Algebra tends to the study of the explicit structure of postulationally defined systems closed with respect to one or more rational operations.


Some Recent Advances in Algebra, The American Mathematical Monthly, Volume 46, January 1939 (p. 18)

George David Birkhoff Quotes

Algebra tends to the study of the explicit structure of postulationally defined systems closed with respect to one or more rational operations.

Algebra tends to the study of the explicit structure of postulationally defined systems closed with respect to one or more rational operations.

Algebra tends to the study of the explicit structure of postulationally defined systems closed with respect to one or more rational operations.

Algebra tends to the study of the explicit structure of postulationally defined systems closed with respect to one or more rational operations.