Pearl's d-separation is a foundational notion to study conditional independence between random variables. We define the topological conditional separation and we show that it is equivalent to the d-separation, extended beyond acyclic graphs, be they finite or infinite.

翻译：珍珠的 d 分离是一个基本概念,用来研究随机变量之间的有条件独立。我们定义了表层条件分离,并表明它相当于d 分离,超越了环形图,无论它们是有限的还是无限的。