theorem
proved
term proof
deltaCP_pmns_in_third_quadrant
show as:
view Lean formalization →
formal statement (Lean)
296theorem deltaCP_pmns_in_third_quadrant :
297 Real.pi < deltaCP_pmns_torsion_correction ∧
298 deltaCP_pmns_torsion_correction < 3 * Real.pi / 2 := by
proof body
Term-mode proof.
299 unfold deltaCP_pmns_torsion_correction
300 constructor
301 · linarith [Real.pi_pos]
302 · linarith [Real.pi_pos]
303
304/-- δ_CP(PMNS) ∈ (π, 2π) — consistent with the observed ≈ 197° = 1.094π. -/