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Theorems · Theorem · functional analysis

ContinuousLinearMap.opNorm_lsmul_le

∀ {𝕜 : Type u_1} {E : Type u_2} [inst : NontriviallyNormedField 𝕜] [inst_1 : SeminormedAddCommGroup E]
  [inst_2 : NormedSpace 𝕜 E] {R : Type u_3} [inst_3 : SeminormedRing R] [inst_4 : NormedAlgebra 𝕜 R]
  [inst_5 : Module R E] [inst_6 : IsBoundedSMul R E] [inst_7 : IsScalarTower 𝕜 R E], ‖ContinuousLinearMap.lsmul 𝕜 R‖ ≤ 1

The norm of lsmul is at most 1 in any semi-normed group.

Defined in
Mathlib.Analysis.Normed.Operator.Mul
Cited by
4 results in Mathlib
Foundations
Depth 178 from the axioms · uses propext, Classical.choice, Quot.sound
Assumes
NontriviallyNormedFieldSeminormedAddCommGroupNormedSpaceSeminormedRingNormedAlgebraModuleIsBoundedSMulIsScalarTower

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