Proof: Algebra 7
Let's prove the following theorem:
(a ⋅ x) / x = a
Proof:
# | Claim | Reason |
---|---|---|
1 | x / x = 1 | x / x = 1 |
2 | a ⋅ (x / x) = a ⋅ 1 | if x / x = 1, then a ⋅ (x / x) = a ⋅ 1 |
3 | a ⋅ 1 = a | a ⋅ 1 = a |
4 | a ⋅ (x / x) = a | if a ⋅ (x / x) = a ⋅ 1 and a ⋅ 1 = a, then a ⋅ (x / x) = a |
5 | a ⋅ (x / x) = (a ⋅ x) / x | a ⋅ (x / x) = (a ⋅ x) / x |
6 | (a ⋅ x) / x = a | if a ⋅ (x / x) = (a ⋅ x) / x and a ⋅ (x / x) = a, then (a ⋅ x) / x = a |
Comments
Please log in to add comments