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real_inner_div_norm_mul_norm_eq_neg_one_of_ne_zero_of_neg_mul
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2023-05-25 17:58
Mathlib/Analysis/InnerProductSpace/Basic.lean
feat: port Analysis.InnerProductSpace.Basic (#4280) …
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real_inner_div_norm_mul_norm_eq_neg_one_of_ne_zero_of_neg_mul
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