第三章 关于概率与信息论有向图中的阻塞定义在文本上的歧义的修改请求

The description of path blocking states that any of the following two conditions is considered a block: "There is a node X in the path that is a head-to-head node, and either X or X's descendants are not included in C." Due to my lack of computer background, I was confused by the ambiguity of "X is not included" or "son is not included" when reading this. After investigation, it turned out that this is not the case. It is recommended to modify it to "X and its descendants are not included in C."