Alejandro Serrano Mena on Why Functors and Applicatives Compose but Monads Don't

Описание: In this presentation, Alejandro is going to talk about one of the many kinds of composition available in Haskell, namely "functor composition": for any two functors we can create a new one. Some functors, such as applicatives and monads, have additional structure. Interestingly, applicatives can be composed to get a new applicative, but the same does not happen for monads. This has important implications: since monads do not compose, we need something else.

Join us for a stimulating evening discussion with a true scholar of functional programming. This talk will be especially appropriate for beginners to Haskell who would like a better understanding of one of its fundamental concepts: composition.

Alejandro is a senior software engineer at 47 Degrees, devoting his time to training and open source around Haskell. Before that, he held several positions at Utrecht University, from which he obtained a Ph.D. on a topic related to compiling functional languages. He has wide experience, as a speaker and lecturer, in introducing functional concepts and is the author of the books, "Practical Haskell" and "The Book of Monads".

Slides available here: https://www.dropbox.com/s/1j828vngpm0...

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