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Theorems · Theorem · functional analysis

CStarAlgebra.norm_sub_mul_self_le

∀ {A : Type u_2} [inst : CStarAlgebra A] [inst_1 : PartialOrder A] [StarOrderedRing A] {x y : A} (z : A),
  0 ≤ x → y ∈ Set.Icc x 1 → ∀ {c : ℝ}, 0 ≤ c → ‖star z * (1 - x) * z‖ ≤ c ^ 2 → ‖z - y * z‖ ≤ c

A variant of nnnorm_sub_mul_self_le which uses ‖·‖ instead of ‖·‖₊.

Defined in
Mathlib.Analysis.CStarAlgebra.ApproximateUnit
Cited by
1 results in Mathlib
Foundations
Depth 323 from the axioms · uses propext, Classical.choice, Quot.sound
Assumes
CStarAlgebraPartialOrderStarOrderedRing

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