User blog comment:Vel!/1+w/@comment-5982810-20141011203204/@comment-1605058-20141011204454

Quote from Vel's comment: "For example, if we remove this restriction we get \((1 + \omega)[n] = 1 + \omega[n]\) and \((1 + \omega)[n] = \omega[n]\), so \(1 + \omega[n] = \omega[n]\) and \(1 = 0\)."