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theorem proved term proof

N_sec_eq

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formal statement (Lean)

  85theorem N_sec_eq : N_sec = 4 := by unfold N_sec D; norm_num

proof body

Term-mode proof.

  86
  87/-! ## Lepton Sector Geometry (DERIVED, not hardcoded) -/
  88
  89/-- Lepton sector binary gauge: B = -(bilateral × E_passive) = -22.
  90    The bilateral factor (= 2) comes from reciprocal pairing (Tr4). -/

depends on (12)

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