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.

Step 3

Steps 2 and 3

Step 2

Step 1

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. 

 Step 3 

 Steps 2 and 3 

 Step 2 

 Step 1

anonymous · Answer

@Hero  i need ur assistance!!!!  plzz

hero · Answer

Hint: With indirect proofs, you're allowed to assume the OPPOSITE of the given statement is true.

anonymous · Answer

soo that means the anwser would be..... step 1 ??????????

anonymous · Answer

thnx again 4 the help hero!!!