Theorem mem_ball_iff_norm'''

Modification history

2026-02-24 15:42
Mathlib/Analysis/Normed/Group/Basic.lean
refactor: change definition of distance in normed group (#35037) …
Modified mem_ball_iff_norm'''View on Github →
2023-03-09 06:58
Mathlib/Analysis/Normed/Group/Basic.lean
feat: port Analysis.Normed.Group.Basic (#2736)
Added mem_ball_iff_norm'''View on Github →