The problem of inference rules for multivalued dependency is the key to solve implication problem between dependencies in XML and the key problem of XML normalization theory.
XML多值依赖的推理规则集问题是解决XML数据依赖的蕴涵问题的基础，是XML规范化理论的关键问题之一。
And a set of complete inference rules about XML functional dependency is given.
然后给出了关于XML文档的函数依赖的一组完备的推理规则集。
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