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**Unformatted text preview: **E ∴ p ∨ r INVALID 10. D ⊃ O________ p ⊃ q_______ ∴ (D ∧ ∼ O) ⊃ W ∴ (p ∧ ∼ q) ⊃ r VALID p q r p q q ⊃ r r T T T T T T T T T F T T F F T F T T F T T T F F T F T F F T T F T T T F T F F T F F F F T F F T T F F F F F T F p q r p ∨ q q ∨ r p ∨ r T T T T T T T T F T T T T F T T T T T F F T F T F T T T T T F T F T T F F F T F T T F F F F F F p q r p ⊃ q (p ∧ ∼ q) ⊃ r T T T T F F T T T F T F F T T F T F T T T T F F F T T F F T T T F F T F T F T F F T F F T T F T T F F F T F T T...

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- Spring '08
- CBHaufe