> Do you mean to say that we check that (1,2) is in the domain, and
> utilize this info?

O_O

Are you doing this on purpose ?

If you want to find the "orbit" of ((1,2),(1,2)) with Sage and if we
implement this "action" thing, then :

- When you write g.action( ((1,2),(1,2)), action="OnPoints") Sage refuses
what you give it for ((1,2),(1,2)) does not belong to the domain
- When you write g.action( ((1,2),(1,2)), action="OnTuples") then Sage
checks that (1,2) is indeed in the doman (it is a vertex of your circuit)
and returns [((1,2),(1,2)), (1,1), (2,2)], that is a set of pairs (vertex,
vertex)
- When you write g.action( ((1,2),(1,2)), action="OnSets") Then Sage either
refuses to work because your "set" contains twice the same element, or
reduces your "set" to ((1,2)) in which case it returns a list of sets equal
to [((1,2)), (1), (2)]

When is it ambiguous ?

Nathann

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