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:
“For rhetoric, he could not ope
His mouth, but out there flew a trope;
And when he happen’d to break off
I’ th’ middle of his speech, or cough,
H’ had hard words ready to show why,
And tell what rules he did it by;”
—Samuel Butler (1612–1680)
“As the term of my relief from this place [Washington, D.C.] approaches, it’s drudgery becomes more nauseating and intolerable, and my impatience to be with you at Monticello increases daily.”
—Thomas Jefferson (1743–1826)