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FailDueToGivenOverlapping.hs:27:9:
Overlapping instances for E [t0] arising from a use of ‛eop’
Matching givens (or their superclasses):
(E [Int])
bound by the type signature for bar :: E [Int] => () -> ()
at FailDueToGivenOverlapping.hs:26:8-26
Matching instances:
instance E [a] -- Defined at FailDueToGivenOverlapping.hs:21:10
(The choice depends on the instantiation of ‛t0’)
In the expression: eop [undefined]
In an equation for ‛bar’: bar _ = eop [undefined]
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