prop_logic_puzzle / example_num_vars7_depth7 /puzzle_2d3e1ffbddd0acbd.txt
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new (F ∨ E β†’ D) β†’ (((D β†’ B) β†’ D) β†’ (G ∧ E β†’ ((D β†’ F) β†’ ((E β†’ B) β†’ ((G β†’ C) β†’ (((A β†’ F) β†’ E) β†’ (C ∨ E) ∨ D))))))
intro
intro
intro
cases 2
intro
intro
intro
intro
cases 2
left
left
apply 7
exact 3