Which rule of inference makes the conclusion of this argument follow from its premise?
$[F ? ~(G \vee H)] ? (I \vee J) ?{[F ? ~(G\vee H)] · [F ? ~(G \vee H)]} ? (I \vee J)$
A)transportation
B)tautology
C)association
D)commutation

Question

Quizplus · Accepted Answer

The rule of inference used here is tautology, which involves repeating the same statement or formula. In this case, $[F ? ~(G \vee H)] ? (I \vee J)$ is repeated, making the argument a tautology.

Which Rule of Inference Makes the Conclusion of This Argument [F? (G∨H)]?(I∨J)?[F? (G∨H)]⋅[F? (G∨H)]?(I∨J)[F ? ~(G \vee H)] ? (I \vee J) ?{[F ? ~(G\vee H)] · [F ? ~(G \vee H)]} ? (I \vee J)[F? (G∨H)]?(I∨J)?[F? (G∨H)]⋅[F? (G∨H)]?(I∨J)

Which Rule of Inference Makes the Conclusion of This Argument $[F ? ~(G \vee H)] ? (I \vee J) ?{[F ? ~(G\vee H)] · [F ? ~(G \vee H)]} ? (I \vee J)$