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命题与定理是平面几何研究的主要内容之一,下面请陈老师跟同学们谈谈命题与定理的有关问题,供同学们学习时参考.1.命题及其真假命题是学术上的一个名词,不为数学所独有.凡属于判断真假的陈述句都是命题,它有三个特征:(1)具有判断性;(2)有真假之分;(要说明一个命题是真命题需要证明,而要说明一个命题是假命题,只要举一个反例就可以了)
Propositions and theorems are one of the main contents of the study of plane geometry. Please ask Professor Chen to talk with students about the propositions and theorems for reference. 1 Propositions and their true and false propositions are academic terms , Is not unique to mathematics.All statements that are true and false statements are propositions, it has three characteristics: (1) has a judgmental; (2) there is a distinction between true and false; (to illustrate a proposition is a true proposition need to prove , But to illustrate a proposition is a false proposition, as long as a counterexample on it)