Theorems · Theorem · global analysis

OpenPartialHomeomorph.map_extend_symm_nhdsWithin_range

∀ {𝕜 : Type u_1} {E : Type u_2} {M : Type u_3} {H : Type u_4} [inst : NontriviallyNormedField 𝕜]
  [inst_1 : NormedAddCommGroup E] [inst_2 : NormedSpace 𝕜 E] [inst_3 : TopologicalSpace H] [inst_4 : TopologicalSpace M]
  (f : OpenPartialHomeomorph M H) {I : ModelWithCorners 𝕜 E H} {y : M},
  y ∈ f.source → Filter.map (↑(f.extend I).symm) (nhdsWithin (↑(f.extend I) y) (Set.range ↑I)) = nhds y

Defined in

Mathlib.Geometry.Manifold.IsManifold.ExtChartAt

Cited by

1 results in Mathlib

Foundations

Depth 159 from the axioms · uses propext, Classical.choice, Quot.sound

Assumes

NontriviallyNormedFieldNormedAddCommGroupNormedSpaceTopologicalSpaceTopologicalSpace