Greetings,

I am going through the Tutorial using ghc on a redhat 8.0 system.
Everything works fine untill I get to the map function:

Prelude>  map toUpper "hello world"

<interactive>:1: Variable not in scope: `toUpper'
Prelude>

Can anyone tel me what is or might be going on?

Thanks.

Sincerely,

Mark

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