Partially solve Exercise 1.7.
Provide solution for Exercise 1.8.
Compensate for reality’s lack of pensieves.
Mostly solve exercise 1.15.
Tweak exercise 1.16 to use my "prelude".
Tweak ex 1.17 to use the prelude’s `halve`.
fixup! Compensate for reality’s lack of pensieves.
Solve exercise 1.18 pretty darn well.
Solve 1.19 (again) using "Literate Programming".
Provide solution for exercise 1.4.
Provide solution for exercise 1.5.
Provide solution for exercise 1.6.
fixup! Some trivial cleanups.
fixup! Some trivial cleanups.
Solve exercise 1.20 pretty darn well.
Procrastinate on "Testing for Primes" exercises.
fixup! Prefer "#lang racket/base" over "#lang racket".
Add a couple clarifications to exercise 1.29.
Add question/template for exercise 1.30.
Solve exercise 1.30.