Set: pp::colors
  Set: pp::unicode
  Assumed: Natural
  Assumed: x
Variable x : ℕℕ
  Set: pp::unicode
Variable x : Natural
  Set: pp::unicode
Variable x : ℕℕ
Variable x : NN
Alias NN : Natural
Variable x : ℕℕℕ
Alias NN : Natural
Alias ℕℕℕ : Natural
  Set: pp::unicode
Variable x : NN
Alias NN : Natural
Alias ℕℕℕ : Natural