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Theorem parallelogram_law_with_norm_real

Modification history

2022-04-19 17:41
src/analysis/inner_product_space/basic.lean
feat(analysis): lemmas about nnnorm and nndist (#13498) …
Deleted parallelogram_law_with_norm_realView on Github →
2020-10-01 07:41
src/analysis/normed_space/inner_product.lean
feat(analysis/normed_space/inner_product): Define the inner product based on `is_R_or_C` (#4057)
Added parallelogram_law_with_norm_realView on Github →