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Re:A monad is a monoid in the category of endofunctors, what... by rgoulter on Sunday February 10, 2019 @10:14AM (#19128069)
Further reading (at a much slower pace): https://bartoszmilewski.com/2014/10/28/category-theory-for-p... Has examples in C++ and Haskell.
Re:A monad is a monoid in the category of endofunctors, what... by yannis on Sunday February 10, 2019 @10:25AM (#19128100)
His videos on you tube are also very informative.