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  "body": "\n## Summary\n\nIn mathematics, especially in the area of abstract algebra that studies infinite groups, the adverb **virtually** is used to modify a property so that it need only hold for a [[subgroup|0X1JXT47GA]] of finite [[index|0DTXBQPA2S]]. Given a property P, the group *G* is said to be *virtually P* if there is a finite index subgroup $H \\le G$ such that *H* has property P.\n",
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