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12 lines
326 B
Plaintext
12 lines
326 B
Plaintext
definition module GenHylo
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import StdGeneric, GenMap
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:: Fix f = In (f .(Fix f))
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Out :: !u:(Fix v:a) -> v:(a w:(Fix v:a)), [u <= w]
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hylo :: ((.f .b) -> .b) (.a -> (.f .a)) -> (.a -> .b) | gMap{|*->*|} f
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cata :: (u:(f .a) -> .a) -> (Fix u:f) -> .a | gMap{|*->*|} f
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ana :: (.a -> u:(f .a)) -> .a -> (Fix u:f) | gMap{|*->*|} f
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