Documentation

Mathlib.Topology.Covering.AddCircle

Covering maps involving AddCircle #

theorem AddCircle.isAddQuotientCoveringMap_zsmul {𝕜 : Type u_1} [TopologicalSpace 𝕜] [Ring 𝕜] [IsTopologicalRing 𝕜] (p : 𝕜) [T0Space (AddCircle p)] {n : } (hn : IsUnit n) :
IsAddQuotientCoveringMap (fun (x : AddCircle p) => n x) (zsmulAddGroupHom n).ker
theorem AddCircle.isAddQuotientCoveringMap_nsmul {𝕜 : Type u_1} [TopologicalSpace 𝕜] [Ring 𝕜] [IsTopologicalRing 𝕜] (p : 𝕜) [T0Space (AddCircle p)] {n : } (hn : IsUnit n) :
theorem AddCircle.isAddQuotientCoveringMap_zsmul_of_ne_zero {𝕜 : Type u_1} [TopologicalSpace 𝕜] [Ring 𝕜] [IsTopologicalRing 𝕜] (p : 𝕜) [T0Space (AddCircle p)] [Algebra 𝕜] (n : ) [NeZero n] :
IsAddQuotientCoveringMap (fun (x : AddCircle p) => n x) (zsmulAddGroupHom n).ker
theorem AddCircle.isAddQuotientCoveringMap_nsmul_of_ne_zero {𝕜 : Type u_1} [TopologicalSpace 𝕜] [Ring 𝕜] [IsTopologicalRing 𝕜] (p : 𝕜) [T0Space (AddCircle p)] [Algebra 𝕜] (n : ) [NeZero n] :