 This presentation gives exactly the same solution as that of Boole, but without  the mysterious use of fractions like \(0/0\) and \(1/0\). Boole used formal division to express \(x\) as \(N\) divided by \(D\), and then a formal expansion where  the coefficient of the constituent \(C(a_1, y_1) \cdots C(a_k,  y_k)\) is the fraction 