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- when statements are used to replace statement variables (the same statement replacing the same statement variable throughout), the result is a logical argument.
Also known as
An argument form is also known as a logical form by some writers, but the latter term is imprecise and is also found to mean statement form.
- 1959: A.H. Basson and D.J. O'Connor: Introduction to Symbolic Logic (3rd ed.) ... (previous) ... (next): $\S 1.2$: The Use of Symbols
- 1965: E.J. Lemmon: Beginning Logic ... (previous) ... (next): $\S 1.1$: The Nature of Logic
- 1973: Irving M. Copi: Symbolic Logic (4th ed.) ... (previous) ... (next): $2.3$: Argument Forms and Truth Tables