Stationary Set

In mathematics, particularly in set theory and model theory, there are at least three notions of stationary set:

Read more about Stationary Set:  Classical Notion, Jech's Notion, Generalized Notion

Famous quotes containing the words stationary and/or set:

    It is the dissenter, the theorist, the aspirant, who is quitting this ancient domain to embark on seas of adventure, who engages our interest. Omitting then for the present all notice of the stationary class, we shall find that the movement party divides itself into two classes, the actors, and the students.
    Ralph Waldo Emerson (1803–1882)

    One of the main tasks of adolescence is to achieve an identity—not necessarily a knowledge of who we are, but a clarification of the range of what we might become, a set of self-references by which we can make sense of our responses, and justify our decisions and goals.
    Terri Apter (20th century)