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applied-fp-course/level07/README.md
Sean Chalmers 519bbf86ae Updated 3/7 Readmes 
Called out use of doctest in level 3.

Removed redundant language pragma.

Removed comment regarding new constructor that was not new at that stage.
2017-10-04 15:28:32 +10:00

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Level 07

Handling those Either values everywhere is a bit awkward, this exercise introduces another monad transformer, ExceptT. As well as the concept of a 'transformer stack' and what benefits it can provide.

Start in src/FirstApp/AppM.hs.