Equivalence Class Structure

Famous quotes containing the words class and/or structure:

    “The history of all previous societies has been the history of class struggles.”
    —Karl Marx (1818–1883)

    “For the structure that we raise,
    Time is with materials filled;
    Our to-days and yesterdays
    Are the blocks with which we build.”
    —Henry Wadsworth Longfellow (1809–1882)