Constructive Set Theory/aczels Constructive Zermelo%e2%80%93fraenkel

Famous quotes containing the words constructive, set and/or theory:

    Friendship among nations, as among individuals, calls for constructive efforts to muster the forces of humanity in order that an atmosphere of close understanding and cooperation may be cultivated.
    Franklin D. Roosevelt (1882–1945)

    He could walk, or rather turn about in his little garden, and feel more solid happiness from the flourishing of a cabbage or the growing of a turnip than was ever received from the most ostentatious show the vanity of man could possibly invent. He could delight himself with thinking, “Here will I set such a root, because my Camilla likes it; here, such another, because it is my little David’s favorite.”
    Sarah Fielding (1710–1768)

    The great tragedy of science—the slaying of a beautiful theory by an ugly fact.
    Thomas Henry Huxley (1825–1895)