lean2/examples/ex5.lean

9 lines
269 B
Text
Raw Normal View History

Show fun x : Bool, (fun x : Bool, x).
Show let x := true,
y := true
in (let z := x /\ y,
f := (fun x y : Bool, x /\ y <=>
y /\ x <=>
x \/ y \/ y)
in (f x y) \/ z)