/- Copyright (c) 2014 Microsoft Corporation. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Leonardo de Moura -/ prelude import init.reserved_notation -- this is not in init.types, because that file depends on init.num, -- which depends on these definitions namespace bool definition cond {A : Type} (b : bool) (t e : A) := bool.rec_on b e t definition bor (a b : bool) := bool.rec_on a (bool.rec_on b ff tt) tt infix || := bor definition band (a b : bool) := bool.rec_on a ff (bool.rec_on b ff tt) infix && := band definition bnot (a : bool) := bool.rec_on a tt ff end bool