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1. (W . (R v T ) ) > P
2. ( P v L ) > ~ H
3. W
4. R
:. ~ H
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5. R v T 4 Addition
6. W . (R v T ) 3,5 Conjunction
7. P 1,6 Modus Ponens
8. P v L 7 Addition
9. ~H 2,9 Modus Ponens