print eigenstates( any(1,2,3,4) == any(1,2) );;
1 2

##</code><code>##

print eigenstates( any(1,2,3,4) != any(1,2) );;
1 2

##</code><code>##

print eigenstates( any(1,2) != any(1,2,3,4) );;
4 1 3 2