This set is called the knowledge state of the subject.

The set of allowed codes is then called the model class.

A set of card(s) that can be played at once is called a legal play.

The set of limits based on human health is called primary standards.

The second set of work goals can be collectively called structure.

All days are also grouped into sets of seven, called weeks.

This set is sometimes called the fiber of b under f.

The set of basis functions is usually called a dictionary.

Such a set of four numbers is called a quaternion.

The set of all possible knowledge states is called the knowledge structure.