Proof: Zero Plus a 2
Let's prove the following theorem:
if the following are true:
- a = 0
- b = e
then a + b = e
Proof:
Given
| 1 | a = 0 |
|---|---|
| 2 | b = e |
| # | Claim | Reason |
|---|---|---|
| 1 | a + b = 0 + e | if b = e and a = 0, then a + b = 0 + e |
| 2 | 0 + e = e | 0 + e = e |
| 3 | a + b = e | if 0 + e = e and a + b = 0 + e, then a + b = e |
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