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Homework Help: Alternating Group

  1. Jul 8, 2011 #1
    For any elements σ, τ ∈ Sn, show that στσ-1τ-1 ∈ An.
  2. jcsd
  3. Jul 8, 2011 #2
    What did you try already?? Just calculate the sign of the element.
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