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Mathematics, 11.06.2021 03:20 rosas8
Seja G um grupo e sejam H e K subgrupos de G. Mostre que H βͺ K e um subgrupo de G se e somente se H β K ou K β H.
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Hi iβm not sure how to do question 20 if u could explain how to do it thatβd b great
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Seja G um grupo e sejam H e K subgrupos de G. Mostre que H βͺ K e um subgrupo de G se e somente se H...
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