Cauchy's theorem in group theory

E620659

Cauchy's theorem in group theory is a fundamental result stating that if a finite group’s order is divisible by a prime p, then the group contains an element (and hence a subgroup) of order p.

All labels observed (4)

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Statements (35)

Predicate Object
instanceOf theorem in group theory ⓘ
appliesTo finite groups ⓘ
assumes group is finite ⓘ
p is a prime number ⓘ
concerns orders of elements in finite groups ⓘ
prime divisors of the order of a group ⓘ
conclusion there exists a subgroup of order p in the group ⓘ
there exists an element of order p in the group ⓘ
doesNotRequire group to be abelian ⓘ
domain group theory ⓘ
field abstract algebra ⓘ
group theory ⓘ
generalizedBy Sylow theorems ⓘ
hasProofTechnique counting arguments in finite groups ⓘ
group action methods ⓘ
orbit-stabilizer arguments ⓘ
historicalPeriod 19th century mathematics ⓘ
holdsFor finite abelian groups ⓘ
finite non-abelian groups ⓘ
implies every finite abelian group has an element of order p for each prime p dividing its order ⓘ
existence of a subgroup of order p in a finite group whose order is divisible by p ⓘ
existence of an element of order p in a finite group whose order is divisible by p ⓘ
importance fundamental result in finite group theory ⓘ
isSpecialCaseOf results about existence of subgroups of given order ⓘ
namedAfter Augustin-Louis Cauchy ⓘ
namedForContribution Augustin-Louis Cauchy's work on permutation groups and finite groups ⓘ
relatedConcept order of a group ⓘ
order of an element ⓘ
subgroup of prime order ⓘ
relatedTo Lagrange's theorem in group theory ⓘ
statement If a finite group G has order divisible by a prime p, then G contains an element of order p. ⓘ
usedAs tool to show existence of elements of specific prime order ⓘ
usedIn basic structure theory of finite groups ⓘ
classification of finite groups ⓘ
proofs of Sylow theorems ⓘ

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Referenced by (4)

Full triples — surface form annotated when it differs from this entity's canonical label.

Lagrange's theorem in group theory → isGeneralizedBy → Cauchy's theorem in group theory ⓘ
Augustin-Louis Cauchy → notableFor → Cauchy’s theorem in group theory ⓘ
subject linked to: Augustin-Louis
linked to: Cauchy's theorem in group theory
Sylow theorems → relatedTo → Cauchy theorem for finite groups ⓘ
linked to: Cauchy's theorem in group theory
orbit-stabilizer theorem → relatedTo → Cauchy's theorem ⓘ
linked to: Cauchy's theorem in group theory