Is there a standard convention for multiplication tables for non-commutative multiplication? Should the first multiplicand be the rows or columns?
That is, if we have
| * | a | b |
|---|---|---|
| a | a | b |
| b | a | b |
then is $ab = b$ or $a$?
2026-03-26 06:33:51.1774506831
convention for non-commutative multiplication tables
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