In mathematics, more specifically in abstract algebra, the concept of integrally closed has two meanings, one for groups and one for rings.
Read more about Integrally Closed: Commutative Rings, Ordered Groups
Famous quotes containing the word closed:
“What I call middle-class society is any society that becomes rigidified in predetermined forms, forbidding all evolution, all gains, all progress, all discovery. I call middle-class a closed society in which life has no taste, in which the air is tainted, in which ideas and men are corrupt. And I think that a man who takes a stand against this death is in a sense a revolutionary.”
—Frantz Fanon (1925–1961)