real number system meaning in English

实数系

We say that the real number system is a continuum .
我们讲，实数系是一个连续集。
The question of the logical structure of the real number system was faced squarely .
实数系的逻辑结构问题被正视。
The basic prerequisite for reading this book is a familiarity with the real number system .
阅读本书必须熟悉实数系。
To fill the iii completeness of data relation , we need negative association rules , just as it needs negative real number in real number system , negative proposition in logic system
正如实数系统中需要负实数、逻辑系统中需要否命题一样，为了满足数据关系的完备性，我们需要负关联规则。