Suppose $G$ is a finite simple group and $|G|$ is a multiple of $60$. Does it follow that $G$ has a subgroup isomorphic to $A_{5}$? If so, can this be proven without using the Classification?
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title is less overstated, since this is not about the converse in much generality
DavidLHarden
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(A very limited instance of) Lagrange's Theorem's converse and A_5
DavidLHarden
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