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- Exercise /
- AreTheNaturalNumbersASubgroupOfTheIntegers
- CyclicGroupsAreAbelian
- TheSetOfSimpleShiftPermutationsOn26LettersIsIsomorphicToZ26
- TheSubgroupsOfZAreNZ
- TheSymmetricGroupOfDegreeNIsAGroup
- Problem /
- AffineEncryptionKeyIntroduction
- CancellationLawsForGroups
- CanWeUseDivisionToCreateAGroup
- EisensteinsCriterion
- HeisenbergMatrixGroup
- InversesInGroups
- IrreduciblesBehaveLikePrimeNumbers
- ModPIrreducibilityTest
- RationalRootTest
- ReducibilityOverQImpliesReducibilityOverZ
- ReducibilityTestForDegrees2And3
- SpansOfPermutationsAreSubgroups
- SubgroupsAreSubsetsThatAreClosedUnderProductsAndInverse
- TheGCDTheoremProof
- TheInverseInAFiniteGroupIsAPowerOfTheElement
- TheProductOfPrimitivesIsPrimitive
- WeKnowLeftPXRightIsMaximalIfAndOnlyIfPXIsIrreducible
- ZNAndUNAreGroups
- Solution /
- AffineEncryptionKeyIntroductionJosh
- CancellationLawsForGroupsJason
- CanWeUseDivisionToCreateAGroupMikai
- HeisenbergMatrixGroupJosh
- InversesInGroupsJoey
- PowersOfProductsInAnAbelianGroupLevi
- SpansOfPermutationsAreSubgroupsBen
- TheInverseInAFiniteGroupIsAPowerOfTheElementTyler