∀ {α : Type u_1} [inst : EMetricSpace α] {K : NNReal} {f : α → α} [inst_1 : CompleteSpace α] (hf : ContractingWith K f)
  {x : α} (hx : edist x (f x) ≠ ⊤), edist x (ContractingWith.efixedPoint f hf x hx) < ⊤