Loop satisfying the weak Lagrange property: Difference between revisions

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{{algebra loop property}}
{{loop property}}


==Definition==
==Definition==


An [[algebra loop]] is said to satisfy '''Lagrange's property''' if it is finite (i.e., its underlying set is finite) and the order (i.e., size) of any subloop of the algebra loop divides the order (i.e., size) of the whole algebra loop.
An [[finite loop]] is said to satisfy the '''weak  property''' if every [[subloop]] is a [[defining ingredient::Lagrange-like subloop]], i.e., the [[defining ingredient::order of a loop|order]] (number of elements) of any subloop divides the order of the loop.


==Relation with other properties==
==Relation with other properties==
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| [[Weaker than::Finite group]] || || [[Lagrange's theorem]] || || {{intermediate notions short|algebra loop satisfying Lagrange's property|finite group}}
| [[Weaker than::Finite group]] || || [[Lagrange's theorem]] || || {{intermediate notions short|algebra loop satisfying Lagrange's property|finite group}}
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| [[Weaker than::Finite Moufang loop]] || || [[every finite Moufang loop satisfies Lagrange's property]] || || {{intermediate notions short|algebra loop satisfying Lagrange's property|finite Moufang loop}}
| [[Weaker than::Finite Moufang loop]] || || [[every finite Moufang loop satisfies the weak Lagrange property]] || || {{intermediate notions short|algebra loop satisfying Lagrange's property|finite Moufang loop}}
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| [[Weaker than::Loop satisfying the strong Lagrange property]] || every subloop satisfies the weak Lagrange property || || || {{intermediate notions short|algebra loop satisfying the weak Lagrange property|algebra loop satisfying the strong Lagrange property}}
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Latest revision as of 16:04, 9 March 2010

This article defines a property that can be evaluated for a loop.
View other properties of loops

Definition

An finite loop is said to satisfy the weak property if every subloop is a Lagrange-like subloop, i.e., the order (number of elements) of any subloop divides the order of the loop.

Relation with other properties

Stronger properties

Property Meaning Proof of implication Proof of strictness (reverse implication failure) Intermediate notions
Finite group Lagrange's theorem |FULL LIST, MORE INFO
Finite Moufang loop every finite Moufang loop satisfies the weak Lagrange property |FULL LIST, MORE INFO
Loop satisfying the strong Lagrange property every subloop satisfies the weak Lagrange property |FULL LIST, MORE INFO