Jon Lang wrote:
> I stand corrected.  That said: with the eigenstates method now
> private, it is now quite difficult to get a list of the eigenstates of
> the above expression.

I thought about that a bit, and I think eigenstates are not hard to
extract (which somehow makes the privateness of .eigstates a bit
absurd), simply by autothreading:

sub e(Object $j) {
  my @states;
  -> Any $x { @states.push($x) }.($j);
  return @states;


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