lean2/tests/lean/refute1.lean
Leonardo de Moura 8f5c2b7d9f feat(library/basic_thms): add Refute theorem
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2013-12-16 12:03:31 -08:00

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Variables a b : Bool
Axiom H : a /\ b
Theorem T : a := Refute (fun R, Absurd (Conjunct1 H) R)