Uploaded December 2020 | Updated September 2026, 2 weeks ago

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Functions with two-sided inverse are bijective: youtu.be/XnkgXYvwJZw
First isomorphism theorem explanation: youtu.be/ssVIJO5uNeg

Proof that every group is isomorphic to a subgroup of the symmetric group. We use group actions to derive this very interesting fact in group theory!

Group Theory playlist: youtube.com/playlist?list=PLug5ZIRrShJHDvvls4OtoBHi6cNnTZ6a6

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Music: OcularNebula - The Lopez