Prove following statements using indirect proof.
Premise 1: If Bob arrives on time for work, then he woke up on schedule.
Premise 2: If he wakes up on time, then his alarm rang.
Premise 3: If his alarm rings, then the power did not fail.
Theorem: If the power fails, then Bob will be late for work.
Given: The power fails.
Prove: Bob will be late for work.
Proof __________________________
Statements
Reasons
1.The power fails.
2.Assume Bob arrives on time for work.
3.He woke up on schedule.
4.His alarm rang.
5.The power did not fail.
6.Given
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