Properties of Normal Subgroups

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In this video, we prove that subgroups are index 2 are normal and we prove that normal subgroups are exactly those closed under conjugation.

This is lecture 30 (part 2/5) of the lecture series offered by Dr. Andrew Misseldine for the course Math 4220 - Abstract Algebra I at Southern Utah University. A transcript of this lecture can be found at Dr. Misseldine's website or through his Google Drive at:

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