def definition def or abbrev

`hypothesis2`

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formal statement (Lean)

  85noncomputable def hypothesis2 : ℝ := (phi + 1) / (phi + 2)

Definition body.

  86
  87/-- Hypothesis 3: cos(θ_W) = φ / √(φ² + 1)
  88
  89    1.618 / √(2.618 + 1) = 1.618 / 1.902 ≈ 0.851
  90
  91    Getting closer! -/

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Lean names referenced from this declaration's body.