mathlib

27d28a84 - feat(linear_algebra/affine_space/independent): affine equivalences preserve affine independence of sets of points (#9776)

feat(linear_algebra/affine_space/independent): affine equivalences preserve affine independence of sets of points (#9776) The key addition is `affine_equiv.affine_independent_set_of_eq_iff`. Formalized as part of the Sphere Eversion project.