tcfail073.hs:3:
Duplicate or overlapping instance declarations
- for `Eq (a, b)' at PrelTup.hi:10 and tcfail073.hs:8
+ for `Eq (a, b)' at PrelTup.hi:5 and tcfail073.hs:8
tcfail073.hs:8:
Could not deduce `Eq a'
Probable cause: missing `Eq a' in instance declaration context
When checking the methods of an instance declaration
-
-
Compilation had errors