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9 lines
246 B
Idris
9 lines
246 B
Idris
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module FuncImpl
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public export
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interface Monad m => FooBar m where
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Foo : {A : Type} -> A -> m A -> Type
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bar : {A : Type} -> (ma : m A) -> m (DPair A (\ a => Foo a ma))
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foobar : {A : Type} -> (ma : m A) -> map DPair.fst (bar ma) = ma
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