Valid syllogisms require every term used consistently throughout

Evidence

It is important to keep in mind Rule One of the categorical syllogism: A valid categorical syllogism must contain exactly three terms, each of which is used in the same sense throughout the argument. — Ruggero J. Aldisert, Agatha D. Aldisert, Logic for Lawyers- A Guide to Clear…, 1199

Categorization

• DEFINE: States Rule One, a foundational requirement for testing syllogistic validity.
• corroborated: 2 independent passages support this claim — Ruggero J. Aldisert, Agatha D. Aldisert, Logic for Lawyers- A Guide to Clear…, 1199
• XREF: connects to: A categorical syllogism must contain exactly three terms used consistently — Ruggero J. Aldisert, Agatha D. Aldisert, Logic for Lawyers- A Guide to Clear…, 839; The middle term must be distributed in at least one premise — Ruggero J. Aldisert, Agatha D. Aldisert, Logic for Lawyers- A Guide to Clear…, 845; A valid categorical syllogism requires its middle term distributed once — Ruggero J. Aldisert, Agatha D. Aldisert, Logic for Lawyers- A Guide to Clear…, 851 (+4 more)

Broader Connections

• A valid syllogism must involve exactly three distinct terms. #expands (0.80) — Ruggero J. Aldisert, Agatha D. Aldisert, Logic for Lawyers- A Guide to Clear…, 455
• Validity of a syllogism relates exclusively to form rather than content #contradicts (0.60) — Ruggero J. Aldisert, Agatha D. Aldisert, Logic for Lawyers- A Guide to Clear…, 443
• Relying on isolated phrases ripped from context commits a fallacy #exemplifies (0.50) — Ruggero J. Aldisert, Agatha D. Aldisert, Logic for Lawyers- A Guide to Clear…, 1232