Within critical theory, the notion of sign takes various usages.

Within set theory, many collections of sets turn out to be proper classes.

Within feminist theory, terminology for gender issues developed over the 1970s.

These concepts are today the most dominant within contemporary political theory.

Within political theory the work of John Dewey has been particularly influential.

A basic principle subsumed within business practice and economic theory alike is the notion of free will.

Within standard economic theory, though, this is the only correct answer.

These works are widely considered seminal to the development of the new institutionalism within organizational theory.

Therefore, within Marxist theory, should the differentiation between classes disappear, so too will the state.

His research has been interdisciplinary within educational theory, linguistics, social psychology and political science.