Modern Algebra Theorems

 Basic set theory 

Set 

Methods of representing set

Types of sets 

Subsets

Operations on sets  

General properties of sets

Modular arithmetic  

Modular Arithmetic

Relation of congruence modulo n in the set of integers

Addition modulo of a positive integer n 

Multiplication modulo of a positive integer n 

Divisibility in the set of integers

Greatest common divisor

Relatively prime  integer

Prime integer

Congruence relation 

Residue classes modulo n 

Algebra of residue classes

Linear congruence 


Permutation

Symbol

Equality of two permutations

Identity permutation

Product or composition of permutations

Properties of permutations

Transformation groups

Orbit of a permutation

Circular or cyclic permutation

One-row symbol

Length

Disjoint cycles

Transposition

Inversions

Even & odd permutations

Alternating set

Alternating group

Regular permutation group


Group theory

Binary operation

Algebraic structure

Group

Groupoid

Semi group

Monoid

Abelian group

Finite & infinite groups

Order of a group

Properties of group  

Multiplication & addition tables

Group table

Integral power of an element

Order of an element of a group

Cyclic group

Properties of cyclic groups


Subgroups

Complex

Subgroups

Improper & proper subgroups

Algebra of complex of a group

Criterion for a complex to be a subgroup

Algebra of subgroups

Cyclic group

Properties of cyclic groups

Cyclic subgroups

Co-sets

Properties of co-sets

Co-set decomposition

Transform

Index of subgroups in a group

Euler function

Normal subgroups

Simple group

Hamiltonian group

Conjugate elements

Self conjugate elements

Conjugate class

Conjugate subgroups

Self conjugate subgroups

Conjugate class of a subgroup

Centrariser or normalizer

Normalizer of a subgroup of a group

Class equation of a group

Centre of a group

Quotient groups


Homomorphism

Homomorphism

Types of homomorphism

Kernel of homomorphism

Isomorphism of groups

Automorphism

Inner automorphism

Automorphism groups



Ring theory

Ring

Types of rings

Properties of a ring

Subrings

Integral domain

Subdomain

Ordered integral domain

Characteristic of a ring

Field

Subfield

Prime field

Homomorphism

Ring homomorphism

Ring isomorphism

Kernel of a ring homomorphism

Ideals

Types of ideals

Properties of ideals 

Algebra of ideals 

Quotient rings 



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