Stationary set
= Stationary set
{wiki=Stationary_set}
In set theory, a **stationary set** is a concept related to the properties of infinite sets, particularly in the context of uncountable cardinals and the study of subsets of the following types: 1. **Stationary Set:** A subset \\( S \\) of a regular uncountable cardinal \\( \\kappa \\) is called a stationary set if it intersects every closed and bounded subset of \\( \\kappa \\).