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16 lines
311 B
Plaintext
16 lines
311 B
Plaintext
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data Nat : Type where
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Z : Nat
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S : Nat -> Nat
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AdderTy : Nat -> Type
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AdderTy Z = Nat
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AdderTy (S $k) = Nat -> AdderTy k
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plus : Nat -> Nat -> Nat
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plus Z $y = y
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plus (S $k) $y = S (plus k y)
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adder : (i : Nat) -> (acc : Nat) -> AdderTy i
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adder Z $acc = acc
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adder (S $k) $acc = \x => adder k (plus x acc)
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