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Verification.RealDensityMinors

← Mathematical handbook
theorem Verification.real_continuous_density_minor_of_ae (f : ℝ × ℝ → ℝ) (hf : Measurable f) (ha : ∀ᵐ (a : ℝ) (b : ℝ) (c : ℝ) (d : ℝ), a ≤ b → c ≤ d → 0 ≤ f (a, c) * f (b, d) - f (a, d) * f (b, c)) (a b c d : ℝ) (hab : a < b) (hcd : c < d) (hac : ContinuousAt f (a, c)) (had : ContinuousAt f (a, d)) (hbc : ContinuousAt f (b, c)) (hbd : ContinuousAt f (b, d)) :
f (a, d) * f (b, c) ≤ f (a, c) * f (b, d)
theorem Verification.real_density_minor_of_tp2_ae (f g : ℝ × ℝ → ℝ) (hf : Measurable f) (hg : Measurable g) (he : f =ᵐ[MeasureTheory.volume] g) (htp : ∀ (a b c d : ℝ), a ≤ b → c ≤ d → g (a, d) * g (b, c) ≤ g (a, c) * g (b, d)) (a b c d : ℝ) (hab : a < b) (hcd : c < d) (hac : ContinuousAt f (a, c)) (had : ContinuousAt f (a, d)) (hbc : ContinuousAt f (b, c)) (hbd : ContinuousAt f (b, d)) :
f (a, d) * f (b, c) ≤ f (a, c) * f (b, d)