Question: Exercise: use the short truth-table method to test each argument for validity. 1. P; P - Q .: Q 2. Q; P - Q ..

Exercise: use the short truth-table method to test each argument for validity. 1. P; P - Q .: Q 2. Q; P - Q .. P 3. P v Q; Q . P 4 . ~ P ~ Q . : P Q 5 . ~ P V ~ Q . . P Q 6. P v Q; P - R; Q - R .. R 7. P - ( Q - R) . . ( P - Q) - (P - R) 8 . Pen ( Q R ) :. ( P = Q ) ( PR ) 9. P; Q v R; P - Q; R S. S 10. P = (Q V R) .. ( P Q) V ( P R) 11. P ( Q V R) . (P v Q) R 12. ~(P Q); (P R) VS; S - Q . RV ~P 13. PV (Q = R) .. (PVQ) - (PVR) 14. ( ( P T) - Q) -~R; ~(R - S); T- S . S 15. ~((P v Q) - R); Q - R . P R 16. P v Q; Q - (R ~ S); ( S T) - Q; ~ T - ~P . .. Q

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