An associative Latin square is a group. A very short proof

Autor: Kochetkov, Yury
Rok vydání: 2022
Předmět:
Druh dokumentu: Working Paper
Popis: A Latin square of order $n$ with symbols $a_1,\ldots,a_n$ can be considered as a multiplication table for binary operation in the set $A=\{a_1,\ldots,a_n\}$. We prove that, if this operation is associative, then $A$ is a group.
Comment: 2 pages
Databáze: arXiv