*in which we explore conjugacy classes in and , and prove that is simple.
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# alternating group

# Groups Lecture 8

*in which we show that the sign of a permutation is a surjective group homomorphism, meet cosets and prove Lagrange’s Theorem.
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# Groups Lecture 21

*in which we meet the Möbius group as transformations of the Riemann Sphere.
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# Groups Lecture 17

*in which we explore conjugacy classes in and , and prove that is simple.
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# Groups Lecture 8

*in which we show that the sign of a permutation is a surjective group homomorphism, and meet cosets.
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