prop_logic_puzzle / example_num_vars7_depth7 /puzzle_2831ab9fdaa0785b.txt
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new (A β†’ B) β†’ (G β†’ (A ∨ G β†’ (A ∨ F β†’ (((B β†’ E) β†’ C) β†’ (D β†’ (B ∨ F) ∨ C)))))
intro
intro
intro
intro
intro
intro
left
cases 2
left
apply 0
exact 6
cases 3
left
apply 0
exact 8
right
exact 9