Set option: pp::colors
λ x y : Bool, x ∧ y
let x := ⊤,
y := ⊤,
z := x ∧ y,
f := λ arg1 arg2 : Bool, arg1 ∧ arg2 ⇔ arg2 ∧ arg1 ⇔ arg1 ∨ arg2 ∨ arg2
in (f x y) ∨ z
⊤