Overly Broad or Narrow Definitions
A definition is no good if it defines its subject with overly wide or narrow parameters. For example, "a shape with four sides of equal length" is not a good definition for 'square'. Why? Not only squares have four sides of equal length; rhombi do as well. This is proven by identifying not only the term being defined, but also the conditions in the definition. Likewise, defining a 'rectangle' as "a shape with four perpendicular sides of equal length" is not valid because it is too narrow.
Read more about this topic: Fallacies Of Definition
Famous quotes containing the words overly, broad, narrow and/or definitions:
“Manners are of such great consequence to the novelist that any kind will do. Bad manners are better than no manners at all, and because we are losing our customary manners, we are probably overly conscious of them; this seems to be a condition that produces writers.”
—Flannery O’Connor (1925–1964)
“I hardly know an intellectual man, even, who is so broad and truly liberal that you can think aloud in his society. Most with whom you endeavor to talk soon come to a stand against some institution in which they appear to hold stock,—that is, some particular, not universal, way of viewing things. They will continually thrust their own low roof, with its narrow skylight, between you and the sky, when it is the unobstructed heavens you would view.”
—Henry David Thoreau (1817–1862)
“When a village ceases to be a community, it becomes oppressive in its narrow conformity. So one becomes an individual and migrates to the city. There, finding others likeminded, one re- establishes a village community. Nowadays only New Yorkers are yokels.”
—Paul Goodman (1911–1972)
“Lord Byron is an exceedingly interesting person, and as such is it not to be regretted that he is a slave to the vilest and most vulgar prejudices, and as mad as the winds?
There have been many definitions of beauty in art. What is it? Beauty is what the untrained eyes consider abominable.”
—Edmond De Goncourt (1822–1896)