Actegories

2 comments

• lyall 41 minutes ago
  If you saw TFA and thought "hmmm yes, I know some of those words", then I can recommend the author's own lecture series on YouTube [0]. It's an intro to and overview of category theory aimed at programmers, with the requisite context and motivation for why anyone should care. It's long but worth the time investment IMHO.

  0: http://www.youtube.com/playlist?list=PLbgaMIhjbmEnaH_LTkxLI7...

  [-]
  • mkw5053 23 minutes ago
    He also has an excellent online/PDF version of the material[0]. All of it is really mind opening stuff, and fun!

    [0] https://bartoszmilewski.com/2014/10/28/category-theory-for-p...
• ultimatefan1 1 hour ago
  this has a real "a monad is a monoid in the category of endofunctors" energy to it
  [-]
  • paulluuk 1 hour ago
    > To understand actegories, let’s start with the definition of a monoidal category

    Definitely not written for someone with my starting knowledge, haha.