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Theorem ext_chart_at_coe_symm

Modification history

2021-02-28 22:54
src/geometry/manifold/smooth_manifold_with_corners.lean
feat(geometry/manifold): `ext_chart_at` is smooth on its source (#6473)
Modified ext_chart_at_coe_symmView on Github →
2020-05-06 19:39
src/geometry/manifold/smooth_manifold_with_corners.lean
refactor(data/equiv/local_equiv, topology/local_homeomorph): use coercions (#2603) …
Added ext_chart_at_coe_symmView on Github →