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I'm a trying to get into Haskell. The Function itself (without pattern matching) works, but with the pattern matching I get this error:

error: parse error on input ‘->’
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23 | print_is_even ∷ Bool -> String
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print_is_even ∷ Bool -> String
print_is_even x = if x==True then "Is even" else "Not even"
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    Side note: x==True is redundant; you can replace it with x. Commented Apr 1, 2020 at 13:42

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9

Either turn on the UnicodeSyntax extension, or use :: instead of ∷.

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