一、什么是演绎推理在日常生活和数学学习中,我们经常以某些一般的判断为前提,得出一些个别、具体的判断。例如:“所有的金属都能导电,铜是金属,所以铜能导电”等。类似于这种从一般性原理出发,推出某个特殊情况下的结论,我们把这种推理称为演绎推理。演绎推理是数学中一种常见而重要的推理方法。演绎推理一般表现为大前提、小前提、结论的三段论模式:大前提——已知的一般性原理,小前提——所研究的特殊情况,结 First, what is the deductive reasoning In everyday life and mathematics learning, we often take some of the general judgments as the premise, come to some individual and specific judgments. For example: “All metals are conductive, copper is metal, so copper is conductive.” Similar to this from the general principle, the introduction of a particular case of the conclusion, we call this reasoning deductive reasoning. Deductive reasoning is a common and important reasoning method in mathematics. Deductive reasoning generally manifests itself as a syllogism of the major premise, the minor premise, and the conclusion: the general premise - the known general principle, the minor premise - the special case under study, the knot