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| | blog.sigfpe.com
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| | [AI summary] The article explains profunctors in Haskell, their mathematical foundations, composition through coends, and their relationship to Arrows and tensors.
| | bartoszmilewski.com
4.2 parsecs away

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| | Abstract: I derive a free monoidal (applicative) functor as an initial algebra of a higher-order functor using Day convolution. I thought I was done with monoids for a while, after writing my Monoids on Steroids post, but I keep bumping into them. This time I read a paper by Capriotti and Kaposi about Free Applicative...
| | www.jeremykun.com
4.1 parsecs away

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| | Last time we defined and gave some examples of rings. Recapping, a ring is a special kind of group with an additional multiplication operation that "plays nicely" with addition. The important thing to remember is that a ring is intended to remind us arithmetic with integers (though not too much: multiplication in a ring need not be commutative). We proved some basic properties, like zero being unique and negation being well-behaved.
| | eranstiller.com
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| Unlock your career potential in 2023! Discover the 75 top software engineering skills you need to stand out in the tech industry. Start learning today!