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T5051.hs:11:11:
Overlapping instances for Eq [a] arising from a use of ‛>=’
Matching instances:
instance Eq a => Eq [a] -- Defined in ‛GHC.Classes’
instance [overlap ok] Eq [T] -- Defined at T5051.hs:8:10
(The choice depends on the instantiation of ‛a’
To pick the first instance above, use -XIncoherentInstances
when compiling the other instance declarations)
In the expression: x >= x
In an equation for ‛foo’: foo x = x >= x
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