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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.

ConnorDoyle

package test

import scala.reflect.runtime.universe._

object ReflectionHelpers extends ReflectionHelpers

trait ReflectionHelpers {

  protected val classLoaderMirror = runtimeMirror(getClass.getClassLoader)