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intro
intro
intro
intro
intro
intro
cases 2
left
intro
cases 2
intro
cases 2
exact 1
new (J ∨ H β†’ E) β†’ ((F β†’ H) β†’ (F β†’ (A β†’ (D ∧ A β†’ ((G ∨ I β†’ E) β†’ (B β†’ ((H β†’ B ∧ D) β†’ (B ∧ J β†’ (((I ∨ H) ∨ I) ∨ B) ∨ (C ∨ ((J β†’ C) β†’ G))))))))))
intro
intro
intro
intro
intro
cases 4
intro
intro
intro
intro
cases 10
cases 4
cases 10
left
left
left
right
apply 1
exact 2
new A β†’ ((G β†’ E) β†’ (I ∨ J β†’ (F β†’ ((C ∨ H β†’ C) β†’ ((D β†’ C) β†’ (G ∧ A β†’ G ∧ (G ∨ C ∧ (C β†’ B))))))))
intro
intro
intro
intro
intro
intro
intro
cases 6
cases 6
constructor
exact 7
left
exact 7
new H β†’ (((G β†’ C) β†’ C) β†’ (((I β†’ B) β†’ J) β†’ (((D β†’ I) β†’ C) β†’ ((A β†’ C ∧ D) β†’ (I β†’ (((J β†’ F) β†’ B) β†’ ((F ∨ E β†’ J) β†’ (I β†’ (J ∨ (A β†’ D ∨ F) β†’ C)))))))))
intro
intro
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apply 1
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apply 1
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apply 1
intro