Theorem norm_commutator_sub_one_le

Modification history

2024-10-21 21:50
Mathlib/Analysis/Normed/Field/Basic.lean
feat: `‖aba⁻¹b⁻¹ - 1‖ ≤ C ‖a - 1‖ ‖b - 1‖` (#18027) …
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