Sound legal arguments require both valid reasoning and true premises

Evidence

Arguments that have both valid or cogent reasoning and true premises are sound arguments. Thus, an argument fails to be sound if either (a) the reasoning it employs from premises to conclusion is not acceptable, or (b) one or more of its premises is false. — Ruggero J. Aldisert, Agatha D. Aldisert, Logic for Lawyers- A Guide to Clear…, 250

Categorization

• corroborated: 2 independent passages support this claim — Ruggero J. Aldisert, Agatha D. Aldisert, Logic for Lawyers- A Guide to Clear…, 250
• XREF: connects to: Judicial decisions are governed by beliefs about facts and rules — Ruggero J. Aldisert, Agatha D. Aldisert, Logic for Lawyers- A Guide to Clear…, 160; A sound deductive argument is valid and contains true premises — Ruggero J. Aldisert, Agatha D. Aldisert, Logic for Lawyers- A Guide to Clear…, 267; Validity of a syllogism relates exclusively to form rather than content — Ruggero J. Aldisert, Agatha D. Aldisert, Logic for Lawyers- A Guide to Clear…, 443 (+8 more)

Library Connections

• A sound deductive argument is valid and contains true premises #corroborates (0.95) — Ruggero J. Aldisert, Agatha D. Aldisert, Logic for Lawyers- A Guide to Clear…, 267