In [[mathematics]], connectedness is used to refer to various properties [[meaning]], in some sense, "all one piece". When a mathematical object has such a property, we say it is connected; otherwise it is disconnected. When a disconnected object can be split naturally into connected pieces, each piece is usually called a [[component]] (or connected component). | In [[mathematics]], connectedness is used to refer to various properties [[meaning]], in some sense, "all one piece". When a mathematical object has such a property, we say it is connected; otherwise it is disconnected. When a disconnected object can be split naturally into connected pieces, each piece is usually called a [[component]] (or connected component). |