Rules constitute a family, rather than a class that can be explicitly defined.

They are defined explicitly on page 6 of the eighth edition, and in other ways, throughout the book.

Therefore, the duties of care legal regulations are not explicitly defined yet.

Whether 2046 is a place, a room, or a state of mind is never explicitly defined.

The exact dimensions of the Village are never explicitly defined.

These groups are hoping the Court, for the first time, will explicitly define alcoholism as a disease.

Important to the challenge point framework, task difficulty is not explicitly defined.

Plates are not explicitly defined in terms of their mechanical properties.

It also does not require every nonterminal to be explicitly defined.

Weak 2-categories, also called bicategories, were the first to be defined explicitly.