Even permutation
Posted: Tue Oct 11, 2016 9:59 am
Let $\alpha$ and $\beta$ be elements of $\mathcal{S}_n$. Prove that $\alpha^{-1} \beta^{-1}\alpha \beta$ is an even permutation.
mathematics - university - maths - analysis - algebra - geometry
https://www.mathimatikoi.org/forum/