theorem PiBase.Homeomorph.cardEqContinuum {X : Type u} {Y : Type v} [TopologicalSpace X] [TopologicalSpace Y] [h : CardEqContinuum X] (f : X ≃ₜ Y) : CardEqContinuum Y

theorem PiBase.WellDefined.cardEqContinuum : WellDefined fun (X : Type u) [TopologicalSpace X] => CardEqContinuum X