Mathlib v3 is deprecated. Go to Mathlib v4

Theorem open_embedding.singleton_has_groupoid

Modification history

2021-04-14 18:40

src/geometry/manifold/charted_space.lean

feat(geometry/manifold/instances/units_of_normed_algebra): the units of a normed algebra are a topological group and a smooth manifold (#6981) …

Added open_embedding.singleton_has_groupoid View on Github →