Basic properties For , the group An is the commutator subgroup of the symmetric group Sn with index 2 and has therefore n!/2 elements. It is the kernel of the signature group homomorphism explained under symmetric group.
Basic properties For , the group An is the commutator subgroup of the symmetric group Sn with index 2 and has therefore n!/2 elements It is the kernel of the signature group homomorphism explained under symmetric group.