Normal Subgroup - Theorem 1- Group Theory

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Here in this video i will explain the theorem which states that A subgroup H of a Group G is normal in G if and only if every left coset of H in G is equal to some right coset of H in G.

If you are looking out for any of these queries then solution is here:
1) Normal Subgroup Theorems
2)theorems of Normal Subgroup
3) A subgroup H of a Group G is normal in G if and only if every left coset of H in G is equal to some right coset of H in G
4) normal subgroup Theorems in English

everything is explained in English

Link for the video is as follows:
congruence Relation is an Equivalence relation - Group Theory

Equivalence relation - Equivalence Class - Properties - Group Theory

Congruence relation- Equivalence Class - Properties - Group Theory

Cosets are either disjoint or equal - Group Theory

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This video will be very useful if you are student of Higher Classes in mathematics like B.Sc, M.Sc , Engineering and if you are preparing for UGC Net and iit Jam etc.

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Before this topic i did various other topics of Real Analysis:
My other Videos are as follows:

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Compactness

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Infinite Sequences - Real analysis

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