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trait NaturalTransformation[-F[_], +G[_]] extends AnyRef

A universally quantified function, usually written as F ~> G, for symmetry with A => B.

Can be used to encode first-class functor transformations in the same way functions encode first-class concrete value morphisms; for example, sequence from scalaz.Traverse and cosequence from scalaz.Distributive give rise to ([a]T[A[a]]) ~> ([a]A[T[a]]), for varying A and T constraints.

Self Type
NaturalTransformation[F, G]
Source
NaturalTransformation.scala
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Abstract Value Members

  1. abstract def apply[A](fa: F[A]): G[A]

Concrete Value Members

  1. final def !=(arg0: Any): Boolean
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  2. final def ##(): Int
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  3. final def ==(arg0: Any): Boolean
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  4. def andThen[H[_]](f: ~>[G, H]): ~>[F, H]
  5. final def asInstanceOf[T0]: T0
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  6. def clone(): AnyRef
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  7. def compose[E[_]](f: ~>[E, F]): ~>[E, G]
  8. final def eq(arg0: AnyRef): Boolean
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  9. def equals(arg0: Any): Boolean
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  10. def finalize(): Unit
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  11. final def getClass(): Class[_]
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  12. def hashCode(): Int
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  13. final def isInstanceOf[T0]: Boolean
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  14. final def ne(arg0: AnyRef): Boolean
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  15. final def notify(): Unit
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  16. final def notifyAll(): Unit
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  17. final def synchronized[T0](arg0: ⇒ T0): T0
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  18. def toString(): String
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  19. final def wait(): Unit
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  20. final def wait(arg0: Long, arg1: Int): Unit
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  21. final def wait(arg0: Long): Unit
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