# Chapter Exercises
## Determine the kinds
1. `*`
2. `* -> *`

## String processing
see src/stringproc.hs

## Validate the words
see src/validateword.hs

## It's only Natural
see src/naturals.hs

## Small library for Maybe
see src/libmaybe.hs

## Small library for Either
see src/libeither.hs

## Write your own iterate and unfoldr
see src/itunfold.hs

## Finally something other than a list!
see src/binarytree.hs