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T10285.hs:8:17: error:
• Could not deduce: Coercible a b arising from a use of ‘coerce’
from the context: Coercible (N a) (N b)
bound by a pattern with constructor:
Coercion :: forall {k} (a :: k) (b :: k).
Coercible a b =>
Coercion a b,
in an equation for ‘oops’
at T10285.hs:8:6-13
‘a’ is a rigid type variable bound by
the type signature for:
oops :: forall a b. Coercion (N a) (N b) -> a -> b
at T10285.hs:7:1-38
‘b’ is a rigid type variable bound by
the type signature for:
oops :: forall a b. Coercion (N a) (N b) -> a -> b
at T10285.hs:7:1-38
• In the expression: coerce
In an equation for ‘oops’: oops Coercion = coerce
• Relevant bindings include
oops :: Coercion (N a) (N b) -> a -> b (bound at T10285.hs:8:1)
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