Name the rule of inference ( P ? q ) ? Q ? P )
A)Double Negation ( D .N )-
B)Tautology ( Taut )-
C)Transposition (Trans )-
D)Material Equivalence ( Equiv )-

Question

Quizplus · Accepted Answer

Transposition (Trans) is the correct rule of inference for the given formula. In transposition, the implication $P \rightarrow Q$ can be rewritten as $\neg Q \rightarrow \neg P$, which is similar in structure to the given formula.

Name the Rule of Inference ( P ? Q )