Leonardo de Moura
06e35b4863
fix(library/algebra/numeral): remove redundant definitions
2015-11-08 14:04:54 -08:00
Leonardo de Moura
e4f0f6a9b4
feat(library): numeral normalization skeleton
2015-10-08 12:49:12 -07:00
Leonardo de Moura
5f967f40b2
fix(library/data/nat/basic): simplify two lemmas
2015-10-07 10:32:20 -07:00
Floris van Doorn
115dedbd1c
fix(hott): notation spacing and markdown files
2015-10-02 16:26:10 -07:00
Leonardo de Moura
ede23a3267
feat(hott,library): add additional spacing hints
2015-09-30 17:41:44 -07:00
Sebastian Ullrich
d1b5031dbd
feat(library): add some spacing hints
2015-09-30 17:36:32 -07:00
Floris van Doorn
3c4c722afd
feat(hott): port more from chapters 4 and 6 of the book
2015-09-28 09:09:21 -07:00
Leonardo de Moura
33f46fd137
feat(library/blast): parse blast tactic and invoke stub
2015-09-25 12:45:16 -07:00
Jeremy Avigad
719e9043cd
feat(library/data/set/equinumerosity): add Cantor's theorem, Schroeder-Bernstein theorem
2015-09-25 09:32:28 -07:00
Jeremy Avigad
2c7526e1fc
feat(library/*): add various theorems
2015-09-25 09:32:28 -07:00
Jeremy Avigad
135f5ff96b
feat(library/init/quot.lean): declare calc subst rule for iff
2015-09-25 09:32:28 -07:00
Leonardo de Moura
3d4475b7d9
refactor(library/logic/cast): simplify proofs
2015-09-21 12:34:24 -07:00
Jeremy Avigad
42c9bdc463
feat(library/theories/analysis/{metric_space,real_limit}: add convergence theorems
2015-09-20 20:51:28 -04:00
Jeremy Avigad
aa8dfba5a5
feat/fix(library/algebra/*): add some useful theorems, fix implicit arguments
2015-09-20 20:47:30 -04:00
Jeremy Avigad
9561e379c7
fix(library/data/set/basic): make set_of reducible
2015-09-20 19:54:46 -04:00
Rob Lewis
8fef4a95d4
chore(library/algebra/ordered_field): generalize theorem from reals
2015-09-17 16:23:22 -04:00
Rob Lewis
d6be32e4ef
feat(library/theories/analysis): refactor IVT proof, add more general version of IVT
2015-09-17 16:22:46 -04:00
Rob Lewis
856a09d70e
chore(library/theories/analysis): make proof of IVT compile faster
2015-09-16 16:44:28 -04:00
Rob Lewis
631b9b3312
feat(library/theories/analysis): clean and simplify proof of IVT
2015-09-16 08:28:11 -07:00
Rob Lewis
ee257a7c6c
chore(library/data/{nat,real}): rename and move iterate function
2015-09-16 08:28:11 -07:00
Rob Lewis
ea3915f279
feat(library/theories/analysis): prove intermediate value theorem
2015-09-16 08:28:11 -07:00
Rob Lewis
f5dcb1e0a9
feat(library/algebra): add missing theorems to algebra library
2015-09-16 08:28:11 -07:00
Rob Lewis
4312f1e54b
chore(library/data/real): clean and rename theorems in completeness proofs
2015-09-16 08:28:11 -07:00
Rob Lewis
f4fa38e365
chore(library/data/{rat, pnat}): move theorems from reals to more appropriate places
2015-09-16 08:28:11 -07:00
Jeremy Avigad
352a906ba2
feat(library/theories/{metric_space,real_limit}): define metric spaces, limits, instantiate reals
2015-09-12 21:46:09 -04:00
Jeremy Avigad
948cdee366
feat(library/algebra/ordered_group): add variant of triangle inequality
2015-09-12 21:46:09 -04:00
Jeremy Avigad
b48b33c412
feat(library/data/real/division): add useful rules for proving equalities
2015-09-12 21:46:09 -04:00
Jeremy Avigad
780c950414
refactor(library/data/int/order): use 'exists' instead of 'ex', 'least' instead of 'smallest', etc.
2015-09-12 21:46:09 -04:00
Jeremy Avigad
1affeec3c6
fix(library/algebra/ordered_filed): rename theorems
2015-09-12 21:46:09 -04:00
Jeremy Avigad
8db9afbf1c
feat/refactor(data/real/complete): add another archimedean property, rename theorems
2015-09-12 21:46:09 -04:00
Jeremy Avigad
d9e166f77f
feat/refactor(library/data/real/*): add / improve casts to real from nat, int, rat
2015-09-12 21:46:09 -04:00
Jeremy Avigad
de83a68667
refactor(library/data/{int,rat}/*): clean up casts between nat, int, and rat
2015-09-12 21:46:09 -04:00
Jeremy Avigad
20f6b4c6bd
feat(library/logic/quantifiers): add 'the'
2015-09-12 21:46:09 -04:00
Leonardo de Moura
3035dd7e66
refactor(library/data/finset/equiv): remove workarounds added by commit e9809a453d
...
The workarounds were needed due to a bug at local_context class.
The problem has been fixed at df3100d2cd
2015-09-12 17:19:49 -07:00
Leonardo de Moura
e9809a453d
fix(library/data/finset/equiv): broken proof
...
TODO: investigate why the proof has to be fixed
2015-09-11 23:24:29 -07:00
Rob Lewis
8d1f449491
refactor(library/data/real): move and rename theorems
2015-09-11 08:52:53 -07:00
Leonardo de Moura
3c1d6ec67a
feat(library/algebra/algebra): add link to complete lattices module
2015-09-04 13:04:36 -07:00
Sebastian Reuße
f8a773be11
chore(library/algebra): remove obsolete link.
2015-09-04 09:41:34 +02:00
Rob Lewis
e722120e34
fix(library/data/rat/order): declare decidable_le an instance
2015-09-03 15:43:07 -07:00
Jeremy Avigad
2ab7928257
refactor(library/data/set/basic): standardize intro and elim theorem names
2015-09-03 15:38:27 -07:00
Floris van Doorn
9a439d4a4e
feat(library.md): update reference to classical axiom
2015-09-01 15:17:46 -07:00
Jeremy Avigad
072971f3bb
feat(library/data/finset/comb,library/data/set/basic): define set complement
2015-09-01 14:47:19 -07:00
Jeremy Avigad
840ef98829
refactor(library/init/nat): make \nat notation available at top level
2015-09-01 14:47:19 -07:00
Jeremy Avigad
51e0d31304
refactor(library/algebra/ordered_ring,ordered_field): move theorems from ordered_field to ordered_ring
2015-09-01 14:47:19 -07:00
Jeremy Avigad
7d72c9b6b5
refactor(library/algebra/{field,ordered_field}, library/*): more renaming, setting implicit arguments
...
Many theorems for division rings and fields have stronger versions for discrete fields, where we
assume x / 0 = 0. Before, we used primes to distinguish the versions, but that has the downside
that e.g. for rat and real, all the theorems are equally present. Now, I qualified the weaker ones
with division_ring.foo or field.foo. Maybe that is not ideal, but let's try it.
I also set implicit arguments with the following convention: an argument to a theorem should be
explicit unless it can be inferred from the other arguments and hypotheses.
2015-09-01 14:47:19 -07:00
Jeremy Avigad
93c2d1e9d0
refactor(library/algebra/ordered_field): rename theorems to maintain consistency with other parts of the library
2015-09-01 14:47:19 -07:00
Jeremy Avigad
92af727daf
fix(library/data/real/{basic,division,order}: use notation for 0 and 1
...
These changes were needed because e.g. real.add_zero was "x + zero = x", and rewrite
would not match it to a goal "t + 0".
The fix was a lot harder than I expected. At first, migrate failed with resource
errors. In the end, what worked was this: I defined the coercion from num to real
directly (rather than infer num -> nat -> int -> rat -> real).
I still don't understand what the issues are, though. There are subtle issues with
numerals and coercions and migrate.
(We are not alone. Isabelle also suffers from the fact that there are too many
"zero"s and "one"s.)
2015-09-01 14:47:19 -07:00
Leonardo de Moura
3b19de1974
feat(library/data/num): show that num has decidable equality
2015-08-31 17:47:07 -10:00
Leonardo de Moura
63b93cf762
refactor(library/data/set/finite): make proof more robust
2015-08-31 17:26:24 -10:00
Leonardo de Moura
92716972c0
refactor(library/data/hf): add local attribute to make proofs more robust
2015-08-31 17:06:54 -10:00
