Rule of Transposition/Also known as

Rule of Transposition: Also known as

The Rule of Transposition is also known as:

the Law of Transposition

the Rule of Contraposition

the Law of Contraposition.

Sources

• 1946: Alfred Tarski: Introduction to Logic and to the Methodology of Deductive Sciences (2nd ed.) ... (previous) ... (next): $\S \text{II}.14$: Application of laws of sentential calculus in inference
• 1959: A.H. Basson and D.J. O'Connor: Introduction to Symbolic Logic (3rd ed.) ... (previous) ... (next): $\S 3.6$: Reference Formulae: $\text {RF} \, 16$
• 1978: Thomas A. Whitelaw: An Introduction to Abstract Algebra ... (previous) ... (next): $\S 4$: The implies sign ($\Rightarrow$): $4.1$
• 1996: H. Jerome Keisler and Joel Robbin: Mathematical Logic and Computability ... (previous) ... (next): $\S 1.13$: Tableau Problems (TAB1): CONTR