From f32aa2081c280860c7106c8c89cff67ff3f78079 Mon Sep 17 00:00:00 2001 From: Patrick Mahoney Date: Fri, 3 Aug 2012 16:58:35 -0400 Subject: [PATCH] Remove scheme/bool dependency --- collects/frtime/lang-ext.rkt | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/collects/frtime/lang-ext.rkt b/collects/frtime/lang-ext.rkt index b7b4580fa9..936588680d 100644 --- a/collects/frtime/lang-ext.rkt +++ b/collects/frtime/lang-ext.rkt @@ -1,6 +1,5 @@ #lang racket/base (require frtime/core/frp - scheme/bool scheme/list (only-in mzlib/etc rec identity) @@ -152,7 +151,7 @@ new-clause ...) )])) -(define undefined?/lifted (lambda (arg) (lift false undefined? arg))) +(define undefined?/lifted (lambda (arg) (lift #f undefined? arg))) (define (event? v) (and (signal? v)