Proof: Simplify Product 2
Let's prove the following theorem:
(a ⋅ c) ⋅ ((1 / b) ⋅ (1 / d)) = (a / b) ⋅ (c / d)
Proof:
# | Claim | Reason |
---|---|---|
1 | (a ⋅ c) ⋅ ((1 / b) ⋅ (1 / d)) = ((a ⋅ (1 / b)) ⋅ c) ⋅ (1 / d) | (a ⋅ c) ⋅ ((1 / b) ⋅ (1 / d)) = ((a ⋅ (1 / b)) ⋅ c) ⋅ (1 / d) |
2 | ((a ⋅ (1 / b)) ⋅ c) ⋅ (1 / d) = (a ⋅ (1 / b)) ⋅ (c ⋅ (1 / d)) | ((a ⋅ (1 / b)) ⋅ c) ⋅ (1 / d) = (a ⋅ (1 / b)) ⋅ (c ⋅ (1 / d)) |
3 | (a ⋅ (1 / b)) ⋅ (c ⋅ (1 / d)) = (a / b) ⋅ (c / d) | (a ⋅ (1 / b)) ⋅ (c ⋅ (1 / d)) = (a / b) ⋅ (c / d) |
4 | (a ⋅ c) ⋅ ((1 / b) ⋅ (1 / d)) = (a / b) ⋅ (c / d) | if (a ⋅ c) ⋅ ((1 / b) ⋅ (1 / d)) = ((a ⋅ (1 / b)) ⋅ c) ⋅ (1 / d) and ((a ⋅ (1 / b)) ⋅ c) ⋅ (1 / d) = (a ⋅ (1 / b)) ⋅ (c ⋅ (1 / d)) and (a ⋅ (1 / b)) ⋅ (c ⋅ (1 / d)) = (a / b) ⋅ (c / d), then (a ⋅ c) ⋅ ((1 / b) ⋅ (1 / d)) = (a / b) ⋅ (c / d) |
Comments
Please log in to add comments