Fraenkel Set Theory

Famous quotes containing the words set and/or theory:

    1st Witch. When shall we three meet again?
    In thunder, lightning, or in rain?
    2nd Witch. When the hurly-burly’s done,
    When the battle’s lost and won.
    3rd Witch. That will be ere set of sun.
    1st Witch. Where the place?
    2nd Witch. Upon the heath.
    3rd Witch. There to meet with Macbeth.
    William Shakespeare (1564–1616)

    Don’t confuse hypothesis and theory. The former is a possible explanation; the latter, the correct one. The establishment of theory is the very purpose of science.
    Martin H. Fischer (1879–1962)