{G : Type u_1} →
  [inst : AddGroup G] →
    {motive : IsAddKleinFour G → Sort u} →
      ((card_four : Nat.card G = 4) → (exponent_two : AddMonoid.exponent G = 2) → motive ⋯) →
        (t : IsAddKleinFour G) → motive t