haskell functor - SERP Analysis

https://www.haskell.org/haskellwiki/functor

https://hackage.haskell.org/package/base/docs/Data-Functor.html

https://learnyouahaskell.com/functors-applicative-functors-and-monoids

https://serokell.io/blog/whats-that-typeclass-functor

https://stackoverflow.com/questions/13134825/how-do-functors-work-in-haskell

https://mmhaskell.com/monads/functors

https://en.wikipedia.org/wiki/Functor_(functional_programming)

https://www.reddit.com/r/haskell/comments/12emckv/myunderstanding_of_functor/

https://www.tutorialspoint.com/haskell/haskell_functor.htm

https://softwareengineering.stackexchange.com/questions/421566/definition-of-functor-haskell-vs-c

https://tgdwyer.github.io/haskell3/

https://hackage.haskell.org/package/base/docs/Data-Functor-Identity.html

https://en.wikibooks.org/wiki/Haskell/The_Functor_class

https://eli.thegreenplace.net/2018/haskell-functions-as-functors-applicatives-and-monads/

https://gist.github.com/52d5483f375d60ce3ad8

https://www.youtube.com/watch?v=4tXna2Al3Ps

https://tweag.io/blog/2020-01-16-data-vs-control/

https://hackage.haskell.org/package/base/docs/Data-Functor-Contravariant.html

http://www.zvon.org/other/haskell/Outputprelude/Functor_c.html

https://hpfp.readthedocs.io/en/latest/16_-_functor/notes.html

https://news.ycombinator.com/item?id=21442706

https://www.cs.umd.edu/class/spring2019/cmsc388F/lectures/functors.html

https://www.cs.princeton.edu/~dpw/cos441-11/notes/slides09-functors.pdf

https://www.quora.com/What-is-a-functor-in-Haskell-Is-it-the-same-as-an-applicative-Whats-the-relationship-between-them-Why-would-you-use-one-over-the-other

https://cstml.github.io/2021/05/03/haskell-functor.html

https://www.haskellforall.com/2012/09/the-functor-design-pattern.html

https://dmitrytsepelev.dev/haskell-adventures-functors

https://hackage.haskell.org/package/base/docs/Data-Functor-Compose.html

https://medium.com/%40delcinraj/functors-and-applicatives-deep-dive-in-haskell-with-examples-ef845cf00e8b

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https://livebook.manning.com/book/get-programming-with-haskell/chapter-27

https://www.ohca.ml/2020/06/notes-learn-you-haskell-functors-and.html

https://priyankamondal-11139.medium.com/haskell-functors-7a14eabb53de?source=follow_footer---------2----------------------------

https://www.schoolofhaskell.com/school/advanced-haskell/functors-applicative-functors-and-monads

https://blog.ajkavanagh.me/2020/12/1-all-about-haskell-functors/

https://hackage.haskell.org/package/base-4.8.2.0/docs/Data-Functor.html

https://www.youtube.com/watch?v=Jsmt4uaL1O8

https://haskell.hpmeducation.com/functors-applicatives-and-monads/functors

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https://discourse.haskell.org/t/creating-functor-class/8514

https://en.wikibooks.org/wiki/Haskell/Prologue:_IO,_an_applicative_functor

https://haskell.pesquisa.ufabc.edu.br/haskell/09.functors/

https://hackage.haskell.org/package/semigroupoids/docs/Data-Functor-Apply.html

https://www.youtube.com/watch?v=OUNj6BN5ZPY

https://lyah.haskell.fr/foncteurs-foncteurs-applicatifs-et-monoides

https://mmhaskell.com/monads/applicatives

https://hackage.haskell.org/package/base/docs/Data-Functor-Product.html

https://www.numberanalytics.com/blog/denotational-semantics-category-theory-guide

https://www.wesleyanargus.com/HomePages/u30NPG/2361949/programminginhaskell.pdf

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https://hoogle.haskell.org/?hoogle=Functor

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https://qiita.com/Izawa_/items/765c07ce6c6c999175b7

https://hackage.haskell.org/package/semigroupoids/docs/Data-Functor-Bind.html

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https://www.docswell.com/s/lagenorhynque/Z6VX6E-functional-language-tasting-haskell-scala-clojure-elixir

https://fortee.jp/2025fp-matsuri/proposal/a8cd6d02-37c5-4009-90a4-9495c3189420

https://hackage.haskell.org/package/base/docs/Data-Functor-Classes.html

https://ithelp.ithome.com.tw/articles/10252104

https://discourse.haskell.org/t/why-data-set-containers-doesnt-have-functor-and-monad-instance/832

https://dev.classmethod.jp/articles/fp-matsuri-2025-report/

https://hackage.haskell.org/package/invariant/docs/Data-Functor-Invariant.html

https://hackage.haskell.org/package/adjunctions/docs/Data-Functor-Adjunction.html

https://en.wikipedia.org/wiki/Asterisk

https://zenn.dev/siiibo_tech/articles/adopting-fp-languages

https://hackage.haskell.org/package/base/docs/Control-Applicative.html

https://hackage.haskell.org/package/kan-extensions/docs/Data-Functor-Day.html

https://discourse.haskell.org/t/breaking-only-the-second-functor-law/5162

https://discourse.haskell.org/t/cont-data-set-no-functor-monad-instance/9098

https://hackage.haskell.org/package/free-functors

https://www.haskell.org/haskellwiki/Category_theory/Functor

https://hackage.haskell.org/package/universum-0.5/docs/Functor.html

https://hackage.haskell.org/package/base-4.7.0.2/docs/Data-Functor.html

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https://hackage.haskell.org/package/base-4.2.0.0/docs/Data-Functor.html

https://hackage.haskell.org/package/n-ary-functor

https://downloads.haskell.org/ghc/7.10.1/docs/html/libraries/base-4.8.0.0/src/Data-Functor.html

https://www.haskell.org/haskellwiki/applicative_functor

https://hackage.haskell.org/package/base/docs/Data-Foldable.html

https://www.haskell.org/haskellwiki/typeclassopedia