eccc472e8d
This PR removes the now unnecessary `set_option grind.warning false` statements, now that the warning is disabled by default.
19 lines
463 B
Text
19 lines
463 B
Text
example : (if (!false) = true then id else id) false = false := by
|
|
grind
|
|
|
|
opaque q (h : ¬ (!false) = true) : Bool → Bool
|
|
|
|
example : (if h : (!false) = true then id else q h) false = false := by
|
|
grind
|
|
|
|
example [Decidable c] : (if c then id else id) false = false := by
|
|
grind
|
|
|
|
opaque c : Prop
|
|
opaque r (h : ¬ c) : Bool → Bool
|
|
open Classical
|
|
|
|
@[grind =] theorem rax : r h x = x := sorry
|
|
|
|
example : (if h : c then id else r h) false = false := by
|
|
grind
|