一般的,在数学中把用语言、符号或式子表达的,可以判断真假的陈述句叫做命题。其中判断为真的语句叫做真命题,判断为假的语句叫做假命题。 如果A,B是两个命题,两者可以互相证明,即由A可以推导出B,且由B可以推导出A,那么A和B叫做等价命题。等价命题之间具有相同的真假性。
结果给出了该类半环成为分配格的几个等价命题。
Results Some equivalent statements are obtained concerning a semiring becoming a distributive lattice.
本文通过变分法欧拉方程推导出极小曲面的几个等价命题。
This paper investigates several equiyalent propositions of minimal curve surface by means of the euler equation of calculus of variations .
本文给出了关于准正则图的五个等价命题,使我们可以更好了解准正则图的本质。
This paper gives five equivalent propositions for almost regular graphs, and so that we can see the almost regular graphs better.
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