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Theorem open_map_of_strict_fderiv

Modification history

2021-02-12 14:15
src/analysis/calculus/inverse.lean
feat(analysis/calculus): generalize `has_strict_fderiv_at.map_nhds_eq` (#6193) …
Deleted open_map_of_strict_fderivView on Github →
2021-01-15 10:58
src/analysis/calculus/inverse.lean
feat(analysis/calculus/inverse): a map that has an invertible strict derivative at every point is an open map (#5753) …
Added open_map_of_strict_fderivView on Github →