Middle term
The middle term must distributed in at least one premise
Premise can refer to:* Premise, a claim that is a reason for, or an objection against, some other claim as part of an argument...

s but not in the conclusion of a categorical syllogism. The major term
Major term
The major term is the predicate term of the conclusion of a categorical syllogism. It appears in the major premise along with the middle term and not the minor term. It is an end term .Example:...

 and the minor term
Minor term
The minor term is the subject term of the conclusion of a categorical syllogism. It also appears in the minor premise together with the middle term. Along with the major term it is one of the two end terms.Example:...

s, also called the end term
End term
The end terms in a categorical syllogism are the major term and the minor term . These two terms appear together in the conclusion and separately with the middle term in the major premise and minor premise, respectively.Example:...

s, do appear in the conclusion.

Major premise: All men are mortal.
Minor premise: Socrates is a man.
Conclusion: Socrates is mortal.

The middle term is bolded above.
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