Cascading discontinuity set

In the context of mathematics, particularly in topology and set theory, the term "cascading discontinuity set" is not widely recognized or defined. It is possible that this term could refer to a specific concept in a niche area of study or might be a term used in a particular paper or context. However, generally speaking, a discontinuity in a function or a sequence refers to points at which the function or sequence does not behave continuously.