查询词典 Boolean logic

I believe that it's very useful for Computer science students who learning Boolean algebra and predicate logic.

我相信对于学习布尔代数学和谓词逻辑的计算机科学学生来说它是非常有用的。

There is no tautology in the three-valued logic whose boolean connectives are Kleene implication and the negation in open-world.

但是，Kleene的蕴含词&→&和开放世界假定的否定词&&构成的三值命题逻辑系统没有重言式，通过选定特定的重言式作为推理的出发点进行推理行不通了。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。