Abstract Algebra 61: Quotient group examples 

Abstract Algebra 61: Quotient group examples
Abstract: If G is a group and H is a normal subgroup, then one can form the quotient group G/H. We give two examples of quotient groups, and say a bit about what the structure of the (simpler) group G/H can tell you about the larger group G.
This video accompanies the class "Introduction to Abstract Algebra" at Colorado State University:
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