theorem
proved
term proof
doublet_from_isospin
show as:
view Lean formalization →
formal statement (Lean)
213theorem doublet_from_isospin : leptonDoublet = 2 := rfl
proof body
Term-mode proof.
214
215/-! ## Decay Processes -/
216
217/-- Beta decay: n → p + e⁻ + ν̄e via W⁻. -/