Dense set
= Dense set
{wiki=Dense_set}
In mathematics, particularly in topology, a set \\( A \\) is referred to as a **dense set** in a space \\( X \\) if every point in \\( X \\) is either an element of \\( A \\) or is arbitrarily close to a point in \\( A \\). More formally, a subset \\( A \\) of a topological space \\( X \\) is dense in \\( X \\) if the closure of \\( A \\) is equal to \\( X \\).