Jeremy Avigad
e416291135
feat(library/algebra/*,library/data/*): small additions and changes
2015-08-14 18:49:57 -07:00
Jeremy Avigad
4a36f843f7
refactor(library/algebra/group_power,library/*): change definition of pow
...
I changed the definition of pow so that a^(succ n) reduces to a * a^n rather than a^n * a.
This has the nice effect that on nat and int, where multiplication is defined by recursion on the right,
a^1 reduces to a, and a^2 reduces to a * a.
The change was a pain in the neck, and in retrospect maybe not worth it, but oh, well.
2015-08-14 18:49:57 -07:00
Leonardo de Moura
d2eb99bf11
refactor(library/logic): move logic/choice.lean to init/classical.lean
...
choice axiom is now in the classical namespace.
2015-08-12 18:37:33 -07:00
Leonardo de Moura
6fd3affeb1
feat(library/data/finset/equiv): show that (finset nat) is isomorphic to nat
2015-08-11 15:54:14 -07:00
Leonardo de Moura
1cacac2789
feat(library/data/nat/parity): add auxiliary lemma
2015-08-11 14:20:58 -07:00
Leonardo de Moura
0e98f10c96
feat(library/data/nat/div): add div_div_eq_div_mul theorem for nat
2015-08-10 19:30:00 -07:00
Leonardo de Moura
de3d0e4162
feat(library/data/list/comb): show that (list A) is isomorphic to A if A is isomorphic to nat
2015-08-10 16:04:02 -07:00
Leonardo de Moura
5ca37dace0
fix(library/data/nat/order): fixes #786
2015-08-09 23:36:07 -07:00
Jeremy Avigad
f97298394b
feat(library/data/nat/bigops,library/data/set/card,library/*): add set versions of bigops for nat
...
This required splitting data/set/card.lean from data/set/finite.lean, to avoid dependencies
2015-08-08 17:20:23 -04:00
Jeremy Avigad
eaf886cb5a
refactor(library/algebra/group_bigops,library/*): put group_bigops in 'finset' namespace, in preparation for set versions
2015-08-08 04:23:52 -07:00
Jeremy Avigad
9ff0097223
refactor(library/algebra/{lattice,order},library/data/nat): split lattice from order, make nat an instance of discrete linear order
2015-08-03 22:41:56 -04:00
Jeremy Avigad
0def951efa
refactor(library/data/nat/sub,*): get rid of diff, tidy some max and min theorems
2015-08-03 22:41:56 -04:00
Rob Lewis
25aa5b3939
feat(library/data/nat): define least function for nat
2015-07-31 08:28:36 -07:00
Leonardo de Moura
44518fcab1
refactor(library/theories/group_theory): move diff to nat
2015-07-30 20:14:48 -07:00
Leonardo de Moura
88c659c54e
feaf(library): make sure basic standard library can be compiled with option "--to_axiom"
...
We use this option to erase proofs when generating the javascript
version. The proofs are erased to minimize the size of the file that
must be downloaded by users
2015-07-29 16:11:23 -07:00
Jeremy Avigad
6355670ac4
fix(library/data/nat/nat.md): add 'find' to markdown file
2015-07-27 07:46:59 -07:00
Leonardo de Moura
a124bc246a
feat(library/data/fin): add equivalences between fin types
2015-07-26 15:42:39 -07:00
Leonardo de Moura
a883b72a25
fix(library/data): 'choose' -> 'find' renaming problems
2015-07-25 11:25:04 -07:00
Jeremy Avigad
d3cd0bb8ff
refactor(library/data/nat/find): rename 'choose' to 'find' to avoid conflict with combinatorics 'choose'
2015-07-25 14:02:44 -04:00
Leonardo de Moura
43f5f70414
feat(library/data/bag): add basic properties for bag intersection and union
2015-07-25 08:37:30 -07:00
Mario Carneiro
066b0fcdf9
feat(library): clean up "sorry"s in library
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Breaking changes: pnat was redefined to use subtype instead of a custom inductive type, which affects the notation for pnat 2 and 3
2015-07-24 12:21:33 -04:00
Leonardo de Moura
fbaa8b21f6
refactor(library/data/nat): cleanup for the tutorial
2015-07-22 13:41:50 -07:00
Leonardo de Moura
e969c7a8d6
refactor(library): remove 'simp' hack
2015-07-22 10:13:19 -07:00
Leonardo de Moura
092c8d05b9
feat(frontends/lean,library): rename '[rewrite]' to '[simp]'
2015-07-22 09:01:42 -07:00
Leonardo de Moura
0de715ae54
refactor(library/data): cleanup proofs using new features
2015-07-21 09:57:10 -07:00
Leonardo de Moura
48f8b8f18d
refactor(library): use new 'suppose'-expression
2015-07-19 21:15:20 -07:00
Leonardo de Moura
c2fc612ec1
fix(library/data/nat/order): add missing theorems back
2015-07-19 20:21:25 -07:00
Leonardo de Moura
d2f64d7744
feat(library/data/nat/order): add 'max/min' auxiliary theorems
2015-07-19 20:15:11 -07:00
Leonardo de Moura
d91627ebec
refactor(library): move 'max/min' to 'data/nat'
2015-07-19 19:47:14 -07:00
Leonardo de Moura
92f8eb173b
feat(frontends/lean): use 'this' as the name for anonymous 'have'-expression
2015-07-18 13:36:05 -05:00
Leonardo de Moura
ade60278d0
refactor(library): rename iff.mp' to iff.mpr
2015-07-18 08:52:58 -05:00
Leonardo de Moura
9d83361fdc
refactor(library): use subtype instead of sigma
2015-07-16 22:48:33 -04:00
Leonardo de Moura
89f69630b6
feat(library): use sigma instead of exists (experimental)
2015-07-15 15:49:47 -04:00
Leonardo de Moura
3ab0e07ba9
feat(frontends/lean): add simp tactic frontend stub
...
This commit also removes the fake_simplifier. It doesn't work anymore
because simp is now a reserved word.
2015-07-14 09:54:53 -04:00
Haitao Zhang
5034de9c4e
feat(library/data/nat/power): add nat power divide theorems
2015-07-13 22:02:17 -04:00
Leonardo de Moura
ebe6ec0017
feat(library): add '[rewrite]' annotation some some theorems
2015-07-13 16:39:53 -04:00
Jeremy Avigad
70407473c2
feat(library/theories/combinatorics/choose): begin theory of binomial coefficients
2015-07-11 19:01:43 -04:00
Leonardo de Moura
8e8e08cfe7
feat(library/tactic): use occurrence object in unfold tactic family
2015-07-11 18:53:45 -04:00
Leonardo de Moura
d939509135
doc(library/data/nat/examples): add tail recursive fib example
2015-07-10 20:38:07 -04:00
Leonardo de Moura
fc82b46171
chore(library/data/nat/examples/fib): cleanup example
2015-07-10 08:18:30 -04:00
Leonardo de Moura
32cc2e917b
doc(library/data/nat/examples): add examples
2015-07-09 21:56:48 -04:00
Jeremy Avigad
2e3b1b04cd
feat(library/algebra/ring_power): add properties of power in ring structures
2015-07-07 21:05:48 -07:00
Jeremy Avigad
31aeff95d5
refactor(library/algebra/ordered_ring): remove 0 ~= 1 from ordered_semiring, add 0 < 1 to linear_ordered_semiring
2015-07-07 21:05:48 -07:00
Jeremy Avigad
e35f05ad47
feat(library/data/nat/order): add greatest i < n st P i
2015-07-07 21:05:48 -07:00
Leonardo de Moura
01ba0b4747
feat(library/logic/equiv): add equivalence between types
...
This is a good test for the simplifier
2015-07-06 11:17:03 -07:00
Leonardo de Moura
9ccd8ff700
feat(library/data/nat/parity): cleanup proofs
2015-07-05 09:35:15 -07:00
Leonardo de Moura
f4f77e7f0b
feat(library): move data/nat/primes to theories/number_theory
2015-07-04 09:49:14 -07:00
Leonardo de Moura
aee8bd8b0c
feat(library/data/nat): add coprime_primes theorem
2015-07-04 00:37:09 -07:00
Leonardo de Moura
e630511184
feat(library/data/nat/primes): add more simple theorems for primes
2015-07-03 23:31:04 -07:00
Leonardo de Moura
30ef971bc0
feat(library/data/nat): add basic facts about parity
2015-07-03 17:38:23 -07:00
