Lemma 26.9 (contraction, Kakade–Tewari): for coordinatewise ρ-Lipschitz φ, R(φ ∘ A) ≤ ρ R(A)

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Lemma 26.9 (contraction, Kakade–Tewari): for coordinatewise ρ-Lipschitz φ, R(φ ∘ A) ≤ ρ R(A) · Prove2Me