2 tcfail044.hs:12: The type
4 cannot be used as an instance type
6 tcfail044.hs:5: The type
8 cannot be used as an instance type
10 tcfail044.hs:20: No instance for: `PrelBase.Num (PrelBase.Float
12 arising from use of `PrelBase.+' at tcfail044.hs:20
15 Compilation had errors