∀ {A : Type u_1} [inst : NormedRing A] [inst_1 : StarRing A] [inst_2 : NormedAlgebra ℝ A]
  [inst_3 : ContinuousFunctionalCalculus ℝ A IsSelfAdjoint] [inst_4 : PartialOrder A] [StarOrderedRing A]
  [NonnegSpectrumClass ℝ A] (a : A),
  autoParam (IsStrictlyPositive a) CFC.exp_log._auto_1 → NormedSpace.exp (CFC.log a) = a