Theorems · Theorem · functional analysis

ContinuousLinearMap.nnnorm_def

∀ {𝕜 : Type u_1} {𝕜₂ : Type u_2} {E : Type u_4} {F : Type u_5} [inst : NontriviallyNormedField 𝕜]
  [inst_1 : NontriviallyNormedField 𝕜₂] [inst_2 : SeminormedAddCommGroup E] [inst_3 : SeminormedAddCommGroup F]
  [inst_4 : NormedSpace 𝕜 E] [inst_5 : NormedSpace 𝕜₂ F] {σ₁₂ : 𝕜 →+* 𝕜₂} [inst_6 : RingHomIsometric σ₁₂]
  (f : E →SL[σ₁₂] F), ‖f‖₊ = sInf {c | ∀ (x : E), ‖f x‖₊ ≤ c * ‖x‖₊}

Defined in

Mathlib.Analysis.Normed.Operator.NNNorm

Cited by

1 results in Mathlib

Foundations

Depth 172 from the axioms · uses propext, Classical.choice, Quot.sound

Assumes

NontriviallyNormedFieldNontriviallyNormedFieldSeminormedAddCommGroupSeminormedAddCommGroupNormedSpaceNormedSpaceRingHomIsometric