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v3
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Mathlib v3 is deprecated.
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Theorem
ext_chart_at_target_mem_nhds_within'
Modification history
2021-03-07 10:18
src/geometry/manifold/smooth_manifold_with_corners.lean
refactor(geometry/manifold): drop some unused arguments (#6545) …
Added
ext_chart_at_target_mem_nhds_within'
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