Definition:Categorical Syllogism/Middle Term
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Definition
The middle term of a categorical syllogism is the term that does not appear in the conclusion of the syllogism.
It appears once in each of the premises of the syllogism.
It is usually denoted by $M$.
Also known as
Some sources denote it by the letter $G$.
Sources
- 1965: E.J. Lemmon: Beginning Logic ... (previous) ... (next): Chapter $4$: The Predicate Calculus $2$: $4$ The Syllogism
- 1998: David Nelson: The Penguin Dictionary of Mathematics (2nd ed.) ... (previous) ... (next): syllogism
- 2008: David Nelson: The Penguin Dictionary of Mathematics (4th ed.) ... (previous) ... (next): syllogism