474f1a4d39
The goal is to address the regression
```
example : (0 : Nat) + 0 = 0 :=
show 0 + 0 = 0 from rfl
```
introduced by fedf235cba
Note that we should only *try to* unify the types. Otherwise, we would
produce another regression.
```
example : Int :=
show Nat from 0
```
cc @kha
11 lines
229 B
Text
11 lines
229 B
Text
example : (0 : Nat) + 0 = 0 :=
|
|
show 0 + 0 = 0 from rfl
|
|
|
|
example : (0 : Int) + 0 = 0 :=
|
|
show 0 + 0 = 0 from rfl
|
|
|
|
example : Int :=
|
|
show Nat from 0
|
|
|
|
example (x : Nat) : (x + 0) + y = x + y := by
|
|
rw [show x + 0 = x from rfl]
|