Introduction: * tactics-examples.v Exercises: * coqITP2015-ex2.v (read and/or complete) * coqITP2015-ex3.v: try to do the exercises in this order: a) Exercise 1 b) Exercise 2 - Q7, Q8, Q9 c) Exercise 5 d) Exercise 4 Exercises in coqITP2015-ex2.v and coqITP2015-ex3.v come from https://coq.inria.fr/coq-itp-2015