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

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

    If grandparents want to have a meaningful and constructive role, the first lesson they must learn is that becoming a grandparent is not having a second chance at parenthood!
    Eda Le Shan (20th century)

    Ceremony was but devised at first
    To set a gloss on faint deeds, hollow welcomes,
    Recanting goodness, sorry ere ‘tis shown;
    But where there is true friendship, there needs none.
    William Shakespeare (1564–1616)

    A theory if you hold it hard enough
    And long enough gets rated as a creed....
    Robert Frost (1874–1963)