Every five-dimensional span(1, u, u⁻¹, QR₁/(uP), Q(QR₁ + PR₂)/(uP²)) with P/Q of degree 2 carries a 2×3 configuration with ratio P/Q

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Every five-dimensional span(1, u, u⁻¹, QR₁/(uP), Q(QR₁ + PR₂)/(uP²)) with P/Q of degree 2 carries a 2×3 configuration with ratio P/Q · Prove2Me