∀ {𝕜 : Type u_1} {V : Type u_2} {P : Type u_10} [inst : NormedField 𝕜] [inst_1 : SeminormedAddCommGroup V]
  [inst_2 : NormedSpace 𝕜 V] [inst_3 : PseudoMetricSpace P] [inst_4 : NormedAddTorsor V P] (p : P),
  (AffineIsometryEquiv.constVSub 𝕜 p).symm =
    (LinearIsometryEquiv.neg 𝕜).toAffineIsometryEquiv.trans (AffineIsometryEquiv.vaddConst 𝕜 p)