Question

question 6 of 49
what is typically the first step of an indirect proof?
a. writing qed to show the proof is done
b. assuming what you are trying to prove is true
c. listing reasons for each step of the proof
d. assuming that the opposite of what you are trying to prove is true

Explanation:

In an indirect proof (proof by contradiction), the first step is to assume the opposite of what we want to prove. This allows us to show that such an assumption leads to a contradiction. Writing QED is for ending a proof, assuming what we want to prove is the wrong - way around, and listing reasons is part of the proof - writing process but not the first step of an indirect proof.

Answer:

D. Assuming that the opposite of what you are trying to prove is true