X-Git-Url: http://git.megacz.com/?a=blobdiff_plain;f=Control%2FArrow.hs;h=f3c1de2f3b9ca9e5887446c2a64ec42285891fbe;hb=8afc9fecd586d3c4f7ef9c69fb1686a79e5f441d;hp=3fa7e1e04163ba0b184c7af235ebed64121a4d9c;hpb=53e1fe37ade34c02b796daa6f05614870b41f5d8;p=ghc-base.git

diff --git a/Control/Arrow.hs b/Control/Arrow.hs
index 3fa7e1e..f3c1de2 100644
--- a/Control/Arrow.hs
+++ b/Control/Arrow.hs
@@ -39,7 +39,6 @@ module Control.Arrow (
         ) where
 
 import Prelude hiding (id,(.))
-import qualified Prelude
 
 import Control.Monad
 import Control.Monad.Fix
@@ -94,8 +93,6 @@ class Category a => Arrow a where
         f &&& g = arr (\b -> (b,b)) >>> f *** g
 
 {-# RULES
-"identity"
-                arr id = id
 "compose/arr"   forall f g .
                 (arr f) . (arr g) = arr (f . g)
 "first/arr"     forall f .
@@ -217,9 +214,9 @@ class Arrow a => ArrowChoice a where
 "fanin/arr"     forall f g .
                 arr f ||| arr g = arr (f ||| g)
 "compose/left"  forall f g .
-                left f >>> left g = left (f >>> g)
+                left f . left g = left (f . g)
 "compose/right" forall f g .
-                right f >>> right g = right (f >>> g)
+                right f . right g = right (f . g)
  #-}
 
 instance ArrowChoice (->) where