Exercises for § 3

15 exercises. No solution has been written for any of them yet.

• Exercise 14
• Exercise 15 harder
• Exercise 16 harder
• Exercise 17
• Exercise 18 harder
• Exercise 19 harder
• Exercise 20
• Exercise 21 harder
• Exercise 22 harder
• Exercise 23
• Exercise 24
• Exercise 25
• Exercise 26 harder
• Exercise 27 harder
• Exercise 28 harder