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def definition def or abbrev

massRatio

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formal statement (Lean)

 111noncomputable def massRatio : ℝ := phi

proof body

Definition body.

 112
 113/-- Approximate mass ratios in the Standard Model:
 114    - top/charm ≈ 130 ≈ φ^10
 115    - charm/up ≈ 500 ≈ φ^13
 116    - tau/muon ≈ 17 ≈ φ^6
 117    - muon/electron ≈ 207 ≈ φ^11
 118
 119    The pattern is φ^n for various n. -/

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