[Merged by Bors] - feat(analysis/seminorm): Add construction of seminorm over normed fields #15893
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It looks good to me! |
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I've now inlined one more private lemma, which removes the naming question. Now all of the private lemmas are used at least twice. |
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Co-authored-by: sgouezel <sebastien.gouezel@univ-rennes1.fr>
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Co-authored-by: Eric Wieser <wieser.eric@gmail.com>
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…lds (#15893) As for normed spaces the properties of seminorms over fields are strong enough so that it sufficies to assume that `∀ (r : 𝕜) x, f (r • x) ≤ ∥r∥ * f x`. This PR adds this construction.
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As for normed spaces the properties of seminorms over fields are strong enough so that it sufficies to assume that
∀ (r : 𝕜) x, f (r • x) ≤ ∥r∥ * f x. This PR adds this construction.