[Condition of type SIMPLE-ERROR]
One can also create permutations with LIST-TO-PERM, which converts a
+list to a permutation. The companion function PERM-TO-LIST does the
+opposite operation, but it's not recommended to use list
+representations of permutations.
Lastly, there is an experimental reader macro for permutations, which
are created at read time. To enable the syntax, use