Mathlib Map

Theorems · Theorem · functional analysis

PositiveLinearMap.exists_norm_apply_le

∀ {A₁ : Type u_1} {A₂ : Type u_2} [inst : NonUnitalCStarAlgebra A₁] [inst_1 : NonUnitalCStarAlgebra A₂]
  [inst_2 : PartialOrder A₁] [StarOrderedRing A₁] [inst_4 : PartialOrder A₂] [StarOrderedRing A₂] (f : A₁ →ₚ[ℂ] A₂),
  ∃ C, ∀ (a : A₁), ‖f a‖ ≤ ↑C * ‖a‖

If f is a positive map, then it is bounded (and therefore continuous).

Defined in
Mathlib.Analysis.CStarAlgebra.PositiveLinearMap
Cited by
0 results in Mathlib
Foundations
Depth 322 from the axioms · uses propext, Classical.choice, Quot.sound
Assumes
NonUnitalCStarAlgebraNonUnitalCStarAlgebraPartialOrderStarOrderedRingPartialOrderStarOrderedRing

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