Fix broken links and drop non-existing resources 2 (#680)

Author: lemastero

AbstractAlgebra.md

@@ -64,7 +64,7 @@ def combineAllOption(as: TraversableOnce[A]): Option[A]
 * Examples how to define alternative Semigroup instances [for Option, Int with *](https://github.com/lemastero/learn_scala_cats/blob/master/src/main/scala/monoid/AlternativeMonoidInstances.scala) and [usage](https://github.com/lemastero/learn_scala_cats/blob/master/src/test/scala/monoid/AlternativeMonoidInstancesSpec.scala).
 Examples for usage of derived methods and combine [(src)](https://github.com/lemastero/learn_scala_cats/blob/master/src/test/scala/semigroup/SemigroupExamplesSpec.scala)  
 
-* Implementations: [Cats](https://github.com/typelevel/cats/blob/master/kernel/src/main/scala/cats/kernel/Semigroup.scala) [Scalaz 7](https://github.com/scalaz/scalaz/blob/series/7.3.x/core/src/main/scala/scalaz/Semigroup.scala), [Scalaz 8](https://github.com/scalaz/scalaz/blob/series/8.0.x/base/shared/src/main/scala/scalaz/tc/semigroup.scala), [twitter/algebird](https://github.com/twitter/algebird/blob/master/algebird-core/src/main/scala/com/twitter/algebird/Semigroup.scala), [zio-prelude](https://github.com/zio/zio-prelude/blob/master/src/main/scala/zio/prelude/Associative.scala), [Haskell](http://hackage.haskell.org/package/base/docs/Data-Semigroup.html), [Racket algebraic](https://docs.racket-lang.org/algebraic/class_base.html#%28part._class~3abase~3asemigroup%29), [Java](https://github.com/functionaljava/functionaljava/blob/series/5.x/core/src/main/java/fj/Semigroup.java)
+* Implementations: [Cats](https://github.com/typelevel/cats/blob/master/kernel/src/main/scala/cats/kernel/Semigroup.scala) [Scalaz 7](https://github.com/scalaz/scalaz/blob/series/7.3.x/core/src/main/scala/scalaz/Semigroup.scala), [Scalaz 8](https://github.com/scalaz/scalaz/blob/series/8.0.x/base/shared/src/main/scala/scalaz/tc/semigroup.scala), [twitter/algebird](https://github.com/twitter/algebird/blob/master/algebird-core/src/main/scala/com/twitter/algebird/Semigroup.scala), [zio-prelude](https://github.com/zio/zio-prelude/blob/series/2.x/core/shared/src/main/scala/zio/prelude/Associative.scala), [Haskell](http://hackage.haskell.org/package/base/docs/Data-Semigroup.html), [Racket algebraic](https://docs.racket-lang.org/algebraic/class_base.html#%28part._class~3abase~3asemigroup%29), [Java](https://github.com/functionaljava/functionaljava/blob/series/5.x/core/src/main/java/fj/Semigroup.java)
 
 * Resources:
    * herding cats - Semigroup [(blog post)](http://eed3si9n.com/herding-cats/Semigroup.html)

BasicAbstractions.md

@@ -23,7 +23,7 @@ trait Functor[F[_]] {
 ```
 
 * Functor Implementations:  
-  Scala: [Scalaz 7](https://github.com/scalaz/scalaz/blob/series/7.3.x/core/src/main/scala/scalaz/Functor.scala), [Scalaz 8](https://github.com/scalaz/scalaz/blob/series/8.0.x/base/shared/src/main/scala/scalaz/tc/functor.scala), [Cats](https://github.com/typelevel/cats/blob/master/core/src/main/scala/cats/Functor.scala), [zio-prelude](https://github.com/zio/zio-prelude/blob/master/src/main/scala/zio/prelude/Covariant.scala),  
+  Scala: [Scalaz 7](https://github.com/scalaz/scalaz/blob/series/7.3.x/core/src/main/scala/scalaz/Functor.scala), [Scalaz 8](https://github.com/scalaz/scalaz/blob/series/8.0.x/base/shared/src/main/scala/scalaz/tc/functor.scala), [Cats](https://github.com/typelevel/cats/blob/master/core/src/main/scala/cats/Functor.scala), [zio-prelude](https://github.com/zio/zio-prelude/blob/series/2.x/core/shared/src/main/scala/zio/prelude/Covariant.scala),  
   [Idris](https://github.com/idris-lang/Idris-dev/blob/master/libs/prelude/Prelude/Functor.idr), [Purescript](https://github.com/purescript/purescript-prelude/blob/master/src/Data/Functor.purs), [Haskell base](http://hackage.haskell.org/package/base/docs/Data-Functor.html), [Haskell data-category](http://hackage.haskell.org/package/data-category/docs/Data-Category-Functor.html#g:2), [Racket algebraic](https://docs.racket-lang.org/algebraic/class_base.html#%28part._class~3abase~3afunctor%29), [Racket functional](https://docs.racket-lang.org/functional/interfaces.html#%28part._functors%29), [nLab](https://ncatlab.org/nlab/show/functor), [Java Mojang/DataFixerUpper](https://github.com/Mojang/DataFixerUpper/blob/master/src/main/java/com/mojang/datafixers/kinds/Functor.java)
 * Encoding close to mathematics: [vpatryshev/Categories](https://github.com/vpatryshev/Categories/blob/master/src/main/scala/math/cat/Functor.scala)
 * Formalization in proof assistants: [statebox/idris-ct](https://github.com/statebox/idris-ct/blob/master/src/Basic/Functor.lidr), [UniMath](https://github.com/UniMath/UniMath/blob/master/UniMath/CategoryTheory/Core/Functors.v), [HoTT Book](https://github.com/HoTT/HoTT/blob/master/theories/Categories/Functor/Core.v), [cubicaltt](https://github.com/mortberg/cubicaltt/blob/master/examples/category.ctt)
@@ -310,7 +310,7 @@ trait Monad[F[_]] extends Apply[F] {
 ```
 
 * Implementations:  
-  [zio-prelude AssociativeFlatten](https://github.com/zio/zio-prelude/blob/master/src/main/scala/zio/prelude/AssociativeFlatten.scala)  
+  [zio-prelude AssociativeFlatten](https://github.com/zio/zio-prelude/blob/series/2.x/core/shared/src/main/scala/zio/prelude/AssociativeFlatten.scala)  
   [Cats FlatMap](https://github.com/typelevel/cats/blob/master/core/src/main/scala/cats/FlatMap.scala), [Scalaz 7 Bind](https://github.com/scalaz/scalaz/blob/series/7.3.x/core/src/main/scala/scalaz/Bind.scala), [Scalaz 8 Bind](https://github.com/scalaz/scalaz/blob/series/8.0.x/base/shared/src/main/scala/scalaz/tc/bind.scala)  
   Monad: [Cats](https://github.com/typelevel/cats/blob/master/core/src/main/scala/cats/Monad.scala), [Scalaz 7](https://github.com/scalaz/scalaz/blob/series/7.3.x/core/src/main/scala/scalaz/Monad.scala), [Scalaz 8](https://github.com/scalaz/scalaz/blob/series/8.0.x/base/shared/src/main/scala/scalaz/tc/monad.scala),  
   [Haskell](https://hackage.haskell.org/package/base-4.16.0.0/docs/Control-Monad.html#t:Monad), [Idris](https://github.com/idris-lang/Idris-dev/blob/master/libs/prelude/Prelude/Monad.idr), [Purescript](https://pursuit.purescript.org/packages/purescript-prelude/docs/Control.Monad), [Racket algebraic](https://docs.racket-lang.org/algebraic/class_base.html#%28part._class~3abase~3amonad%29), [Racket functional](https://docs.racket-lang.org/functional/interfaces.html#%28part._monads%29)

ComputationalTrinitarianism.md

@@ -38,7 +38,6 @@
 * Basic Bicategories - Tom Leinster [(arXiv)](https://arxiv.org/abs/math/9810017)
 * The periodic table of n-categories - Eugenia Cheng [(video)](https://www.youtube.com/watch?v=lJGUMlgCxz8)
 * Associative n-categories - Christoph Dorn [(arXiv:1812.10586)](https://arxiv.org/pdf/1812.10586.pdf)
-* Strictly associative and unital higher category theory - Jamie Vicary [(slides)](https://www.cs.bham.ac.uk/~axj/files/mgs-xmas-2018-Jamie.pdf)
 * [kerodon.net](https://kerodon.net/) Part I - Higher category theory
 * YouTube playlists:
    - [2-Categories Bicategories](https://www.youtube.com/playlist?list=PLmB9zOCKwySGiQu19ScW98EEduJswr1dk)
@@ -250,7 +249,7 @@ SCALING DOT TO SCALA - SOUNDNESS - Martin Odersky [(blog post)](https://www.scal
 * Fast Computations on Ordered Nominal Sets - David Venhoek, Joshua Moerman, Jurriaan Rot [(arXiv:1902.08414)](https://arxiv.org/abs/0805.0845)
 * Automata theory in nominal sets - Mikołaj Bojańczyk, Bartek Klin, Sławomir Lasota [(arXiv:1402.0897)](https://arxiv.org/abs/1402.0897)
 * Algebraic Theories over Nominal Sets - Alexander Kurz, Daniela Petrişan, Jiří Velebil [(arXiv:1006.3027)](https://arxiv.org/abs/1006.3027)
-* Atompress [blog](http://atoms.mimuw.edu.pl/), [book](http://atoms.mimuw.edu.pl/wp-content/uploads/2014/03/main.pdf), [WIP book](https://www.mimuw.edu.pl/~bojan/paper/atom-book)
+* [Atom book](https://www.mimuw.edu.pl/~bojan/paper/atom-book)
 * Nominal Sets and Their Applications [course - lectures, exercises](https://www.cl.cam.ac.uk/teaching/1213/L23/materials.html)
 * FoPSS 2019 - Nominal Techniques [(slides from talks)](https://www.mimuw.edu.pl/~fopss19/programme.html)
 * [SPLV 2020](http://www.macs.hw.ac.uk/splv/splv20/) - Maribel Fernandez - Nominal rewriting and unification, Jamie Gabbay - Nominal datatypes
@@ -276,7 +275,7 @@ SCALING DOT TO SCALA - SOUNDNESS - Martin Odersky [(blog post)](https://www.scal
 ## [Categorical Algebra](https://ncatlab.org/nlab/show/categorical+algebra)
 
 * Higher Algebra - Jacob Lurie [(pdf)](https://www.math.ias.edu/~lurie/papers/HA.pdf)
-* [Algebraic Operads - Jean-Louis Loday and Bruno Vallette](http://irma.math.unistra.fr/~loday/AO%28JLL-BV%29.html) [(pdf v 0.99)](http://irma.math.unistra.fr/~loday/PAPERS/LodayVallette.pdf)
+* [Algebraic Operads - Jean-Louis Loday and Bruno Vallette](https://www.math.univ-paris13.fr/~vallette/Operads.pdf)
 * Foundations of Algebraic Theories and Higher Dimensional Categories - Soichiro Fujii [(arxiv:1903.07030)](https://arxiv.org/abs/1903.07030)
 * A unified framework for notions of algebraic theory - Soichiro Fujii [(paper)](https://arxiv.org/abs/1904.08541)
 * Bialgebraic Semantics for String Diagrams - Filippo Bonchi, Robin Piedeleu, Pawel Sobocinski, Fabio Zanasi [(arXiv:1906.01519)](https://arxiv.org/abs/1906.01519)
@@ -297,10 +296,9 @@ SCALING DOT TO SCALA - SOUNDNESS - Martin Odersky [(blog post)](https://www.scal
 * Nikolai Kudasov - Building a Telegram Bot in Haskell - λC 2018 [(video playlist)](https://www.youtube.com/watch?v=dfTTgdlsSzo&list=PL7DZ7q3nEWhw0esa7oaAYw3OHqG0Pyuu6&index=2)
 * Alejandro Serrano Mena - A Hands on Tutorial to Generic Programming in Haskell [(video)](https://www.youtube.com/watch?v=R3HWy1NCXMs&list=PL7DZ7q3nEWhygKSFNI4MlTL-draJzhRXb&index=2) 
 * [FP Complete tutorial for libraries](https://haskell.fpcomplete.com/learn#libraries)
-* CIS 552: Advanced Programming (Fall 2017) - Stephanie Weirich [(lecture notes)](https://www.seas.upenn.edu/~cis552/current/schedule.html) [(assignments)](https://www.seas.upenn.edu/~cis552/current/homework.html)
 * CIS 194: Introduction to Haskell (Spring 2013) - Brent Yorgey [(course)](https://www.seas.upenn.edu/~cis194/spring13/lectures.html)
 * [Haskell ITMO course at CTD](https://github.com/jagajaga/FP-Course-ITMO)
-* Haskell from Scratch - [Chris Forno](http://jekor.com/) [@jekor](https://twitter.com/jekor) [(video playlist)](https://www.youtube.com/playlist?list=PLxj9UAX4Em-Ij4TKwKvo-SLp-Zbv-hB4B)
+* Haskell from Scratch - Chris Forno [(video playlist)](https://www.youtube.com/playlist?list=PLxj9UAX4Em-Ij4TKwKvo-SLp-Zbv-hB4B)
 
 ## Haskell [user groups](https://wiki.haskell.org/User_groups), [commmunities](https://wiki.haskell.org/User_groups) videos
 
@@ -321,7 +319,6 @@ SCALING DOT TO SCALA - SOUNDNESS - Martin Odersky [(blog post)](https://www.scal
 * [wiki.haskell.org Research papers](https://wiki.haskell.org/Research_papers)
 * [Haskell papers - Ben Lynn](https://crypto.stanford.edu/~blynn/haskell/papers.html)
 * [A List of Foundational Haskell Papers - Emily Pillmore](https://github.com/cohomolo-gy/haskell-resources)
-* [A Haskell Reading List - Stephen Diehl](http://www.stephendiehl.com/posts/essential_haskell.html)
 * [797 Haskell Papers](https://mitchellwrosen.github.io/haskell-papers/)
 
 ## Podcasts

Contravariant.md

@@ -80,13 +80,12 @@ trait Contravariant[F[_]] {
 }
 ```
 
-* Implementations [Scalaz 7](https://github.com/scalaz/scalaz/blob/series/7.3.x/core/src/main/scala/scalaz/Contravariant.scala), [Scalaz 8](https://github.com/scalaz/scalaz/blob/series/8.0.x/base/shared/src/main/scala/scalaz/tc/contravariant.scala), [Cats](https://github.com/typelevel/cats/blob/master/core/src/main/scala/cats/Contravariant.scala), [zio-prelude](https://github.com/zio/zio-prelude/blob/master/src/main/scala/zio/prelude/Contravariant.scala)
-* [Haskell](http://hackage.haskell.org/package/contravariant/docs/Data-Functor-Contravariant.html), [Purescript](https://pursuit.purescript.org/packages/purescript-contravariant/docs/Data.Functor.Contravariant), [UniMath](https://github.com/UniMath/UniMath/blob/master/UniMath/CategoryTheory/Presheaf.v), [nLab](https://ncatlab.org/nlab/show/contravariant+functor)
-  [Haskell](https://downloads.haskell.org/~ghc/latest/docs/html/libraries/base-4.13.0.0/Data-Functor-Contravariant.html), [Purescript](https://pursuit.purescript.org/packages/purescript-contravariant/docs/Data.Functor.Contravariant)
+* Implementations [Scalaz 7](https://github.com/scalaz/scalaz/blob/series/7.3.x/core/src/main/scala/scalaz/Contravariant.scala), [Scalaz 8](https://github.com/scalaz/scalaz/blob/series/8.0.x/base/shared/src/main/scala/scalaz/tc/contravariant.scala), [Cats](https://github.com/typelevel/cats/blob/master/core/src/main/scala/cats/Contravariant.scala), [zio-prelude](https://github.com/zio/zio-prelude/blob/series/2.x/core/shared/src/main/scala/zio/prelude/Contravariant.scala)
+* [Haskell](https://hackage.haskell.org/package/base/docs/Data-Functor-Contravariant.html), [Purescript](https://pursuit.purescript.org/packages/purescript-contravariant/docs/Data.Functor.Contravariant), [UniMath](https://github.com/UniMath/UniMath/blob/master/UniMath/CategoryTheory/Presheaf.v), [nLab](https://ncatlab.org/nlab/show/contravariant+functor)
 Proofs [UniMath](https://github.com/UniMath/UniMath/blob/master/UniMath/CategoryTheory/Presheaf.v)
 Category Theory [nLab](https://ncatlab.org/nlab/show/contravariant+functor)
 
-* Contravariant laws ([Cats](https://github.com/typelevel/cats/blob/master/laws/src/main/scala/cats/laws/ContravariantLaws.scala), [Scalaz 7](https://github.com/scalaz/scalaz/blob/series/7.3.x/core/src/main/scala/scalaz/Contravariant.scala#L59-L68), [Haskell](http://hackage.haskell.org/package/contravariant/docs/Data-Functor-Contravariant.html)):
+* Contravariant laws ([Cats](https://github.com/typelevel/cats/blob/master/laws/src/main/scala/cats/laws/ContravariantLaws.scala), [Scalaz 7](https://github.com/scalaz/scalaz/blob/series/7.3.x/core/src/main/scala/scalaz/Contravariant.scala#L59-L68), [Haskell](https://hackage.haskell.org/package/base/docs/Data-Functor-Contravariant.html)):
 
 ```mermaid
 flowchart RL
@@ -196,7 +195,7 @@ def deriving3[A1, A2, A3, Z](f: Z => (A1, A2, A3))(implicit a1: F[A1], a2: F[A2]
 
 * Resources
   * (Haskell) Contravariant Functors: The Other Side of the Coin - George Wilson [(video)](https://www.youtube.com/watch?v=IJ_bVVsQhvc)
-  * (Haskell, Category Theory) Discrimination is Wrong: Improving Productivity - Edward Kmett [(video)](https://www.youtube.com/watch?v=cB8DapKQz-I) [slides pdf](http://yowconference.com.au/slides/yowlambdajam2015/Kmett-DiscriminationIsWrong.pdf)
+  * (Haskell, Category Theory) Discrimination is Wrong: Improving Productivity - Edward Kmett [(video)](https://www.youtube.com/watch?v=cB8DapKQz-I)
 
 ### Divisible (Contravariant Applicative)
 
@@ -239,7 +238,7 @@ def leftIdentity[A](fa: F[A]): Boolean = {
 * Resources
   * [Cats PR #2034](https://github.com/typelevel/cats/pull/2034) explaining design choices different that in Haskell, Scalaz
   * (Haskell) Contravariant Functors: The Other Side of the Coin - George Wilson [(video)](https://www.youtube.com/watch?v=IJ_bVVsQhvc)
-  * (Haskell, Category Theory) Discrimination is Wrong: Improving Productivity - Edward Kmett [(video)](https://www.youtube.com/watch?v=cB8DapKQz-I) [slides pdf](http://yowconference.com.au/slides/yowlambdajam2015/Kmett-DiscriminationIsWrong.pdf)
+  * (Haskell, Category Theory) Discrimination is Wrong: Improving Productivity - Edward Kmett [(video)](https://www.youtube.com/watch?v=cB8DapKQz-I)
 
 ## Contravariant Adjuctions & Representable
 

HigherKinded.md

@@ -68,10 +68,10 @@ trait FFunctor[FF[_]] {
 ### Monad morphisms
 
 * Resources
-  * (Haskell) [monad morphisms](http://hackage.haskell.org/package/mmorph/docs/Control-Monad-Morph.html)
-  * (Haskell) [MFunctor](http://hackage.haskell.org/package/mmorph/docs/Control-Monad-Morph.html#t:MFunctor) [used to be in pipes](https://hackage.haskell.org/package/pipes-3.1.0/docs/Control-MFunctor.html)
+  * (Haskell) [monad morphisms](https://hackage.haskell.org/package/mmorph/docs/Control-Monad-Morph.html)
+  * (Haskell) [MFunctor](https://hackage.haskell.org/package/mmorph/docs/Control-Monad-Morph.html#t:MFunctor) [used to be in pipes](https://hackage.haskell.org/package/pipes-3.1.0/docs/Control-MFunctor.html)
   * (Haskell) Q: What is not an MFunctor? [reddit](https://www.reddit.com/r/haskell/comments/2c87m8/q_what_is_not_an_mfunctor/)
-  * (Haskell) [MMonad](http://hackage.haskell.org/package/mmorph-1.1.2/docs/Control-Monad-Morph.html#t:MMonad)
+  * (Haskell) [MMonad](https://hackage.haskell.org/package/mmorph/docs/Control-Monad-Morph.html#t:MMonad)
   * (Haskell) [Github issue with code with MCoyoneda](https://github.com/Gabriel439/Haskell-MMorph-Library/issues/33)
   * (Haskell) [Tutorial - Gabriel Gonzalez](http://hackage.haskell.org/package/mmorp-1.1.2/docs/Control-Monad-Morph.html#g:3)
   * (Haskell) mmorph-1.0.0: Monad morphisms - Gabriel Gonzalez [blog post](http://www.haskellforall.com/2013/03/mmorph-100-monad-morphisms.html)
@@ -156,7 +156,7 @@ In category of Profunctors with Profunctor Product as Bifunctor the Monoid Objec
 
 * Resources
   * lemastero/MonoidalCategories.scala [(Gist)](https://gist.github.com/lemastero/cb50818fc40361ffb309701cffa651c9)
-  * (Haskell, Category Theory) Discrimination is Wrong: Improving Productivity - Edward Kmett [(video)](https://www.youtube.com/watch?v=cB8DapKQz-I&feature=youtu.be&t=373) [slides pdf](http://yowconference.com.au/slides/yowlambdajam2015/Kmett-DiscriminationIsWrong.pdf)
+  * (Haskell, Category Theory) Discrimination is Wrong: Improving Productivity - Edward Kmett [(video)](https://www.youtube.com/watch?v=cB8DapKQz-I&feature=youtu.be&t=373)
   * (Haskell, Category  Theory) Notions of Computation as Monoids (extended version) - Exequiel Rivas, Mauro Jaskelioff [(paper)](http://www.fceia.unr.edu.ar/~mauro/pubs/Notions_of_Computation_as_Monoids_ext.pdf)
   * (Haskell) Monoidal Category [data-category/Data.Category.Monoidal](https://hackage.haskell.org/package/data-category/docs/Data-Category-Monoidal.html), [categories/Control.Category.Monoidal](https://hackage.haskell.org/package/categories/docs/Control-Category-Monoidal.html)
   * (Haskell) [categories Cartesian Monoidal Category](https://hackage.haskell.org/package/categories/docs/Control-Category-Cartesian.html#t:Cartesian)

OtherEncodingsOfCT.md

@@ -69,4 +69,4 @@
 * [Eilenberg–Moore](http://hackage.haskell.org/package/data-category/docs/Data-Category-Dialg.html#t:eilenbergMooreAdj)
 
 # Encoding of Category Theory by Stephen Dhal
-* Monads Made Difficult - Stephen Diehl [(blog post)](http://www.stephendiehl.com/posts/monads.html) Category as first class concept, Functors between them, up to Monads, Kleisli Category, IO and List Monad
+* Monads Made Difficult - Stephen Diehl [(blog post)](https://www.stephendiehl.com/posts/monads/) Category as first class concept, Functors between them, up to Monads, Kleisli Category, IO and List Monad