Postgraduate entrance examination mathematics has proof questions. Generally, there will be a proof problem in Math II for postgraduate entrance examination. There are five types of mathematical proof questions for postgraduate entrance examination: proof of sequence limit, related proof of differential mean value theorem, problem of equation root, proof of inequality, proof of definite integral equality and inequality, and five equivalent conditions that integral has nothing to do with path. Mathematics preparation for postgraduate entrance examination: the first volume of advanced mathematics in Tongji Sixth Edition, linear algebra in Tongji Fifth Edition and probability theory in Zhejiang University Fourth Edition. Secondly, review the whole book. Finally, the real questions and simulation questions of the postgraduate entrance examination over the years. According to the difficulty of the school, the requirements for mathematics are different. If you want to get into a better school, you should read the whole book two or three times.