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The code I am using keeps popping up with this error of not being able to find "change", how can I fix this problem? Is there something I need to download for it to work? Also, if needed, do I need to fix any other component of this for it to run smoothly? I'm new to Haskell!

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    Enter your code into a .hs file and load it into GHCi. Commented Oct 10, 2016 at 17:48
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    Possible duplicate of Haskell error parse error on input `=' Commented Oct 10, 2016 at 17:48
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    please don't include pictures of code but text instead which can be read better and copy&pasted... Commented Oct 10, 2016 at 18:15
  • You can't just paste the contents of a Haskell source file into WinGHCI and hope it will work. You'll need to put that code into a file and then load the file with GHCi using commands like :load and :reload . It's possible to define multi-line things in GHCi but the syntax is not the same as a file. Commented Oct 15, 2016 at 4:30
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