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refactor(library/logic/wf): minimize dependencies

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Leonardo de Moura 2014-11-06 14:59:03 -08:00
parent b177c84b06
commit 194247f75b
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library/logic/wf.lean
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@ -1,7 +1,7 @@
-- Copyright (c) 2014 Microsoft Corporation. All rights reserved. -- Copyright (c) 2014 Microsoft Corporation. All rights reserved.
-- Released under Apache 2.0 license as described in the file LICENSE. -- Released under Apache 2.0 license as described in the file LICENSE.
-- Author: Leonardo de Moura -- Author: Leonardo de Moura
import logic import logic.eq
inductive acc {A : Type} (R : A → A → Prop) : A → Prop := inductive acc {A : Type} (R : A → A → Prop) : A → Prop :=
intro : ∀x, (∀ y, R y x → acc R y) → acc R x intro : ∀x, (∀ y, R y x → acc R y) → acc R x