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T4179.hs:26:16:
Could not deduce (DoC (x (A2 (FCon x) -> A3 (FCon x))))
arising from a use of `op'
from the context (Functor x, DoC (FCon x))
bound by the type signature for
fCon :: (Functor x, DoC (FCon x)) =>
Con x -> A2 (FCon x) -> A3 (FCon x)
at T4179.hs:26:1-17
Possible fix:
add (DoC (x (A2 (FCon x) -> A3 (FCon x)))) to the context of
the type signature for
fCon :: (Functor x, DoC (FCon x)) =>
Con x -> A2 (FCon x) -> A3 (FCon x)
or add an instance declaration for
(DoC (x (A2 (FCon x) -> A3 (FCon x))))
In the first argument of `foldDoC', namely `op'
In the expression: foldDoC op
In an equation for `fCon': fCon = foldDoC op
T4179.hs:26:16:
Could not deduce (A2 (x (A2 (FCon x) -> A3 (FCon x)))
~
A2 (FCon x))
from the context (Functor x, DoC (FCon x))
bound by the type signature for
fCon :: (Functor x, DoC (FCon x)) =>
Con x -> A2 (FCon x) -> A3 (FCon x)
at T4179.hs:26:1-17
NB: `A2' is a type function, and may not be injective
Expected type: A2 (FCon x) -> A3 (FCon x)
Actual type: A2 (x (A2 (FCon x) -> A3 (FCon x)))
-> A3 (x (A2 (FCon x) -> A3 (FCon x)))
Expected type: x (A2 (FCon x) -> A3 (FCon x))
-> A2 (FCon x)
-> A3 (FCon x)
Actual type: x (A2 (FCon x) -> A3 (FCon x))
-> A2 (x (A2 (FCon x) -> A3 (FCon x)))
-> A3 (x (A2 (FCon x) -> A3 (FCon x)))
In the first argument of `foldDoC', namely `op'
In the expression: foldDoC op
T4179.hs:26:16:
Could not deduce (A3 (x (A2 (FCon x) -> A3 (FCon x)))
~
A3 (FCon x))
from the context (Functor x, DoC (FCon x))
bound by the type signature for
fCon :: (Functor x, DoC (FCon x)) =>
Con x -> A2 (FCon x) -> A3 (FCon x)
at T4179.hs:26:1-17
NB: `A3' is a type function, and may not be injective
Expected type: A2 (FCon x) -> A3 (FCon x)
Actual type: A2 (x (A2 (FCon x) -> A3 (FCon x)))
-> A3 (x (A2 (FCon x) -> A3 (FCon x)))
Expected type: x (A2 (FCon x) -> A3 (FCon x))
-> A2 (FCon x)
-> A3 (FCon x)
Actual type: x (A2 (FCon x) -> A3 (FCon x))
-> A2 (x (A2 (FCon x) -> A3 (FCon x)))
-> A3 (x (A2 (FCon x) -> A3 (FCon x)))
In the first argument of `foldDoC', namely `op'
In the expression: foldDoC op
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