Proof: Half Half One
Let's prove the following theorem:
((a ⋅ 1) / 2) + ((a ⋅ 1) / 2) = a
Proof:
# | Claim | Reason |
---|---|---|
1 | (a ⋅ (1 / 2)) + (a ⋅ (1 / 2)) = a | (a ⋅ (1 / 2)) + (a ⋅ (1 / 2)) = a |
2 | a ⋅ (1 / 2) = (a ⋅ 1) / 2 | a ⋅ (1 / 2) = (a ⋅ 1) / 2 |
3 | ((a ⋅ 1) / 2) + (a ⋅ (1 / 2)) = a | if (a ⋅ (1 / 2)) + (a ⋅ (1 / 2)) = a and a ⋅ (1 / 2) = (a ⋅ 1) / 2, then ((a ⋅ 1) / 2) + (a ⋅ (1 / 2)) = a |
4 | ((a ⋅ 1) / 2) + ((a ⋅ 1) / 2) = a | if ((a ⋅ 1) / 2) + (a ⋅ (1 / 2)) = a and a ⋅ (1 / 2) = (a ⋅ 1) / 2, then ((a ⋅ 1) / 2) + ((a ⋅ 1) / 2) = a |
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