1. (A v ~B) > (F v (R . G)) 2. A 3. F > L 4. (R . G) > T 5. (L v T) > S :. S -------------------------------------------------------------------------------------------------------------- 6. A v ~B 2 Addition 7. F v (R . G) 1,6 Modus Ponens 8. (F > L) . ( (R . G) > T ) 3,4 Conjunction 9. L v T 8,7 Constructive Dilemma 10. S 5,9 Modus Ponens