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反证法是一种重要的证明方法。反证法不仅在初等数学里是必需的,而且在高等数学里也是常用的,它是“双基”的重要组成部分,是中学生必需掌握和灵活运用的一种重要的证明方法,教学中应予以重视。
Anti-evidence is an important method of proof. The counterevidence method is not only necessary in elementary mathematics, but also is commonly used in higher mathematics. It is an important component of the “double base” and is an important proof method that middle school students must master and use flexibly. It should be emphasized in teaching. .