Mario Carneiro
316d67c3be
fix(library/init/data/setoid): fix redundant parameter
...
`setoid.refl` has two instances of `setoid A` in it
2018-01-28 15:49:35 -08:00
Leonardo de Moura
9331945e8b
fix(library/init/meta/interactive): alternative fix for issue at #1913
...
We also document the problem to make sure we don't spend time again
trying to understand the workaround. This is an instance of a bigger
problem that should be addressed later.
2018-01-28 09:07:11 -08:00
Leonardo de Moura
1c61129d40
feat(library/init/meta/tactic): expose approx at unify and is_def_eq tactics
2018-01-25 22:27:18 -08:00
Leonardo de Moura
d4e1a4a50a
chore(library/system/io): tactic.run_io ==> tactic.unsafe_run_io
2018-01-24 10:32:32 -08:00
Leonardo de Moura
0ad5497462
refactor(library/io): make io easier to extend and use
2018-01-23 15:03:31 -08:00
Sebastian Ullrich
3a1ede2d73
refactor(leanpkg/config_vars): replace with core lib
2018-01-23 11:14:18 -08:00
Leonardo de Moura
ba5bdf639b
feat(library/init/algebra/classes) add is_symm_op type class
2018-01-22 15:43:30 -08:00
Leonardo de Moura
368f17d0b1
feat(library/tactic/simplify): add simp!
2018-01-16 17:29:24 -08:00
Leonardo de Moura
c195d7c2a1
feat(library/tactic/simp_tactic): improve mk_simp_attr
...
- An new simp attribute may depend on other existing attributes
- Add `[norm]` simp attribute. It is an extension of the default `[simp]` attribute.
It should be used to add extra rules for normalizing goals.
These extra rules are used to produce normal forms and/or reduce the
number of constants used in a goal. Here is an example coming from a
discussion with @kha. When working with monads, we may want to
eliminate `<$>` by using the lemma `f <$> x = x >>= pure ∘ f`.
This lemma is in the `[norm]` simp set, but it is not in `[simp]`
2018-01-16 16:47:30 -08:00
Mario Carneiro
147436bfb8
fix(init/data/nat/lemmas): generalize nat.iterate to (Sort u)
2018-01-16 11:37:33 -08:00
Leonardo de Moura
6635f6c8c1
chore(library/init/coe): document why @[reducible] annotation is needed
2018-01-16 11:31:43 -08:00
Sebastian Ullrich
c64284a377
perf(init/data/string/ops): make string.split linear
2018-01-15 10:51:27 +01:00
Sebastian Ullrich
ff346f875b
feat(init/data/string/ops): add string.split
2018-01-15 09:58:19 +01:00
Leonardo de Moura
cebde17bec
feat(library/tactic/simplify): simp reduces c a_1 ... a_n = c b_1 ... b_n into a_1 = b_1 /\ ... /\ a_n = b_n
2018-01-12 18:18:56 -08:00
Leonardo de Moura
9eb22cd548
feat(library/constructions/injective): automatically generate auxiliary lemma *.inj_eq for constructors
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We are going to use these lemmas in the simplifier.
2018-01-12 16:41:12 -08:00
Leonardo de Moura
58fce78282
feat(library/init/meta/interactive): add interactive tactic subst_vars
2018-01-12 14:37:11 -08:00
Leonardo de Moura
5bad6d5372
feat(library/init/meta/tactic): subst supports heterogeneous equalities that are actually homogeneous
2018-01-12 14:32:49 -08:00
Leonardo de Moura
4bd314f7bd
feat(library/tactic/simplify): simp reduces c_1 ... = c_2 ... to false
2018-01-12 11:30:45 -08:00
Leonardo de Moura
56920639fa
chore(library/init/meta/coinductive_predicates): remove old comment
2018-01-12 10:56:39 -08:00
Leonardo de Moura
c3d4a9456e
feat(library/init/meta/interactive): add sorry interactive tactic (alias for admit).
2018-01-11 16:58:46 -08:00
Leonardo de Moura
fc760f57d2
chore(library/init/algebra/classes): typos
2018-01-10 15:17:02 -08:00
Leonardo de Moura
26da50ab0e
feat(library/vm/vm_string): efficient iterator.extract
...
@kha I've added
iterator.extract : iterator -> iterator -> option string
It returns `none` if the iterators are "incompatible".
If this function is inconvenient to use, we can change it and return the
empty string in these cases.
Given iterators `it1` and `it2`, if they are sharing the same string
object in memory, then the cost is O(pos(it2) - pos(it1)).
If not, we have an extra O(N) step where we check whether the strings
being iterated by it1 and it2 are equal (`N` is the size of the strings).
In most applications, I believe the iterators will share the string
object.
I didn't test the code much. BTW, I found an unrelated bug at
vm_string.cpp. So, I'm not very confident this code is rock solid.
2018-01-10 13:27:28 -08:00
Leonardo de Moura
6ab792733d
feat(library/type_context): smart unfolding
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closes #1794
2018-01-09 15:09:08 -08:00
Leonardo de Moura
587540f11b
feat(frontends/lean): add abbreviation command
...
This command is not just a cosmetic feature.
We need it to defined `id_rhs` before the tactic framework is defined.
We want `id_rhs` to be used in all definitions generated by the equation
compiler. Right now, it is only used in definitions defined after the
tactic framework.
2018-01-05 15:40:59 -08:00
Leonardo de Moura
43d7bac49b
feat(library/init/meta): add support for new unify at rw tactic
2018-01-04 13:05:55 -08:00
Leonardo de Moura
040722c7e7
feat(library/init/meta): add unify config option to apply_cfg
...
This commit also fixes a problem in the `apply` tactic error messages.
2018-01-04 12:51:59 -08:00
Sebastian Ullrich
2586f5b6f2
feat(system/io): get_cwd/set_cwd
2017-12-30 19:31:55 +01:00
Mario Carneiro
56c54a478f
fix(init/coe): use Sort instead of Type in subtype coe
2017-12-20 14:02:03 -08:00
Leonardo de Moura
ddf014cc7f
feat(library/init/version): add lean.githash : string
2017-12-20 14:00:41 -08:00
Leonardo de Moura
e89eece98c
feat(library/init): add lean.version : nat × nat × nat
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closes #1873
2017-12-15 17:48:26 -08:00
Leonardo de Moura
91ff183b3e
chore(library): remove out notation for out_param
2017-12-15 15:47:58 -08:00
Leonardo de Moura
f0352d31a1
feat(library/type_context, library): inout ==> out modifier in type class declarations
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@kha: I decided to implement this change before I start the
type_context modifications. The change did not affect the corelib and
test suite much. The only annoying problem is that `out` cannot be
used to name locals anymore.
2017-12-15 14:46:47 -08:00
Leonardo de Moura
746134d11c
feat(library/init/meta/interactive): add goal tagging support for by_cases
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This commit also incorporates changes suggested at commit 84a1911949dec94.
2017-12-13 15:17:13 -08:00
Leonardo de Moura
6eae78da01
chore(library/data/rbtree/insert): provide meaningful names to ins.induction minor premises
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We use them with `case` tactic.
2017-12-13 14:44:48 -08:00
Mario Carneiro
17f77367cd
chore(library/init/data/fin/ops): revert 107ad36259.
2017-12-12 10:53:12 -08:00
Sean Leather
107ad36259
feat(library/init/data/fin/ops): fin.succ.inj
2017-12-12 04:23:01 -05:00
Leonardo de Moura
cb74ef1670
chore(library/init/meta/interactive): fix docstring
2017-12-11 16:27:04 -08:00
Leonardo de Moura
533ddc0279
fix(library/init/meta/interactive): remove buggy generalizing param from with_cases
2017-12-11 16:27:04 -08:00
Leonardo de Moura
5217ae735d
feat(library/init/meta/interactive): do not make tag longer when constructor/apply create a single subgoal
2017-12-11 16:27:03 -08:00
Leonardo de Moura
f0231f17bc
feat(library/init/meta): propagate tags in constructor-like tactics
2017-12-11 16:27:03 -08:00
Leonardo de Moura
ebeb5f713a
feat(library/init/meta/interactive): do not make tag longer when induction/cases create a single subgoal
2017-12-11 16:27:03 -08:00
Leonardo de Moura
53961b12cb
chore(library/data/rbtree/insert): use new case tactic to cleanup proofs
2017-12-11 16:27:03 -08:00
Leonardo de Moura
8bda71af6f
feat(library/init/meta/interactive): new case tactic with support for with_cases and tagging
2017-12-11 16:27:03 -08:00
Leonardo de Moura
bf8fa50481
feat(library/init/data/list/basic): add is_prefix_of and is_suffix_of
2017-12-11 16:27:03 -08:00
Leonardo de Moura
ddfcc2cb0b
feat(library/init/data/list/basic): define decidable_eq (list A) instance manually
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Motivation: make sure we can use it before we define the tactic `mk_dec_eq_instance`.
2017-12-11 16:27:03 -08:00
Leonardo de Moura
d44996e034
feat(library/init/meta): propagate tag information
2017-12-10 19:15:41 -08:00
Leonardo de Moura
e23db3970a
feat(library/init/meta/tactic): apply tactic return parameter name associated with new metavars
2017-12-10 12:11:58 -08:00
Leonardo de Moura
41cfa1bf63
feat(library/init/meta/tactic): induction tactic returns constructor/param names
2017-12-10 09:46:39 -08:00
Leonardo de Moura
8577fe6984
fix(library/init/meta/interactive): induction ... generalizing ... bug
2017-12-10 08:57:25 -08:00
Leonardo de Moura
f288205cce
feat(library/tactic): goal tagging
2017-12-09 16:29:03 -08:00
