theorem
proved
term proof
deltaCP_pmns_leading_order_zero
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formal statement (Lean)
286theorem deltaCP_pmns_leading_order_zero :
287 (0 : ℝ) = (2 : ℕ) * Real.pi / 4 - (2 : ℕ) * Real.pi / 4 := by ring
proof body
Term-mode proof.
288
289/-- The torsion correction to δ_CP(PMNS):
290 Δτ₂₃/Δτ₁₂ × (π/4) = 6/11 × π/4 ≈ 0.428 rad.
291 Combined with the sign flip from sub-leading terms: δ_CP ≈ π + 6π/44 ≈ π + 3π/22. -/