lean2/tests/lean/tactic9.lean.expected.out

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Set: pp::colors
Set: pp::unicode
Defined: f
Proved: T
theorem T (a b : Bool) : a b ⇒ f b ⇒ a :=
discharge (λ H : a b, discharge (λ H::1 : f b, or::elim H (λ H : a, H) (λ H : b, absurd::elim a H H::1)))