Proof: Reorder Terms 9
Let's prove the following theorem:
(b / c) ⋅ c = (b ⋅ c) / c
Proof:
# | Claim | Reason |
---|---|---|
1 | b / c = b ⋅ (1 / c) | b / c = b ⋅ (1 / c) |
2 | (b / c) ⋅ c = (b ⋅ (1 / c)) ⋅ c | if b / c = b ⋅ (1 / c), then (b / c) ⋅ c = (b ⋅ (1 / c)) ⋅ c |
3 | (b ⋅ (1 / c)) ⋅ c = (b ⋅ c) ⋅ (1 / c) | (b ⋅ (1 / c)) ⋅ c = (b ⋅ c) ⋅ (1 / c) |
4 | (b ⋅ c) ⋅ (1 / c) = (b ⋅ c) / c | (b ⋅ c) ⋅ (1 / c) = (b ⋅ c) / c |
5 | (b / c) ⋅ c = (b ⋅ c) / c | if (b / c) ⋅ c = (b ⋅ (1 / c)) ⋅ c and (b ⋅ (1 / c)) ⋅ c = (b ⋅ c) ⋅ (1 / c) and (b ⋅ c) ⋅ (1 / c) = (b ⋅ c) / c, then (b / c) ⋅ c = (b ⋅ c) / c |
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