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# Learn You a Haskell for Great Good
## Chapter 3 : Syntax in Functions
- As-patterns - Appear easy to overlook/forget
- guards, where, let, and case - Need practice in all of them. They look
like they'll be easy to confuse. "Let" in particular looks tricky.
## Chapter 5 : Higher-Order Functions
- (.) vs ($) was confusing. This summarizes their fundemental differences
thanks to the #haskell channel on freenode:
(f $ g x) === f (g x) --while-- (f . g x) === (\y -> f ((g x) y))
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