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four_3
Specification
Is it true that if $p(x)$ and $q(x)$ are monic real-rooted polynomials of degree $3$, then $$\frac{1}{\Phi_3(p\boxplus_n q)} \ge \frac{1}{\Phi_3(p)}+\frac{1}{\Phi_3(q)}?$$
Lean 4 Statement
theorem four_3 : answer(sorry) ↔ ∀ (p q : ℝ[X]), FourProp p q 3
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