For u ∉ Q̄ with uū algebraic and G a real polynomial with algebraic coefficients, z = G(Re u, Im u) has no 2×3 configuration in its hull

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For u ∉ Q̄ with uū algebraic and G a real polynomial with algebraic coefficients, z = G(Re u, Im u) has no 2×3 configuration in its hull · Prove2Me