摘 要:本文首先从推理的概念及其形式结构出发,介绍了与推理有关的基础知识;其次从形式结构上探讨推理正确与错误的判断标准;最后总结出证明推理正确或错误的方法,如真值表法,等值演算法,主范式法和利用推理规则的构造证明法等,特别是对于构造证明法,重点介绍了直接证明法、附加前提证明法和归谬法.38909 毕业论文关键词:真值表;主范式;推理
The Inference Method in Propositional Logic
Abstract: This paper firstly introduces the basic knowledge related to inference, starting from the concept and the form structure. Secondly, I have discussed the criterion of right or wrong from the structure of inference in the paper. Finally, there is a summary about inference methods to proof wrong or right, such as the truth table method, equivalent algorithm, principal normal form and the construction using the structure of the inference rules and so on. Especially the construction method, the paper focused on introduces direct proof method, additional premise proof method and reduction to absurdity.
Key words: Truth table; Principal normal form; Inference
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