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Relation: subrelation

direct-childrendocumentationgraph
    domain.为声明某种特定关系参数的类型, 提供一个便利计算机和应用启发 式运算的机制。公式(domain ?REL ?INT ?CLASS)的意思是在?REL关系中,每个元组的第?INT个元素,必须是 ?...^

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