prop_logic_puzzle / example_num_vars8_depth8 /puzzle_1e865cf7283c091b.txt
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new (H β†’ E ∧ G) β†’ (((B β†’ G) β†’ E) β†’ (C β†’ ((G ∨ D β†’ E) β†’ ((F ∧ A) ∧ D β†’ (A ∨ (B ∨ F)) ∨ (F ∨ A)))))
intro
intro
intro
intro
intro
cases 4
cases 4
cases 5
cases 7
left
left
exact 10