推理与证明中的问题蕴含着许多数学思想,解题具有独特的技巧与方法,因此推理与证明是高考重点考查的内容之一.理论上讲,高考试题中的每道题都要推理;证明涉及范围也比较广,如函数的有关论证、不等式的证明、数列的有关证明、立体几何中的证明、解析几何的有关证明等.本文旨在突破合情推理以及反证法和数学归纳法等重点和热点问题. Reasoning and proof of the problem contains a lot of mathematical thinking, problem-solving has unique skills and methods, so reasoning and proof is one of the key points of the college entrance examination exams. Theoretically speaking, each question in the college entrance examination questions to be reasoned; proof The scope of the study is also relatively wide, such as the argument of function, the proof of inequality, the proof of number series, the proof of solid geometry and the proof of analytic geometry etc. The purpose of this paper is to break through the key points of co-rationality reasoning and proof and mathematical induction Hot Issues.