给出模糊空值连接依赖的公理系统，并且进行了有效性证明。

The axiom of fuzzy null value join dependency is introduced and its availability is proved.

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介绍了模糊空值环境下的嵌入多值依赖、广义连接依赖、子集依赖，及其相应的公理系统。

This paper introduces embedded multivalued dependency, generalized join dependency, subset dependency under fuzzy null value circumstances and corresponding axiom.

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定义了模糊空值嵌入连接依赖。

Fuzzy null embedded join dependency is defined.

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