Connected
Description: A space $X$ is said to be connected if there does not exist a separation of $X$. A separation of $X$ is a pair $U, V$ of disjoint nonempty open subsets of $X$ whose union is $X$.
Description: A space $X$ is said to be connected if there does not exist a separation of $X$. A separation of $X$ is a pair $U, V$ of disjoint nonempty open subsets of $X$ whose union is $X$.