# 三元组

前面的内容我们已经充分地介绍了秩的基础定义和推算方式。但是，大多数时候结构都并非长得那么规整，所以我们需要将理论进行推广，才能更好地运用。

下面我们要介绍的内容是比较复杂的概念，它的真假性会直接影响最终结构填数的个数。


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