Order of Cosets Equals Order of Subgroup | Abstract Algebra

12:15
Lagrange's Theorem and Index of Subgroups | Abstract Algebra

18:08
Two Step, One Step, and Finite Subgroup Tests | Abstract Algebra

15:26
Cosets in Group Theory | Abstract Algebra

12:24
[a^k] = [a^gcd(n,k)] and |a^k| = n/gcd(n,k) Proof (Abstract Algebra)

16:03
proof by just look at it!

33:37
Something Strange Happens When You Trust Quantum Mechanics

15:27
A subgroup H of a group G is a normal subgroup of G if and only if ghg^-1 ∈ H ∀ g∈G and h∈H.

11:24