 With this definition, we can define "X" to be "n"-connected if and only if

The corresponding "relative" notion to the "absolute" notion of an "n"-connected "space" is an "n"-connected "map", which is defined as a map whose homotopy fiber "Ff" is an ("n" − 1)-connected space.In terms of homotopy groups, it means that a map formula_5 is "n"-connected if and only if