To understand recursion, one must recognize the distinction between a procedure and the running of a procedure.

A postmodernist approach to popular culture would no longer recognize the distinction between high and popular culture.

Many mycologists do not recognize the distinction; however, several molecular studies have demonstrated that they are two distinct genera, with clear morphological differences.

This means that the long sixteenth century may be thought of as already recognizing the distinction between positive and negative liberty, although 'not yet dominated by it'.

Some courts have recognized a distinction authorizing police to demand identifying information and specifically imposing an obligation of a suspect to respond.