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T3950.hs:16:13: error: [GHC-83865]
• Couldn't match type: Id p0 x0
with: Id p
Expected: w (Id p)
Actual: Sealed (Id p0 x0)
• In the first argument of ‘Just’, namely ‘rp'’
In the expression: Just rp'
In an equation for ‘rp’:
rp _
= Just rp'
where
rp' :: Sealed (Id p x)
rp' = undefined
• Relevant bindings include
rp :: Bool -> Maybe (w (Id p)) (bound at T3950.hs:16:1)
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