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 contented and economically comfortable have a very discriminating view of government. Nobody is ever indignant about bailing out failed banks and failed savings and loans associations.... But when taxes must be paid for the lower middle class and poor, the government assumes an aspect of wickedness.”
—John Kenneth Galbraith (b. 1908)
“There are no illegitimate children, only illegitimate parents—if the term is to be used at all.”
—Bernadette McAliskey (Nee Devlin)