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## Advanced-FP-with-Scala.md

      
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                daewon
                / Advanced-FP-with-Scala.md
            
            
              Created
              September 13, 2016 15:00
                — forked from jdegoes/Applied-FP-with-Scala.md
            
          
    Advanced Functional Programming with Scala - Notes

Copyright © 2017 Fantasyland Institute of Learning. All rights reserved.
1. Mastering Functions

A function is a mapping from one set, called a domain, to another set, called the codomain. A function associates every element in the domain with exactly one element in the codomain. In Scala, both domain and codomain are types.
val square : Int => Int = x => x * x

  
## jargon.md

      
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                daewon
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              August 29, 2015 14:26
                — forked from cb372/jargon.md
            
              
                Category theory jargon cheat sheet
              
          
    Category theory jargon cheat sheet

A primer/refresher on the category theory concepts that most commonly crop up in conversations about Scala or FP. (Because it's embarassing when I forget this stuff!)
I'll be assuming Scalaz imports in code samples, and some of the code may be pseudo-Scala.
Functor

A functor is something that supports map.