Question 1
Which of the following is the first step in proving a statement by mathematical induction?
Question 2
In a direct proof, what is the primary logical structure used?
Question 3
Which of the following expressions can be used to prove that the sum of two even integers is even?
Question 4
When proving by induction that $n^2 - n$ is always even for all positive integers $n$, what is the inductive step?
Question 5
Which of the following is an example of a direct proof?
