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lispm

Until later? What later. An hour later?

Let's look at a few chapter titles of Real World Haskell.

Chapter 2: Types and Functions

Chapter 3: Defining types, streamlining functions

Chapter 4: Functional Programming

Chapter 6: Using Typeclasses

Chapter 14: Monads

Chapter 15: Programming with Monads

Chapter 18: Monad transformers

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It's a matter of perspective -- to someone who has taken a university class on lambda calculus/on logic that had a chapter on lambda calculus (e.g. as part of a M.Sc. in mathematical logic or CS), anything in RWH would probably seem extremely basic and superficial. It doesn't even introduce most of the basic things a first chapter in a book on lambda calculus would probably introduce you to.

My degree was also heavy on FP and LP alongside many other themes.

I think the biggest issue is with those developers that never got a degree or were unfortunate to land in a degree that taught programming languages instead of programming concepts.

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