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foldlS _f _nil list | |
(\f z l -> | |
case l of | |
Nil -> z | |
Cons x xs -> | |
case f z x of | |
0 -> foldlS f 0 xs | |
r -> foldlS f r xs) | |
_f | |
_nil | |
list | |
(\z l -> | |
case l of | |
Nil -> z | |
Cons x xs -> | |
case _f z x of | |
0 -> foldlS _f 0 xs | |
r -> foldlS _f r xs) | |
_nil | |
list | |
(\l -> | |
case l of | |
Nil -> _nil | |
Cons x xs -> | |
case _f _nil x of | |
0 -> foldlS _f 0 xs | |
r -> foldlS _f r xs) | |
list | |
case list of | |
Nil -> _nil | |
Cons x xs -> | |
case _f _nil x of | |
0 -> foldlS _f 0 xs | |
r -> foldlS _f r xs | |
case Cons True (Cons False Nil) of | |
Nil -> _nil | |
Cons x xs -> | |
case _f _nil x of | |
0 -> foldlS _f 0 xs | |
r -> foldlS _f r xs | |
case _f _nil True of | |
0 -> foldlS _f 0 (Cons False Nil) | |
r -> foldlS _f r (Cons False Nil) |
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