Definition:Valid Argument/Also known as
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Valid Argument: Also known as
A valid argument is also known as a truth preserving argument.
Likewise, validity is also known as truth preservation.
Some authors use the term sound argument to mean the same thing that is defined here as a proof.
However, as some use sound argument to mean the same thing as a valid argument, it is recommended that this term not be used.
Sources
- 1965: E.J. Lemmon: Beginning Logic ... (previous) ... (next): Chapter $1$: The Propositional Calculus $1$: $1$ The Nature of Logic
- 1989: Ephraim J. Borowski and Jonathan M. Borwein: Dictionary of Mathematics ... (previous) ... (next): valid: 1 a. (Logic)