Equivalence Class Structure

Famous quotes containing the words class and/or structure:

    We must not discriminate between things. Where things are concerned there are no class distinctions. We must pick out what is good for us where we can find it.
    Pablo Picasso (1881–1973)

    If rightly made, a boat would be a sort of amphibious animal, a creature of two elements, related by one half its structure to some swift and shapely fish, and by the other to some strong-winged and graceful bird.
    Henry David Thoreau (1817–1862)