• anonymous
Angie did the following proof in her logic class. Which step in the indirect proof did she do incorrectly? Prove: 12 is divisible by 6. Step 1: Assume that 12 is not divisible by 6. Step 2: 2 times 6 is equal to 12. 12 divided by 6 is 2. Step 3: 12 is not divisible by 6. Answer Step 1 Step 2 Steps 1 and 2 Step 3
  • Stacey Warren - Expert
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  • jamiebookeater
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  • anonymous
i think it is 2 but wasnt sure
  • anonymous
Step 3, I think. Step 1 assumed 12 non-divisible by 6. As an assumption, it can't be wrong. Step 2 proved the assumption false, a solid proof. All that is left is that the opposite of Step 1 is true, hence, 12 is divisible by 6. The conclusion(step 3) is wrong.
  • aroub
Yes, step 3.

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