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In algebra, the opposite of a ring is another ring with the same elements and addition operation, but with the multiplication performed in the reverse order. More precisely, the opposite of a ring (R, +, ·) is the ring (R, +, ∗) whose…
Read full article on Wikipedia · CC-BY-SAIn algebra, the opposite of a ring is another ring with the same elements and addition operation, but with the multiplication performed in the reverse order. More precisely, the opposite of a ring (R, +, ·) is the ring (R, +, ∗) whose multiplication ∗ is defined by a ∗ b = b · a. Ring addition is per definition commutative.
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