title: How to define a connected bipartite graph?
body: <p>I know what a connected graph is - "A graph is connected when there is a path between every pair of vertices". But I am skeptical about how to define a connected bipartite graph. Is the following correct?
  "When every vertex in the first subset has a edge with every vertex in the second subset"</p>
  
  <p>Please comment. Need help!</p>