In logic, a middle term is a term that appears (as a subject or predicate of a categorical proposition) in both premises but not in the conclusion of a categorical syllogism. The middle term (in bold below) must be distributed in at least one premise but not in the conclusion. The major term and the minor terms, also called the end terms, do appear in the conclusion.
Example:
- Major premise: All men are mortal.
- Minor premise: Socrates is a man.
- Conclusion: Socrates is mortal.
The middle term is bolded above.
Famous quotes containing the words middle and/or term:
“The test of an adventure is that when you’re in the middle of it, you say to yourself, “Oh, now I’ve got myself into an awful mess; I wish I were sitting quietly at home.” And the sign that something’s wrong with you is when you sit quietly at home wishing you were out having lots of adventure.”
—Thornton Wilder (1897–1975)
“We now demand the light artillery of the intellect; we need the curt, the condensed, the pointed, the readily diffused—in place of the verbose, the detailed, the voluminous, the inaccessible. On the other hand, the lightness of the artillery should not degenerate into pop-gunnery—by which term we may designate the character of the greater portion of the newspaper press—their sole legitimate object being the discussion of ephemeral matters in an ephemeral manner.”
—Edgar Allan Poe (1809–1845)