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GivenForallLoop.hs:8:11: error: [GHC-25897]
• Could not deduce ‘a ~ b’
from the context: a ~ (forall b1. F a b1)
bound by the type signature for:
loopy :: forall a b. (a ~ (forall b1. F a b1)) => a -> b
at GivenForallLoop.hs:7:1-42
‘a’ is a rigid type variable bound by
the type signature for:
loopy :: forall a b. (a ~ (forall b1. F a b1)) => a -> b
at GivenForallLoop.hs:7:1-42
‘b’ is a rigid type variable bound by
the type signature for:
loopy :: forall a b. (a ~ (forall b1. F a b1)) => a -> b
at GivenForallLoop.hs:7:1-42
• In the expression: x
In an equation for ‘loopy’: loopy x = x
• Relevant bindings include
x :: a (bound at GivenForallLoop.hs:8:7)
loopy :: a -> b (bound at GivenForallLoop.hs:8:1)
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