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def definition def or abbrev

hypothesis6

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 114noncomputable def hypothesis6 : ℝ := (phi^3 - 1) / (phi^3 + 1)

proof body

Definition body.

 115
 116/-- **BEST FIT**: cos(θ_W) ≈ √(1 - 1/(2φ + 1))
 117
 118    Predicted: 0.874
 119    Observed: 0.881
 120    Error: ~0.8%
 121
 122    This is a promising φ-connection! -/

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