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

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

    Euphemisms are not, as many young people think, useless verbiage for that which can and should be said bluntly; they are like secret agents on a delicate mission, they must airily pass by a stinking mess with barely so much as a nod of the head, make their point of constructive criticism and continue on in calm forbearance. Euphemisms are unpleasant truths wearing diplomatic cologne.
    Quentin Crisp (b. 1908)

    O these encounterers, so glib of tongue,
    That give a coasting welcome ere it comes,
    And wide unclasp the tables of their thoughts
    To every ticklish reader! Set them down
    For sluttish spoils of opportunity
    And daughters of the game.
    William Shakespeare (1564–1616)

    There never comes a point where a theory can be said to be true. The most that one can claim for any theory is that it has shared the successes of all its rivals and that it has passed at least one test which they have failed.
    —A.J. (Alfred Jules)