespace 2014-09-09 14:03:45 -07:00
Leonardo de Moura
ff9a07500d feat(library/data/int/basic): create alias for int.int 2014-09-09 14:03:44 -07:00
Leonardo de Moura
5087f03889 refactor(library/logic/classes/decidable): rename 'decidable_eq_to_decidable' theorem to 'of_decidable_eq' 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
35e68fea76 feat(library/logic/classes/decidable): generalize 'by_cases' theorem 2014-09-08 00:16:20 -07:00
Leonardo de Moura
fa25ddc8e6 chore(library/data/int/basic): remove unnecessary 'hinding' clause 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-09-07 22:50:43 -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
c446327ec3 feat(library/data/list): add mem_is_decidable and not_mem_find theorems 2014-09-07 21:22:07 -07:00
Leonardo de Moura
f9b62c53e6 feat(library/data/nat): add nat.is_inhabited theorem 2014-09-07 19:59:34 -07:00
Leonardo de Moura
48e5a2b6ad feat(library/classes/inhabited): add dfun_inhabited theorem 2014-09-07 19:08:31 -07:00
Leonardo de Moura
4e2f5572f3 feat(library/data/vector): add vec.is_inhabited theorem 2014-09-07 19:08:31 -07:00
Leonardo de Moura
fea516af24 feat(frontends/lean/elaborator): allow Pi/forall local instances 2014-09-07 18:16:33 -07:00
Leonardo de Moura
c378a58cc2 feat(frontends/lean): add [class] modifier for inductive datatypes as a shortcut for 'class' command. 2014-09-07 18:16:33 -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
Floris van Doorn
02d72e4c40 feat(library/data/category): add vector 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-09-05 09:57:04 -07:00
Floris van Doorn
e9fc4f14a0 feat(library/data/category): add category theory 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-09-05 09:56:57 -07:00
Floris van Doorn
d2a4bb8a27 feat(library/data/empty): add false.to_empty and false.rec_type theorems 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-09-05 09:31:27 -07:00
Leonardo de Moura
561753e7f1 refactor(library/data/sigma): cleanup module 2014-09-05 08:01:24 -07:00
Leonardo de Moura
28f025c6d7 refactor(library/logic/core): use subscripts 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-09-04 22:43:30 -07:00
Leonardo de Moura
9412e604c8 refactor(library/data): cleanup datatypes 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-09-04 22:31:52 -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
7500761114 refactor(library/data/nat/basic): remove unnecessary nat_ 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-09-03 16:14:29 -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
f891485a26 refactor(library): use '[protected]' modifier 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-09-03 15:13:03 -07:00
Leonardo de Moura
6077b3158c fix(library): remove unnecessary [fact] modifier 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-09-02 16:06:55 -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
Leonardo de Moura
aace5c37cd refactor(library/data/subtype): elaborator does not need help anymore (i.e., 'show'-expression) for this file 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-09-01 19:04:15 -07:00
Jeremy Avigad
39825d2dc9 fix(library): rename congr class to congruence 2014-08-29 22:28:22 -07:00
Jeremy Avigad
6ffd719c1a refactor(library/logic): move identities from classical to identities 2014-08-29 22:28:22 -07:00
Soonho Kong
fcb6c71517 chore(library): add .project file 2014-08-29 10:31:16 -07:00
Soonho Kong
226f301044 chore(library/.gitignore): update 2014-08-29 10:31:16 -07:00
Leonardo de Moura
b43313ec43 fix(library/nat/div): remove unnecessary '_''s 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-08-28 17:40:57 -07:00
Jeremy Avigad
8094884c85 feat(library/data/nat/div.lean): remove dependence on funext 2014-08-28 17:37:32 -07:00
Jeremy Avigad
1864fc2f6c refactor(library): move more notation to general_notation 2014-08-28 17:37:32 -07:00
Leonardo de Moura
b51fa2b547 chore(library): minor cleanup 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-08-28 13:04:17 -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
Jeremy Avigad
1011a8022c refactor(library/logic/connectives): make dependence prop <- eq <- basic 2014-08-27 20:46:07 -04:00
Leonardo de Moura
e7fd8f54c4 fix(library/Makefile): ignore flycheck generated files in the Makefile, fixes #101 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-08-27 08:36:32 -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
9bea23111f feat(library/logic/connectives/basic): add not_not_em theorem 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-08-26 18:07:09 -07:00
Leonardo de Moura
0099a7b224 refactor(library/logic/connectives/eq): simplify eq_rec_on_id proof 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-08-26 18:07:09 -07:00
Leonardo de Moura
44c597724b fix(frontends/lean): fail if theorem type has metavariables after type elaboration (and before proof elaboration) 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-08-26 09:01:17 -07:00
Leonardo de Moura
99438f0ee0 chore(library): add 'universe polymorphism' to list of extra feat 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-08-25 23:00:50 -07:00
Jeremy Avigad
5eedca08ea refactor(library): set up and document standard/classical/hott imports 2014-08-25 22:57:55 -07:00
Jeremy Avigad
413517b86d fix(library): correct markdown directories, revise defaults for logic and data 2014-08-25 22:57:55 -07:00
Leonardo de Moura
9715d06f4a feat(library): minor cleanup, replace 'refl _' with 'rfl', define equivalence relation for sets 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-08-25 22:54:44 -07:00
Leonardo de Moura
3903be34a4 feat(frontends/lean): process theorem statement independently of proof, thus we have the same behavior in sequential and parallel compilation modes, closes #84 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-08-25 21:26:17 -07:00
Leonardo de Moura
7cb2ca62f4 refactor(Makefile): do not use full path on makefile rules 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-08-23 18:28:34 -07:00
Leonardo de Moura
06da0ebaaf refactor(library): rename Makefile.common to Makefile 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-08-23 18:10:39 -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
505b93b7cb refactor(lean/examples/constable.lean): move to library/standard/logic/examples/nuprl_examples.lean 2014-08-23 17:55:00 -07:00
Jeremy Avigad
d0f0e58a85 refactor(library/standard/data/int): split basic.lean into basic.lean and order.lean 2014-08-23 17:53:02 -07:00
Jeremy Avigad
47a1c00a6d refactor(library/standard): collect notation in general_notation 2014-08-23 17:53:02 -07:00
Jeremy Avigad
ad969b4695 feat(library/standard/logic): add identities 2014-08-23 17:53:02 -07:00
Leonardo de Moura
df60ab4ada fix(frontends/lean/calc): allow calc_subst to be defined for multiple operators, allow calc cmds to be organized into namespaces, fixes #65 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-08-23 16:45:04 -07:00
Leonardo de Moura
e602c4ba49 feat(frontends/lean): change multicomment to /- ... -/ 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-08-22 17:55:13 -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
fdd37fb1f3 chore(library/standard/data/sum): remove hints, they are not needed after the fix 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-08-21 21:44:02 -07:00
Jeremy Avigad
1fdc483ab9 fix(library/standard/data/int): remove misnamed file 2014-08-21 21:41:28 -07:00
Jeremy Avigad
02fba6e949 feat(library/standard/hott/fibrant.lean): add fibrant to library 2014-08-21 21:41:28 -07:00
Jeremy Avigad
05d0089381 feat(library/standard/sum.lean): add properties of sum 2014-08-21 21:41:28 -07:00
Jeremy Avigad
3afad10a72 feat(library/standard): add decidability of le for int 2014-08-21 21:41:28 -07:00
Leonardo de Moura
c4cc837e34 refactor(library/standard): define abbreviations using '@' 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-08-21 18:39:38 -07:00
Leonardo de Moura
07bc0727e2 feat(frontends/lean): 'let [inline]' is the default 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-08-21 18:24:22 -07:00
Leonardo de Moura
0df87bae24 chore(library/standard/data/nat/div): remove TODO 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-08-21 17:58:03 -07:00
Leonardo de Moura
ab404beb01 chore(library/standard/data/nat/order): remove unnecessary 'proofs' 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-08-20 21:51:41 -07:00
Leonardo de Moura
38f46b1290 feat(library/standard/data/nat/order): add le_decidable, lt_decidable, ge_decidable, gt_decidable 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-08-20 21:47:37 -07:00
Leonardo de Moura
129bb5fa09 chore(library/standard/data/int/basic): remove TODO's that were addressed by recent improvements 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-08-20 19:04:48 -07:00
Jeremy Avigad
d78c26977b feat(library/standard/data/nat/div): port div 2014-08-20 18:04:31 -07:00
Jeremy Avigad
6264fb52d6 fix(lean/library/standard): fix tests, more cleanup 2014-08-20 18:04:31 -07:00
Jeremy Avigad
148d475421 feat(library/standard): port int, and reorganize a lot 2014-08-20 18:03:24 -07:00
Jeremy Avigad
ad26c7c93c feat(library/standard/data/quotient): import quotient from lean 0.1 2014-08-20 18:03:24 -07:00
Leonardo de Moura
be5d034b6e chore(library/standard): remove workarounds 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-08-20 16:46:19 -07:00
Leonardo de Moura
9588336c15 refactor(kernel/type_checker): remove "global" constraint buffer from type_checker, and use constraint_seq instead 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-08-20 16:46:19 -07:00
Soonho Kong
76d310da8b chore(library/.gitignore): add TAGS 2014-08-15 20:55:38 -07:00
Soonho Kong
009e9fb3e6 feat(library/Makefile.common): add tags target 2014-08-15 20:52:29 -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
Jeremy Avigad
5b7fb1f61a feat(library/standard/classes): add nonempty 2014-08-15 13:06:27 -07:00
Jeremy Avigad
39c1683546 feat(library/standard/logic): add class nonempty 2014-08-15 12:58:58 -07:00
Jeremy Avigad
2d69303344 feat(library/standard): add sigma types and subtypes, make inhabited constructive 2014-08-15 12:58:58 -07:00
Jeremy Avigad
a1645c5ce5 feat(library/standard/hott/path.lean): add theorems and clean up file 2014-08-15 12:58:58 -07:00
Jeremy Avigad
7d7655c3f1 refactor(library/standard): integrate hott with standard library 2014-08-15 12:58:58 -07:00
Jeremy Avigad
218c9dfc81 feat(library/hott): begin porting Coq HoTT 2014-08-15 12:58:58 -07:00
Jeremy Avigad
0ea2d287e1 feat(library/standard): add classes for relations 2014-08-15 12:58:58 -07:00
Soonho Kong
caa47b9a70 fix(library): add LEAN_VERSION_FILE to Makefile.common 2014-08-14 18:21:58 -07:00
Leonardo de Moura
2225a2acc5 feat(library/Makefile.common): generate .ilean files 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-08-14 18:05:48 -07:00
Leonardo de Moura
e1c97d1fc4 fix(library): remove LEAN_VERSION_FILE from Makefile.common, it breaks the build on Linux 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-08-14 18:05:48 -07:00
Soonho Kong
6f2c14be23 feat(library/Makefile.common): add dependency on bin/version 
This is related with issue #43.

[skip ci]
 2014-08-14 15:46:13 -07:00
Soonho Kong
87632622ee chore(library): add .gitignore 
[skip ci]
 2014-08-14 15:31:57 -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
f319d084d4 feat(library/Makefile.common): use new --cache/-c option at Makefile.common 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-08-10 11:20:08 -07:00
Leonardo de Moura
f6ba6da4b5 fix(library/standard): add missing 'end' of namespace 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-08-07 17:52:51 -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
Soonho Kong
e0bc5915fb fix(library/standard): remove long comments introduced by b2c2d1d 2014-08-07 11:59:59 -07:00
Soonho Kong
8d4c7b4b2c fix(library/hott/Makefile): specify LEAN_OPTIONS "--hott" 2014-08-07 09:59:15 -07:00
Leonardo de Moura
59f6cb5962 fix(build): delete incorrect/old .d and .olean files, detect errors when generating .d files. 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-08-04 13:58:48 -07:00
Leonardo de Moura
d5bb7d45ec fix(library/unifier): constraint priority in the unifier, and remove hack from if.lean 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-08-04 13:58:47 -07:00
Leonardo de Moura
47d49643b0 feat(library/standard/logic/connectives/if): add more general if_congr theorem 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-08-04 13:58:47 -07:00
Soonho Kong
d8ae285f93 fix(library/Makefile.common): clean remove olean/d files recursively 
[skip ci]
 2014-08-04 11:47:24 -07:00
Leonardo de Moura
94efd51fc5 chore(library/standard/logic/connectives/if): cleanup 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-08-03 23:11:52 -07:00
Leonardo de Moura
c3f57cdb1c feat(library/standard/logic/classes): add 'by_contradiction' theorem for decidable propositions 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-08-03 22:58:12 -07:00
Leonardo de Moura
ae2e0fd3dc feat(library/standard/logic/connectives/if): add 'if-then-else' congruence theorem 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-08-03 21:41:01 -07:00
Leonardo de Moura
f3cb5f2f84 feat(library/standard/logic/connectives/quantifiers): add some theorems for simplifier 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-08-03 20:03:49 -07:00
Leonardo de Moura
aeebd942f2 refactor(library/standard): use relative paths in some files in the standard library 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-08-02 20:04:27 -07:00
Leonardo de Moura
4b030c5d5f feat(library/module): relative module path 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-08-02 19:47:55 -07:00
Leonardo de Moura
700c911cf7 chore(library/standard/logic/class/decidable): add missing 'end' 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-08-02 17:00:01 -07:00
Leonardo de Moura
148836d14b feat(library/standard/data/option): add basic theorems for option types 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-08-02 16:59:01 -07:00
Jeremy Avigad
b832b2e33e refactor(library/standard/data/nat): stylistic changes 2014-08-01 21:22:54 -07:00
Jeremy Avigad
b5db9a4797 feat(library/standard/data/nat): port most recent nat to lean 0.2 2014-08-01 21:22:53 -07:00
Jeremy Avigad
4b05e70762 feat(library/standard/logic/axioms): add import default 2014-08-01 21:22:53 -07:00
Jeremy Avigad
77931f2af8 feat(library/standard): add markdown documentation 2014-08-01 21:22:53 -07:00
Soonho Kong
3cb9b4c265 fix(library/Makefile.common): make OSX-compatible 2014-08-01 10:21:40 -07:00
Leonardo de Moura
d27c85e30c fix(library/Makefile.common): avoid error message when .d files do not exist 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-08-01 10:11:01 -07:00
Leonardo de Moura
f75beb8087 fix(library/standard/data/list/basic): remove 'sorry' 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-08-01 09:15:30 -07:00
Jeremy Avigad
b2c2d1dd44 refactor(library/standard): organize files into a hierarchy 2014-08-01 09:11:51 -07:00
Jeremy Avigad
fbaf8b7e77 refactor(library/standard): begin reorganization into hierarchy 2014-08-01 09:11:51 -07:00
Jeremy Avigad
df84c4c2ca refactor(library/standard): clean up logic, reorder arguments to elim rules 2014-08-01 09:11:51 -07:00
Jeremy Avigad
c89c96b913 feat(library/standard/list.lean): add facts about lists 2014-08-01 09:11:51 -07:00
Jeremy Avigad
e846c8c76b index on master: 9dc1baa feat(library/standard/congruence.lean): finish congruence classes for propositional logic 2014-08-01 09:11:51 -07:00
Jeremy Avigad
5847743573 feat(library/standard/congruence.lean): finish congruence classes for propositional logic 2014-08-01 09:11:51 -07:00
Jeremy Avigad
8ea5dad4c0 feat(library/standard/congruence.lean): add class to infer that a function is a congruence with respect to two relations 2014-08-01 09:11:51 -07:00
Jeremy Avigad
09d5d074ec feat(library/standard/list.lean): begin to port lists from lean 0.1 2014-08-01 09:11:51 -07:00
Leonardo de Moura
b279c94037 feat(build): cread .d (dependency) files for .lean files 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-08-01 09:08:16 -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
8ad6d7a98b doc(doc/lean): update Lean tutorial to Lean 0.2, and use org-mode 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-07-28 10:52:09 -07:00
Leonardo de Moura
864fdd37da refactor(library/aliases): aliases are from name to names 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-07-27 21:01:59 -07:00
Leonardo de Moura
5555d620cf feat(library/standard): add or_inl and or_inr as short-hands for the commonly used 'or_intro_left _' and 'or_intro_right _' 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-07-27 17:25:57 -07:00
Leonardo de Moura
99a1966fd6 refactor(library/standard/set): use the same style for mem_inter and mem_union 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-07-27 13:32:59 -07:00
Leonardo de Moura
88130f339e feat(library/standard): add basic set theory that does not rely on classical axioms 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-07-27 13:18:33 -07:00
Leonardo de Moura
3a77226b92 feat(library/standard/bool): add bor_to_or theorem 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-07-27 13:17:55 -07:00
Leonardo de Moura
25f7929ea3 feat(library/standard/bool): add band_assoc and bor_assoc theorems 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-07-27 12:50:57 -07:00
Leonardo de Moura
d9ee994281 feat(library/hott): copy basic files to hott library 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-07-26 19:13:04 -07:00
Leonardo de Moura
abe1dbd7e0 refactor(library/standard): cleanup notation 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-07-25 11:36:28 -07:00
Leonardo de Moura
a450ad5a95 feat(frontends/lean/inductive_cmd): improve notation for declaring 'empty' inductive datatypes 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-07-25 11:24:01 -07:00
Leonardo de Moura
a5b9a7b296 fix(frontends/lean/decl_cmds): support for section declarations with implicit parameters, they must be tagged with '@' when creating aliases 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-07-25 11:10:45 -07:00
Leonardo de Moura
62483b793f feat(library/standard): add notation for symm, trans and subst 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-07-24 22:49:12 -07:00
Leonardo de Moura
ebf34f2fe9 refactor(library/standard): mark 'not' as transparent 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-07-24 22:14:15 -07:00
Leonardo de Moura
d84a4bea5f chore(library/standard): port (an older version of) Floris's nat library to Lean 0.2 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-07-24 20:31:28 -07:00
Leonardo de Moura
fd0deb4555 feat(library/standard): add basic properties of binary functions 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-07-24 17:48:30 -07:00
Leonardo de Moura
bfdf187ce7 refactor(library/standard): rename rec to rec_on 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-07-24 17:01:51 -07:00
Leonardo de Moura
5529ef1056 feat(library/standard): add function 'helper' module 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-07-24 16:29:39 -07:00
Leonardo de Moura
5296275c41 feat(library/standard/logic): add imp_or theorems 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-07-24 12:29:23 -07:00
Leonardo de Moura
08174f904b feat(library/standard/logic): mark 'not equal' as an abbreviation 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-07-24 12:01:09 -07:00
Leonardo de Moura
8adf6e25ef refactor(library/standard/unit): make unit type similar to the one in the hott library 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-07-22 09:56:05 -07:00
Leonardo de Moura
c5cbe1cc2c refactor(library/standard): rename bool_decidable to prop_decidable 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-07-22 09:53:05 -07:00
Leonardo de Moura
b522ea6f2d refactor(library/standard): rename bit to bool 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-07-22 09:49:54 -07:00
Leonardo de Moura
5eaf04518b refactor(*): rename Bool to Prop 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-07-22 09:43:18 -07:00
Leonardo de Moura
b7838f5db7 feat(library/standard/cast): add dcongr2 theorem 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-07-22 05:58:58 -07:00
Leonardo de Moura
1e595e8027 feat(library/standard/decidable): decidable is proof irrelevant 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-07-22 03:54:28 -07:00
Leonardo de Moura
c0f862d88a feat(library/standard): add Diaconescu's theorem 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-07-20 21:15:48 -07:00
Leonardo de Moura
13804f75f9 feat(library/standard/logic): iff is refl, trans, and symm 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-07-20 21:10:30 -07:00
Leonardo de Moura
29b6d1081c feat(library/standard/bool_decidable): cleanup bool_decidable, and remove the artificial dependency to bit 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-07-21 02:42:11 +01:00
Leonardo de Moura
293ed333c7 feat(library/standard/if): cleanup 'if-then-else' theorems 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-07-21 02:40:43 +01:00
Leonardo de Moura
5e8c128b00 feat(library/standard): add more decidable instances 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-07-20 01:10:49 +01:00
Leonardo de Moura
c37b5afe93 feat(library/standard): add decidable class 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-07-20 00:19:32 +01:00
Leonardo de Moura
4a0e701f6d feat(library/standard/bit): add theorems and notation 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-07-20 00:19:32 +01:00
Leonardo de Moura
8b70ffb0a4 feat(library/standard): add equivalence inductive predicate 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-07-20 00:19:31 +01:00
Leonardo de Moura
e817260c6d feat(library/standard): add or_comm, and_comm, ... theorems, cleanup notation 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-07-19 09:29:04 +01:00
Leonardo de Moura
ae2ce356b4 feat(library/hott): use new 'parameters' command 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-07-17 20:49:53 +01:00
Leonardo de Moura
58da037410 feat(library/hott): add more definitions and theorems from the HoTT book 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-07-17 20:24:00 +01:00
Leonardo de Moura
dfe48e6abe feat(library/hott): add more hott definitions 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-07-15 22:42:38 +01:00
Leonardo de Moura
f7317a7139 feat(build): compile HoTT library when building 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-07-15 21:56:36 +01:00
Leonardo de Moura
359bfe93d5 feat(library/hott): add basic HoTT definitions and theorems 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-07-15 21:46:33 +01:00
Leonardo de Moura
f942c6f64c feat(library/standard/classical): add Peirce's law 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-07-13 03:05:34 +01:00
Leonardo de Moura
e3f364e1ee feat(library/standard): add well-founded induction theorem 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-07-13 02:48:40 +01:00
Leonardo de Moura
638bdd5e12 feat(library/standard): add forall and exists theorems 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-07-13 02:48:00 +01:00
Leonardo de Moura
9cb238534d feat(library/standard): add hilbert's choice operator 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-07-13 01:39:35 +01:00
Leonardo de Moura
ea2fffc260 feat(library/standard): add inhabited_exists theorem 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-07-13 00:24:58 +01:00
Leonardo de Moura
0bd943574e fix(library/standard): make sure file can be compiled when processing theorems in parallel 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-07-12 23:55:50 +01:00
Leonardo de Moura
ae2f019c23 refactor(library/standard): reorganize cast and piext theorems 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-07-12 20:24:36 +01:00
Leonardo de Moura
bd82f5e81c chore(library/standard/piext): cleanup hcongr proof 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-07-12 19:08:53 +01:00
Leonardo de Moura
319b1fb8d1 feat(library/standard): add piext axiom, and theorems that follow from it 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-07-12 09:44:46 +01:00
Leonardo de Moura
cd806bfabb refactor(library/standard): move cast and heq to separate file 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-07-12 07:08:12 +01:00
Leonardo de Moura
1d273fcfdd chore(frontends/lean): rename 'obtains' to 'obtain' 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-07-12 06:35:24 +01:00
Leonardo de Moura
24540056c5 feat(library/standard): add basic heq theorems 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-07-12 06:21:00 +01:00
Leonardo de Moura
cf34f75ab5 feat(frontends/lean): add 'obtains' expression 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-07-11 04:08:51 +01:00
Leonardo de Moura
a3be63af73 feat(frontends/lean): add tactic_hint command 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-07-08 15:08:13 -07:00
Leonardo de Moura
08465f049a feat(frontends/lean): remove [class] annotation and 'class' command, they are redundant, we only need [instance] and 'instance' 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-07-07 16:09:30 -07:00
Leonardo de Moura
c16951aba6 fix(library/aliases): aliasing behavior 
The new test '../../tests/lean/run/alias3.lean' demonstrates the issue being fixed.

Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-07-07 15:40:55 -07:00
Leonardo de Moura
d30f387e72 feat(library/standard): add namespace 'pair' 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-07-07 14:48:19 -07:00
Leonardo de Moura
59755289e4 feat(library/unifier): case split on constraints of the form (f ...) =?= (f ...), where f can be unfolded, and there are metavariables in the arguments 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-07-05 15:52:40 -07:00
Leonardo de Moura
a52c9f4e2b feat(library/unifier): add option 'unifier.unfold_opaque', remove option 'unifier.use_exceptions' (the user should not be able to change this) 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-07-05 09:43:16 -07:00
Leonardo de Moura
efabd2280c feat(library/unifier): allow unifier to unfold opaque definitions of the current module 
It is not clear whether this is a good idea or not. In some cases, it seems to do more harm than good.

Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-07-05 00:46:03 -07:00
Leonardo de Moura
9e1d425a45 feat(library/standard): add 'classical' module 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-07-04 22:50:30 -07:00
Leonardo de Moura
00e1a7db23 feat(frontends/lean/elaborator): add class instance elaboration 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-07-04 15:45:50 -07:00
Leonardo de Moura
079672f6f9 feat(frontends/lean): add 'class' and 'instances' infrastructure 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-07-04 14:28:09 -07:00
Leonardo de Moura
a97f82be1a fix(library/standard): orelse notation, avoid conflict with inductive datatype declaration 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-07-04 10:10:05 -07:00