Mario Carneiro
cc81118892
refactor(init/data): move out some nat lemmas
2017-07-26 11:52:10 +01:00
Leonardo de Moura
bb9e3ddae2
feat(library/init/meta/interactive): rw [-h] ==> rw [← h]
...
@Armael: this change may affect your project.
The file `doc/changes.md` explains the motivation for the change.
2017-07-05 11:42:55 -07:00
Leonardo de Moura
df091f5c34
feat(library/init/meta/interactive): simp and unfold can unfold projection applications
...
@Armael: we finally can write `simp [proj]` to unfold the `proj`
projection application.
Remark: we still need to add similar support for `dsimp`.
2017-07-02 16:28:04 -07:00
Leonardo de Moura
70b27fb2d3
feat(library/init/meta/interactive): unfold is now based on the simp framework
...
See issue #1694 .
There is an orthogonal issue. `simp` (and consequently `unfold`) cannot be used to
reduce projections (e.g., `has_add.add`). This issue has been
previously raised by @Armael, but it was not addressed yet.
2017-07-02 11:30:48 -07:00
Leonardo de Moura
01003b79cc
fix(library/init/meta/interactive): simp [...] at *
...
closes #1675
After this commit, the following example works as expected.
```
example (p : nat → Prop) (a b : nat) : a = 0 ∧ b = 0 → p (a + b) → p 0 :=
begin
intros h₁ h₂,
simp [h₁] at *,
/- produces the state
(p : nat → Prop) (a b : nat)
h₁ : true
h₂ : p 0
|- p 0
-/
assumption
end
```
as expected.
Remark: the original issue raised by issue #1675 is actually solved by the
`simp_all` tactic.
2017-07-01 20:50:46 -07:00
Leonardo de Moura
b1bdc4690f
feat(library/init/meta/simp_tactic): cleanup dunfold
...
Here are modifications:
- It fails if no definition is unfolded.
See comment https://github.com/leanprover/lean/issues/1694#issuecomment-310956315
at issue #1694
- Users can provide configuration parameters.
- `dunfold_occs` was deleted.
2017-06-30 20:49:20 -07:00
Leonardo de Moura
52d4189805
feat(library/tactic): add dsimp_config configuration object for the dsimp tactic family
...
Now, `dsimp` fails if the goal did not change.
We can use the config object to obtain the previous behavior:
```
dsimp {fail_if_unchaged := ff}
```
See comment https://github.com/leanprover/lean/issues/1694#issuecomment-310956315
at issue #1694
2017-06-30 17:15:10 -07:00
Mario Carneiro
9f2980a524
feat(init/data/int): int lemmas, more bitwise theorems
2017-06-27 18:55:52 -07:00
Mario Carneiro
9f4f93e931
feat(init/data/int): prove int bitwise ops
2017-06-27 18:55:52 -07:00
Mario Carneiro
e705d89490
feat(init/data/int): bitwise ops for integers
2017-06-27 18:55:52 -07:00
