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Theorem mem_closed_ball_zero_iff

Modification history

2022-10-06 17:50
src/analysis/normed/group/basic.lean
feat(analysis/normed/group/basic): Multiplicative, noncommutative normed groups (#15705) …
Deleted mem_closed_ball_zero_iffView on Github →
2021-12-23 02:02
src/analysis/normed/group/basic.lean
feat(analysis/normed_space/pointwise): more on pointwise operations on sets in normed spaces (#10820) …
Added mem_closed_ball_zero_iffView on Github →