3 ms·

No, but I'll probably crowd source when the book is final.

• DashRattlesnake 10y ago
  Just curious, but why crowd source? You're the author, I assume you wrote the questions, didn't you solve them when you wrote them?
  • hadley 10y ago
    I love your sweet naivety about the process of writing exercises :P
    • geebee 10y ago
      The proof is trivial and is left as an exercise for the publisher ;)