Constructive Set Theory/intuitionistic Zermelo-fraenkel

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)

    “They set up a noise like crickets,
    A chattering wise and sweet,
    And her hair was a folded flower
    And the quiet of love in her feet.”
    —William Butler Yeats (1865–1939)

    “Thus the theory of description matters most.
    It is the theory of the word for those
    For whom the word is the making of the world,
    The buzzing world and lisping firmament.”
    —Wallace Stevens (1879–1955)