Amanda did the following proof in her logic class. Which step in the indirect proof did she do incorrectly?

Prove: 9 is divisible by 3.

Step 1: Assume that 9 is divisible by three.
Step 2: 3 times 3 equals nine. 9 divided by three is three.
Step 3: 9 is divisible by 3.
Answer
Step 2
Step 1
Step 3
Steps 2 and 3

Question

Amanda did the following proof in her logic class.  Which step in the indirect proof did she do incorrectly?
 
Prove:  9 is divisible by 3.
 
Step 1: Assume that 9 is divisible by three.  
Step 2:  3 times 3 equals nine. 9 divided by three is three.
Step 3:  9 is divisible by 3.
Answer
		Step 2
		Step 1
		Step 3
		Steps 2 and 3

aroub · Answer

Step 1: Assume that 9 is divisible by three.