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17 lines
508 B
Idris
17 lines
508 B
Idris
bar : (n : Nat) -> (m : Nat) -> n = m -> Nat
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bar (S m) (S m) (Refl {x = S m}) = m
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data Baz : Int -> Type where
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AddThings : (x : Int) -> (y : Int) -> Baz (x + y)
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addBaz : (x : Int) -> Baz x -> Int
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addBaz (x + y) (AddThings x y) = x + y
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-- Not allowed in Idris 2, we use unification rather than matching!
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-- addBaz2 : (x : Int) -> Baz x -> Int
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-- addBaz2 (_ + _) (AddThings x y) = x + y
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-- Also not allowed in Idris 2!
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-- addBaz3 : (x : Int) -> Baz x -> Int
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-- addBaz3 (x + y) (AddThings _ _) = x + y
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