Consider the following permutation f in S6:
f = 1 2 3 4 5 6
.....6 1 3 5 4 2
(The above is one set all in parentheses...)
Calculate f^-1
How do I do this?
Yes, that is fine. You could also write your group in the cycle notation as a product of disjoint cycles . In this notation it's preferred not to write cycles that have only one entry. Any missing element is mapped to itself.
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which is the same as your answer in array notation.