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107 commits

Author SHA1 Message Date
Leonardo de Moura
4ec0e1b07c feat(frontends/lean): improve calc mode 
Now, it automatically supports transitivity of the form
    (R a b) -> (b = c) -> R a c
    (a = b) -> (R b c) -> R a c

closes #507
 2015-04-04 08:58:35 -07:00
Leonardo de Moura
75621df52b feat(frontends/lean): uniform notation for lists in tactics 
closes #504
 2015-03-27 17:54:48 -07:00
Jeremy Avigad
765f6f21f8 fix(library/algebra/ring.lean): allow degenerate semirings and rings, but not degenerate ordered_semirings and ordered_rings. Closes #478. 2015-03-25 18:29:06 -07:00
Leonardo de Moura
9b577a7b3e feat(frontends/lean): add 'migrate' command 2015-03-14 21:48:00 -07:00
Leonardo de Moura
3c24461e51 refactor(*): modify '|' binding power, use 'abs a' instead of '|a|', and '(a | b)' instead of 'a | b' 2015-02-25 15:18:21 -08:00
Jeremy Avigad
cfdaffb6f5 feat/refactor(library/data/nat): do some housecleaning, add facts to div 2015-02-25 14:05:07 -08:00
Leonardo de Moura
a35cce38b3 feat(frontends/lean): new semantics for "protected" declarations 
closes #426
 2015-02-11 14:09:25 -08:00
Leonardo de Moura
2ffdbba8b0 feat(library): replace same 'calc' proofs with 'rewrite' 2015-02-05 10:39:25 -08:00
Jeremy Avigad
77e8439012 feat(library/data/nat/div): add theorems for coprime, etc. 2015-02-03 13:50:59 -08:00
Jeremy Avigad
95d79e7bda refactor(library/data/nat): merge comm_semiring, make minor fixes 2015-02-01 11:17:44 -08:00
Jeremy Avigad
8d5a7a96b6 feat(library/data/nat/div): revise theorems, add lcm 2015-01-31 21:52:35 -08:00
Jeremy Avigad
928fc3ab81 feat(library/algebra/order,library/data/{nat,int}/order): make gt, ge reducible, add transitivity rules 2015-01-26 20:38:21 -05:00
Jeremy Avigad
0c04c7b0d2 fix(library/data/nat,int): make structure instances reducible 2015-01-26 20:38:21 -05:00
Jeremy Avigad
58057c5d99 feat(library/algebra/ordered_group): add abs 2015-01-21 15:46:17 -08:00
Leonardo de Moura
2e13e81fe0 refactor(library/data/nat/order): use record/structure instance expression 
Motivation: do not rely on a specific argument ordering
 2015-01-19 17:39:59 -08:00
Jeremy Avigad
b68ce77650 refactor/feat(library/data/nat): fix up sub and div, rename theorems, add theorems 2015-01-13 11:56:25 -05:00
Jeremy Avigad
0dcf06000b refactor(library/data/int/sub): rename theorems, add theorems, clean up 2015-01-12 16:28:42 -05:00
Leonardo de Moura
1fab144aa7 refactor(library/init/nat): rename constants 
closes #387
 2015-01-07 18:26:51 -08:00
Jeremy Avigad
42c328e781 refactor(library/data/nat/basic): rename pred.zero and pred.succ 2015-01-07 18:18:28 -08:00
Jeremy Avigad
50f03c5a09 refactor(library/data/nat/order): make nat order an instance of linear_ordered_semigroup, rename various theorems 2015-01-07 18:18:28 -08:00
Jeremy Avigad
cecabbb401 refactor(library/data/int,library/algebra): make int an instnance of ordered ring, rename theorems 2014-12-26 16:25:05 -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
Jeremy Avigad
9d2587c79b refactor(library/data/int/basic): make the integers an instance of ring 2014-12-17 13:32:38 -05:00
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
d6c8e23b03 refactor(library/init/logic): move theorems to library/logic 2014-12-12 13:24:17 -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
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
e2ceb86884 feat(library/data/nat/order): add calc_trans commands for lt and le 2014-11-17 23:44:27 -08:00
Leonardo de Moura
6c7e23ecaa refactor(library): use 'reserve' notation in the standard library 2014-10-21 15:39:47 -07:00
Leonardo de Moura
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
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
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
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
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
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
9988914189 refactor(library/logic): move files in classes directory to core 2014-09-16 13:13:01 -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
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
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
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
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
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
dbaf81e16d refactor(library): remove unnecessary 'standard' subdirectory 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-08-23 18:08:09 -07:00
Renamed from library/standard/data/nat/order.lean (Browse further)