Understanding profunctorsProfunctors are bifunctors that are contravariant in their first type argument and covariant in their second one.#type-classes#profunctor#contravariance#covariance#functor#bifunctor·typeclasses.com·Aug 11, 2019Understanding profunctors
Profunctor Optics paper#via-brandon-williams#via-stephen-celis#paper#lenses#prisms#dual#profunctor#category-theory·cs.ox.ac.uk·Jun 18, 2019Profunctor Optics paper
