In the following proof, what is the statement on line 6? 1. 2. P₁ → (P₂v P3) (P₂) P3 3. P, 4. P₂ V P3 11. P3 12. P₁ → P3 P3 15.7 Рз 6. ??? 7. P3 8. P3 ^ (7 P3) 9. (P₂) (P3^(- P3)) 10. 7 (→ P3) NOT P2 P2 O NOT P3 premise premise assumption →Elim 1,3 assumption ✓ Elim 2,5 ✓ Elim 4,6 ^ Intro 7,5 → Intro 5-8 - Intro 9 10 → Intro 3-11 רר

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