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Apr 13, 2017 at 12:57 history edited CommunityBot
replaced http://mathoverflow.net/ with https://mathoverflow.net/
Dec 18, 2014 at 18:19 history edited Sebastien Palcoux CC BY-SA 3.0
Update of the sentence about the percentage.
May 7, 2014 at 18:41 comment added Sebastien Palcoux About question 1, there are two parts ($\exists \sigma$... and $\forall \sigma$...). For the second part, there is a counterexample simplier than $(R^{A_7} \subset R^{S_4})$: just take $(R^{S_4} \subset R^{\mathbb{Z}_4})$ because its lattice is an inhomogeneous single chain.
Mar 31, 2014 at 17:48 vote accept Sebastien Palcoux
Mar 31, 2014 at 17:48 history edited Sebastien Palcoux CC BY-SA 3.0
Minor edits
Mar 1, 2014 at 12:22 history edited Sebastien Palcoux CC BY-SA 3.0
I've fixed a mistake.
S Mar 1, 2014 at 12:08 history answered Sebastien Palcoux CC BY-SA 3.0
S Mar 1, 2014 at 12:08 history made wiki Post Made Community Wiki by Sebastien Palcoux