Jeremy Avigad
ba78cc42f9
fix(library/data/set/basic.lean, function.lean): fix typos
2015-05-08 19:51:37 +10:00
Leonardo de Moura
0b57f7d00a
refactor(library/tactic): refine interface between tactic and proof-term modes
...
Some constraints were being lost with the previous interface.
This is why we had a workaround in fintype.lean.
We can also remove some hacks we have used in the past.
2015-05-07 18:02:51 -07:00
Floris van Doorn
9893de6194
feat(hit/circle): prove partly that the fundamental group of the circle is int
...
Also add markdown files for nat and int
2015-05-07 16:39:04 -07:00
Floris van Doorn
7cfac38eda
feat(hott): port parts of natural numbers and integers from standard library to HoTT
...
This also involves:
- adding definitions about logic and natural numbers existing in the standard library to init
- porting the current algebraic hierarchy
2015-05-07 16:39:03 -07:00
Leonardo de Moura
e2c1dc92a8
chore(library/data/fintype): add workaround until problem in the elaborator is fixed
2015-05-07 16:32:26 -07:00
Leonardo de Moura
5798ac43de
fix(frontends/lean/structure_cmd): 'structure' command must set unfold-c attribute for auxiliary recursors
...
fixes #582
2015-05-07 09:09:07 -07:00
Leonardo de Moura
84deddcca9
feat(library/tactic/rewrite_tactic): apply 'reflexivity' tactic after 'rewrite' instead of hard coded solution
2015-05-05 20:23:49 -07:00
Leonardo de Moura
7aa0e466a5
test(library): test new 'obtain' expression in the standard library
2015-05-05 18:30:16 -07:00
Leonardo de Moura
616f49c2e4
feat(frontends/lean): improved 'obtains' expression
2015-05-05 18:30:16 -07:00
Jeremy Avigad
f7a610faa3
feat(library/data/set/basic,function): mark set reducible, and add theorem from Haitao Zhang
2015-05-05 08:55:58 -07:00
Leonardo de Moura
11f74363e2
refactor(library): rename 'intersection' to 'inter' in list and finset, add finset abbreviation at top level
2015-05-05 08:53:31 -07:00
Leonardo de Moura
a46abbb9ce
refactor(library/data): test new tactics in the standard library
2015-05-03 21:40:33 -07:00
Leonardo de Moura
3cd8f38b8d
feat(library/data/string): prove that string and char have decidable equality
2015-05-03 21:08:09 -07:00
Leonardo de Moura
4e1146a2d5
refactor(hott,library): test new tactics in the HoTT and standard libraries
2015-05-02 22:22:31 -07:00
Leonardo de Moura
cd17618f4a
refactor(library): replace 'calc_trans', 'calc_symm', 'calc_refl' and 'calc_subst' commands with attributes '[symm]', '[refl]', '[trans]' and '[subst]'
...
These attributes are used by the calc command.
They will also be used by tactics such as 'reflexivity', 'symmetry' and
'transitivity'.
See issue #500
2015-05-02 15:15:35 -07:00
Leonardo de Moura
e8affed020
refactor(library): test new tactics in the standard library
2015-05-01 18:18:29 -07:00
Leonardo de Moura
de369a0a0a
feat(library/tactic/injection_tactic): improve 'injection' tactic
...
see issue #500
2015-05-01 15:49:56 -07:00
Leonardo de Moura
9ba8b284a1
fix(library/tactic/apply_tactic): add eapply, and fix issue #361
2015-05-01 15:08:00 -07:00
Leonardo de Moura
e948dd239c
feat(library/data/list/perm): use new 'injection' tactic
2015-05-01 13:08:36 -07:00
Leonardo de Moura
59b11c815c
refactor(library/data/list/perm): remove unnessary lambda abstractions
...
The contradiction tactic takes care of it.
2015-04-30 14:02:19 -07:00
Leonardo de Moura
9760968b45
refactor(library,hott): use/test new 'contradiction' tactic in the standard and hott libraries
2015-04-30 13:56:12 -07:00
Leonardo de Moura
3912bc24c8
feat(frontends/lean): nicer syntax for 'intros' 'reverts' and 'clears'
2015-04-30 11:00:39 -07:00
Leonardo de Moura
018f768555
chore(library): remove some unnecessary parentheses
2015-04-29 14:39:59 -07:00
Leonardo de Moura
17c07cdb02
feat(library/data/rat/order): define abs and sign for rat before migrate
2015-04-27 12:59:02 -07:00
Jeremy Avigad
7a1064b7e8
refactor(library/algebra/order.lean): rename a field in an order structure
2015-04-27 12:03:41 -07:00
Jeremy Avigad
d8e40d90d6
feat(library/data/rat/order.lean): make rat a linear ordered field
2015-04-27 12:03:41 -07:00
Leonardo de Moura
76c773ad3d
feat(library/data/examples/depchoice): add dependent choice example
2015-04-26 12:56:23 -07:00
Leonardo de Moura
072bf0b3b4
refactor(library): make sure "choose" compute inside the kernel
2015-04-25 23:10:48 -07:00
Leonardo de Moura
d455bb4c5b
feat(library/data/fintype): add decidable_exists_finite
2015-04-25 21:38:03 -07:00
Leonardo de Moura
6bb6644c25
feat(library/data/squash): define squash type using quotients
2015-04-24 18:11:25 -07:00
Floris van Doorn
9d805437f0
fix(reserved_notation): lower binding power of 'iff'
2015-04-22 13:06:11 -07:00
Leonardo de Moura
670eac9d50
refactor(library): avoid 'context' command in the standard library
2015-04-21 19:13:19 -07:00
Leonardo de Moura
bf8a7eb9b4
fix(library/scoped_ext): bug in local metadata in sections
...
The problem is described in issue #554
2015-04-21 18:56:28 -07:00
Leonardo de Moura
306087b5d3
refactor(library/data): rename 'countable' to 'encodable', define countable in the usual way, and prove all 'encodable' type is 'countable'
2015-04-19 14:20:47 -07:00
Jeremy Avigad
f4398115b4
feat(library/data/rat/basic.lean): begin theory of rationals, show rat is a field
2015-04-18 11:39:52 -07:00
Jeremy Avigad
5eb7fef564
feat(library/algebra/order.lean, data/int/{basic,order}.lean): add theorem, correct gt_trans
2015-04-18 11:39:52 -07:00
Leonardo de Moura
cc63a40a01
feat(library): enforce name conventions on old nat declarations
2015-04-18 10:50:30 -07:00
Leonardo de Moura
3b84a63874
fix(library/algebra/function): terminology
2015-04-16 20:52:18 -07:00
Leonardo de Moura
2e675c1bdd
feat(library/data/examples/notcountable): add example showing that nat -> nat is not countable
2015-04-16 14:54:34 -07:00
Leonardo de Moura
7529ee0a5c
feat(library/data/countable): prove axiom of choice and skolem theorem for countable types and decidable relations
2015-04-16 12:36:27 -07:00
Leonardo de Moura
0dd7667836
feat(library/data/countable): choice function for countable types
2015-04-16 12:29:06 -07:00
Leonardo de Moura
7a4f43d6ab
feat(library/data/nat/choose): choice function for natural numbers
2015-04-16 11:33:26 -07:00
Leonardo de Moura
b14d3dbeba
chore(library/data/countable): add copyright notice
2015-04-16 09:24:53 -07:00
Leonardo de Moura
036900280d
feat(library/data/countable): show that a type is countable by providing an injection to a type already known to be countable
2015-04-15 10:30:24 -07:00
Leonardo de Moura
039f1de524
fix(library/data/countable): typos
2015-04-14 21:26:56 -07:00
Leonardo de Moura
9534cfe92f
feat(library/data/countable): prove that (list A) is countable if A is countable
2015-04-14 21:17:18 -07:00
Leonardo de Moura
a7db8a2bac
theorem(library/data/countable): prove that the product of two countable types is countable
2015-04-14 20:39:58 -07:00
Leonardo de Moura
38b880b939
feat(library/data/nat/pairing): add unpair_mkpair theorem
2015-04-14 20:28:20 -07:00
Leonardo de Moura
f7a43c7997
feat(library/data/nat/sqrt): generalize sqrt_eq theorem
2015-04-14 20:10:18 -07:00
Leonardo de Moura
faca0acd26
feat(library/data/nat/sqrt): add sqrt_eq theorem
2015-04-14 15:38:54 -07:00
