Any thoughts on the following inconsistency? As near as I can tell,
the inverse() method is being supplied by some code meant for
combinatorics (words?). Should permutation elements be given their
own inverse method?
sage: S = SymmetricGroup(4)
sage: s = S("(1,2,3)")
sage: type(s)
<type
'sage.groups.perm_gps.permgroup_element.PermutationGroupElement'>
sage: s^-1
(1,3,2)
sage: s.inverse()
(1,3,2)
sage: A = AlternatingGroup(4)
sage: a = A("(1,2,3)")
sage: type(a)
<type
'sage.groups.perm_gps.permgroup_element.PermutationGroupElement'>
sage: a^-1
(1,3,2)
sage: a.inverse()
---------------------------------------------------------------------------
AttributeError Traceback (most recent call
last)
<snip>
AttributeError:
'sage.groups.perm_gps.permgroup_element.PermutationGroupElement'
object has no attribute 'inverse'
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