prop_logic_puzzle / example_num_vars7_depth10 /puzzle_2d2c2377b0b70c9c.txt
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new (C ∨ G β†’ A) β†’ (D ∨ E β†’ ((G ∨ C β†’ A) β†’ (F β†’ (C β†’ A ∨ E))))
intro
intro
intro
intro
intro
left
apply 0
left
exact 4