6 lines
230 B
Text
6 lines
230 B
Text
Set: pp::colors
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Set: pp::unicode
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Proved: T
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Theorem T (a b : Bool) : a ∨ b ⇒ ¬ b ⇒ a :=
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Discharge
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(λ H : a ∨ b, Discharge (λ H::1 : ¬ b, DisjCases H (λ H : a, H) (λ H : b, AbsurdImpAny b a H H::1)))
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