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-rw-r--r--libraries/base/Data/Either.hs1
1 files changed, 0 insertions, 1 deletions
diff --git a/libraries/base/Data/Either.hs b/libraries/base/Data/Either.hs
index d727e5219d..50e95824c8 100644
--- a/libraries/base/Data/Either.hs
+++ b/libraries/base/Data/Either.hs
@@ -134,7 +134,6 @@ instance Applicative (Either e) where
Right f <*> r = fmap f r
instance Monad (Either e) where
- return = Right
Left l >>= _ = Left l
Right r >>= k = k r