lean2/tests/lean/refute1.lean

variables a b : Bool
axiom H : a /\ b
theorem T : a := by_contradiction (fun R, absurd (and_eliml H) R)
feat(frontends/lean): use lowercase commands, replace 'endscope' and 'endnamespace' with 'end' Signed-off-by: Leonardo de Moura <leonardo@microsoft.com> 2014-01-05 20:05:08 +00:00			`variables a b : Bool`
			`axiom H : a /\ b`
refactor(builtin/kernel): rename refute to by_contradiction Signed-off-by: Leonardo de Moura <leonardo@microsoft.com> 2014-02-12 16:49:19 +00:00			`theorem T : a := by_contradiction (fun R, absurd (and_eliml H) R)`