Goal:
    A : Type  d : A  v : A  H : d = v
  ============================
   (None = None ∧ v = d)


DEBUG:Going to execute:
lazymatch Zify.zify_convert_to_euclidean_division_equations_flag
           with
           | true =>
               Zify.zify_internal_to_euclidean_division_equations
           | false => idtac
           end