category-extras-0.53.6: Various modules and constructs inspired by category theory Contents Index

Control.Morphism.Destroy Portability non-portable (rank-2 polymorphism) Stability experimental Maintainer Edward Kmett <ekmett@gmail.com>

Description

Synopsis

hdestroy :: (HFunctor f, Functor c) => (forall g. HCoalgebra f g -> g :~> c) -> FixH f :~> c kdestroy :: HFunctor f => (forall x. HCoalgebra f x -> x :~> Ran g h) -> FixH f :~> Ran g h

Documentation

hdestroy :: (HFunctor f, Functor c) => (forall g. HCoalgebra f g -> g :~> c) -> FixH f :~> c

forall h g . hdestroy g . hana h = g h cannot be realized as a RULE.

kdestroy :: HFunctor f => (forall x. HCoalgebra f x -> x :~> Ran g h) -> FixH f :~> Ran g h

forall h g . kdestroy g . kana h = g (cointerpreterCoalgebra h) cannot be realized as a RULE

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