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10 lines
231 B
Idris
10 lines
231 B
Idris
%default partial
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data Vect : Nat -> Type -> Type where
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Nil : Vect Z a
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(::) : a -> Vect k a -> Vect (S k) a
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zip : Vect n a -> Vect n b -> Vect n (a, b)
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zip [] [] impossible
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zip (x :: xs) (y :: ys) = (x, y) :: zip xs ys
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