Fraenkel Set Theory

Famous quotes containing the words set and/or theory:

“[My mother told me:] “You must decide whether you want to get married someday, or have a career.”... I set my sights on the career. I thought, what does any man really have to offer me?”
—Annie Elizabeth Delany (b. 1891)

“No theory is good unless it permits, not rest, but the greatest work. No theory is good except on condition that one use it to go on beyond.”
—André Gide (1869–1951)