Embedding of $SO(3)$ into $S_{\infty}$
This is a nice question which I don't have any clue.
Let $S_{\infty}$ be the group of all permutations of $\mathbb{N}.$
Is it possible to embed $SO(3)$ into $S_{\infty}?$
The answer is yes, as proved in this paper:
http://matwbn.icm.edu.pl/ksiazki/fm/fm164/fm16412.pdf