Proof: Add Inverse
Let's prove the following theorem:
(b ⋅ a) + ((a ⋅ b) ⋅ (-1)) = 0
Proof:
| # | Claim | Reason |
|---|---|---|
| 1 | b ⋅ a = a ⋅ b | b ⋅ a = a ⋅ b |
| 2 | (b ⋅ a) + ((a ⋅ b) ⋅ (-1)) = 0 | if b ⋅ a = a ⋅ b, then (b ⋅ a) + ((a ⋅ b) ⋅ (-1)) = 0 |
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