Fix doc typos in libraries/base

7 files changed, 9 insertions, 9 deletions

diff --git a/libraries/base/Control/Concurrent/MVar.hs b/libraries/base/Control/Concurrent/MVar.hs
index f78ad82d79..999c97f1b5 100644
--- a/libraries/base/Control/Concurrent/MVar.hs
+++ b/libraries/base/Control/Concurrent/MVar.hs
@@ -37,7 +37,7 @@
 -- than 'GHC.Conc.STM'.  They are appropriate for building synchronization
 -- primitives and performing simple interthread communication; however
 -- they are very simple and susceptible to race conditions, deadlocks or
--- uncaught exceptions.  Do not use them if you need perform larger
+-- uncaught exceptions.  Do not use them if you need to perform larger
 -- atomic operations such as reading from multiple variables: use 'GHC.Conc.STM'
 -- instead.
 --
diff --git a/libraries/base/Control/Exception/Base.hs b/libraries/base/Control/Exception/Base.hs
index 06ae041624..7cb720e885 100644
--- a/libraries/base/Control/Exception/Base.hs
+++ b/libraries/base/Control/Exception/Base.hs
@@ -223,7 +223,7 @@ onException io what = io `catch` \e -> do _ <- what
 -- handle.  Similarly, closing a socket (from \"network\" package) is also
 -- uninterruptible under similar conditions.  An example of an interruptible
 -- action is 'killThread'.  Completion of interruptible release actions can be
--- ensured by wrapping them in in 'uninterruptibleMask_', but this risks making
+-- ensured by wrapping them in 'uninterruptibleMask_', but this risks making
 -- the program non-responsive to @Control-C@, or timeouts.  Another option is to
 -- run the release action asynchronously in its own thread:
 --
diff --git a/libraries/base/Control/Monad.hs b/libraries/base/Control/Monad.hs
index d2d0e29e43..b3dee03703 100644
--- a/libraries/base/Control/Monad.hs
+++ b/libraries/base/Control/Monad.hs
@@ -101,11 +101,11 @@ import GHC.Num  ( (-) )
 --
 -- ==== __Examples__
 --
--- Common uses of 'guard' include conditionally signaling an error in
+-- Common uses of 'guard' include conditionally signalling an error in
 -- an error monad and conditionally rejecting the current choice in an
 -- 'Alternative'-based parser.
 --
--- As an example of signaling an error in the error monad 'Maybe',
+-- As an example of signalling an error in the error monad 'Maybe',
 -- consider a safe division function @safeDiv x y@ that returns
 -- 'Nothing' when the denominator @y@ is zero and @'Just' (x \`div\`
 -- y)@ otherwise. For example:
diff --git a/libraries/base/Data/Complex.hs b/libraries/base/Data/Complex.hs
index 734b2fabf4..4d9d2d7981 100644
--- a/libraries/base/Data/Complex.hs
+++ b/libraries/base/Data/Complex.hs
@@ -104,13 +104,13 @@ cis theta        =  cos theta :+ sin theta
 
 -- | The function 'polar' takes a complex number and
 -- returns a (magnitude, phase) pair in canonical form:
--- the magnitude is nonnegative, and the phase in the range @(-'pi', 'pi']@;
+-- the magnitude is non-negative, and the phase in the range @(-'pi', 'pi']@;
 -- if the magnitude is zero, then so is the phase.
 {-# SPECIALISE polar :: Complex Double -> (Double,Double) #-}
 polar            :: (RealFloat a) => Complex a -> (a,a)
 polar z          =  (magnitude z, phase z)
 
--- | The nonnegative magnitude of a complex number.
+-- | The non-negative magnitude of a complex number.
 {-# SPECIALISE magnitude :: Complex Double -> Double #-}
 magnitude :: (RealFloat a) => Complex a -> a
 magnitude (x:+y) =  scaleFloat k
diff --git a/libraries/base/Data/List.hs b/libraries/base/Data/List.hs
index a81c743357..6f1e26aa68 100644
--- a/libraries/base/Data/List.hs
+++ b/libraries/base/Data/List.hs
@@ -124,7 +124,7 @@ module Data.List
    , partition
 
    -- * Indexing lists
-   -- | These functions treat a list @xs@ as a indexed collection,
+   -- | These functions treat a list @xs@ as an indexed collection,
    -- with indices ranging from 0 to @'length' xs - 1@.
 
    , (!?)
diff --git a/libraries/base/Data/OldList.hs b/libraries/base/Data/OldList.hs
index 8f00fd754a..cda19cb650 100644
--- a/libraries/base/Data/OldList.hs
+++ b/libraries/base/Data/OldList.hs
@@ -124,7 +124,7 @@ module Data.OldList
    , partition
 
    -- * Indexing lists
-   -- | These functions treat a list @xs@ as a indexed collection,
+   -- | These functions treat a list @xs@ as an indexed collection,
    -- with indices ranging from 0 to @'length' xs - 1@.
 
    , (!?)
diff --git a/libraries/base/Text/Read/Lex.hs b/libraries/base/Text/Read/Lex.hs
index 3b8f9ba399..03d22228bb 100644
--- a/libraries/base/Text/Read/Lex.hs
+++ b/libraries/base/Text/Read/Lex.hs
@@ -112,7 +112,7 @@ numberToFixed _ _ = Nothing
 -- space problems in #5688
 -- Ways this is conservative:
 -- * the floatRange is in base 2, but we pretend it is in base 10
--- * we pad the floateRange a bit, just in case it is very small
+-- * we pad the floatRange a bit, just in case it is very small
 --   and we would otherwise hit an edge case
 -- * We only worry about numbers that have an exponent. If they don't
 --   have an exponent then the Rational won't be much larger than the