∀ {R : Type u_3} {M : Type u_4} [inst : CommRing R] [inst_1 : AddCommGroup M] [Algebra ℚ R] [Module ℚ M]
  [inst_4 : Module R M] [inst_5 : Module Rᵐᵒᵖ M] [inst_6 : IsCentralScalar R M] [inst_7 : TopologicalSpace R]
  [inst_8 : TopologicalSpace M] [inst_9 : IsTopologicalRing R] [inst_10 : IsTopologicalAddGroup M]
  [inst_11 : ContinuousSMul R M] [inst_12 : ContinuousSMul Rᵐᵒᵖ M] [T2Space R] [T2Space M] (x : TrivSqZeroExt R M),
  (NormedSpace.exp x).snd = NormedSpace.exp x.fst • x.snd